Kinase Hog1 and Adr1 Opposingly Regulate Haploid Cell Morphology by Controlling Vacuole Size in Sporisorium scitamineum
文献类型： 外文期刊
作者： Cai, Enping 1 ; Yan, Meixin 3 ; Sun, Xian 1 ; Zeng, Rong 1 ; Zheng, Wenqiang 1 ; Deng, Yizhen 1 ; Jiang, Zide 1 ; Chang, Changqing 1 ;
作者机构： 1.South China Agr Univ, Coll Plant Protect, Integrate Microbiol Res Ctr, Guangzhou 510642, Peoples R China
2.Guangdong Lab Lingnan Modern Agr, Guangzhou 510642, Peoples R China
3.Guangxi Acad Agr Sci, Sugarcane Res Inst, Nanning 530000, Peoples R China
关键词： Sporisorium scitamineum; MAP kinase Hog1; cAMP; PKA; cell wall permeability
期刊名称：JOURNAL OF FUNGI （ 影响因子：5.724； 五年影响因子：6.413 ）
ISSN：
年卷期： 2022 年 8 卷 8 期
页码：
收录情况： SCI
摘要： Morphogenesis is a strictly regulated efficient system in eukaryotes for adapting to environmental changes. However, the morphogenesis regulatory mechanism in smut fungi is not clear. This study reports a relationship between MAP kinase Hog1 and cAMP-dependent protein kinase A catalytic subunit (Adr1) for the morphological regulation in the sugarcane pathogen Sporisorium scitamineum. The results demonstrated that MAP kinase Hog1 and cAMP/PKA signaling pathways are essential for the morphological development of S. scitamineum. Interestingly, MAP kinase Hog1 and cAMP/PKA signaling pathways' defective mutants exhibit an opposite morphological phenotype. The morphology of cAMP/PKA defective mutants is recovered by deleting the SsHOG1 gene. However, MAP kinase Hog1 and cAMP-dependent protein kinase catalytic subunit Adr1 do not interfere with each other. Further investigations showed that kinase Hog1 and Adr1 antagonistically regulates the vacuolar size, which contributes to the cell size and determines the cellular elongation rates. Kinase Hog1 and Adr1 also antagonistically balanced the cell wall integrity and permeability. Taken together, kinase Hog1- and Adr1-based opposing morphogenesis regulation of S. scitamineum by controlling the vacuolar size and cell wall permeability is established during the study.
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