Jasmonoyl isoleucine accumulation is needed for abscisic acid build-up in roots of Arabidopsis under water stress conditions

Plant, Cell & Environment
Carlos de OllasAurelio Gómez-Cadenas

Abstract

Phytohormones are central players in sensing and signalling numerous environmental conditions like drought. In this work, hormone profiling together with gene expression of key enzymes involved in abscisic acid (ABA) and jasmonate biosynthesis were studied in desiccating Arabidopsis roots. Jasmonic acid (JA) content transiently increased after stress imposition whereas progressive and concomitant ABA and Jasmonoyl Isoleucine (JA-Ile) accumulations were detected. Molecular data suggest that, at least, part of the hormonal regulation takes place at the biosynthetic level. These observations also point to a possible involvement of jasmonates on ABA biosynthesis under stress. To test this hypothesis, mutants impaired in jasmonate biosynthesis (opr3, lox6 and jar1-1) and in JA-dependent signalling (coi1) were employed. Results showed that the early JA accumulation leading to JA-Ile build up was necessary for an ABA increase in roots under two different water stress conditions. Signal transduction between water stress-induced JA-Ile accumulation and COI1 is necessary for a full induction of the ABA biosynthesis pathway and subsequent hormone accumulation in roots of Arabidopsis plants. The present work adds a level of interaction bet...Continue Reading

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Citations

Feb 14, 2016·Journal of Experimental Botany·Anuja DaveIan A Graham
Sep 5, 2015·Plant Signaling & Behavior·Carlos de OllasAurelio Gómez-Cadenas
Feb 3, 2016·Trends in Plant Science·Nicole M van Dam, Harro J Bouwmeester
Oct 30, 2015·Plant, Cell & Environment·Quancan HouDorothea Bartels
Jun 15, 2016·Plant Molecular Biology·Carlos de Ollas, Ian C Dodd
Oct 9, 2016·Plant Science : an International Journal of Experimental Plant Biology·Matías ManziAurelio Gómez-Cadenas
Feb 13, 2018·Journal of Experimental Botany·Carlos De OllasIan C Dodd
Mar 22, 2018·Journal of Experimental Botany·Ulrike BechtoldPhilip M Mullineaux
Jan 10, 2018·Frontiers in Plant Science·Jie FuLizhong Xiong
May 31, 2019·The Plant Journal : for Cell and Molecular Biology·Maria C RubioManuel Becana
Dec 19, 2019·Journal of Integrative Plant Biology·Kong ChenYang Zhao
Jan 23, 2020·Journal of Experimental Botany·Marieke Dubois, Dirk Inzé
Mar 21, 2020·Cellular and Molecular Life Sciences : CMLS·Javier Agustí, Miguel A Blázquez
Nov 17, 2019·Doklady Biological Sciences : Proceedings of the Academy of Sciences of the USSR, Biological Sciences Sections·M V EfimovaV V Kuznetsov
Apr 24, 2020·BMC Plant Biology·Astrid WinglerSergi Munné-Bosch
Dec 20, 2018·International Journal of Molecular Sciences·Yan Lu, Jian Yao
Dec 16, 2019·Environmental Science and Pollution Research International·Clémentine LapiePierre Leglize
Aug 25, 2018·Scientific Reports·Albert Gargallo-GarrigaJosep Peñuelas
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Oct 10, 2020·Plant Cell Reports·Ali RazaMirza Hasanuzzaman
Nov 8, 2020·International Journal of Molecular Sciences·Vishvanathan MarthandanJegadeesan Ramalingam
Mar 9, 2021·Plant Physiology and Biochemistry : PPB·Ajit Pal SinghJitender Giri
Mar 23, 2021·Plant Cell Reports·Prafull SalviMehanathan Muthamilarasan
Apr 7, 2021·Plant Cell Reports·Mouna GhorbelMarco Landi
Oct 7, 2021·Journal of Agricultural and Food Chemistry·Noemi HemelíkováVáclav Mik

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