TaWAKL8-2B, a wall-associated receptor-like kinase, mediates wheat rust resistance by linalool and ROS accumulation.

ABSTRACT: Wall-associated receptor kinases (WAKs) and WAK-likes (WAKLs) play pivotal roles in regulating plant immunity, through multiple downstream signaling components. However, knowledge of WAKs/WAKLs in wheat immune responses to rust diseases remain limited. In this study, we identified and characterized a wheat WAKL, TaWAKL8-2B, which is upregulated during wheat resistance to both Puccinia striiformis f. sp. tritici (Pst) and Puccinia triticina (Ptt), indicating its role in wheat resistance to these two rust fungi. Transgenic wheat plants overexpressing TaWAKL8-2B exhibited enhanced resistance to stripe rust and leaf rust, accompanied by increased reactive oxygen species (ROS) production and up-regulated defense-related gene expression. Whereas, knockout TaWAKL8-2B reduced resistance to Pst and

SUBMITTER: He M 

PROVIDER: S-EPMC12361011 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature