Genome-wide analysis of autophagy-related genes in banana highlights MaATG8s in cell death and autophagy in immune response to Fusarium wilt

文献类型: 外文期刊

第一作者: Wei, Yunxie

作者: Wei, Yunxie;Liu, Guoyin;Wu, Chunjie;Liu, Wei;Zeng, Hongqiu;He, Chaozu;Shi, Haitao;Wei, Yunxie;Liu, Guoyin;Wu, Chunjie;Liu, Wei;Zeng, Hongqiu;He, Chaozu;Shi, Haitao;Liu, Wen;Hu, Wei

作者机构:

关键词: Autophagy-related gene (ATG);Banana (Musa acuminata);Autophagy;Reactive oxygen species (ROS);Cell death;Immune response;Fusarium wilt

期刊名称:PLANT CELL REPORTS ( 影响因子:4.57; 五年影响因子:4.463 )

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年卷期:

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收录情况: SCI

摘要: Autophagy is responsible for the degradation of damaged cytoplasmic constituents in the lysosomes or vacuoles. Although the effects of autophagy have been extensively revealed in model plants, the possible roles of autophagy-related gene in banana remain unknown. In this study, 32 MaATGs were identified in the draft genome, and the profiles of several MaATGs in response to fungal pathogen Fusarium oxysporum f. sp. cubense (Foc) were also revealled. We found that seven MaATG8s were commonly regulated by Foc. Through transient expression in Nicotiana benthamiana leaves, we highlight the novel roles of MaATG8s in conferring hypersensitive-like cell death, and MaATG8s-mediated hypersensitive response-like cell death is dependent on autophagy. Notablly, autophagy inhibitor 3-methyladenine (3-MA) treatment resulted in decreased disease resistance in response to Foc4, and the effect of 3-MA treatment could be rescued by exogenous salicylic acid, jasmonic acid and ethylene, indicating the involvement of autophagy-mediated plant hormones in banana resistance to Fusarium wilt. Taken together, this study may extend our understanding the putative role of MaATG8s in hypersensitive-like cell death and the essential role of autophagy in immune response against Foc in banana.

分类号: Q942

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