Infection of Arabidopsis thaliana by Phytophthora parasitica and identification of variation in host specificity.

ABSTRACT: Oomycete pathogens cause severe damage to a wide range of agriculturally important crops and natural ecosystems. They represent a unique group of plant pathogens that are evolutionarily distant from true fungi. In this study, we established a new plant-oomycete pathosystem in which the broad host range pathogen Phytophthora parasitica was demonstrated to be capable of interacting compatibly with the model plant Arabidopsis thaliana. Water-soaked lesions developed on leaves within 3 days and numerous sporangia formed within 5 days post-inoculation of P. parasitica zoospores. Cytological characterization showed that P. parasitica developed appressoria-like swellings and penetrated epidermal cells directly and preferably at the junction between anticlinal host cell walls. Multiple haustoria-l

SUBMITTER: Wang Y 

PROVIDER: S-EPMC6640465 | biostudies-literature | 2011 Feb

REPOSITORIES: biostudies-literature