Rice kinesin-related protein STD1 and microtubule-associated protein MAP65-5 cooperatively control microtubule bundling

文献类型： 外文期刊

第一作者： Fang, Jingjing

作者： Fang, Jingjing;Chun, Yan;Ren, Mengmeng;Zhao, Jinfeng;Li, Xueyong;Guo, Tingting

作者机构：

关键词： Cell division; Kinesin; Microtubule-associated proteins; Microtubule bundling; Phragmoplast

期刊名称：PLANTA （ 影响因子：4.3； 五年影响因子：4.8 ）

ISSN： 0032-0935

年卷期： 2023 年 257 卷 4 期

页码：

收录情况： SCI

摘要： Main conclusionsSTD1 specifically interacts with MAP65-5 in rice and they cooperatively control microtubule bundles in phragmoplast expansion during cell division.Microtubules play critical roles during the cell cycle progression in the plant cell. We previously reported that STEMLESS DWARF 1 (STD1), a kinesin-related protein, was localized specifically to the phragmoplast midzone during telophase to regulate the lateral expansion of phragmoplast in rice (Oryza sativa). However, how STD1 regulates microtubule organization remains unknown. Here, we found that STD1 interacted directly with MAP65-5, a member of the microtubule-associated proteins (MAPs). Both STD1 and MAP65-5 could form homodimers and bundle microtubules individually. Compared with MAP65-5, the microtubules bundled by STD1 were disassembled completely into single microtubules after adding ATP. Conversely, the interaction of STD1 with MAP65-5 enhanced the microtubule bundling. These results suggest STD1 and MAP65-5 might cooperatively regulate microtubule organization in the phragmoplast at telophase.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序