Activating of jasmonic acid pathway through depletion of rice hydroperoxide lyase OsHPL3 revealed a crosstalk between HPL- and AOS-branch oxylipin pathways in rice

ABSTRACT: The allene oxide synthase (AOS) branch and the hydroperoxide lyase (HPL) branch of the oxylipin pathway function in plant responses to diverse stresses and have potential cross-talks between each other in the biosynthesis and signaling regulation, but there is still an absence of direct evidence and detailed information about this communication. Here, we identified and characterized a jasmonates acid (JA) overproduction mutant, cea62, by screening the Constitutive Expression of AOS gene (cea) from rice T-DNA insertion mutant library. Map-based cloning was used to isolate the target gene as the hydroperoxide lyase OsHPL3 gene. The gene expression, HPL enzyme activity and its resulting products, (E)-2-hexenal, were all depleted in the cea62 mutant, which resulted in dramatic JA overproductio

ORGANISM(S): Oryza sativa Japonica Group

SUBMITTER: Xiaoqiang Liu 

PROVIDER: E-GEOD-40242 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress