Escalation in the host-pathogen arms race: A host resistance response corresponds to a heightened bacterial virulence response.

ABSTRACT: The zig-zag model of host-pathogen interaction describes the relative strength of defense response across a spectrum of pathogen-induced plant phenotypes. A stronger defense response results in increased resistance. Here, we investigate the strength of pathogen virulence during disease and place these findings in the context of the zig-zag model. Xanthomonas vasicola pv. holcicola (Xvh) causes sorghum bacterial leaf streak. Despite being widespread, this disease has not been described in detail at the molecular level. We divided diverse sorghum genotypes into three groups based on disease symptoms: water-soaked lesions, red lesions, and resistance. Bacterial growth assays confirmed that these three phenotypes represent a range of resistance and susceptibility. To simultaneously reveal defe

SUBMITTER: Wang Q 

PROVIDER: S-EPMC7822516 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature