A Golgi-localized manganese transporter functions in pollen tube tip growth to control male fertility in Arabidopsis.
A Golgi-localized manganese transporter functions in pollen tube tip growth to control male fertility in Arabidopsis.
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高尔基体定位的锰转运蛋白在花粉管尖端生长中发挥作用，以控制拟南芥雄性生育力
DOI：
10.1016/j.xplc.2021.100178
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发表时间：
2021-05-10
影响因子：
10.5
通讯作者：
Luan S
中科院分区：
文献类型：
--
作者：
Zhang B;Zhang C;Liu C;Fu A;Luan S
在植物细胞的各个隔室中，锰是许多酶的必需辅因子。因此，锰在不同细胞器之间的分配在支持代谢过程的锰稳态中起着核心作用。我们报告了一个高尔基体定位的锰转运蛋白(命名为PML3)的鉴定，该转运蛋白对于幼嫩组织(如出芽的叶片和花粉管)的快速细胞伸长是必不可少的。特别是，pml3功能缺失突变体的花粉管缺陷导致了种子产量的严重下降，这是一个关键的农艺性状。进一步的分析表明，花粉管中果胶沉积的丧失可能会导致花粉管破裂并减缓其伸长，从而导致雄性可育性下降。由于高尔基体是细胞壁成分生物合成和修饰的主要枢纽，PML3可能在该细胞器的锰稳态中发挥作用，从而控制快速伸长细胞中果胶沉积所需的代谢和/或运输过程。高尔基体定位的锰转运蛋白对果胶在花粉管细胞壁的沉积是必不可少的，影响花粉管顶端的生长和雄性可育性。
Manganese (Mn) serves as an essential cofactor for many enzymes in various compartments of a plant cell. Allocation of Mn among various organelles thus plays a central role in Mn homeostasis to support metabolic processes. We report the identification of a Golgi-localized Mn transporter (named PML3) that is essential for rapid cell elongation in young tissues such as emerging leaves and the pollen tube. In particular, the pollen tube defect in the pml3 loss-of-function mutant caused severe reduction in seed yield, a critical agronomic trait. Further analysis suggested that a loss of pectin deposition in the pollen tube might cause the pollen tube to burst and slow its elongation, leading to decreased male fertility. As the Golgi apparatus serves as the major hub for biosynthesis and modification of cell-wall components, PML3 may function in Mn homeostasis of this organelle, thereby controlling metabolic and/or trafficking processes required for pectin deposition in rapidly elongating cells. A Golgi-localized Mn transporter is essential for pectin deposition in the cell wall of the pollen tube, affecting tip growth and male fertility.
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影响因子：
7.4
作者：
Eroglu, Seckin;Meier, Bastian;Peiter, Edgar
通讯作者：
Peiter, Edgar
影响因子：
6.9
作者：
Milner MJ;Seamon J;Craft E;Kochian LV
通讯作者：
Kochian LV
拟南芥花粉管完整性和精子释放受 RALF 介导的信号调节
DOI：
10.1126/science.aao3642
发表时间：
2017-12-22
期刊：
Science (New York, N.Y.)
影响因子：
--
作者：
Ge Z;Bergonci T;Zhao Y;Zou Y;Du S;Liu MC;Luo X;Ruan H;García-Valencia LE;Zhong S;Hou S;Huang Q;Lai L;Moura DS;Gu H;Dong J;Wu HM;Dresselhaus T;Xiao J;Cheung AY;Qu LJ
通讯作者：
Qu LJ
影响因子：
7.4
作者：
Lanquar, Viviane;Ramos, Magali Schnell;Thomine, Sebastien
通讯作者：
Thomine, Sebastien
影响因子：
7.4
作者：
Dardelle, Flavien;Lehner, Arnaud;Mollet, Jean-Claude
通讯作者：
Mollet, Jean-Claude