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Pro/E Wild Fire中零件库的建立方法 被引量:5
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作者 石晶 焦洪宇 张涛 《机械设计与制造》 北大核心 2005年第5期137-138,共2页
以Pro/E Wild Fire软件为基础,详细地论述了零件库的建立方法,分析了每种方法的优缺点,提出了适用范围,使零件库的建立更加简单化,从而有效的提高了实体建模速度,缩短了设计周期。
关键词 PRO/ENGINEER wild fire 族表 自定义特征 编程
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Critical re-assessment of species diversity of marketed wild edible mushroom‘dahongjun’
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作者 ZHANG Pei LI Yuwu +5 位作者 CAO Shuqin WANG Jing SU Kaimei LI Shuhong BUYCK Bart WANG Xianghua 《菌物学报》 北大核心 2026年第2期10-31,共22页
The informal term‘dahongjun’or‘big red mushroom’is a group of red-coloured russulas widely collected and consumed in southern China,originally mistakenly recognized as the European Russula vinosa.Russula griseocar... The informal term‘dahongjun’or‘big red mushroom’is a group of red-coloured russulas widely collected and consumed in southern China,originally mistakenly recognized as the European Russula vinosa.Russula griseocarnosa was described from China in 2009,and since then,it has become the only available scientific name for‘dahongjun’.Nevertheless,several lineages exist within this complex,and whether these lineages represent real species is still an open question.Sampling in major producing areas of‘dahongjun’and phylogenetic species recognition using multi-locus data were conducted.Besides R.griseocarnosa nine additional species were identified under the commercial name‘dahongjun’,including R.dhakuriana,R.quercina,R.purpureozonata,R.yanheensis and a new species sister to R.griseocarnosa here described as R.occulta.The others were undescribed species close to R.laricina,R.lepida,and R.purpureozonata respectively.Six evolutionary lineages within R.griseocarnosa were defined by genealogical concordance phylogenetic species recognition based on five-locus DNA data.Conflicts among different genealogies suggested that R.griseocarnosa is best considered as a single phylogenetic species,comprising several infraspecific taxa.Lower coverage whole genome sequencing of R.griseocarnosa holotype discovered that its three individuals belong to three different clades.Lectotypification was made using one of the three individuals.A new variety R.griseocarnosa var.ailaoshanensis is described to name one of the terminal clades that is mainly distributed in Ailao Mountains.This variety differs morphologically from the type variety in its nearly white context,bigger spores and more inflated hyphae in the pileipellis.The morphological and molecular data provided in this study are helpful to identify wild edible mushrooms of Russula subgen.Russula. 展开更多
关键词 China LECTOTYPE new species phylogenetic species recognition RUSSULA wild edible fungi
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Harness the wild:progress and perspectives in wheat genetic improvement
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作者 Xiubin Tian Ziyu Wang +1 位作者 Wenxuan Liu Yusheng Zhao 《Journal of Genetics and Genomics》 2026年第1期1-15,共15页
Bread wheat(Triticum aestivum L.)is a staple hexaploid crop with numerous wild relatives.However,domestication and modern breeding have significantly narrowed its genetic diversity,diminishing its capacity to adapt to... Bread wheat(Triticum aestivum L.)is a staple hexaploid crop with numerous wild relatives.However,domestication and modern breeding have significantly narrowed its genetic diversity,diminishing its capacity to adapt to climate change.Wild relatives of wheat serve as a vital reservoir of genetic diversity,offering traits thatenhance its resistance to various biotic and abiotic stresses.Over recent decades,remarkable progress has been made in utilizing superior genes from wild relatives to bolster wheat's defenses against diseases and pests,though the exploration of genes conferring abiotic stress tolerance has lagged behind.In this review,we summarize key advancements in the utilization of wild relatives for wheat enhancement over the past century,emphasizing both theoretical and technological innovations.Furthermore,we evaluate the potential contributions of wild relatives to address production challenges posed by climate change.We also explore strategies for isolating superior genes and developing prebreeding germplasm to support the future development of climate-resilient wheat varieties. 展开更多
关键词 Bread wheat wild relatives Biotic stress Abiotic stress Genetic improvement Climate change
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Analysis of Cross-compatibility among Wild Species of Paeonia subsect.Delavayanae and with Cultivated Varieties
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作者 Xiaohui WANG Hanle JI +3 位作者 Hongfan LIU Yazhen GUO Jingjing PANG Erqiang WANG 《Asian Agricultural Research》 2026年第1期39-45,共7页
[Objectives]To provide a reference for the efficient use of wild Paeonia suffruticosa germplasm resources and the scientific selection of parents.[Methods]This study systematically evaluated cross-compatibility by con... [Objectives]To provide a reference for the efficient use of wild Paeonia suffruticosa germplasm resources and the scientific selection of parents.[Methods]This study systematically evaluated cross-compatibility by conducting interspecific crosses among the major wild species subsect.Delavayanae(Paeonia delavayi,Paeonia lutea,Paeonia potaninii,and Paeonia ludlowii)as well as reciprocal crosses between these species and cultivated varieties from the subsect.Vaginatae.[Results]Crosses among P.delavayi,P.lutea,and P.potaninii generally exhibited good seed set,with the resulting seeds showing a high emergence rate.In contrast,crosses involving P.ludlowii as a parent produced only a limited number of seeds,none of which germinated.In crosses with cultivated varieties where the wild species served as the maternal parent,the average seed set ranked as follows:P.lutea>P.delavayi>P.ludlowii>P.potaninii.When wild species were used as paternal parent,the average seed set ranked as follows:P.potaninii>P.lutea>P.delavayi>P.ludlowii.On the whole,most crosses between wild species of subsect.Delavayanae and cultivated varieties achieved normal seed set,demonstrating a certain degree of cross-compatibility.However,when the wild species served as the maternal parent,both the seed set and seedling emergence rate were superior to those in the reciprocal crosses(with wild species as the paternal parent).[Conclusions]Significant differences in cross-compatibility were observed among species within Paeonia subsect.Delavayanae.In addition,a significant maternal effect was identified in crosses between wild species of this subsection and cultivated varieties.These findings suggest that by selecting highly compatible combinations,there remains considerable potential for utilizing these wild species in peony breeding. 展开更多
关键词 Paeonia suffruticosa Paeonia subsect. Delavayanae wild species CROSS-COMPATIBILITY Seed set Seedling emergence rate
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Lightning in a Forest (Wild) Fire: Mechanism at the Molecular Level
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作者 See Leang Chin Xueliang Guo +4 位作者 Harmut Schroeder Huanbin Xu Tie-Jun Wang Ruxin Li Weiwei Liu 《Atmospheric and Climate Sciences》 2024年第1期128-135,共8页
The mechanism of lightning that ignites a forest fire and the lightning that occurs above a forest fire are explained at the molecular level. It is based on two phenomena, namely, internal charge separation inside the... The mechanism of lightning that ignites a forest fire and the lightning that occurs above a forest fire are explained at the molecular level. It is based on two phenomena, namely, internal charge separation inside the atmospheric cloud particles and the existence of a layer of positively charged hydrogen atoms sticking out of the surface of the liquid layer of water on the surface of rimers. Strong turbulence-driven collisions of the ice particles and water droplets with the rimers give rise to breakups of the ice particles and water droplets into positively and negatively charged fragments leading to charge separation. Hot weather in a forest contributes to the updraft of hot and humid air, which follows the same physical/chemical processes of normal lightning proposed and explained recently[1]. Lightning would have a high probability of lighting up and burning the dry biological materials in the ground of the forest, leading to a forest (wild) fire. The burning of trees and other plants would release a lot of heat and moisture together with a lot of smoke particles (aerosols) becoming a strong updraft. The condition for creating lightning is again satisfied which would result in further lightning high above the forest wild fire. 展开更多
关键词 Forest wild fire LIGHTNING Molecular Level
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The challenge of applying governance and sustainable development to wildland fire management in Southern Europe 被引量:1
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作者 Susana Aguilar Cristina Montiel 《Journal of Forestry Research》 SCIE CAS CSCD 2011年第4期627-639,共13页
This paper discusses participatory processes in wildland fire management (WFM). Participation is an essential element of both the European Sustainable Development (SD) Strategy and the White Paper on Governance. G... This paper discusses participatory processes in wildland fire management (WFM). Participation is an essential element of both the European Sustainable Development (SD) Strategy and the White Paper on Governance. Governance end SD have thus become an interconnected challenge to be applied to WFM (as a sub-area in forest policy), amongst other policies. An overspread weakness in WFM is lack of real participation of stakeholders. Absence of (or deficient) participation can seriously impair contribution of this group to WFM in high-risk areas and runs counter governance and the SDS. Further, this weakness might prevent an efficient use of fire as a land management tool (prescribed burning, PB) and as a technique for fighting wildfire (suppression fire, SF). Even though these fire practices have been well known in many different places, they have been increasingly neglected or Prohibited over time in Southern Europe. At present, forest and fire fighting administrations are turning their eyes back on them and analyzing the benefits of using fire in relation to preventive and suppressive actions. Therefore, participatory and diffusion mechanisms (the latter adopting the shape of national and international experts' networks) are required in order to solve the so- called fire paradox: that is, the need to move from a one-dimensinnal perception of the negative impacts of fire to a more sophisticated one that also stresses its positive effects. Governance, based on broad social participation, and diffusion, through fire networks, are of utmost importance in order, first, to diminish long-standing suspicion amongst different interests as to the use of fire and, secondly, to diffuse best practices associated with PB and SF. Most importantly, the ELI should exercise its environmental leadership so that these new fire practices and sustainable WFM are diffused across the international arena. 展开更多
关键词 GOVERNANCE sustainable development forestry policy wild-fire management social participation
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Retrospective analysis of two northern California wild-land fires via Landsat five satellite imagery and Normalized Difference Vegetation Index (NDVI) 被引量:1
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作者 Bennett Sall Michael W. Jenkins James Pushnik 《Open Journal of Ecology》 2013年第4期311-323,共13页
Wild-land fires are a dynamic and destructive force in natural ecosystems. In recent decades, fire disturbances have increased concerns and awareness over significant economic loss and landscape change. The focus of t... Wild-land fires are a dynamic and destructive force in natural ecosystems. In recent decades, fire disturbances have increased concerns and awareness over significant economic loss and landscape change. The focus of this research was to study two northern California wild-land fires: Butte Humboldt Complex and Butte Lightning Complex of 2008 and assessment of vegetation recovery after the fires via ground based measurements and utilization of Landsat 5 imagery and analysis software to assess landscape change. Multi-temporal and burn severity dynamics and assessment through satellite imagery were used to visually ascertain levels of landscape change, under two temporal scales. Visual interpretation indicated noticeable levels of landscape change and relevant insight into the magnitude and impact of both wild-land fires. Normalized Burn Ratio (NBR) and delta NBR (DNBR) data allowed for quantitative analysis of burn severity levels. DNBR results indicate low severity and low re-growth for Butte Humboldt Complex “burned center” subplots. In contrast, DNBR values for Butte Lightning Complex “burned center” subplots indicated low-moderate burn severity levels. 展开更多
关键词 wild-Land fire BURN Severity Vegetation Recovery Normalized Difference VEGETATIVE Index (NDVI) Normalized BURN Ratio (NBR)
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Wildfire Occurrence: Integrated Model for Risk Analysis and Operative Suppression Aspects Management
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作者 Laura Bonora Claudio Claudio Conese +2 位作者 Enrico Marchi Enrico Tesi Niccolò Brachetti Montorselli 《American Journal of Plant Sciences》 2013年第3期705-710,共6页
Generally forest fires are related to human activities and need an effective fire prevention and suppression organization, based on a deep knowledge of the territory, fire behaviour and suppression system resources ne... Generally forest fires are related to human activities and need an effective fire prevention and suppression organization, based on a deep knowledge of the territory, fire behaviour and suppression system resources network. To organise monitoring, prevention and fire fighting operations, the knowledge of the risk level for different areas is important. To evaluate the probability that a forest fire occurs and to organise prevention and management of fire fighting activities, both simple and easy-to-use risk and operational difficulty indices were implemented. CNR-IBIMET and DISTAF Dept., on commitment of Tuscany Region, developed a multistep process for the evaluation of the risk, that can be used to assess land planning and to organise seasonal fire fighting resources. This model is called Final Risk Index (FRI);it is the result of the combination of the following two indices, which are initially developed separately. The concerned indices are the Global Risk Index (GRI), and Operational Difficulty Index in Fire Fighting (ODIF). The fire risk index processes different parameters to generate two hazards: static and dynamic, merged to obtain the Global Risk Index (GRI). It is very helpful to estimate the probability of forest fire occurrence, but it does not provide information on forest fire extinction difficulties. The operational difficulty index in fire fighting (ODIF) resumes all the factors affecting fire fighting activity by air and by ground and suggests the extinction efficiency of forest fires in a given area. Thus FRI improves aspects of the fire prevention planning, focused to the needs of a public operative structure. The objective was modelling the links between the main components in ignition and fire fighting actions to produce an easy to use tool to face the emergences, also foreseeing forest fires regime changes in the coming decades. 展开更多
关键词 wild-Land fire Ignition RISK Infrastructural RISK METEOROLOGICAL RISK
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Characterization of novel highly pathogenic avian influenza A(H5N6)clade 2.3.4.4b virus in wild birds,East China,2024 被引量:1
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作者 Renjie Sun Xiaoxiao Feng +9 位作者 Jing Huang Fangyu Zheng Ronghui Xie Chuanliang Zhang Hongli Zhang Yin Xue Aijun Liu Xiaobing Huang Lin Yuan Lingyan Zhao 《Virologica Sinica》 2025年第2期284-287,共4页
Dear Editor,The highly pathogenic avian influenza viruses(HPAIVs)are important epizootic and zoonotic pathogens that cause significant economic losses to the poultry industry and pose a serious risk to veterinary and ... Dear Editor,The highly pathogenic avian influenza viruses(HPAIVs)are important epizootic and zoonotic pathogens that cause significant economic losses to the poultry industry and pose a serious risk to veterinary and public health.Wild birds have been recognized as the primary reservoirs for influenza A virus,and some species show little sign of clinical disease or even can be asymptomatic during long distance carriers of the virus(Lycett et al.,2019).Since it was first discovered in 1959,the H5Nx HPAIVs have spread globally and cause outbreaks in wild birds,poultry and sporadic human and other mammalian infections(Lycett et al.,2019).Due to the reassortant events of diverse strains facilitated by migratory waterfowl,the clade 2.3.4.4 of H5Nx viruses acquiring neuraminidase(NA)gene from other low pathogenicity avian influenza viruses(LPAIVs)emerged in 2014 and gradually became the dominant sub-clade(Lee et al.,2017). 展开更多
关键词 wild birds highly pathogenic avian influenza East China EPIZOOTIC highly pathogenic avian influenza viruses hpaivs avian influenza H N ZOONOTIC h nx hpaivs
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Trichoderma-mediated growth promotion and productivity enhancement of wild bitter gourd (Momordica charantia L. var. abbreviata Ser.)
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作者 Katrina Rossibel Gutierrez Macandile Jeanmarlin Pascua Oraña +2 位作者 Francis Adriano Aguilar Rodelina Cunanan Deyto Charina Gracia Bawagan Banaay 《Life Research》 2025年第4期54-69,共16页
Background:Momordica charantia L.var.abbreviata Ser.(MCA),locally known as“ampalayang ligaw”,is a wild variety of Momordica charantia L.,and a valuable medicinal plant possessing hypoglycemic activity.However,it onl... Background:Momordica charantia L.var.abbreviata Ser.(MCA),locally known as“ampalayang ligaw”,is a wild variety of Momordica charantia L.,and a valuable medicinal plant possessing hypoglycemic activity.However,it only grows in open fields and is not widely cultivated due to slow growth and low productivity.Methods:To enhance its overall plant health,a consortium of three Trichoderma spp.was inoculated into MCA.The effects on growth,floral biology,productivity,and total triterpenes were assessed to determine the efficacy of Trichoderma spp.as a sustainable and environment-friendly plant growth promoter.A consortium of three Trichoderma spp.(T.ghanense,T.pseudokoningii,and T.harzianum)mixed in equal proportions were applied as seed coat and soil drench according to previous recommendations.Results:Results show that Trichoderma-treated MCA exhibited significantly(P<0.05)greater leaf area and growth rate compared to the untreated control.Trichoderma likewise affected the floral biology of MCA with bigger flower sizes(P<0.01),earlier male flower emergence,and increased number of female flowers(P<0.05).Regarding productivity,Trichoderma significantly increased the fruit set,dry weight and length of fruits(P<0.01),number of fruits per plant,and seed germination percentage(P<0.05).An increase in shoot length was significantly correlated to a greater number of fruits hence with higher productivity.Trichoderma also significantly enhanced(22%increase)the total triterpenes in MCA leaves,probably owing to hormonal modulation of gene expression changes as previous studies have shown.The increased triterpene content suggests an enhanced pharmacological potential of Trichoderma-treated MCA for diabetes management,warranting further bioactivity studies.Conclusion:Therefore,these results reveal the efficacy of Trichoderma on MCA productivity enhancement,demonstrating the potential of Trichoderma-treated MCA to become more amenable to commercial cultivation. 展开更多
关键词 TRICHODERMA plant-growth-promotion wild bitter gourd floral biology TRITERPENES
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Identification and genetic analysis of new ephemeroviruses in wild boars in China
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作者 Zhongzhong Tu Tong Wang +4 位作者 Yu Xu Heting Sun Peng Peng Siyuan Qin Changchun Tu 《Virologica Sinica》 2025年第2期186-191,共6页
Ephemeroviruses(EVs)are arthropod-borne rhabdoviruses and were isolated exclusively from cattle and haematophagous arthropods until two new ephemeroviruses were first identified from domestic pigs most recently.Here w... Ephemeroviruses(EVs)are arthropod-borne rhabdoviruses and were isolated exclusively from cattle and haematophagous arthropods until two new ephemeroviruses were first identified from domestic pigs most recently.Here we report the identification of newer EVs in wild boar by meta-transcriptomic(MTT)sequencing.Further screening by specific RT-nPCR of tissue samples of 459 free-ranging wild boars collected between 2018 and 2023 from 26 provinces across China confirmed five positive wild boars in four provinces.Interestingly,two ticks especially collected from two positive wild boars were also EV positive.Finally,four complete genome sequences of wild boar ephemeroviruses(WbEVs)were obtained with two strains belonging to a new EV species,and the rest two falling into porcine ephemerovirus 2(PoEV2)species identified from domestic pigs.Our study has further extended EV host range and demonstrated natural circulations of divergent EVs in wild boars,in which ticks may play roles.Biological implications of EV infection in wild boars should be interesting topics for future investigations. 展开更多
关键词 wild boar Ephemerovirus(EVs) TICK China Genetic diversity
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Distinguishing between wild-caught and captive-bred Common Pheasantusing methylation rate of skeletal muscle DNA
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作者 Wenhui Wang Lijun Lin +15 位作者 Yue Ma Yan Cui Qi Zhang Jincheng Yang Yongheng Zhou Liangyu Cui Boyang Liu Chang Su Mengjia Yu Yuwei Gao Peng Gao Yujia Du Yu Zhou Elizabeth Kamili Shuhui Yang Yanchun Xu 《Avian Research》 2025年第2期264-274,共11页
Illegal hunting and trafficking of wildlife and their derivatives extort unprecedented population decline of relatively many species pushing them towards extinction.Notwithstanding contemporary counteracting intervent... Illegal hunting and trafficking of wildlife and their derivatives extort unprecedented population decline of relatively many species pushing them towards extinction.Notwithstanding contemporary counteracting interventions at international,regional,national and local levels,wildlife farming is advocated as an alternative approach to minimize pressure on wild populations.For wildlife farming to be an effective conservation tool,the integration of wildlife forensics is inevitable to allow distinction between captive-bred and wild-caught species.To this end,we analyzed methylation rates of skeletal muscle samples(pectoralis major,triceps brachii,gastrocnemius,biceps femoris,and neck muscles)from 60 captive-bred and 30 wild-caught Common Pheasant.A total of 13,507 differentially methylated regions were identified between five wild-caught and five captive-bred individuals through whole-genome methylation sequencing(WGBS).Based on the selected five methylation sites,LOC116231076,LOC116242223,ATAD2B,EGFL6,and HS2ST,quantitative detection technique was developed using methylation-sensitive high-resolution melting curve(MS-HRM)to measure methylation rates.The results showed significant differences in methylation rates at all differential sites between wild-caught and captive-bred individuals(|t|=0.67–33.10,P=0.000–0.042).The discrimination accuracy rate of each locus was highest in the gastrocnemius muscle and lowest in the neck muscle.The discrimination accuracy rate on LOC116231076,LOC116242223,ATAD2B,EGFL6,and HS2ST methylation sites for gastrocnemius muscle was 64.98%,100.00%,68.54%,63.79%,and 63.70%,respectively;and for neck muscle it was 67.42%,68.06%,83.61%,65.04%,and68.85%,respectively.The united discrimination accuracy rate of the five loci were 100.00%for gastrocnemius muscle,99.78%for biceps femoris muscle,97.52%for pectoralis major muscle,93.96%for triceps brachii muscle,and 91.63%for neck muscle,respectively.The panel also revealed excellent repeatability,reproducibility,sensitivity and universality to mammals and avian species.This study establishes an effective,accurate and low-cost identification technology for the identification of wild and farmed Common Pheasant,and also provides a reference for the development of identification methods for other species. 展开更多
关键词 CAPTIVE Common Pheasant DNA methylation Methylation-sensitive high-resolution melting curve Source identification wild
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Accelerating Wild Rice Disease-Resistant Germplasm Exploration:Artificial Intelligence(AI)-Powered Wild Rice Blast Disease Level Evaluation and Disease-Resistance Identification
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作者 PAN Pan GUO Wenlong +10 位作者 LI Hengbo SHAO Yifan GUO Zhihao JIN Ye CHENG Yanrong YU Guoping FU Zhenshi HU Lin ZHENG Xiaoming ZHOU Guomin ZHANG Jianhua 《Rice science》 2025年第5期727-746,共20页
Accurate evaluation of disease levels in wild rice germplasm and identification of disease resistance are critical for developing rice varieties resistant to blast disease.However,existing evaluation methods face limi... Accurate evaluation of disease levels in wild rice germplasm and identification of disease resistance are critical for developing rice varieties resistant to blast disease.However,existing evaluation methods face limitations that hinder progress in breeding.To address these challenges,we proposed an AI-powered method for evaluating blast disease levels and identifying resistance in wild rice.A lightweight segmentation model for diseased leaves and lesions was developed,incorporating an improved federated learning approach to enhance robustness and adaptability.Based on the segmentation results and resistance identification technical specifications,wild rice materials were evaluated into 10 disease levels(L0 to L9),further enabling disease-resistance identification through multiple replicates of the same materials.The method was successfully implemented on augmented reality glasses for real-time,first-person evaluation.Additionally,high-speed scanners and edge computing devices were integrated to enable continuous,precise,and dynamic evaluation.Experimental results demonstrate the outstanding performance of the proposed method,achieving effective segmentation of diseased leaves and lesions with only 0.22 M parameters and 5.3 G floating-point operations per second(FLOPs),with a mean average precision(mAP@0.5)of 96.3%.The accuracy of disease level evaluation and disease-resistance identification reached 99.7%,with a practical test accuracy of 99.0%,successfully identifying three highly resistant wild rice materials.This method provides strong technical support for efficiently identifying wild rice materials resistant to blast disease and advancing resistance breeding efforts. 展开更多
关键词 wild rice germplasm resource rice blast crop disease level evaluation disease-resistance identification
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MSFResNet:A ResNeXt50 model based on multi-scale feature fusion for wild mushroom identification
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作者 YANG Yang JU Tao +1 位作者 YANG Wenjie ZHAO Yuyang 《Journal of Measurement Science and Instrumentation》 2025年第1期66-74,共9页
To solve the problems of redundant feature information,the insignificant difference in feature representation,and low recognition accuracy of the fine-grained image,based on the ResNeXt50 model,an MSFResNet network mo... To solve the problems of redundant feature information,the insignificant difference in feature representation,and low recognition accuracy of the fine-grained image,based on the ResNeXt50 model,an MSFResNet network model is proposed by fusing multi-scale feature information.Firstly,a multi-scale feature extraction module is designed to obtain multi-scale information on feature images by using different scales of convolution kernels.Meanwhile,the channel attention mechanism is used to increase the global information acquisition of the network.Secondly,the feature images processed by the multi-scale feature extraction module are fused with the deep feature images through short links to guide the full learning of the network,thus reducing the loss of texture details of the deep network feature images,and improving network generalization ability and recognition accuracy.Finally,the validity of the MSFResNet model is verified using public datasets and applied to wild mushroom identification.Experimental results show that compared with ResNeXt50 network model,the accuracy of the MSFResNet model is improved by 6.01%on the FGVC-Aircraft common dataset.It achieves 99.13%classification accuracy on the wild mushroom dataset,which is 0.47%higher than ResNeXt50.Furthermore,the experimental results of the thermal map show that the MSFResNet model significantly reduces the interference of background information,making the network focus on the location of the main body of wild mushroom,which can effectively improve the accuracy of wild mushroom identification. 展开更多
关键词 multi-scale feature fusion attention mechanism ResNeXt50 wild mushroom identification deep learning
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Economic Potential and Value Chain of Wild Edible Mushrooms and Cultivated Mushrooms from the Virunga National Park and Surrounding Area in the Democratic Republic of Congo
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作者 Jean Pierre Habineza Mpunga Edson Niyonsaba Sebigunda +6 位作者 Chantal Shalukoma Philippe Lebailly Fabio Berti Constantin Dushimimana François Muhashy Habiyaremye Philippe Burny Baudouin Michel 《Agricultural Sciences》 2025年第1期48-67,共20页
