Cellular and transcriptional responses of wheat during compatible and incompatible race-specific interactions with Puccinia striiformis f. sp. tritici.

ABSTRACT: The initial stages of Puccinia striiformis f. sp. tritici (the causal agent of yellow rust in wheat) infection triggered a hypersensitive cell death (HCD) response in both compatible and Yr1-mediated incompatible interactions, although the response was earlier and more extensive in the incompatible interaction. Later stages of fungal development were only associated with an HCD response in the incompatible interaction, the HCD response being effectively suppressed in the compatible interaction. Cell autofluorescence was seen in mesophyll cells in direct contact with fungal infection hyphae (primary HCD) and in adjacent mesophyll cells (secondary HCD), indicating the activation of cell-to-cell signalling. Microarray analysis identified a number of defence-related transcripts implicated in Y

SUBMITTER: Bozkurt TO 

PROVIDER: S-EPMC6640440 | biostudies-literature | 2010 Sep

REPOSITORIES: biostudies-literature