Mitogen-activated protein kinase 14-mediated phosphorylation of MaMYB4 negatively regulates banana fruit ripening.
Mitogen-activated protein kinase 14-mediated phosphorylation of MaMYB4 negatively regulates banana fruit ripening.
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DOI：
10.1093/hr/uhac243
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发表时间：
2023
影响因子：
8.7
通讯作者：
中科院分区：
文献类型：
--
作者：
Mitogen-activated protein kinase (MAPK/MPK) cascades play crucial parts in plant growth, development processes, immune ability, and stress responses; however, the regulatory mechanism by which MAPK affects fruit ripening remains largely unexplored. Here, we reported that MaMPK14 cooperated with MaMYB4 to mediate postharvest banana fruit ripening. Transient overexpression of individual MaMPK14 and MaMYB4 in banana fruit delayed fruit ripening, confirming the negative roles in the ripening. The ripening negative regulator MaMYB4 could repress the transcription of genes associated with ethylene biosynthesis and fruit softening, such as MaACS1, MaXTH5, MaPG3, and MaEXPA15. Furthermore, MaMPK14 phosphorylated MaMYB4 at Ser160 via a direct interaction. Mutation at Ser160 of MaMYB4 reduced its interaction with MaMPK14 but did not affect its subcellular localization. Importantly, phosphorylation of MaMYB4 by MaMPK14 enhanced the MaMYB4-mediated transcriptional inhibition, binding strength, protein stability, and the repression of fruit ripening. Taken together, our results delineated the regulation pathway of MAPK module during banana fruit ripening, which involved the phosphorylation modification of MaMYB4 mediated by MaMPK14.
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影响因子：
14.9
作者：
Kim SH;Kim HS;Bahk S;An J;Yoo Y;Kim JY;Chung WS
通讯作者：
Chung WS
DOI：
10.1073/pnas.0907205106
发表时间：
2009-12-01
影响因子：
11.1
作者：
Jammes, Fabien;Song, Charlotte;Kwak, June M.
通讯作者：
Kwak, June M.
苹果 MYB 转录因子调节耐冷性和花青素积累并经历 MIEL1 介导的降解
影响因子：
13.8
作者：
An, Jian-Ping;Wang, Xiao-Fei;Hao, Yu-Jin
通讯作者：
Hao, Yu-Jin
影响因子：
11.6
作者：
Lee, MM;Schiefelbein, J
通讯作者：
Schiefelbein, J
DOI：
10.1073/pnas.97.6.2940
发表时间：
2000-03-14
影响因子：
11.1
作者：
Kovtun, Y;Chiu, WL;Sheen, J
通讯作者：
Sheen, J