Invertases in Phytophthora infestans Localize to Haustoria and Are Programmed for Infection-Specific Expression.

ABSTRACT: The oomycete Phytophthora infestans, the causal agent of potato and tomato blight, expresses two extracellular invertases. Unlike typical fungal invertases, the P. infestans genes are not sucrose induced or glucose repressed but instead appear to be under developmental control. Transcript levels of both genes were very low in mycelia harvested from artificial medium but high in preinfection stages (sporangia, zoospores, and germinated cysts), high during biotrophic growth in leaves and tubers, and low during necrotrophy. Genome-wide analyses of metabolic enzymes and effectors indicated that this expression profile was fairly unusual, matched only by a few other enzymes, such as carbonic anhydrases and a few RXLR effectors. Genes for other metabolic enzymes were typically down

SUBMITTER: Kagda MS 

PROVIDER: S-EPMC7554665 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature