MaMPK2 enhances MabZIP93-mediated transcriptional activation of cell wall modifying genes during banana fruit ripening
MaMPK2 enhances MabZIP93-mediated transcriptional activation of cell wall modifying genes during banana fruit ripening
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MaMPK2 增强香蕉果实成熟过程中 MabZIP93 介导的细胞壁修饰基因的转录激活
DOI：
10.1007/s11103-019-00895-x
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发表时间：
2019-07
影响因子：
5.1
通讯作者：
Kuang Jianfei
中科院分区：
文献类型：
--
作者：
Wu Chaojie;Shan Wei;Liang Shumin;Zhu Lisha;Guo Yufan;Chen Jianye;Lu Wangjin;Li Qianfeng;Su Xinguo;Kuang Jianfei
转录调控是植物果实成熟等多种发育过程中调控基因表达的重要分子机制。这涉及到转录因子（TF）和靶基因启动子的相互作用。在香蕉中，虽然已经表征了许多与果实成熟相关的TF，但它们的数量相对较少。在这里，我们确定了一个核定位的碱性亮氨酸拉链（bZIP）TF，MabZIP93，与香蕉成熟。MabZIP93通过直接结合细胞壁修饰基因MaPL 2、MaPE 1、MaXTH 23和MaXGT 1的启动子来激活它们。在香蕉果实中瞬时过表达MabZIP93导致MaPL 2、MaPE 1、MaXTH 23和MaXGT 1的表达增加。此外，发现有丝分裂原活化蛋白激酶MaMPK2和MabZIP93与MabZIP93相互作用。MabZIP93与MaMPK 2的相互作用增强了MabZIP93对细胞壁修饰基因的激活，这可能是由于MaMPK 2介导的MabZIP93的磷酸化。总的来说，这项研究表明，MaMPK2与MabZIP93相互作用并磷酸化MabZIP93，以促进MabZIP93介导的细胞壁修饰基因的转录激活，从而扩大了我们对与香蕉果实成熟相关的基因网络的理解。
Transcriptional regulation is an essential molecular machinery in controlling gene expression in diverse plant developmental processes including fruit ripening. This involves the interaction of transcription factors (TFs) and promoters of target genes. In banana, although a number of fruit ripening-associated TFs have been characterized, their number is relatively small. Here we identified a nuclear-localized basic leucine zipper (bZIP) TF,MabZIP93, associated with banana ripening. MabZIP93 activated cell wall modifying genesMaPL2,MaPE1,MaXTH23andMaXGT1by directly binding to their promoters. Transient over-expression ofMabZIP93in banana fruit resulted in the increased expression ofMaPL2,MaPE1,MaXTH23andMaXGT1. Moreover, a mitogen-activated protein kinase MaMPK2 and MabZIP93 were found to interact with MabZIP93. The interaction of MabZIP93 with MaMPK2 enhanced MabZIP93 activation of cell wall modifying genes, which was likely due to the phosphorylation of MabZIP93 mediated by MaMPK2. Overall, this study shows that MaMPK2 interacts with and phosphorylates MabZIP93 to promote MabZIP93-mediated transcriptional activation of cell wall modifying genes, thereby expanding our understanding of gene networks associated with banana fruit ripening.
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影响因子：
8.8
作者：
Pruneda-Paz JL;Breton G;Nagel DH;Kang SE;Bonaldi K;Doherty CJ;Ravelo S;Galli M;Ecker JR;Kay SA
通讯作者：
Kay SA
影响因子：
4.4
作者：
Panova M;Johansson T;Canbäck B;Bentzer J;Rosenblad MA;Johannesson K;Tunlid A;André C
通讯作者：
André C
青蒿素生物合成促进激酶 1 通过磷酸化 AabZIP1 正向调节青蒿素生物合成
影响因子：
6.9
作者：
Zhang F;Xiang L;Yu Q;Zhang H;Zhang T;Zeng J;Geng C;Li L;Fu X;Shen Q;Yang C;Lan X;Chen M;Tang K;Liao Z
通讯作者：
Liao Z
影响因子：
6.9
作者：
Song QX;Li QT;Liu YF;Zhang FX;Ma B;Zhang WK;Man WQ;Du WG;Wang GD;Chen SY;Zhang JS
通讯作者：
Zhang JS
影响因子：
2.9
作者：
WAN, CY;WILKINS, TA
通讯作者：
WILKINS, TA