Article
Spliceosomal protein U2B″ delays leaf senescence by enhancing splicing variant JAZ9β expression to attenuate jasmonate signaling in Arabidopsis.
The New phytologist - 1 Nov 2023
Yang Qi, Tan Shuya, Wang Hou-Ling, Wang Ting, Cao Jie, Liu Hairong, Sha Yueqi, Zhao Yaning, Xia Xinli, Guo Hongwei, Li Zhonghai
Abstract excerpt
The regulatory framework of leaf senescence is gradually becoming clearer; however, the fine regulation of this process remains largely unknown. Here, genetic analysis revealed that U2 small nuclear ribonucleoprotein B (U2B″), a component of the spliceosome, is a negative regulator of leaf senescence. Mutation of U2B″ led to precocious leaf senescence, whereas overexpression of U2B″ extended leaf longevity....
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