Rgs1 is a regulator of effector gene expression during plant infection by the rice blast fungus Magnaporthe oryzae.

ABSTRACT: To cause rice blast disease, the filamentous fungus Magnaporthe oryzae secretes a battery of effector proteins into host plant tissue to facilitate infection. Effector-encoding genes are expressed only during plant infection and show very low expression during other developmental stages. How effector gene expression is regulated in such a precise manner during invasive growth by M. oryzae is not known. Here, we report a forward-genetic screen to identify regulators of effector gene expression, based on the selection of mutants that show constitutive effector gene expression. Using this simple screen, we identify Rgs1, a regulator of G-protein signaling (RGS) protein that is necessary for appressorium development, as a novel transcriptional regulator of effector gene expressio

SUBMITTER: Tang B 

PROVIDER: S-EPMC10041150 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature