Cell wall remodeling and vesicle trafficking mediate the root clock in <em>Arabidopsis</em>

doi:10.1126/science.abb7250

GSTDTAP > 气候变化

DOI	10.1126/science.abb7250
	Cell wall remodeling and vesicle trafficking mediate the root clock in Arabidopsis
	Guy Wachsman; Jingyuan Zhang; Miguel A. Moreno-Risueno; Charles T. Anderson; Philip N. Benfey
	2020-11-13
发表期刊	Science
出版年	2020
英文摘要	Lateral roots form at regular intervals in the small mustard plant Arabidopsis thaliana . Wachsman et al. have now identified both pectin and subcellular vesicle trafficking as part of the oscillating signaling system that initiates lateral roots. Esterification of pectin regulates its function at the nascent lateral root site, altering the stiffness of cell walls and the strength of cell-cell adhesion. Because lateral root primordia must push through overlying cell layers, reduced cell adhesion at these sites might aid in the formation of lateral roots. Science , this issue p. [819][1] In Arabidopsis thaliana , lateral roots initiate in a process preceded by periodic gene expression known as the root clock. We identified the vesicle-trafficking regulator GNOM and its suppressor, ADENOSINE PHOSPHATE RIBOSYLATION FACTOR GTPase ACTIVATION PROTEIN DOMAIN3, as root clock regulators. GNOM is required for the proper distribution of pectin, a mediator of intercellular adhesion, whereas the pectin esterification state is essential for a functional root clock. In sites of lateral root primordia emergence, both esterified and de-esterified pectin variants are differentially distributed. Using a reverse-genetics approach, we show that genes controlling pectin esterification regulate the root clock and lateral root initiation. These results indicate that the balance between esterified and de-esterified pectin states is essential for proper root clock function and the subsequent initiation of lateral root primordia. [1]: /lookup/doi/10.1126/science.abb7250
领域	气候变化 ; 资源环境
URL	查看原文
引用统计	被引频次：56[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/304136
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Guy Wachsman,Jingyuan Zhang,Miguel A. Moreno-Risueno,et al. Cell wall remodeling and vesicle trafficking mediate the root clock in Arabidopsis[J]. Science,2020.
APA	Guy Wachsman,Jingyuan Zhang,Miguel A. Moreno-Risueno,Charles T. Anderson,&Philip N. Benfey.(2020).Cell wall remodeling and vesicle trafficking mediate the root clock in Arabidopsis.Science.
MLA	Guy Wachsman,et al."Cell wall remodeling and vesicle trafficking mediate the root clock in Arabidopsis".Science (2020).