Wheat stripe rust,caused by Puccinia striiformis f.sp.tritici(Pst),is one of the most destructive fungal diseases of wheat,and seriously threatens safe production of the crop worldwide.In China,new races historically ...Wheat stripe rust,caused by Puccinia striiformis f.sp.tritici(Pst),is one of the most destructive fungal diseases of wheat,and seriously threatens safe production of the crop worldwide.In China,new races historically appeared and rapidly developed to be predominant races and have resulted in ineffectiveness and replacement of wheat resistance cultivars as well as massive reduction in yield.In the present study,the relative parasitic fitness of the two newlyemerged Yr5-virulent races(TSA-6 and TSA-9)were compared with those of four currently predominant Chinese races(CYR31,CYR32,CYR33,and CYR34)based on evaluation on 10 Chinese wheat cultivars.As a result,there were significant differences in the relative parasitic fitness parameters among overall tested races based on multiple comparison(LSD)analysis(P<0.05).The principal component analysis(PCA)of overall parasitic fitness parameters indicated that the sporulation ability,infection and spore survivability,expansion capacity,and potential pathogenicity were the most important parasitic fitness attributes of the tested races.Based on the establishment of extracted three principal components and a comprehensive factor score mathematical models,evaluations of the parasitic fitness attributes of tested races showed that the level of relative parasitic fitness of the tested six races was:CYR32(1.15)>TSA-9(0.95)>TSA-6(0.92)>CYR34(0.29)>CYR31(–1.54)>CYR33(–1.77).The results indicated that two Yr5-virulent races TSA-9 and TSA-6 possessed relative parasitic fitness higher than races CYR34,CYR31,and CYR33,but lower than race CYR32,and have potential risks in developing to be predominant races.Therefore,continual monitoring of both Yr5-virulent races,and their variants is needed.The use of wheat cultivars(lines)with Yr5 resistance gene singly in wheat breeding is essential for being avoided,and is suggested to combine with other effective stripe rust resistance genes.展开更多
There is little information about the bovine behavior and welfare during transportation and vaquejada race competitions. To test the hypothesis that the transport and racing of bovines produce chronic stress during th...There is little information about the bovine behavior and welfare during transportation and vaquejada race competitions. To test the hypothesis that the transport and racing of bovines produce chronic stress during these events, a study was performed to evaluate the behavior of bovines used for vaquejada races. Evaluations of cattle (n = 80) occurred on transportation (before, immediately, and 8 hours after transportation), and three days at Vaquejada Park (1 hour before, immediately, and 1 hour after the vaquejada race). Evaluators used a behavioral repertoire based on an ethogram for bovines and were previously trained. They used an observational and noninvasive method for one hour and applied a visual scanning method at transportation and for three days at the races. The results for pre-transport had greater idleness (102.9%), head/tail movements (57.4%), and agitation (49.8%). After transport, idleness (69.7%) was reduced, and agitation (79.5%) increased. Eight hours after this, sodomy/mounting/dominance (118.1%) was higher, followed by head/tail movements (92.8%), lying down (63.3%), and fatigue (53.3%). The results of vaquejada races revealed high feeding rates before and after races on the three evaluation days (53.6% - 30.0%), followed by rumination (72.0% - 44.5%). On all the evaluation days at the races, agitation was higher immediately after the races (87.9% - 66.1%). In conclusion, it was observed that the animals increased the frequency of behaviors indicative of acute stress immediately after transport and races but were able to recover the characteristic behavior a few hours after acute stress when transport and races followed the current official rules for both. Maintaining management standards for transport and vaquejada races, currently adopted, can reduce the impact on welfare and can be improved with regular scientific evaluations of the cattle involved to improve welfare through good practices.展开更多
Research progress was reviewed on the differential systems for physiologic races of Plasmodiophora brassicae Woron,including Williams,differential system and European clubroot differential（ECD） set.The existing prob...Research progress was reviewed on the differential systems for physiologic races of Plasmodiophora brassicae Woron,including Williams,differential system and European clubroot differential（ECD） set.The existing problems and countermeasures of the different differential systems were discussed,and a research status quo on the molecular identification and detection of clubroot pathogen in crucifers were introduced.展开更多
The rice( Oryza L. ) variety, Lijiangxintuanheigu(LTH), is a universally susceptible variety. A set of near-isogenic lines (NILs) of rice which has single resistance gene for each line was developed by use of LTH as r...The rice( Oryza L. ) variety, Lijiangxintuanheigu(LTH), is a universally susceptible variety. A set of near-isogenic lines (NILs) of rice which has single resistance gene for each line was developed by use of LTH as recurrent parent and Kusabue,Tsuyuake, K1, PiNo. 4, K60 and BL1, which are from Kiyosawa's differential varieties(KDV), as donor parents. Differentiating ability of these NILs to Philippine isolates was compared with that of their donor parents, KDV and IRRI' s NILs. The results of comparative studies were as follows: (1) Differentiating ability of Chinese NILs to Philippine isolates was much stronger than that of their donor parents and that of KDV. (2) Chinese NILs had similar ability to differentiate races to IRRI's NILs or higher differentiating ability than them. But IRRI's NILs almost had no differentiating ability to isolates from japonica rice-growing regions. They can not be used to differentiate races of isolates from japonica ricegrowing regions. Whereas, Chinese NILs can be used to differentiate races of isolates from both japonica ricegrowing regions and indica rice-growing regions. It was concluded that the set of Chinese NILs can be used as international differentials.展开更多
In order to clarify the main pathogens of tomato Fusarium wilt in Shanxi Province, China, morphological identification, elongation factor 1 alpha （EF-1α） sequence analysis, specific primer amplification and pathoge...In order to clarify the main pathogens of tomato Fusarium wilt in Shanxi Province, China, morphological identification, elongation factor 1 alpha （EF-1α） sequence analysis, specific primer amplification and pathogenicity tests were applied to study the isolates which were recovered from diseased plants collected from 17 different districts of Shanxi Province. The results were as follows： 1） Through morphological and molecular identification, the following 7 species of Fusarium were identified： F. oxysporum, F. solani, F. verticillioides, F. subglutinans, F. chlamydosporum, F. sporotrichioides, and F. semitectum; 2） 56 isolates of F. oxysporum were identified using specific primer amplification, among which, 29, 5 and 6 isolates were respectively identified as F. oxysporum f. sp. lycopersici physiological race 1, race 2, and race 3; 3） pathogenicity test indicated the significant pathogenicity of F. oxysporum, F. solani, F. verticillioides, and F. subglutinans to tomato plant. Therefore, among these 4 species confirmed as pathogenic to tomato in Shanxi, the highest isolation rate （53.3％） corresponded to F. oxysporum. Three physiological species, race 1, race 2, and race 3 of F. oxysporum f. sp. lycopersici are detected in Shanxi, among which race 1 is the most widespread pathogen and is also considered as the predominant race.展开更多
Ug99, also designated as TFKSK, is a race of Puccinia graminis Pers.：Pers f. sp. tn＇tici Eriks. and E. Henn （Pgt） with broad virulence to wheat. It is the first known Pgt race possessing virulence to Sr31, a stem ...Ug99, also designated as TFKSK, is a race of Puccinia graminis Pers.：Pers f. sp. tn＇tici Eriks. and E. Henn （Pgt） with broad virulence to wheat. It is the first known Pgt race possessing virulence to Sr31, a stem rust resistance （Sr） gene deployed in wheat varieties world- wide （Singh et al., 2011 ）. Since the first detection of TFKSK in 1998, a total of 13 Ug99 variants have been identified in several African countries.展开更多
Yellow Rust （stripe） rust （Puccinia striiformis West. f. sp. tritici） is one of the most epidemic diseases infect wheat in cold and wet regions. In 1988, this disease caused a loss of seasonal production amounted ...Yellow Rust （stripe） rust （Puccinia striiformis West. f. sp. tritici） is one of the most epidemic diseases infect wheat in cold and wet regions. In 1988, this disease caused a loss of seasonal production amounted 70% on wheat variety Mexipak in Syria, and recurrent infection in 2010, caused by a virulent race called Yr27, caused a considerable loss in the production of bread wheat cultivars （Cham 8, Cham 6 particularly） amounted 90%. Recently, 15 races of yellow rust had been addressed in Syria for seasons 2010-2014; 159E256, 166E254, 166E256, 255 E112, 0 E0, 64 E 6, 230 El50, 0 E 18, 198 El30, 166 El50, 102 El60, 128 E0, 126 El50, 214E150, and 6E16. The race 6E16 was the most frequent during the two seasons, while the race 255El12 was the most virulent, followed by the race 230E222 and the race 0E0 was the weakest one. This study revealed the presence of fourteen newly observed races in Syria. Molecular Variance Analysis of Molecular Variance （AMOVA） of 55 yellow rust Puccinia striiformis f.sp tritici isolates examined by Amplify Fragment Length Polymorphism （AFLP） revealed high genetic variation within population, and the dimensional scale analysis （MSD） and tree diagram showed that the Syrian yellow rust isolates were clustered in three groups： the first group contained isolates derived from durum wheat, the second one contained bread wheat isolates, but the third was made of isolates derived from both durum and bread wheat species.展开更多
Soybean cyst nematode （SCN Heterodera glycines Ichinohe） is one of the most important nationwide soybean diseases in China. A total of 38 soil specimens or locations in the area was sampled and tested for SCN races ...Soybean cyst nematode （SCN Heterodera glycines Ichinohe） is one of the most important nationwide soybean diseases in China. A total of 38 soil specimens or locations in the area was sampled and tested for SCN races during 2001-2003 for the inspection of race distribution in Huang-Huai Valleys. A map of race distribution was constructed according to the data from both the present study and the published reports cited. Three areas, namely, the area of southeast to Jinan in Shangdong Province; the area of northern Henan Province and its border region to south of Hebei Province; and the area of Luohe, Zhoukou of Henan Province and Fuyang of Anhui Province mainly infested with Race 1 were identified. Race 4 was predominant in Shanxi Province, Beijing and the adjacent area of Henan, Shandong, and Anhui provinces, and the delta of Huanghe River in Shandong Province. Race 2 was mainly found in Liaocheng, Dezhou of Shangdong Province and Shijiazhuang of Hebei Province, and Jiaozuo and Huojia of Henan Province. Race 7 was distributed in the west part of Jiaodong Peninsula of Shandong Province and Kaifeng, Huaxian, Wenxian of Henan Province. Race 5 was found and scattered in Hebei and Henan Province. Race 9 was found in Shangqiu of Henan Province, which was reported for the first time in China. It can be seen that Race 1 and Race 4 were the two predominant races in Huang-Huai Valleys, and that research should focus on developing resistant cultivars of these races. There might exist other races in an area with some predominant races. The race substitution in the past decade was not obviously found, therefore, the results should be meaningful to future breeding for resistance to SCN in Huang-Huai Valleys.展开更多
A totatl of 116 isolates of rice blast fungus, Magnaporthe oryzae, were collected from 45 samples in different counties of Heilongjiang Province, and 20 Chinese physiological races belonging to seven groups were ident...A totatl of 116 isolates of rice blast fungus, Magnaporthe oryzae, were collected from 45 samples in different counties of Heilongjiang Province, and 20 Chinese physiological races belonging to seven groups were identified by using seven standard Chinese rice blast identifying varieties. Results showed that the dominant groups could be ranked as ZA, ZD, and ZB, with the occurrence frequencies of 47.41%, 22.41% and 15.52%, respectively. The race ZA49 was the dominant race with the occurrence frequency of 26.72%. The occurrence frequencies of the races ZD5 and ZD1 were 10.34% and 8.62%, respectively. The rising occurrence frequencies of these three dominant species were the most important reasons that causing Kongyu-131 more sensitive to rice blast. The results of virulence frequency indicated that the race harboring Pi-k, Pi-i, Pi-a gene were more susceptible to rice blast in Heilongjiang Province, and they should not be large-scale cultivated.展开更多
Objective: Increased number of runners in Japan has been one reason for increasing the risk of cardiac arrest during marathon races. The purpose of the study was to examine 1) the incidence of cardiac arrest during ma...Objective: Increased number of runners in Japan has been one reason for increasing the risk of cardiac arrest during marathon races. The purpose of the study was to examine 1) the incidence of cardiac arrest during marathon races held in the past in Japan, 2) the characteristics of runners with cardiac arrest, 3) the effectiveness of public access defibrillation (PAD) use for cardiac arrest cases. Methods: We examined the incidence of the cardiac arrest during marathon races in Japan from the medical records of marathon races that Kokushikan University provided in the past five years. Also, we analyzed cardiac arrests occurred in Japan in the past 15 years between 1999 and 2013. Results: The incidence rate of cardiac arrest was 2.18 per 100,000 participants. As shown in Table 1, the incidence rates were 2.00 per 100,000 participants in full marathon and 2.50 per 100,000 participants in half-marathon. A total of 63 cardiac arrests occurred in the past 15 years, and the number of incidents has been increasing every year. Among 63 cardiac arrest cases, the mean age was 45.3 ± 14.9 years old and 93.7% (59/63 cases) were in males. Eighty-three percentage of cardiac arrest cases applied AED (20/24 cases) were the shockable rhythm. In terms of the survival rate, there was a statistically significant difference between the cases where both bystander CPR and PAD were delivered and the cases where the only bystander CPR took place without PAD (95.0% vs. 47.1%;p Conclusions: Performing PAD on the scene during marathon races could be expected to be higher in the survival rate. Creating a medical support system is needed to handle sudden cardiac arrest rapidly in order to perform early bystander CPR and PAD.展开更多
Based on the constitution differences among races, the influence of the different constitutions on TCM therapies is approached, raising the differences of different races in tolerance and adaptability to acupuncture, ...Based on the constitution differences among races, the influence of the different constitutions on TCM therapies is approached, raising the differences of different races in tolerance and adaptability to acupuncture, and different treatment principles of acupuncture therapy for different races, and each one case of the black race, the white race and the yellow race recorded in practicing medicine in Britain is taken for discussion. It is expected to be beneficial to the researches on TCM constitutional theories of races and the clinical application.展开更多
In order to clear the composition and distribution of physiological races of Pyricularia oryae in Heilongjiang Province, 299 single spore isolates of P. oryae collected from five rice regions （30 cities, counties or ...In order to clear the composition and distribution of physiological races of Pyricularia oryae in Heilongjiang Province, 299 single spore isolates of P. oryae collected from five rice regions （30 cities, counties or farms） in Heilongiiang Province form 2007 to 2011 were identified by seven differential varieties in Chi- na, and a total of seven groups with 31 physiological races had been identified. The results showed that ZA, ZD and ZB groups were the dominant groups in Hei- longjiang Province, with the occurrence frequencies of 34.8%, 31.1% and 16.1%, respectively. ZD5 was the dominant race with the oeeurrence frequency of 17.1% ; followed by ZA49 and ZD1 , with the occurrence frequencies of 13.7% and 10.7% , respectively. The types and compositions of physiological races of P. oryae varied with rice regions.展开更多
Biochemical parameters are useful in the diagnosis of many health abnormalities in athletes. Some studies suggest training well and eating a balanced diet to improve performance. The modification of biochemical parame...Biochemical parameters are useful in the diagnosis of many health abnormalities in athletes. Some studies suggest training well and eating a balanced diet to improve performance. The modification of biochemical parameters during endurance races has not yet been studied in many African countries. Our objective was to evaluate the dietary profile and the effects of competition on the biochemical parameters of Congolese endurance athletes. The method used was the questionnaire for the food profile and blood samples were taken to measure the biochemical parameters of the athletes. A total of 64 athletes, i.e. 20 girls and 44 boys divided into two groups (group 1 or experimental group (EG), 32 endurance athletes and group 2 or control group (CG), 32 walkers who participated in a cross-sectional study in Brazzaville. The subjects were respectively 26.16 ± 2.79 years old for the EG and 27.44 ± 3.34 years old for the CG. The results indicated that quality foods were difficult to access. The main course was more consumed compared to the starter and dessert (60% of girls and 63.63 of boys). However, biochemical parameters showed a significantly lower serum creatinine concentration in EG subjects compared to CG subjects (0.86 ± 0.06 mg/dl vs 1.04 ± 0.16 mg/dl;t = ?5.95;p 0.05). Similarly, Total Cholesterol was significantly low (1.66 ± 0.34 g/l vs 2.09 ± 0.50 g/l;t = ?3.99;p < 0.000). Cholesterol concentrations of EG subjects (HDL-C) were significantly elevated (0.98 ± 0.49 g/l vs 0.48 ± 0.18 g/l;t = 5.34;p < 0.000). In conclusion, the biochemical data were normal but the food profile of the runners was unfavorable, inadequate and unbalanced. This is considered to be a performance limiting factor.展开更多
(1)Tony's gym class is 45 minutes long.Today,the students started with 6 minutes of warm-ups.Next,they ran races for 20 minutes.How many minutes of gym class are left now?
Background Natural killer （NK） cells play critical roles in host immune defense, while the quantities and subset distributions may vary among different races. To address the difference, we compared these variables a...Background Natural killer （NK） cells play critical roles in host immune defense, while the quantities and subset distributions may vary among different races. To address the difference, we compared these variables among Chinese Han, the Caucasians and the Blacks. The study may provide critical background information for both basic research and clinical investigation. Methods Blood samples collected from populations of different races were tested within 12 hours after collection and subsets of NK cells were characterized using flow cytometry. Results The absolute NK count in the Chinese Han was significantly higher than that in the Caucasian. The Han and Caucasian groups showed higher percentages of cytotoxic subset compared to that of the Black group. The percentage of cytokine-producing subset of Chinese Han group was lower than that of Caucasian and Black groups. Black group had a higher percentage of function-unknown NK subset than that of the Han and Caucasian groups. Conclusion Our data indicated that NK cell count and the distribution of different subsets varied among different races, which should be taken into consideration in related investigations.展开更多
Practice Makes Perfect.Dragon boat race participants prepare for an upcoming competition through night training in Diejiao Township of Foshan,south China’s Guangdong Province on May 14,2025.
There are many things in my life that can help me to be better.For example,I used to be weak because of my bad living habits,but now I am stronger and healthier.It was a terrible race that made me change.I fell down a...There are many things in my life that can help me to be better.For example,I used to be weak because of my bad living habits,but now I am stronger and healthier.It was a terrible race that made me change.I fell down and left behind by all students.This experience made me decide to change.展开更多
With a long-standing tradition in the development of critical theories, Latin America seeks, through a myriad of perspectives, to understand its peripheral position within the mechanisms of the world system. This pape...With a long-standing tradition in the development of critical theories, Latin America seeks, through a myriad of perspectives, to understand its peripheral position within the mechanisms of the world system. This paper aims to examine the role of race and gender in sustaining the capitalist world system through the lens of decolonial studies. It considers how both categories were historically constructed during the colonial process as tools to legitimize social, economic, and political hierarchies between the dominant and the dominated. In particular, the division of labor, based on racial and gendered distinctions, was instrumental in shaping these power relations. By analyzing these categories as central elements in the formation and maintenance of the capitalist world system, the study highlights their continued influence in perpetuating inequalities today.展开更多
BACKGROUND Septic shock,the most severe form of sepsis,remains a major global health challenge with high mortality.The coronavirus disease 2019(COVID-19)pandemic has exacerbated this burden,as severe acute respiratory...BACKGROUND Septic shock,the most severe form of sepsis,remains a major global health challenge with high mortality.The coronavirus disease 2019(COVID-19)pandemic has exacerbated this burden,as severe acute respiratory syndrome coronavirus 2 infection often leads to sepsis and septic shock.Racial and ethnic differences in critical illness outcomes are well-documented,but their impact on COVID-19 associated septic shock remains unclear.AIM To examine epidemiologic data to explore racial and ethnic differences in outcomes in COVID-19 associated septic shock.METHODS Using the National Inpatient Sample(2020–2021),we conducted a retrospective cohort study to assess racial and ethnic disparities in septic shock outcomes among adults(≥18 years)with concurrent COVID-19.Primary and secondary outcomes included in-hospital mortality,acute kidney injury(AKI),AKI requiring dialysis,and mechanical ventilation.Adjusted multivariable logistic regression accounted for demographics,comorbidities,hospital characteristics,and inhospital events.RESULTS Among 396795 weighted hospitalizations,Non-Hispanic Black(NHB)(25.3%)and Hispanic(30.4%)populations were younger and had greater comorbidity burdens than Non-Hispanic White(NHW)patients.Compared to NHW,adjusted analyses showed higher in-hospital mortality[adjusted odds ratio(aOR)=1.21,95%CI:1.15-1.27],mechanical ventilation use(aOR=1.19,95%CI:1.12-1.27)and AKI requiring dialysis(aOR=1.16,95%CI:1.07-1.25,P<0.001)among Hispanic patients.NHB patients had similar mortality to NHWs but had higher risk of mechanical ventilation(aOR=1.15,95%CI:1.09-1.22)and AKI requiring dialysis(aOR=1.65,95%CI:1.54-1.76).Mean length of stay and cost were longest and highest for Hispanic patients.CONCLUSION Our study showed that there was higher mortality in Hispanic patients,and higher renal and respiratory complication in both NHB and Hispanic groups compared to NHW group.Future research identifying the causes of the observed differences in complications are required to inform targeted strategies that may mitigate modifiable risk factors and optimize early detection of organ failure to optimize outcomes in this population.展开更多
