The MAP Kinase PvMK1 Regulates Hyphal Development, Autophagy, and Pathogenesis in the Bayberry Twig Blight Fungus Pestalotiopsis versicolor

文献类型： 外文期刊

第一作者： Yan, Xiujuan

作者： Yan, Xiujuan;Ye, Zihong;Qi, Xingjiang;Yan, Xiujuan;Zhang, Shuwen;Yu, Zheping;Sun, Li;Zhou, Lei;Qi, Xingjiang;Sohail, Muhammad Aamir;Zhou, Lei;Qi, Xingjiang

作者机构：

关键词： Pestalotiopsis versicolor; MAP kinase; stress response; autophagy; pathogenesis

期刊名称：JOURNAL OF FUNGI （ 影响因子：4.7； 五年影响因子：5.2 ）

ISSN：

年卷期： 2023 年 9 卷 6 期

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收录情况： SCI

摘要： Bayberry twig blight caused by the ascomycete fungus Pestalotiopsis versicolor is a devastating disease threatening worldwide bayberry production. However, the molecular basis underlying the pathogenesis of P. versicolor is largely unknown. Here, we identified and functionally characterized the MAP kinase PvMk1 in P. versicolor through genetic and cellular biochemical approaches. Our analysis reveals a central role of PvMk1 in regulating P. versicolor virulence on bayberry. We demonstrate that PvMk1 is involved in hyphal development, conidiation, melanin biosynthesis, and cell wall stress responses. Notably, PvMk1 regulates P. versicolor autophagy and is essential for hyphal growth under nitrogen-depleting conditions. These findings suggest the multifaceted role of PvMk1 in regulating P. versicolor development and virulence. More remarkably, this evidence of virulence-involved cellular processes regulated by PvMk1 has paved a fundamental way for further understanding the impact of P. versicolor pathogenesis on bayberry.

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