The peroxins BcPex8, BcPex10, and BcPex12 are required for the development and pathogenicity of Botrytis cinerea
文献类型： 外文期刊
作者： Li, Ling 1 ; Yu, Meng-xue 1 ; Guo, Jian 3 ; Hao, Zhong-na 1 ; Zhang, Zhen 1 ; Lu, Zi-qi 1 ; Wang, Jiao-yu 1 ; Zhu, Xue-ming 1 ; Wang, Yan-li 1 ; Chen, Jie 4 ; Sun, Guo-Chang 1 ; Lin, Fu-cheng 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, State Key Lab Managing Biot & Chem Treats Qual & S, Hangzhou, Peoples R China
2.Zhejiang Agr & Forest Univ, Coll Adv Agr Sci, Key Lab Qual Improvement Agr Prod Zhejiang Prov, Hangzhou, Peoples R China
3.Zhejiang Agr & Forest Univ, Coll Food & Hlth, Hangzhou, Peoples R China
4.Zhejiang Agr & Forest Univ, Coll Forestry & Biotechnol, Hangzhou, Peoples R China
关键词： Botrytis cinerea; peroxisome; peroxins; fatty acid metabolism; pathogenicity
期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：6.064； 五年影响因子：6.843 ）
ISSN：
年卷期： 2022 年 13 卷
页码：
收录情况： SCI
摘要： Peroxisomes have been proved playing roles in infection of several plant pathogens. Although the contribution of a portion of peroxins in pathogenicity was demonstrated, most of them are undocumented in fungi, especially, Botrytis cinerea. The homologs of Pex8, Pex10, and Pex12 in B. cinerea were functionally characterized in this work using gene disruption strategies. Compared with the wild-type strain (WT), the Delta bcpex8, Delta bcpex10, and Delta bcpex12 mutants exhibited significant reduction in melanin production, fatty acid utilization, and decreased tolerance to high osmotic pressure and reactive oxygen species (ROS). The mycelial growth and conidiation of were significantly inhibited in Delta bcpex8, Delta bcpex10, and Delta bcpex12 strains. The mycelial growth rates of Delta bcpex8, Delta bcpex10, and Delta bcpex12 were reduced by 32, 35, and 34%, respectively, compared with WT and ectopic transformant (ET), and the conidiation was reduced by approximately 89, 27, and 88%, respectively. The conidial germination, germ tube elongation, and the formation of initiate infection structures (IFSs) were also reduced by the deletion of the genes. The pathogenicity was tested on the leaves of tobacco and strawberry, and fruits of tomato. On the leaves of tobacco and strawberry, the Delta bcpex8, Delta bcpex10, and Delta bcpex12 mutants could not induce necrotic lesions, and the lesions on tomato fruits infected with the mutants were significantly reduced than those of the wide type. The results indicated that BcPEX8, BcPEX10, and BcPEX12 are indispensable for the development and pathogenicity of B. cinerea.
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