Subcellular positioning during cell division and cell plate formation in maize

被引：4

作者：

Allsman, Lindy A. ^{[1
]}

Bellinger, Marschal A. ^{[1
]}

Huang, Vivian ^{[1
]}

Duong, Matthew ^{[1
]}

Contreras, Alondra ^{[1
]}

Romero, Andrea N. ^{[1
]}

Verboonen, Benjamin ^{[1
]}

Sidhu, Sukhmani ^{[1
]}

Zhang, Xiaoguo ^{[2
]}

Steinkraus, Holly ^{[2
]}

Uyehara, Aimee N. ^{[1
]}

Martinez, Stephanie E. ^{[1
]}

Sinclair, Rosalie M. ^{[3
]}

Soriano, Gabriela Salazar ^{[1
]}

Diep, Beatrice ^{[1
]}

Byrd, V. Dawson ^{[1
]}

Noriega, Alexander ^{[1
]}

Drakakaki, Georgia ^{[3
]}

Sylvester, Anne W. ^{[2
]}

Rasmussen, Carolyn G. ^{[1
]}

机构：

[1] Univ Calif Riverside, Ctr Plant Cell Biol, Dept Bot & Plant Sci, Riverside, CA 92507 USA

[2] Univ Wyoming, Dept Mol Biol, Laramie, WY USA

[3] Univ Calif Davis, Dept Plant Sci, Davis, CA USA

来源：

FRONTIERS IN PLANT SCIENCE | 2023年 / 14卷

基金：

美国食品与农业研究所; 美国国家科学基金会;

关键词：

mitosis; maize; cell plate; phragmoplast; microtubule; PROTEIN DISULFIDE-ISOMERASE; ROOT-TIP CELLS; ENDOPLASMIC-RETICULUM; MICROTUBULE DYNAMICS; ARABIDOPSIS KNOLLE; PLANT CYTOKINESIS; FUNCTIONAL GENOMICS; CALLOSE SYNTHASE; ORGANIZATION; MITOSIS;

D O I：

10.3389/fpls.2023.1204889

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

IntroductionDuring proliferative plant cell division, the new cell wall, called the cell plate, is first built in the middle of the cell and then expands outward to complete cytokinesis. This dynamic process requires coordinated movement and arrangement of the cytoskeleton and organelles. MethodsHere we use live-cell markers to track the dynamic reorganization of microtubules, nuclei, endoplasmic reticulum, and endomembrane compartments during division and the formation of the cell plate in maize leaf epidermal cells. ResultsThe microtubule plus-end localized protein END BINDING1 (EB1) highlighted increasing microtubule dynamicity during mitosis to support rapid changes in microtubule structures. The localization of the cell-plate specific syntaxin KNOLLE, several RAB-GTPases, as well as two plasma membrane localized proteins was assessed after treatment with the cytokinesis-specific callose-deposition inhibitor Endosidin7 (ES7) and the microtubule-disrupting herbicide chlorpropham (CIPC). While ES7 caused cell plate defects in Arabidopsis thaliana, it did not alter callose accumulation, or disrupt cell plate formation in maize. In contrast, CIPC treatment of maize epidermal cells occasionally produced irregular cell plates that split or fragmented, but did not otherwise disrupt the accumulation of cell-plate localized proteins. DiscussionTogether, these markers provide a robust suite of tools to examine subcellular trafficking and organellar organization during mitosis and cell plate formation in maize.

引用

页数：16

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