The Phosphatase VdPtc3 Regulates Virulence in Verticillium dahliae by Interacting with VdAtg1

文献类型： 外文期刊

第一作者： Liu, Tao

作者： Liu, Tao;Qin, Jun;Shang, Wenjing;Hu, Xiaoping;Chen, Jieyin;Chen, Jieyin;Subbarao, Krishna. V. V.

作者机构：

关键词： melanin; microsclerotia; VdAtg1; VdPtc3; Verticillium wilt; virulence

期刊名称：PHYTOPATHOLOGY （ 影响因子：3.2； 五年影响因子：3.9 ）

ISSN： 0031-949X

年卷期： 2023 年 113 卷 6 期

页码：

收录情况： SCI

摘要： Type 2C protein phosphatases regulate various biological processes in eukaryotes. However, their functions in Verticillium dahliae have not been characterized. In this study, homologs VdPtc1, VdPtc3, VdPtc5, VdPtc6, and VdPtc7 were identified in V. dahliae on the basis of homologous comparison with those in Saccharomyces cerevisiae. VdPtc2 and VdPtc4 are missing in the genome of the V. dahliae XJ592 strain. VdPtc3 is the homolog of Ptc2, Ptc3, and Ptc4 proteins in S. cerevisiae, implying that VdPtc3 may play versatile functions in V. dahliae. VdPtc3 promoted conidium development, melanin, and microsclerotium formation in V. dahliae. The Delta VdPtc3 strains showed increased sensitivity to NaCl and sorbitol and augmented the phosphorylation of p38 mitogen-activated protein kinase homolog Hog1 induced by osmotic stress. Besides, the Delta VdPtc3 strains also showed milder Verticillium wilt symptom on cotton. Furthermore, VdPtc3 interacts with VdAtg1, which modulates melanin and microsclerotium formation, as well as pathogenicity.

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