Identification and characterization of a spotted-leaf mutant spl40 with enhanced bacterial blight resistance in rice.

ABSTRACT:

Background

Spotted leaf mutants show typical necrotic lesions that appear spontaneously in the absence of any pathogen attack. These mutants are often characterized to exhibit programmed cell death (PCD) and activation of plant defense responses resulting in enhanced disease resistance to multiple pathogens. Here, we reported a novel spotted-leaf mutant, spl40 that showed enhanced disease resistance response.

Results

Initially lesions appeared at leaf tips during seedling stage and gradually covered the whole leaf at the tillering stage. The lesion development was light-dependent. spl40 showed obvious cell death at and around the lesion, and burst of reactive oxygen species (ROS) was accompanied by disturbed ROS scavenging system. Photosynthetic capacity was compromised as e

SUBMITTER: Sathe AP 

PROVIDER: S-EPMC6708518 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature