Bacillus cereus AR156 triggers induced systemic resistance against Pseudomonas syringae pv. tomato DC3000 by suppressing miR472 and activating CNLs-mediated basal immunity in Arabidopsis.

ABSTRACT: Small RNAs play an important role in plant innate immunity. However, their regulatory function in induced systemic resistance (ISR) triggered by plant growth-promoting rhizobacteria remains unclear. Here, using Arabidopsis as a model system, one plant endogenous small RNA, miR472, was identified as an important regulator involved in the process of Bacillus cereus AR156 ISR against Pseudomonas syringae pv. tomato (Pst) DC3000. The results revealed that miR472 was down-regulated with B. cereus AR156 treatment by comparing small RNA profiles and northern blot analysis of Arabidopsis with or without B. cereus AR156 treatment. Plants overexpressing miR472 showed higher susceptibility to Pst DC3000; by contrast, plant lines with miR472 knocked down/out showed the opposite. The transcriptome sequ

SUBMITTER: Jiang C 

PROVIDER: S-EPMC7214473 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature