科研成果
概况介绍
获奖
论文
专著
专利
成果转化
现在位置:首页 > 科研成果 > 论文

论文题目: Elevated CO2 Increases R Gene-Dependent Resistance of Medicago truncatula Against the Pea Aphid by Up-Regulating a Heat Shock Gene
论文题目英文:
作者: 孙玉诚①,郭慧娟①,Er-Liang Yuan,戈峰*
论文出处:
年: 2017
卷:
期: DOI: 10.1111/nph.14892
页:
联系作者: 戈峰
发表期刊: New Phytologist
ISSN:
第一作者所在部门:
收录类别:
论文链接: http://onlinelibrary.wiley.com/doi/10.1111/nph.14892/abstract
影响因子:
摘要:
  • Resistance against pathogens and herbivorous insects in many plant results from the expression of resistance (R) genes. Few reports, however, have considered the effects of elevated CO2 on R gene-based resistance in plants.
  • The current study determined the responses of two near isogenic Medicago truncatula genotypes (Jester has an R gene and A17 does not) to the pea aphid and elevated CO2 in open-top chambers in the field.
  • Aphid abundance, mean relative growth rate and feeding efficiency were increased by elevated CO2 on A17 plants but were reduced on Jester plants. According to proteomic and gene expression data, elevated CO2 enhanced pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) but decreased the effector-triggered immunity (ETI) in aphid-infested A17 plants. For aphid-infested Jester plants, by contrast, elevated CO2 enhanced the ETI-related heat shock protein (HSP) 90 and its co-chaperones, the jasmonic acid (JA) signaling pathway, and ubiquitin-mediated proteolysis. In a loss-of-function experiment, silencing of the HSP90 gene in Jester plants impaired the JA signaling pathway and ubiquitin-mediated proteolysis against the aphid under ambient CO2, and negated the increased resistance against the aphid under elevated CO2.
  • Our results suggest that increases in expression of HSP90 are responsible for the enhanced resistance against the aphid under elevated CO2.
英文摘要:
外单位作者单位:
   

关闭窗口

返回首页