[Objective] The aim was to explore the growth characteristics of different quantity leaflet compound leaves of Juglans cathayensis in Xinjiang so as to provide basic data for the study of J.cathayensis.[Method] The le...[Objective] The aim was to explore the growth characteristics of different quantity leaflet compound leaves of Juglans cathayensis in Xinjiang so as to provide basic data for the study of J.cathayensis.[Method] The length,width and biomass of compound leaves growth characteristics of three types of different quantity leaflet compound leaves of J.cathayensis were measured in large samples.[Result] The length,width,rachis biomass and total biomass of compound leaves increased with the number of leaflets increase;leaflets biomass of the same phyllotaxy decreased with the number of leaflets increase.The leaflet length,width and biomass of the same compound leaves increased with the number of phyllotaxy increase.The differences on petiole length and top leaflets length were not significant;there were significant differences on compound leaves width;the differences on the total biomass of compound leaves were extremely significant.[Conclusion] There was rather large ecology plasticity of the compound leaves of J.cathayensis in Xinjiang.展开更多
Compound leaf development requires the coordination of genetic factors, hormones, and other signals. In this study, we explored the functions of Class Ⅱ KNOTTED-like homeobox(KNOXII)genes in the model leguminous plan...Compound leaf development requires the coordination of genetic factors, hormones, and other signals. In this study, we explored the functions of Class Ⅱ KNOTTED-like homeobox(KNOXII)genes in the model leguminous plant Medicago truncatula. Phenotypic and genetic analyses suggest that Mt KNOX4, 5 are able to repress leafet formation, while Mt KNOX3, 9, 10 are not involved in this developmental process. Further investigations have shown that Mt KNOX4 represses the CK signal transduction, which is downstream of Mt KNOXⅠ-mediated CK biosynthesis. Additionally,two boundary genes, FUSED COMPOUND LEAF1(orthologue of Arabidopsis Class M KNOX) and NO APICAL MERISTEM(orthologue of Arabidopsis CUP-SHAPED COTYLEDON), are necessary for Mt KNOX4-mediated compound leaf formation.These findings suggest, that among the members of Mt KNOXⅡ, Mt KNOX4 plays a crucial role in integrating the CK pathway and boundary regulators,providing new insights into the roles of Mt KNOXⅡ in regulating the elaboration of compound leaves in M. truncatula.展开更多
WUSCHEL-related homeobox(WOX)transcription factors play a crucial role in lateral organ development in several plant species;however,their precise functions in soybean(Glycine max[L.]Merr.)were unclear.Here,we identif...WUSCHEL-related homeobox(WOX)transcription factors play a crucial role in lateral organ development in several plant species;however,their precise functions in soybean(Glycine max[L.]Merr.)were unclear.Here,we identified two independent multi-leaflet soybean mutants,mlw48-8 and mlw48-161,from a CRISPR/Cas9-engineered mutant library in the Williams 82 background.Both mutants exhibited irregular leaf margins,and the upper leaves were narrow and almost lanceolate at maturity.Molecular analysis revealed that these are allelic mutants with independent mutations in the WUSCHEL-related homeobox1(GmWOX1A)gene.A transcriptome analysis demonstrated that GmWOX1A modulates the expression of auxin-and leaf development–related genes.Yeast two-hybrid and split-luciferase complementation imaging assays revealed that GmWOX1A interacts with the YABBY family protein GmYAB5,providing further evidence of its potential involvement in leaf development.Notably,the mlw48-161 mutant showed an increased seed number per plant.Consequently,our study not only provides valuable insights into the role of GmWOX1A in soybean leaf development but also offers a potential strategy for high-yield breeding.展开更多
According to the proportion of 1:1, konjac flour and mulberry leaf powder are compounded into a kind of dietary fiber source(KMCP). It is found to be good for anti-inflammation. However, its precise anti-allergic rhin...According to the proportion of 1:1, konjac flour and mulberry leaf powder are compounded into a kind of dietary fiber source(KMCP). It is found to be good for anti-inflammation. However, its precise anti-allergic rhinitis effect and mechanism remain unknown. In our work, the effect of KMCP on allergic rhinitis(AR)induced by ovalbumin(OVA)was investigated. We found that the number of nasal rubbing and sneezing, the eosinophil(EOS)count in the nasal mucosa, and the serum levels of histamine(HIS), OVA-specific immunoglobulin E(OVA-sIgE)and interleukin-4(IL-4)were decreased, and the histopathological changes of nasal mucosa were inhibited. Additionally, the experiments further proved that the KMCP treatment could exert substantial effects on short-chain fatty acids(SCFAs)metabolism in the cecum as well. Overall findings suggest that KMCP could suppress the inflammatory response in AR mice, and serve as a novel curative therapeutic for AR without side effects.展开更多
基金Supported by National Natural Science Foundation of China(41061009)Yili Normal College Research Fund(200917)~~
文摘[Objective] The aim was to explore the growth characteristics of different quantity leaflet compound leaves of Juglans cathayensis in Xinjiang so as to provide basic data for the study of J.cathayensis.[Method] The length,width and biomass of compound leaves growth characteristics of three types of different quantity leaflet compound leaves of J.cathayensis were measured in large samples.[Result] The length,width,rachis biomass and total biomass of compound leaves increased with the number of leaflets increase;leaflets biomass of the same phyllotaxy decreased with the number of leaflets increase.The leaflet length,width and biomass of the same compound leaves increased with the number of phyllotaxy increase.The differences on petiole length and top leaflets length were not significant;there were significant differences on compound leaves width;the differences on the total biomass of compound leaves were extremely significant.[Conclusion] There was rather large ecology plasticity of the compound leaves of J.cathayensis in Xinjiang.
