Hardening with salicylic acid induces concentration-dependent changes in abscisic acid biosynthesis of tomato under salt stress

E. Horváth, J. Csiszár, Ágnes Gallé, Péter Poór, Ágnes Szepesi, I. Tari

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The role of salicylic acid (SA) in the control of abscisic acid (ABA) biosynthesis is controversial although both plant growth regulators may accumulate in tissues under abiotic and biotic stress conditions. Hardening of tomato plants to salinity stress with 10-4M SA ("high SA") resulted in an up-regulation of ABA biosynthesis genes, zeaxanthin epoxidase (SlZEP1), 9-cis-epoxycarotenoid dioxygenase (SlNCED1) and aldehyde oxidases (SlAO1and SlAO2) in the roots and led to ABA accumulation both in root and leaf tissues. In plants pre-treated with lower concentration of SA (10-7M, "low SA"), the up-regulation of SlNCED1 in the roots promoted ABA accumulation in the root tissues but the hormone concentration remained at control level in the leaves. Salt stress induced by 100mM NaCl reduced the transcript abundance of ABA biosynthetic genes and inhibited SlAO activity in plants hardened with "high SA", but the tissues maintained root ABA level over the untreated control. The combined effect of "high SA" and ABA under salt stress led to partially recovered photosynthetic activity, reduced ethylene production in root apices, and restored root growth, which is one of the main features of salt tolerance. Unlike "high SA", hardening with "low SA" had no influence on ethylene production, and led to reduced elongation of roots in plants exposed to 100mM NaCl. The up-regulation of carotenoid cleavage dioxygenases SlCCD1A and SlCCD1B by SA, which produce apocarotenoids, may open new pathways in SA sensing and signalling processes.

Original languageEnglish
Pages (from-to)54-63
Number of pages10
JournalJournal of Plant Physiology
Volume183
DOIs
Publication statusPublished - Jul 1 2015

Fingerprint

Abscisic Acid
Salicylic Acid
Lycopersicon esculentum
salicylic acid
salt stress
abscisic acid
Salts
tomatoes
biosynthesis
9-cis-epoxy-carotenoid dioxygenase
Up-Regulation
ethylene production
root growth
Aldehyde Oxidase
Salt-Tolerance
Dioxygenases
Plant Roots
Plant Growth Regulators
Salinity
Carotenoids

Keywords

  • Abscisic acid biosynthesis
  • Carotenoid cleavage dioxygenases
  • Ethylene production
  • Salicylic acid
  • Salt stress
  • Tomato

ASJC Scopus subject areas

  • Plant Science
  • Physiology
  • Agronomy and Crop Science

Cite this

Hardening with salicylic acid induces concentration-dependent changes in abscisic acid biosynthesis of tomato under salt stress. / Horváth, E.; Csiszár, J.; Gallé, Ágnes; Poór, Péter; Szepesi, Ágnes; Tari, I.

In: Journal of Plant Physiology, Vol. 183, 01.07.2015, p. 54-63.

Research output: Contribution to journalArticle

@article{ecb8bba17ca74e0884ebee36f8119835,
title = "Hardening with salicylic acid induces concentration-dependent changes in abscisic acid biosynthesis of tomato under salt stress",
abstract = "The role of salicylic acid (SA) in the control of abscisic acid (ABA) biosynthesis is controversial although both plant growth regulators may accumulate in tissues under abiotic and biotic stress conditions. Hardening of tomato plants to salinity stress with 10-4M SA ({"}high SA{"}) resulted in an up-regulation of ABA biosynthesis genes, zeaxanthin epoxidase (SlZEP1), 9-cis-epoxycarotenoid dioxygenase (SlNCED1) and aldehyde oxidases (SlAO1and SlAO2) in the roots and led to ABA accumulation both in root and leaf tissues. In plants pre-treated with lower concentration of SA (10-7M, {"}low SA{"}), the up-regulation of SlNCED1 in the roots promoted ABA accumulation in the root tissues but the hormone concentration remained at control level in the leaves. Salt stress induced by 100mM NaCl reduced the transcript abundance of ABA biosynthetic genes and inhibited SlAO activity in plants hardened with {"}high SA{"}, but the tissues maintained root ABA level over the untreated control. The combined effect of {"}high SA{"} and ABA under salt stress led to partially recovered photosynthetic activity, reduced ethylene production in root apices, and restored root growth, which is one of the main features of salt tolerance. Unlike {"}high SA{"}, hardening with {"}low SA{"} had no influence on ethylene production, and led to reduced elongation of roots in plants exposed to 100mM NaCl. The up-regulation of carotenoid cleavage dioxygenases SlCCD1A and SlCCD1B by SA, which produce apocarotenoids, may open new pathways in SA sensing and signalling processes.",
keywords = "Abscisic acid biosynthesis, Carotenoid cleavage dioxygenases, Ethylene production, Salicylic acid, Salt stress, Tomato",
author = "E. Horv{\'a}th and J. Csisz{\'a}r and {\'A}gnes Gall{\'e} and P{\'e}ter Po{\'o}r and {\'A}gnes Szepesi and I. Tari",
year = "2015",
month = "7",
day = "1",
doi = "10.1016/j.jplph.2015.05.010",
language = "English",
volume = "183",
pages = "54--63",
journal = "Journal of Plant Physiology",
issn = "0176-1617",
publisher = "Urban und Fischer Verlag GmbH und Co. KG",