A substantial body of research has been conducted with the objective of enhancing the understanding of Non-Timber Forest Products (NTFP) in Central Africa. A significant proportion of the studies focus on medicinal pl... A substantial body of research has been conducted with the objective of enhancing the understanding of Non-Timber Forest Products (NTFP) in Central Africa. A significant proportion of the studies focus on medicinal plants, in contrast to those that examine food products. Nevertheless, studies on edible wild mushrooms as NTFPs and cultivated mushrooms, on their economic potential and value chains in the Great Lakes Region, remain scarce and largely absent for some NTFPs. In light of the aforementioned considerations, the present study aims to examine the economic potential and value chain of the production sector of wild edible mushrooms (WEM) and cultivated mushrooms (CM) within the Virunga National Park (PNVi) and its surrounding areas in North Kivu, Democratic Republic of the Congo (DRC). To this end, a sample of 432 respondents was selected, distributed equitably among the actors of the Goma-Kitshanga-Mweso value chain, the Goma-Rutshuru chain, the Beni-Mutwanga chain, and the Beni-Mangina chain. A digital questionnaire consisting of open and closed questions was administered, and observations were carried out concurrently. The quantities of mushrooms sold were weighed and photographed. The results demonstrated that, when the eight-month fruiting period of wild and cultivated mushrooms was considered as a single year for all actors within the value chain, a picker could sell 6.1 kg at $2 and earn $12. A seller could sell 16 kg at $4 and earn $64, while a grower could sell 502 kg at $3 and earn $1506. Consequently, the CM grower generates a significantly higher profit than other participants in the value chain, despite the expenses he incurs. Ultimately, the domestication of WEM, highly prized by the local population of the Virunga National Park, has the potential to enhance their household incomes, as evidenced by the findings of this study. 展开更多
关键词 Economic Potential Cultivated Mushrooms Value Chain wild Edible Mushrooms Virunga National Park North Kivu
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Crop wild relatives:Harnessing ancestral diversity for future food security
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作者 Long Mao Dengcai Liu Takao Komatsuda 《The Crop Journal》 2025年第5期1319-1321,共3页
Modern crops were derived from wild ancestors between 8000 and 12,000 years ago in a process called domestication,when humans selected plant types that gave better yield.For cereal plants,they carry so-called “domest... Modern crops were derived from wild ancestors between 8000 and 12,000 years ago in a process called domestication,when humans selected plant types that gave better yield.For cereal plants,they carry so-called “domestication syndromes”,such as non-shattering spikes,free threshing grains,shorter seed dormancy,and larger grain size[1].But these early crop breeders selected only a small number of domesticated plants to satisfy their limited need,leading to a phenomenon called “domestication bottleneck”resulting in restricted genetic diversity among crop cultivars.Untapped crop wild relatives(CWRs)remain a source of traits to be bred into new cultivars with resilience to challenges facing modern agriculture. 展开更多
关键词 genetic diversity domesticated plants crop breeders domestication bottleneck crop wild relatives DOMESTICATION humans selected plant types resilience
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A near-complete genome assembly for northern wild rice(Zizania palustris L.)
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作者 Qing Ma Lei Gu +5 位作者 Yanning Xie Wanhong Li Lixia Wang Jie Qiu Zhongfeng Zhang Ning Yan 《The Crop Journal》 2025年第6期1955-1961,共7页
Northern wild rice(NWR;Zizania palustris L.),an annual aquatic plant in the Poaceae family,has high economic importance due to its nutrient-rich grains.However,the existing NWR genome assembly for this species has sev... Northern wild rice(NWR;Zizania palustris L.),an annual aquatic plant in the Poaceae family,has high economic importance due to its nutrient-rich grains.However,the existing NWR genome assembly for this species has severe fragmentation and incomplete gene representation.A near-complete genome was assembled in this study to provide a high-quality genomic reference for NWR-associated research.The assembled genome exhibited a total contig length of 1.41 Gb and a contig N50 of 109.22 Mb.Overall,a 73.60%repetitive sequence content was identified and 47,804 genes predicted.Phylogenetic analysis indicated that Z.palustris was most closely related to Zizania latifolia,with an estimated divergence time of 4.57–8.15 Mya.Meanwhile,Z.palustris underwent a recent,species-specific long terminal repeat(LTR)expansion,associated with its larger genome size.We identified two genomic blocks in the Z.palustris and Z.latifolia genomes that exhibit strong synteny with the rice phytocassane biosynthetic gene cluster.The centromeric satellite repeats in Z.palustris identified in this study primarily comprised a 145 bp repetitive unit.The findings also revealed centromere homogenisation and rearrangement accompanied by LTR invasion in NWR.Among the genes missing in the previous NWR genome,we observed LTR insertion events that resulted in expanded gene lengths in our updated NWR genome.The present updated NWR genome provides a valuable resource for crop genetic improvement,functional gene discovery,and research on critical biological processes. 展开更多
