Jasmonate signaling controls negative and positive effectors of salt stress tolerance in rice

© The Author(s) 2023. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 74(2023), 10 vom: 19. Mai, Seite 3220-3239
1. Verfasser: Ndecky, Simon (VerfasserIn)
Weitere Verfasser: Nguyen, Trang Hieu, Eiche, Elisabeth, Cognat, Valérie, Pflieger, David, Pawar, Nitin, Betting, Ferdinand, Saha, Somidh, Champion, Antony, Riemann, Michael, Heitz, Thierry
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Jasmonate rice salt stress signaling tolerance transcriptome jasmonic acid 6RI5N05OWW mehr... Oxylipins Abscisic Acid 72S9A8J5GW Cyclopentanes
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520 |a Plant responses to salt exposure involve large reconfigurations of hormonal pathways that orchestrate physiological changes towards tolerance. Jasmonate (JA) hormones are essential to withstand biotic and abiotic assaults, but their roles in salt tolerance remain unclear. Here we describe the dynamics of JA metabolism and signaling in root and leaf tissue of rice, a plant species that is highly exposed and sensitive to salt. Roots activate the JA pathway in an early pulse, while the second leaf displays a biphasic JA response with peaks at 1 h and 3 d post-exposure. Based on higher salt tolerance of a rice JA-deficient mutant (aoc), we examined, through kinetic transcriptome and physiological analysis, the salt-triggered processes that are under JA control. Profound genotype-differential features emerged that could underlie the observed phenotypes. Abscisic acid (ABA) content and ABA-dependent water deprivation responses were impaired in aoc shoots. Moreover, aoc accumulated more Na+ in roots, and less in leaves, with reduced ion translocation correlating with root derepression of the HAK4 Na+ transporter gene. Distinct reactive oxygen species scavengers were also stronger in aoc leaves, along with reduced senescence and chlorophyll catabolism markers. Collectively, our results identify contrasted contributions of JA signaling to different sectors of the salt stress response in rice 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Jasmonate 
650 4 |a rice 
650 4 |a salt stress 
650 4 |a signaling 
650 4 |a tolerance 
650 4 |a transcriptome 
650 7 |a jasmonic acid  |2 NLM 
650 7 |a 6RI5N05OWW  |2 NLM 
650 7 |a Oxylipins  |2 NLM 
650 7 |a Abscisic Acid  |2 NLM 
650 7 |a 72S9A8J5GW  |2 NLM 
650 7 |a Cyclopentanes  |2 NLM 
700 1 |a Nguyen, Trang Hieu  |e verfasserin  |4 aut 
700 1 |a Eiche, Elisabeth  |e verfasserin  |4 aut 
700 1 |a Cognat, Valérie  |e verfasserin  |4 aut 
700 1 |a Pflieger, David  |e verfasserin  |4 aut 
700 1 |a Pawar, Nitin  |e verfasserin  |4 aut 
700 1 |a Betting, Ferdinand  |e verfasserin  |4 aut 
700 1 |a Saha, Somidh  |e verfasserin  |4 aut 
700 1 |a Champion, Antony  |e verfasserin  |4 aut 
700 1 |a Riemann, Michael  |e verfasserin  |4 aut 
700 1 |a Heitz, Thierry  |e verfasserin  |4 aut 
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773 1 8 |g volume:74  |g year:2023  |g number:10  |g day:19  |g month:05  |g pages:3220-3239 
856 4 0 |u http://dx.doi.org/10.1093/jxb/erad086  |3 Volltext 
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