}

TY - JOUR

T1 - Hardening with salicylic acid induces concentration-dependent changes in abscisic acid biosynthesis of tomato under salt stress

AU - Horváth, E.

AU - Csiszár, J.

AU - Gallé, Ágnes

AU - Poór, Péter

AU - Szepesi, Ágnes

AU - Tari, I.

PY - 2015/7/1

Y1 - 2015/7/1

N2 - The role of salicylic acid (SA) in the control of abscisic acid (ABA) biosynthesis is controversial although both plant growth regulators may accumulate in tissues under abiotic and biotic stress conditions. Hardening of tomato plants to salinity stress with 10-4M SA ("high SA") resulted in an up-regulation of ABA biosynthesis genes, zeaxanthin epoxidase (SlZEP1), 9-cis-epoxycarotenoid dioxygenase (SlNCED1) and aldehyde oxidases (SlAO1and SlAO2) in the roots and led to ABA accumulation both in root and leaf tissues. In plants pre-treated with lower concentration of SA (10-7M, "low SA"), the up-regulation of SlNCED1 in the roots promoted ABA accumulation in the root tissues but the hormone concentration remained at control level in the leaves. Salt stress induced by 100mM NaCl reduced the transcript abundance of ABA biosynthetic genes and inhibited SlAO activity in plants hardened with "high SA", but the tissues maintained root ABA level over the untreated control. The combined effect of "high SA" and ABA under salt stress led to partially recovered photosynthetic activity, reduced ethylene production in root apices, and restored root growth, which is one of the main features of salt tolerance. Unlike "high SA", hardening with "low SA" had no influence on ethylene production, and led to reduced elongation of roots in plants exposed to 100mM NaCl. The up-regulation of carotenoid cleavage dioxygenases SlCCD1A and SlCCD1B by SA, which produce apocarotenoids, may open new pathways in SA sensing and signalling processes.

AB - The role of salicylic acid (SA) in the control of abscisic acid (ABA) biosynthesis is controversial although both plant growth regulators may accumulate in tissues under abiotic and biotic stress conditions. Hardening of tomato plants to salinity stress with 10-4M SA ("high SA") resulted in an up-regulation of ABA biosynthesis genes, zeaxanthin epoxidase (SlZEP1), 9-cis-epoxycarotenoid dioxygenase (SlNCED1) and aldehyde oxidases (SlAO1and SlAO2) in the roots and led to ABA accumulation both in root and leaf tissues. In plants pre-treated with lower concentration of SA (10-7M, "low SA"), the up-regulation of SlNCED1 in the roots promoted ABA accumulation in the root tissues but the hormone concentration remained at control level in the leaves. Salt stress induced by 100mM NaCl reduced the transcript abundance of ABA biosynthetic genes and inhibited SlAO activity in plants hardened with "high SA", but the tissues maintained root ABA level over the untreated control. The combined effect of "high SA" and ABA under salt stress led to partially recovered photosynthetic activity, reduced ethylene production in root apices, and restored root growth, which is one of the main features of salt tolerance. Unlike "high SA", hardening with "low SA" had no influence on ethylene production, and led to reduced elongation of roots in plants exposed to 100mM NaCl. The up-regulation of carotenoid cleavage dioxygenases SlCCD1A and SlCCD1B by SA, which produce apocarotenoids, may open new pathways in SA sensing and signalling processes.

KW - Abscisic acid biosynthesis

KW - Carotenoid cleavage dioxygenases

KW - Ethylene production

KW - Salicylic acid

KW - Salt stress

KW - Tomato

UR - http://www.scopus.com/inward/record.url?scp=84931275549&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84931275549&partnerID=8YFLogxK

U2 - 10.1016/j.jplph.2015.05.010

DO - 10.1016/j.jplph.2015.05.010

M3 - Article

VL - 183

SP - 54

EP - 63

JO - Journal of Plant Physiology

JF - Journal of Plant Physiology

SN - 0176-1617

ER -