Maternal auxin supply contributes to early embryo patterning in Arabidopsis.

Nature Plants
Hélène S RobertThomas Laux

Abstract

The angiosperm seed is composed of three genetically distinct tissues: the diploid embryo that originates from the fertilized egg cell, the triploid endosperm that is produced from the fertilized central cell, and the maternal sporophytic integuments that develop into the seed coat1. At the onset of embryo development in Arabidopsis thaliana, the zygote divides asymmetrically, producing a small apical embryonic cell and a larger basal cell that connects the embryo to the maternal tissue2. The coordinated and synchronous development of the embryo and the surrounding integuments, and the alignment of their growth axes, suggest communication between maternal tissues and the embryo. In contrast to animals, however, where a network of maternal factors that direct embryo patterning have been identified3,4, only a few maternal mutations have been described to affect embryo development in plants5-7. Early embryo patterning in Arabidopsis requires accumulation of the phytohormone auxin in the apical cell by directed transport from the suspensor8-10. However, the origin of this auxin has remained obscure. Here we investigate the source of auxin for early embryogenesis and provide evidence that the mother plant coordinates seed developmen...Continue Reading

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Citations

Feb 5, 2019·Journal of Experimental Botany·Charitha P A JayasinghegeDennis M Reinecke
Feb 15, 2019·Plant Reproduction·Peng GaoRaju Datla
Nov 27, 2018·Journal of Integrative Plant Biology·Neil J ShirleyMatthew R Tucker
Feb 23, 2020·International Journal of Molecular Sciences·Anna M WójcikMałgorzata D Gaj
Mar 4, 2020·International Journal of Molecular Sciences·Jinshan CaoYouning Wang
Oct 16, 2019·Frontiers in Plant Science·Yolanda Pérez-PérezPilar S Testillano
Aug 17, 2019·Frontiers in Plant Science·Marta ZwiewkaTomasz Nodzyński
Oct 23, 2019·Biomolecules·Eduardo Mateo-BonmatíKarin Ljung
Feb 24, 2019·International Journal of Molecular Sciences·Hélène S Robert
Aug 4, 2019·Nature Communications·Ce ShiMeng-Xiang Sun
Jun 15, 2019·Journal of Experimental Botany·Joshua J BlakesleeVerena Kriechbaumer
Dec 11, 2019·International Journal of Molecular Sciences·Abu Imran BabaÁgnes Cséplő
Aug 29, 2019·The New Phytologist·Anthoni PellizzaroJulia Buitink
Jul 16, 2020·Nature Communications·Jing ZhangJiří Friml
Oct 13, 2020·The Biochemical Journal·Ran TianSharyn E Perry
Sep 18, 2020·Journal of Experimental Botany·Joanna RojekMałgorzata Gutkowska
Dec 2, 2020·The Plant Journal : for Cell and Molecular Biology·Pengcheng LiXingjun Wang
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Jan 13, 2021·Cold Spring Harbor Perspectives in Biology·Rubén Casanova-SáezKarin Ljung
Feb 20, 2021·Proceedings of the National Academy of Sciences of the United States of America·Jing NieXiaolei Sui
Mar 27, 2021·Plant Physiology·Claus SchwechheimerViktor Žárský
Mar 23, 2021·Horticulture Research·Huibin WangLingfei Xu
Jan 13, 2021·Cold Spring Harbor Perspectives in Biology·Subodh VermaHélène S Robert
Mar 19, 2021·Plant Physiology·Madhumitha NarasimhanJiří Friml
May 4, 2021·Frontiers in Plant Science·Daniel HicklTorsten Möhlmann
Feb 20, 2021·Annual Review of Plant Biology·Thomas Dresselhaus, Gerd Jürgens

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Datasets Mentioned

BETA
N2105637

Methods Mentioned

BETA
PCR
fluorescence microscopy
dissection

Software Mentioned

GraphPad InStat
AxioVisionLE

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