关键词 Northern wild rice Genome assembly Long terminal repeat Phytocassane biosynthetic gene cluster
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Conservation of Wild Plants with Extremely Small Populations under the Delineation of Ecological Protection Red Lines
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作者 Shuyan GUO Ying YANG +6 位作者 Qizhen SU Yuan BIAN Lin ZHU Huirui GUAN Zhongyun ZHANG Jin ZHAO Rui JI 《Asian Agricultural Research》 2025年第5期8-19,共12页
The implementation of the ecological protection red line serves as a crucial protective barrier for the conservation of wild plants with extremely small populations by delineating specific geographical areas designate... The implementation of the ecological protection red line serves as a crucial protective barrier for the conservation of wild plants with extremely small populations by delineating specific geographical areas designated for their conservation.The implementation of a comprehensive set of conservation measures aimed at establishing a biodiversity conservation network for wild plants with extremely small populations has laid the foundation for the health and stability of ecosystems,as well as the harmonious coexistence of humans and the natural environment.Research on the conservation of wild plants with extremely small populations serves as a critical foundation for informing and enhancing the effective conservation of such populations.This paper provides a systematic examination of the theoretical and practical conservation status of certain wild plants with extremely small populations and discusses the conservation trends of these populations within the framework of ecological protection red line delineation.In the future,strategies for the conservation of wild plants with extremely small populations should be integrated with an analysis of the causes of endangerment.This approach will provide a robust foundation for applied research focused on the conservation of these vulnerable plant populations. 展开更多
关键词 wild plants with extremely small populations Conservation research Cause of endangerment Conservation countermeasure
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Flavor improvement in melon:A metabolomic study of grafting with wild melon and hybrid pumpkin rootstocks
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作者 Jianguo Wang Muhammad Mohsin Kaleem +10 位作者 Hao Zhang Banlv Tian Yuchen Wang Bin Liu Qibao Yang Yanmei Lai Jihao Chen Bo Zhou Zhilong Bie Xuejun Zhang Yuan Huang 《Horticultural Plant Journal》 2025年第4期1707-1710,共4页
Melon(Cucumis melo L.)is a globally important fruit crop appreciated for its sweet taste,unique aroma,and nutritional value(Kaleem et al.,2024).Aroma,shaped by volatile organic compounds(VOCs),is a key trait influenci... Melon(Cucumis melo L.)is a globally important fruit crop appreciated for its sweet taste,unique aroma,and nutritional value(Kaleem et al.,2024).Aroma,shaped by volatile organic compounds(VOCs),is a key trait influencing consumer preference.These VOCs are mainly derived from amino acids,fatty acids,and terpenoid pathways(Chen et al.,2023).Esters contribute to fruity and sweet notes,whereas terpenes and C_(9) aldehydes/alcohols impart floral and melon-like aromas,respectively(Mayobre et al.,2024). 展开更多
关键词 flavor improvement Cucumis melo L metabolomic study GRAFTING wild melon volatile organic compounds vocs terpenoid pathways chen amino acidsfatty acidsand
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Geographical distribution and characterization of Jingmen tick virus in wild boars in China
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作者 Tong Wang Yu Guo +6 位作者 Yu Xu Heting Sun Peng Peng Siyuan Qin Guoqiang Zhu Changchun Tu Zhongzhong Tu 《Virologica Sinica》 2025年第1期137-140,共4页
Dear Editor,In recent decades,vector-transmitted emerging and re-emerging diseases pose public health issues around the world,in which emerging tick-borne viruses(TBVs)have played a major role since they are widely di... Dear Editor,In recent decades,vector-transmitted emerging and re-emerging diseases pose public health issues around the world,in which emerging tick-borne viruses(TBVs)have played a major role since they are widely distributed.TBVs have a wide range of hosts,including humans,livestock and rodents,with some of them able to cause severe diseases in human and domestic animals,such as Jingmen tick virus(JMTV)(Qin et al.,2014),tick-borne encephalitis virus(TBEV)(Xing et al.,2017),and Alongshan virus(ALSV)(Wang et al.,2019).Of the merging TBVs,JMTV is a novel pathogen that was first identified in Rhipicephalus microplus collected from the Jingmen city of Hubei province,China in 2010(Qin et al.,2014). 展开更多
关键词 wild boars alongshan virus alsv wang Host range Jingmen tick virus China Public health issues Emerging tick borne viruses Geographical distribution
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