基金supported by the National Natural Science Foundation of China(32072358 and 32272507)the National Key R&D Program of China(2021YFD1401000)+1 种基金the earmarked fund for CARS-03,the Natural Science Basic Research Project in Shaanxi Province of China(2020JZ-15)National“111 Project”of China(BP0719026)。
文摘Wheat stripe rust,caused by Puccinia striiformis f.sp.tritici(Pst),is one of the most destructive fungal diseases of wheat,and seriously threatens safe production of the crop worldwide.In China,new races historically appeared and rapidly developed to be predominant races and have resulted in ineffectiveness and replacement of wheat resistance cultivars as well as massive reduction in yield.In the present study,the relative parasitic fitness of the two newlyemerged Yr5-virulent races(TSA-6 and TSA-9)were compared with those of four currently predominant Chinese races(CYR31,CYR32,CYR33,and CYR34)based on evaluation on 10 Chinese wheat cultivars.As a result,there were significant differences in the relative parasitic fitness parameters among overall tested races based on multiple comparison(LSD)analysis(P<0.05).The principal component analysis(PCA)of overall parasitic fitness parameters indicated that the sporulation ability,infection and spore survivability,expansion capacity,and potential pathogenicity were the most important parasitic fitness attributes of the tested races.Based on the establishment of extracted three principal components and a comprehensive factor score mathematical models,evaluations of the parasitic fitness attributes of tested races showed that the level of relative parasitic fitness of the tested six races was:CYR32(1.15)>TSA-9(0.95)>TSA-6(0.92)>CYR34(0.29)>CYR31(–1.54)>CYR33(–1.77).The results indicated that two Yr5-virulent races TSA-9 and TSA-6 possessed relative parasitic fitness higher than races CYR34,CYR31,and CYR33,but lower than race CYR32,and have potential risks in developing to be predominant races.Therefore,continual monitoring of both Yr5-virulent races,and their variants is needed.The use of wheat cultivars(lines)with Yr5 resistance gene singly in wheat breeding is essential for being avoided,and is suggested to combine with other effective stripe rust resistance genes.
文摘There is little information about the bovine behavior and welfare during transportation and vaquejada race competitions. To test the hypothesis that the transport and racing of bovines produce chronic stress during these events, a study was performed to evaluate the behavior of bovines used for vaquejada races. Evaluations of cattle (n = 80) occurred on transportation (before, immediately, and 8 hours after transportation), and three days at Vaquejada Park (1 hour before, immediately, and 1 hour after the vaquejada race). Evaluators used a behavioral repertoire based on an ethogram for bovines and were previously trained. They used an observational and noninvasive method for one hour and applied a visual scanning method at transportation and for three days at the races. The results for pre-transport had greater idleness (102.9%), head/tail movements (57.4%), and agitation (49.8%). After transport, idleness (69.7%) was reduced, and agitation (79.5%) increased. Eight hours after this, sodomy/mounting/dominance (118.1%) was higher, followed by head/tail movements (92.8%), lying down (63.3%), and fatigue (53.3%). The results of vaquejada races revealed high feeding rates before and after races on the three evaluation days (53.6% - 30.0%), followed by rumination (72.0% - 44.5%). On all the evaluation days at the races, agitation was higher immediately after the races (87.9% - 66.1%). In conclusion, it was observed that the animals increased the frequency of behaviors indicative of acute stress immediately after transport and races but were able to recover the characteristic behavior a few hours after acute stress when transport and races followed the current official rules for both. Maintaining management standards for transport and vaquejada races, currently adopted, can reduce the impact on welfare and can be improved with regular scientific evaluations of the cattle involved to improve welfare through good practices.
基金Supported by the National Science and Technology Program of the Ministry of Science and Technology of China(2010BAD01B04)Research Fund of Department of Science and Technology of Sichuan Province(2008NG0003)the Genetic Engineering Fund of Department of Finance of Sichuan Province(2011JYGC06)~~
文摘Research progress was reviewed on the differential systems for physiologic races of Plasmodiophora brassicae Woron,including Williams,differential system and European clubroot differential（ECD） set.The existing problems and countermeasures of the different differential systems were discussed,and a research status quo on the molecular identification and detection of clubroot pathogen in crucifers were introduced.
文摘The rice( Oryza L. ) variety, Lijiangxintuanheigu(LTH), is a universally susceptible variety. A set of near-isogenic lines (NILs) of rice which has single resistance gene for each line was developed by use of LTH as recurrent parent and Kusabue,Tsuyuake, K1, PiNo. 4, K60 and BL1, which are from Kiyosawa's differential varieties(KDV), as donor parents. Differentiating ability of these NILs to Philippine isolates was compared with that of their donor parents, KDV and IRRI' s NILs. The results of comparative studies were as follows: (1) Differentiating ability of Chinese NILs to Philippine isolates was much stronger than that of their donor parents and that of KDV. (2) Chinese NILs had similar ability to differentiate races to IRRI's NILs or higher differentiating ability than them. But IRRI's NILs almost had no differentiating ability to isolates from japonica rice-growing regions. They can not be used to differentiate races of isolates from japonica ricegrowing regions. Whereas, Chinese NILs can be used to differentiate races of isolates from both japonica ricegrowing regions and indica rice-growing regions. It was concluded that the set of Chinese NILs can be used as international differentials.
基金partially supported by the Shanxi Provincial Science and Technology Planning Project,China (20120311019-3)the Shanxi Provincial Science and Technology Foundation Platform Construction Project,China (1105-0104)the Shanxi Provincial Graduate Education Innovation Project,China (2017BY065)
文摘In order to clarify the main pathogens of tomato Fusarium wilt in Shanxi Province, China, morphological identification, elongation factor 1 alpha （EF-1α） sequence analysis, specific primer amplification and pathogenicity tests were applied to study the isolates which were recovered from diseased plants collected from 17 different districts of Shanxi Province. The results were as follows： 1） Through morphological and molecular identification, the following 7 species of Fusarium were identified： F. oxysporum, F. solani, F. verticillioides, F. subglutinans, F. chlamydosporum, F. sporotrichioides, and F. semitectum; 2） 56 isolates of F. oxysporum were identified using specific primer amplification, among which, 29, 5 and 6 isolates were respectively identified as F. oxysporum f. sp. lycopersici physiological race 1, race 2, and race 3; 3） pathogenicity test indicated the significant pathogenicity of F. oxysporum, F. solani, F. verticillioides, and F. subglutinans to tomato plant. Therefore, among these 4 species confirmed as pathogenic to tomato in Shanxi, the highest isolation rate （53.3％） corresponded to F. oxysporum. Three physiological species, race 1, race 2, and race 3 of F. oxysporum f. sp. lycopersici are detected in Shanxi, among which race 1 is the most widespread pathogen and is also considered as the predominant race.
基金supported by the Ministry of Science and Technology of China (No. 2014DFA31540)Chinese Academy of Sciences (No. SAJC201305)the Bill & Melinda Gates Foundation to Cornell University for the Borlaug Global Rust Initiative (BGRI) Durable Rust Resistance in Wheat (DRRW) Project
文摘Ug99, also designated as TFKSK, is a race of Puccinia graminis Pers.：Pers f. sp. tn＇tici Eriks. and E. Henn （Pgt） with broad virulence to wheat. It is the first known Pgt race possessing virulence to Sr31, a stem rust resistance （Sr） gene deployed in wheat varieties world- wide （Singh et al., 2011 ）. Since the first detection of TFKSK in 1998, a total of 13 Ug99 variants have been identified in several African countries.
文摘Yellow Rust （stripe） rust （Puccinia striiformis West. f. sp. tritici） is one of the most epidemic diseases infect wheat in cold and wet regions. In 1988, this disease caused a loss of seasonal production amounted 70% on wheat variety Mexipak in Syria, and recurrent infection in 2010, caused by a virulent race called Yr27, caused a considerable loss in the production of bread wheat cultivars （Cham 8, Cham 6 particularly） amounted 90%. Recently, 15 races of yellow rust had been addressed in Syria for seasons 2010-2014; 159E256, 166E254, 166E256, 255 E112, 0 E0, 64 E 6, 230 El50, 0 E 18, 198 El30, 166 El50, 102 El60, 128 E0, 126 El50, 214E150, and 6E16. The race 6E16 was the most frequent during the two seasons, while the race 255El12 was the most virulent, followed by the race 230E222 and the race 0E0 was the weakest one. This study revealed the presence of fourteen newly observed races in Syria. Molecular Variance Analysis of Molecular Variance （AMOVA） of 55 yellow rust Puccinia striiformis f.sp tritici isolates examined by Amplify Fragment Length Polymorphism （AFLP） revealed high genetic variation within population, and the dimensional scale analysis （MSD） and tree diagram showed that the Syrian yellow rust isolates were clustered in three groups： the first group contained isolates derived from durum wheat, the second one contained bread wheat isolates, but the third was made of isolates derived from both durum and bread wheat species.
基金The project was supported by the National Natural Science Foundation of China （30490250）the National Key Basic Research Program （2002CB 111304, 2004CB7206）+1 种基金the National 863 Program （2002AA211052）the Program for Changjiang Scholars and Innovative Research Team in University （PCSIRT）.
文摘Soybean cyst nematode （SCN Heterodera glycines Ichinohe） is one of the most important nationwide soybean diseases in China. A total of 38 soil specimens or locations in the area was sampled and tested for SCN races during 2001-2003 for the inspection of race distribution in Huang-Huai Valleys. A map of race distribution was constructed according to the data from both the present study and the published reports cited. Three areas, namely, the area of southeast to Jinan in Shangdong Province; the area of northern Henan Province and its border region to south of Hebei Province; and the area of Luohe, Zhoukou of Henan Province and Fuyang of Anhui Province mainly infested with Race 1 were identified. Race 4 was predominant in Shanxi Province, Beijing and the adjacent area of Henan, Shandong, and Anhui provinces, and the delta of Huanghe River in Shandong Province. Race 2 was mainly found in Liaocheng, Dezhou of Shangdong Province and Shijiazhuang of Hebei Province, and Jiaozuo and Huojia of Henan Province. Race 7 was distributed in the west part of Jiaodong Peninsula of Shandong Province and Kaifeng, Huaxian, Wenxian of Henan Province. Race 5 was found and scattered in Hebei and Henan Province. Race 9 was found in Shangqiu of Henan Province, which was reported for the first time in China. It can be seen that Race 1 and Race 4 were the two predominant races in Huang-Huai Valleys, and that research should focus on developing resistant cultivars of these races. There might exist other races in an area with some predominant races. The race substitution in the past decade was not obviously found, therefore, the results should be meaningful to future breeding for resistance to SCN in Huang-Huai Valleys.
基金Supported by the Youth Science Funds of Heilongjiang Province (QC2010027)
文摘A totatl of 116 isolates of rice blast fungus, Magnaporthe oryzae, were collected from 45 samples in different counties of Heilongjiang Province, and 20 Chinese physiological races belonging to seven groups were identified by using seven standard Chinese rice blast identifying varieties. Results showed that the dominant groups could be ranked as ZA, ZD, and ZB, with the occurrence frequencies of 47.41%, 22.41% and 15.52%, respectively. The race ZA49 was the dominant race with the occurrence frequency of 26.72%. The occurrence frequencies of the races ZD5 and ZD1 were 10.34% and 8.62%, respectively. The rising occurrence frequencies of these three dominant species were the most important reasons that causing Kongyu-131 more sensitive to rice blast. The results of virulence frequency indicated that the race harboring Pi-k, Pi-i, Pi-a gene were more susceptible to rice blast in Heilongjiang Province, and they should not be large-scale cultivated.
文摘Objective: Increased number of runners in Japan has been one reason for increasing the risk of cardiac arrest during marathon races. The purpose of the study was to examine 1) the incidence of cardiac arrest during marathon races held in the past in Japan, 2) the characteristics of runners with cardiac arrest, 3) the effectiveness of public access defibrillation (PAD) use for cardiac arrest cases. Methods: We examined the incidence of the cardiac arrest during marathon races in Japan from the medical records of marathon races that Kokushikan University provided in the past five years. Also, we analyzed cardiac arrests occurred in Japan in the past 15 years between 1999 and 2013. Results: The incidence rate of cardiac arrest was 2.18 per 100,000 participants. As shown in Table 1, the incidence rates were 2.00 per 100,000 participants in full marathon and 2.50 per 100,000 participants in half-marathon. A total of 63 cardiac arrests occurred in the past 15 years, and the number of incidents has been increasing every year. Among 63 cardiac arrest cases, the mean age was 45.3 ± 14.9 years old and 93.7% (59/63 cases) were in males. Eighty-three percentage of cardiac arrest cases applied AED (20/24 cases) were the shockable rhythm. In terms of the survival rate, there was a statistically significant difference between the cases where both bystander CPR and PAD were delivered and the cases where the only bystander CPR took place without PAD (95.0% vs. 47.1%;p Conclusions: Performing PAD on the scene during marathon races could be expected to be higher in the survival rate. Creating a medical support system is needed to handle sudden cardiac arrest rapidly in order to perform early bystander CPR and PAD.
文摘Based on the constitution differences among races, the influence of the different constitutions on TCM therapies is approached, raising the differences of different races in tolerance and adaptability to acupuncture, and different treatment principles of acupuncture therapy for different races, and each one case of the black race, the white race and the yellow race recorded in practicing medicine in Britain is taken for discussion. It is expected to be beneficial to the researches on TCM constitutional theories of races and the clinical application.
基金Supported by "Eleventh Five-Year" National Science and Technology Suppor Program(2007BAD65B022012BAD04B01)
文摘In order to clear the composition and distribution of physiological races of Pyricularia oryae in Heilongjiang Province, 299 single spore isolates of P. oryae collected from five rice regions （30 cities, counties or farms） in Heilongiiang Province form 2007 to 2011 were identified by seven differential varieties in Chi- na, and a total of seven groups with 31 physiological races had been identified. The results showed that ZA, ZD and ZB groups were the dominant groups in Hei- longjiang Province, with the occurrence frequencies of 34.8%, 31.1% and 16.1%, respectively. ZD5 was the dominant race with the oeeurrence frequency of 17.1% ; followed by ZA49 and ZD1 , with the occurrence frequencies of 13.7% and 10.7% , respectively. The types and compositions of physiological races of P. oryae varied with rice regions.
文摘Biochemical parameters are useful in the diagnosis of many health abnormalities in athletes. Some studies suggest training well and eating a balanced diet to improve performance. The modification of biochemical parameters during endurance races has not yet been studied in many African countries. Our objective was to evaluate the dietary profile and the effects of competition on the biochemical parameters of Congolese endurance athletes. The method used was the questionnaire for the food profile and blood samples were taken to measure the biochemical parameters of the athletes. A total of 64 athletes, i.e. 20 girls and 44 boys divided into two groups (group 1 or experimental group (EG), 32 endurance athletes and group 2 or control group (CG), 32 walkers who participated in a cross-sectional study in Brazzaville. The subjects were respectively 26.16 ± 2.79 years old for the EG and 27.44 ± 3.34 years old for the CG. The results indicated that quality foods were difficult to access. The main course was more consumed compared to the starter and dessert (60% of girls and 63.63 of boys). However, biochemical parameters showed a significantly lower serum creatinine concentration in EG subjects compared to CG subjects (0.86 ± 0.06 mg/dl vs 1.04 ± 0.16 mg/dl;t = ?5.95;p 0.05). Similarly, Total Cholesterol was significantly low (1.66 ± 0.34 g/l vs 2.09 ± 0.50 g/l;t = ?3.99;p < 0.000). Cholesterol concentrations of EG subjects (HDL-C) were significantly elevated (0.98 ± 0.49 g/l vs 0.48 ± 0.18 g/l;t = 5.34;p < 0.000). In conclusion, the biochemical data were normal but the food profile of the runners was unfavorable, inadequate and unbalanced. This is considered to be a performance limiting factor.
文摘(1)Tony's gym class is 45 minutes long.Today,the students started with 6 minutes of warm-ups.Next,they ran races for 20 minutes.How many minutes of gym class are left now?
文摘Background Natural killer （NK） cells play critical roles in host immune defense, while the quantities and subset distributions may vary among different races. To address the difference, we compared these variables among Chinese Han, the Caucasians and the Blacks. The study may provide critical background information for both basic research and clinical investigation. Methods Blood samples collected from populations of different races were tested within 12 hours after collection and subsets of NK cells were characterized using flow cytometry. Results The absolute NK count in the Chinese Han was significantly higher than that in the Caucasian. The Han and Caucasian groups showed higher percentages of cytotoxic subset compared to that of the Black group. The percentage of cytokine-producing subset of Chinese Han group was lower than that of Caucasian and Black groups. Black group had a higher percentage of function-unknown NK subset than that of the Han and Caucasian groups. Conclusion Our data indicated that NK cell count and the distribution of different subsets varied among different races, which should be taken into consideration in related investigations.
文摘Practice Makes Perfect.Dragon boat race participants prepare for an upcoming competition through night training in Diejiao Township of Foshan,south China’s Guangdong Province on May 14,2025.
文摘There are many things in my life that can help me to be better.For example,I used to be weak because of my bad living habits,but now I am stronger and healthier.It was a terrible race that made me change.I fell down and left behind by all students.This experience made me decide to change.
文摘With a long-standing tradition in the development of critical theories, Latin America seeks, through a myriad of perspectives, to understand its peripheral position within the mechanisms of the world system. This paper aims to examine the role of race and gender in sustaining the capitalist world system through the lens of decolonial studies. It considers how both categories were historically constructed during the colonial process as tools to legitimize social, economic, and political hierarchies between the dominant and the dominated. In particular, the division of labor, based on racial and gendered distinctions, was instrumental in shaping these power relations. By analyzing these categories as central elements in the formation and maintenance of the capitalist world system, the study highlights their continued influence in perpetuating inequalities today.
文摘BACKGROUND Septic shock,the most severe form of sepsis,remains a major global health challenge with high mortality.The coronavirus disease 2019(COVID-19)pandemic has exacerbated this burden,as severe acute respiratory syndrome coronavirus 2 infection often leads to sepsis and septic shock.Racial and ethnic differences in critical illness outcomes are well-documented,but their impact on COVID-19 associated septic shock remains unclear.AIM To examine epidemiologic data to explore racial and ethnic differences in outcomes in COVID-19 associated septic shock.METHODS Using the National Inpatient Sample(2020–2021),we conducted a retrospective cohort study to assess racial and ethnic disparities in septic shock outcomes among adults(≥18 years)with concurrent COVID-19.Primary and secondary outcomes included in-hospital mortality,acute kidney injury(AKI),AKI requiring dialysis,and mechanical ventilation.Adjusted multivariable logistic regression accounted for demographics,comorbidities,hospital characteristics,and inhospital events.RESULTS Among 396795 weighted hospitalizations,Non-Hispanic Black(NHB)(25.3%)and Hispanic(30.4%)populations were younger and had greater comorbidity burdens than Non-Hispanic White(NHW)patients.Compared to NHW,adjusted analyses showed higher in-hospital mortality[adjusted odds ratio(aOR)=1.21,95%CI:1.15-1.27],mechanical ventilation use(aOR=1.19,95%CI:1.12-1.27)and AKI requiring dialysis(aOR=1.16,95%CI:1.07-1.25,P<0.001)among Hispanic patients.NHB patients had similar mortality to NHWs but had higher risk of mechanical ventilation(aOR=1.15,95%CI:1.09-1.22)and AKI requiring dialysis(aOR=1.65,95%CI:1.54-1.76).Mean length of stay and cost were longest and highest for Hispanic patients.CONCLUSION Our study showed that there was higher mortality in Hispanic patients,and higher renal and respiratory complication in both NHB and Hispanic groups compared to NHW group.Future research identifying the causes of the observed differences in complications are required to inform targeted strategies that may mitigate modifiable risk factors and optimize early detection of organ failure to optimize outcomes in this population.