基金supported by grants from the National Natural Science Foundation of China (32170833, 31972958 and 32100284)Shandong Province (ZR2020KC018 and ZR202103010073)。
文摘Compound leaf development requires the coordination of genetic factors, hormones, and other signals. In this study, we explored the functions of Class Ⅱ KNOTTED-like homeobox(KNOXII)genes in the model leguminous plant Medicago truncatula. Phenotypic and genetic analyses suggest that Mt KNOX4, 5 are able to repress leafet formation, while Mt KNOX3, 9, 10 are not involved in this developmental process. Further investigations have shown that Mt KNOX4 represses the CK signal transduction, which is downstream of Mt KNOXⅠ-mediated CK biosynthesis. Additionally,two boundary genes, FUSED COMPOUND LEAF1(orthologue of Arabidopsis Class M KNOX) and NO APICAL MERISTEM(orthologue of Arabidopsis CUP-SHAPED COTYLEDON), are necessary for Mt KNOX4-mediated compound leaf formation.These findings suggest, that among the members of Mt KNOXⅡ, Mt KNOX4 plays a crucial role in integrating the CK pathway and boundary regulators,providing new insights into the roles of Mt KNOXⅡ in regulating the elaboration of compound leaves in M. truncatula.
基金supported by the Major Project of National Agricultural Science and Technology of China,the National Natural Science Foundation of China (32171965,32072091,31271750)the Core Technology Development for Breeding Program of Jiangsu Province (JBGS-2021-014)Collaborative Innovation Center for Modern Crop Production Co-sponsored by Province and Ministry (CIC-MCP)Program.
文摘WUSCHEL-related homeobox(WOX)transcription factors play a crucial role in lateral organ development in several plant species;however,their precise functions in soybean(Glycine max[L.]Merr.)were unclear.Here,we identified two independent multi-leaflet soybean mutants,mlw48-8 and mlw48-161,from a CRISPR/Cas9-engineered mutant library in the Williams 82 background.Both mutants exhibited irregular leaf margins,and the upper leaves were narrow and almost lanceolate at maturity.Molecular analysis revealed that these are allelic mutants with independent mutations in the WUSCHEL-related homeobox1(GmWOX1A)gene.A transcriptome analysis demonstrated that GmWOX1A modulates the expression of auxin-and leaf development–related genes.Yeast two-hybrid and split-luciferase complementation imaging assays revealed that GmWOX1A interacts with the YABBY family protein GmYAB5,providing further evidence of its potential involvement in leaf development.Notably,the mlw48-161 mutant showed an increased seed number per plant.Consequently,our study not only provides valuable insights into the role of GmWOX1A in soybean leaf development but also offers a potential strategy for high-yield breeding.
基金financially supported by Chongqing Undergraduate Training Programs for Innovation and Entrepreneurship (S201910635126)approved by the Natural Science Foundation of Chongqing Province-Level Municipality,China (cstc2018jcyjAX0527)。
文摘According to the proportion of 1:1, konjac flour and mulberry leaf powder are compounded into a kind of dietary fiber source(KMCP). It is found to be good for anti-inflammation. However, its precise anti-allergic rhinitis effect and mechanism remain unknown. In our work, the effect of KMCP on allergic rhinitis(AR)induced by ovalbumin(OVA)was investigated. We found that the number of nasal rubbing and sneezing, the eosinophil(EOS)count in the nasal mucosa, and the serum levels of histamine(HIS), OVA-specific immunoglobulin E(OVA-sIgE)and interleukin-4(IL-4)were decreased, and the histopathological changes of nasal mucosa were inhibited. Additionally, the experiments further proved that the KMCP treatment could exert substantial effects on short-chain fatty acids(SCFAs)metabolism in the cecum as well. Overall findings suggest that KMCP could suppress the inflammatory response in AR mice, and serve as a novel curative therapeutic for AR without side effects.
