Spermidine Is Critical for Growth, Development, Environmental Adaptation, and Virulence in Fusarium graminearum.

ABSTRACT: Putrescine, spermidine, and spermine are the most common natural polyamines. Polyamines are ubiquitous organic cations of low molecular weight and have been well characterized for the cell function and development processes of organisms. However, the physiological functions of polyamines remain largely obscure in plant pathogenic fungi. Fusarium graminearum causes Fusarium head blight (FHB) and leads to devastating yield losses and quality reduction by producing various kinds of mycotoxins. Herein, we genetically analyzed the gene function of the polyamine biosynthesis pathway and evaluated the role of the endogenous polyamines in the growth, development, and virulence of F. graminearum. Our results found that deletion of spermidine biosynthesis gene FgSPE3 caused seri

SUBMITTER: Tang G 

PROVIDER: S-EPMC8640359 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature