您好,欢迎访问安徽省农业科学院 机构知识库!

FgRad50 Regulates Fungal Development, Pathogenicity, Cell Wall Integrity and the DNA Damage Response in Fusarium graminearum

文献类型: 外文期刊

作者: Zhang, Chengqi 1 ; Ren, Xuexiang 2 ; Wang, Xintong 1 ; Wan, Qiong 1 ; Ding, Kejian 1 ; Chen, Li 1 ;

作者机构: 1.Anhui Agr Univ, Key Lab Biol & Sustainable Management Plant Dis &, Anhui Higher Educ Inst, Coll Plant Protect, Hefei, Peoples R China

2.Anhui Acad Agr Sci, Inst Plant Protect & Agroprod Safety, Hefei, Peoples R China

关键词: Fusarium graminearum; FgRad50; fungal growth and virulence; deoxynivalenol; cell wall integrity; DNA damage response

期刊名称:FRONTIERS IN MICROBIOLOGY ( 影响因子:5.64; 五年影响因子:6.32 )

ISSN: 1664-302X

年卷期: 2020 年 10 卷

页码:

收录情况: SCI

摘要: Rad50 is a member of the double strand break repair epistasis group of proteins that play important roles in regulating DNA damage checkpoint signaling, telomere maintenance, homologous recombination and non-homologous end-joining in eukaryotes. However, the function of Rad50 in fungal plant pathogens remains unknown. In this study, we report the functional investigation of FgRad50 in the wheat head blight pathogen Fusarium graminearum. FgRad50 is an ortholog of Saccharomyces cerevisiae Rad50 that could restore the sensitivity of the yeast Rad50 mutant to DNA damage agents. The FgRad50 deletion mutant (Delta FgRad50) exhibited defective vegetative growth, asexual/sexual development and virulence, as well as disrupted deoxynivalenol biosynthesis. Moreover, deletion of FgRad50 resulted in hypersensitivity to DNA damage agents. Unexpectedly, FgRad50 plays a key role in responses to cell wall-damaging agents by negatively regulating phosphorylation of FgMgv1, a MAP kinase in the cell wall integrity (CWI) pathway. Taken together, these results suggest that FgRad50 plays critical roles in fungal development, virulence and secondary metabolism in F. graminearum, as well as CWI and the DNA damage response.

  • 相关文献
作者其他论文 更多>>