Benzothiadiazole, a plant defense inducer, negatively regulates sheath blight resistance in Brachypodium distachyon.

ABSTRACT: Plant defense inducers that mimic functions of the plant immune hormone salicylic acid (SA) often affect plant growth. Although benzothiadiazole (BTH), a synthetic analog of SA, has been widely used to protect crops from diseases by inducing plant defense responses, we recently demonstrated that SA, but not BTH, confers resistance against Rhizoctonia solani, the causal agent of sheath blight disease, in Brachypodium distachyon. Here, we demonstrated that BTH compromised the resistance of Bd3-1 and Gaz4, the two sheath blight-resistant accessions of B. distachyon, which activate SA-dependent signaling following challenge by R. solani. Moreover, upon analyzing our published RNA-seq data from B. distachyon treated with SA or BTH, we found that BTH specifically induces expression of genes rela

SUBMITTER: Kouzai Y 

PROVIDER: S-EPMC6255916 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature