ChCDC25 Regulates Infection-Related Morphogenesis and Pathogenicity of the Crucifer Anthracnose Fungus Colletotrichum higginsianum.

ABSTRACT: The fungal pathogen, Colletotrichum higginsianum, causes a disease called anthracnose on various cruciferous plants. Here, we characterized a Saccharomyces cerevisiae CDC25 ortholog in C. higginsianum, named ChCDC25 (CH063_04363). The ChCDC25 deletion mutants were defective in mycelial growth, conidiation, conidial germination, appressorial formation, and invasive hyphal growth on Arabidopsis leaves, resulting in loss of virulence. Furthermore, deletion of ChCDC25 led to increased sensitivity to cell wall stress and resulted in resistance to osmotic stress. Exogenous cyclic adenosine monophosphate (cAMP) and IBMX treatments were able to induce appressorial formation in the ChCDC25 mutants, but abnormal germ tubes were still formed. Th

SUBMITTER: Yan Y 

PROVIDER: S-EPMC7227425 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature