CgGCS, Encoding a Glucosylceramide Synthase, Is Required for Growth, Conidiation and Pathogenicity in Colletotrichum gloeosporioides
文献类型： 外文期刊
作者： Huang, Yimei 1 ; Li, Bin 1 ; Yin, Jian 6 ; Yang, Qiaosong 1 ; Sheng, Ou 1 ; Deng, Guiming 1 ; Li, Chunyu 1 ; Hu, Chunhua; 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Guangzhou, Guangdong, Peoples R China
2.Minist Agr, Key Lab South Subtrop Fruit Biol & Genet Resource, Guangzhou, Guangdong, Peoples R China
3.Key Lab Trop & Subtrop Fruit Tree Res, Guangzhou, Guangdong, Peoples R China
4.Huazhong Agr Univ, Coll Hort & Forestry Sci, Wuhan, Hubei, Peoples R China
5.South China Agr Univ, Coll Life Sci, Guangzhou, Guangdong, Peoples R China
6.Sun Yat Sen Univ, Sch Life Sci, Guangzhou, Guangdong, Peoples R China
关键词： Colletotrichum gloeosporioides; glucosylceramide; GCS conidiogenesis; growth rate; pathogenicity
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： 2019 年 10 卷
页码：
收录情况： SCI
摘要： Fungal glucosylceramide plays important role in cell division, hyphal formation and growth, spore germination and the modulation of virulence and has recently been considered as target for small molecule inhibitors. In this study, we characterized CgGCS, a protein encoding a glucosylceramide synthase (GCS) in Colletotrichum gloeosporioides. Disruption of CgGCS resulted in a severe reduction of mycelial growth and defects in conidiogenesis. Sphingolipid profile analysis revealed large decreases in glucosylceramide production in the mutant strains. Pathogenicity assays indicated that the ability of the Delta CgGCS mutants to invade both tomato and mango hosts was almost lost. In addition, the expression levels of many genes, especially those related to metabolism, were shown to be affected by the mutation of CgGCS via transcriptome analysis. Overall, our results demonstrate that C. gloeosporioides glucosylceramide is an important regulatory factor in fungal growth, conidiation, and pathogenesis in hosts.
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