<i>ALLENE OXIDE SYNTHASE</i> (<i>AOS</i>) induces petal senescence through a novel JA-associated regulatory pathway in <i>Arabidopsis</i>.

ABSTRACT: Flowers are crucial for the reproduction of flowering plants and their senescence has drastic effects on plant-animal interactions as well as pollination. Petal senescence is the final phase of flower development which is regulated by hormones and genes. Among these, jasmonic acid (JA) has emerged as a major contributor to petal senescence, but its molecular mechanisms remain elusive. Here, the role of JA in petal senescence in Arabidopsis was investigated. We showed that petal senescence in aos mutant was significantly delayed, which also affected petal cell size and proliferation. Similar significant delays in petal senescence were observed in dad1 and coi1 mutants. However, MYB21/24 and MYC2/3/4, known downstream regulators of JA in flower devel

SUBMITTER: Wu L 

PROVIDER: S-EPMC11016053 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature