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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
general
PUCHI regulates very long chain fatty acid biosynthesis during lateral root and callus formation
Proceedings of the National Academy of Sciences of the United States of America, Volume 116, No. 28, Year 2019
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Description
Lateral root organogenesis plays an essential role in elaborating plant root system architecture. In Arabidopsis, the AP2 family transcription factor PUCHI controls cell proliferation in lateral root primordia. To identify potential targets of PUCHI, we analyzed a time course transcriptomic dataset of lateral root formation. We report that multiple genes coding for very long chain fatty acid (VLCFA) biosynthesis enzymes are induced during lateral root development in a PUCHI-dependent manner. Significantly, several mutants perturbed in VLCFA biosynthesis show similar lateral root developmental defects as puchi-1. Moreover, puchi-1 roots display the same disorganized callus formation phenotype as VLCFA biosynthesis-deficient mutants when grown on auxin-rich callus-inducing medium. Lipidomic profiling of puchi-1 roots revealed reduced VLCFA content compared with WT. We conclude that PUCHI-regulated VLCFA biosynthesis is part of a pathway controlling cell proliferation during lateral root and callus formation. © 2019 National Academy of Sciences. All rights reserved.
Authors & Co-Authors
Lavenus, Julien
France, Montpellier
Université de Montpellier
United Kingdom, Nottingham
University of Nottingham
Goh, Tatsuaki
Japan, Ikoma
Nara Institute of Science and Technology
Vaissayre, Virginie
France, Montpellier
Université de Montpellier
Lucas, Mikaël
France, Montpellier
Université de Montpellier
Voß, Ute
United Kingdom, Nottingham
University of Nottingham
Gantet, Pascal P.
France, Montpellier
Université de Montpellier
Dussert, S.
France, Montpellier
Université de Montpellier
Fukaki, Hidehiro
Japan, Kobe
Kobe University
Bennett, Malcom J.
United Kingdom, Nottingham
University of Nottingham
Laplaze, Laurent
France, Montpellier
Université de Montpellier
Guyomarc’h, Soazig
France, Montpellier
Université de Montpellier
Statistics
Citations: 34
Authors: 11
Affiliations: 6
Identifiers
Doi:
10.1073/pnas.1906300116
ISSN:
00278424