Comparative proteomics combined with analyses of transgenic plants reveal ZmREM1.3 mediates maize resistance to southern corn rust

被引:44
作者
Wang, Shunxi [1 ,2 ]
Chen, Zan [1 ,2 ]
Tian, Lei [1 ,2 ]
Ding, Yezhang [3 ]
Zhang, Jun [4 ]
Zhou, Jinlong [1 ,2 ]
Liu, Ping [1 ,2 ]
Chen, Yanhui [1 ,2 ]
Wu, Liuji [1 ,2 ]
机构
[1] Henan Agr Univ, Synerget Innovat Ctr Henan Grain Crops, Zhengzhou, Henan, Peoples R China
[2] Key Lab Physiol Ecol & Genet Improvement Food Cro, Zhengzhou, Henan, Peoples R China
[3] Univ Calif San Diego, Sect Cell & Dev Biol, La Jolla, CA 92093 USA
[4] Henan Acad Agr Sci, Cereal Crop Res Inst, Zhengzhou, Henan, Peoples R China
基金
中国国家自然科学基金;
关键词
Southern corn rust; maize; transgenic; remorin; proteomic; resistance; PLASMA-MEMBRANE; PUCCINIA-POLYSORA; DISEASE RESISTANCE; GENE-EXPRESSION; LIPID RAFTS; FUNCTIONAL-CHARACTERIZATION; QUANTITATIVE-ANALYSIS; SYSTEMIC RESISTANCE; REMORIN PROTEINS; DEFENSE;
D O I
10.1111/pbi.13129
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Southern corn rust (SCR), which is a destructive disease caused by Puccinia polysora Underw. (P. polysora), commonly occurs in warm-temperate and tropical regions. To identify candidate proteins related to SCR resistance and characterize the molecular mechanisms underlying the maize-P. polysora interaction, a comparative proteomic analysis of susceptible and resistant maize lines was performed. Statistical analyses revealed 1489 differentially abundant proteins in the resistant line, as well as 1035 differentially abundant proteins in the susceptible line. After the P. polysora infection, the abundance of one remorin protein (ZmREM1.3) increased in the resistant genotype, but decreased in the susceptible genotype. Plant-specific remorins are important for responses to microbial infections as well as plant signalling processes. In this study, transgenic maize plants overexpressing ZmREM1.3 exhibited enhanced resistance to the biotrophic P. polysora. In contrast, homozygous ZmREM1.3 UniformMu mutant plants were significantly more susceptible to P. polysora than wild-type plants. Additionally, the ZmREM1.3-overexpressing plants accumulated more salicylic acid (SA) and jasmonic acid (JA). Moreover, the expression levels of defence-related genes were higher in ZmREM1.3-overexpressing maize plants than in non-transgenic control plants in response to the P. polysora infection. Overall, our results provide evidence that ZmREM1.3 positively regulates maize defences against P. polysora likely via SA/JA-mediated defence signalling pathways. This study represents the first large-scale proteomic analysis of the molecular mechanisms underlying the maize-P. polysora interaction. This is also the first report confirming the remorin protein family affects plant resistance to SCR.
引用
收藏
页码:2153 / 2168
页数:16
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