Please use this identifier to cite or link to this item: https://doi.org/10.1038/s41467-018-04710-x
Title: Rice actin binding protein RMD controls crown root angle in response to external phosphate
Authors: Huang, G
Liang, W
Sturrock, C.J
Pandey, B.K
Giri, J
Mairhofer, S
Wang, D
Muller, L
Tan, H
York, L.M
Yang, J
Song, Y
Kim, Y.-J
Qiao, Y
Xu, J 
Kepinski, S
Bennett, M.J
Zhang, D
Keywords: actin binding protein
complementary DNA
F actin
phosphate
rice morphology determinant protein
unclassified drug
actin
actin binding protein
green fluorescent protein
indoleacetic acid derivative
plant protein
gene expression
growth
phosphate
plant breeding
protein
root system
statolith
topsoil
actin filament
Article
cell organelle
controlled study
gravitropism
nonhuman
plant root cap
rice
root cell
root growth
root system
sedimentation
surface property
chemistry
gravitropism
gravity sensing
metabolism
micro-computed tomography
mutation
Oryza
physiology
plant breeding
plant root
plant seed
temperature
upregulation
Actin Cytoskeleton
Actins
Gravitropism
Gravity Sensing
Green Fluorescent Proteins
Indoleacetic Acids
Microfilament Proteins
Mutation
Oryza
Phosphates
Plant Breeding
Plant Proteins
Plant Roots
Seeds
Temperature
Up-Regulation
X-Ray Microtomography
Issue Date: 2018
Publisher: Nature Publishing Group
Citation: Huang, G, Liang, W, Sturrock, C.J, Pandey, B.K, Giri, J, Mairhofer, S, Wang, D, Muller, L, Tan, H, York, L.M, Yang, J, Song, Y, Kim, Y.-J, Qiao, Y, Xu, J, Kepinski, S, Bennett, M.J, Zhang, D (2018). Rice actin binding protein RMD controls crown root angle in response to external phosphate. Nature Communications 9 (1) : 2346. ScholarBank@NUS Repository. https://doi.org/10.1038/s41467-018-04710-x
Rights: Attribution 4.0 International
Abstract: Root angle has a major impact on acquisition of nutrients like phosphate that accumulate in topsoil and in many species; low phosphate induces shallower root growth as an adaptive response. Identifying genes and mechanisms controlling root angle is therefore of paramount importance to plant breeding. Here we show that the actin-binding protein Rice Morphology Determinant (RMD) controls root growth angle by linking actin filaments and gravity-sensing organelles termed statoliths. RMD is upregulated in response to low external phosphate and mutants lacking of RMD have steeper crown root growth angles that are unresponsive to phosphate levels. RMD protein localizes to the surface of statoliths, and rmd mutants exhibit faster gravitropic response owing to more rapid statoliths movement. We conclude that adaptive changes to root angle in response to external phosphate availability are RMD dependent, providing a potential target for breeders. © 2018 The Author(s).
Source Title: Nature Communications
URI: https://scholarbank.nus.edu.sg/handle/10635/178406
ISSN: 2041-1723
DOI: 10.1038/s41467-018-04710-x
Rights: Attribution 4.0 International
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