CmPYL7 positively regulates the cold tolerance via interacting with CmPP2C24-like in oriental melon.

ABSTRACT: Pyrabactin or Actin Resistance1/PYR1-Like/Regulatory Components of abscisic acid (ABA) Receptors (PYR/PYL/RCARs, referred to as PYLs) are direct receptors of ABA that function pivotally in the ABA-signaling pathway. Previously, we discovered that CmPYL7 was strongly upregulated by cold stress in oriental melon (Cucumis melo). In this study, we demonstrated that CmPYL7 was strongly induced by cold treatment (Cold), Cold+ABA, and Cold+fluridone (Flu, an ABA inhibitor) treatments, while the expression level of CmPYL7 under Cold+Flu is lower than that of cold treatment. Silencing CmPYL7 in oriental melon seedlings significantly decreased cold tolerance due to the reduced activities of antioxidant enzymes [superoxide dismutase (SOD); catalase (CAT), and ascorbate peroxidase (APX)] and the accum

SUBMITTER: Liu W 

PROVIDER: S-EPMC11660021 | biostudies-literature | 2024 Nov-Dec

REPOSITORIES: biostudies-literature