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Cell wall remodeling and vesicle trafficking mediate the root clock in Arabidopsis.

Publication ,  Journal Article
Wachsman, G; Zhang, J; Moreno-Risueno, MA; Anderson, CT; Benfey, PN
Published in: Science (New York, N.Y.)
November 2020

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.

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Published In

Science (New York, N.Y.)

DOI

EISSN

1095-9203

ISSN

0036-8075

Publication Date

November 2020

Volume

370

Issue

6518

Start / End Page

819 / 823

Related Subject Headings

  • Transport Vesicles
  • Plant Roots
  • Pectins
  • NADPH Oxidases
  • Guanine Nucleotide Exchange Factors
  • General Science & Technology
  • Gene Expression Regulation, Plant
  • GTP-Binding Proteins
  • Esterification
  • Cell Wall
 

Citation

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Wachsman, G., Zhang, J., Moreno-Risueno, M. A., Anderson, C. T., & Benfey, P. N. (2020). Cell wall remodeling and vesicle trafficking mediate the root clock in Arabidopsis. Science (New York, N.Y.), 370(6518), 819–823. https://doi.org/10.1126/science.abb7250
Wachsman, Guy, Jingyuan Zhang, Miguel A. Moreno-Risueno, Charles T. Anderson, and Philip N. Benfey. “Cell wall remodeling and vesicle trafficking mediate the root clock in Arabidopsis.Science (New York, N.Y.) 370, no. 6518 (November 2020): 819–23. https://doi.org/10.1126/science.abb7250.
Wachsman G, Zhang J, Moreno-Risueno MA, Anderson CT, Benfey PN. Cell wall remodeling and vesicle trafficking mediate the root clock in Arabidopsis. Science (New York, NY). 2020 Nov;370(6518):819–23.
Wachsman, Guy, et al. “Cell wall remodeling and vesicle trafficking mediate the root clock in Arabidopsis.Science (New York, N.Y.), vol. 370, no. 6518, Nov. 2020, pp. 819–23. Epmc, doi:10.1126/science.abb7250.
Wachsman G, Zhang J, Moreno-Risueno MA, Anderson CT, Benfey PN. Cell wall remodeling and vesicle trafficking mediate the root clock in Arabidopsis. Science (New York, NY). 2020 Nov;370(6518):819–823.
Journal cover image

Published In

Science (New York, N.Y.)

DOI

EISSN

1095-9203

ISSN

0036-8075

Publication Date

November 2020

Volume

370

Issue

6518

Start / End Page

819 / 823

Related Subject Headings

  • Transport Vesicles
  • Plant Roots
  • Pectins
  • NADPH Oxidases
  • Guanine Nucleotide Exchange Factors
  • General Science & Technology
  • Gene Expression Regulation, Plant
  • GTP-Binding Proteins
  • Esterification
  • Cell Wall