Differential Response of Two Tomato Genotypes, Wild Type cv. Ailsa Craig and Its ABA-Deficient Mutant <i>flacca</i> to Short-Termed Drought Cycles

Two tomato genotypes with constitutively different ABA level, <i>flacca</i> mutant and wild type of Ailsa Craig cv. (WT), were subjected to three repeated drought cycles, with the aim to reveal the role of the abscisic acid (ABA) threshold in developing drought tolerance. Differential re...

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Autores principales:	Bojana Živanović, Sonja Milić Komić, Nenad Nikolić, Dragosav Mutavdžić, Tatjana Srećković, Sonja Veljović Jovanović, Ljiljana Prokić
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	abscisic acid drought recovery period cell wall constituents stress memory tomato mutants Botany QK1-989
Acceso en línea:	https://doaj.org/article/d256283f5b6b4cd19c1466e629ef6eab
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spelling	oai:doaj.org-article:d256283f5b6b4cd19c1466e629ef6eab2021-11-25T18:45:07ZDifferential Response of Two Tomato Genotypes, Wild Type cv. Ailsa Craig and Its ABA-Deficient Mutant <i>flacca</i> to Short-Termed Drought Cycles10.3390/plants101123082223-7747https://doaj.org/article/d256283f5b6b4cd19c1466e629ef6eab2021-10-01T00:00:00Zhttps://www.mdpi.com/2223-7747/10/11/2308https://doaj.org/toc/2223-7747Two tomato genotypes with constitutively different ABA level, <i>flacca</i> mutant and wild type of Ailsa Craig cv. (WT), were subjected to three repeated drought cycles, with the aim to reveal the role of the abscisic acid (ABA) threshold in developing drought tolerance. Differential responses to drought of two genotypes were obtained: more pronounced stomatal closure, ABA biosynthesis and proline accumulation in WT compared to the mutant were compensated by dry weight accumulation accompanied by transient redox disbalance in <i>flacca</i>. Fourier-transform infrared (FTIR) spectra analysis of isolated cell wall material and morphological parameter measurements on tomato leaves indicated changes in dry weight accumulation and carbon re-allocation to cell wall constituents in <i>flacca</i>, but not in WT. A higher proportion of cellulose, pectin and lignin in isolated cell walls from <i>flacca</i> leaves further increased with repeated drought cycles. Different ABA-dependent stomatal closure between drought cycles implies that acquisition of stomatal sensitivity may be a part of stress memory mechanism developed under given conditions. The regulatory role of ABA in the cell wall restructuring and growth regulation under low leaf potential was discussed with emphasis on the beneficial effects of drought priming in developing differential defense strategies against drought.Bojana ŽivanovićSonja Milić KomićNenad NikolićDragosav MutavdžićTatjana SrećkovićSonja Veljović JovanovićLjiljana ProkićMDPI AGarticleabscisic aciddroughtrecovery periodcell wall constituentsstress memorytomato mutantsBotanyQK1-989ENPlants, Vol 10, Iss 2308, p 2308 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	abscisic acid drought recovery period cell wall constituents stress memory tomato mutants Botany QK1-989
spellingShingle	abscisic acid drought recovery period cell wall constituents stress memory tomato mutants Botany QK1-989 Bojana Živanović Sonja Milić Komić Nenad Nikolić Dragosav Mutavdžić Tatjana Srećković Sonja Veljović Jovanović Ljiljana Prokić Differential Response of Two Tomato Genotypes, Wild Type cv. Ailsa Craig and Its ABA-Deficient Mutant <i>flacca</i> to Short-Termed Drought Cycles
description	Two tomato genotypes with constitutively different ABA level, <i>flacca</i> mutant and wild type of Ailsa Craig cv. (WT), were subjected to three repeated drought cycles, with the aim to reveal the role of the abscisic acid (ABA) threshold in developing drought tolerance. Differential responses to drought of two genotypes were obtained: more pronounced stomatal closure, ABA biosynthesis and proline accumulation in WT compared to the mutant were compensated by dry weight accumulation accompanied by transient redox disbalance in <i>flacca</i>. Fourier-transform infrared (FTIR) spectra analysis of isolated cell wall material and morphological parameter measurements on tomato leaves indicated changes in dry weight accumulation and carbon re-allocation to cell wall constituents in <i>flacca</i>, but not in WT. A higher proportion of cellulose, pectin and lignin in isolated cell walls from <i>flacca</i> leaves further increased with repeated drought cycles. Different ABA-dependent stomatal closure between drought cycles implies that acquisition of stomatal sensitivity may be a part of stress memory mechanism developed under given conditions. The regulatory role of ABA in the cell wall restructuring and growth regulation under low leaf potential was discussed with emphasis on the beneficial effects of drought priming in developing differential defense strategies against drought.
format	article
author	Bojana Živanović Sonja Milić Komić Nenad Nikolić Dragosav Mutavdžić Tatjana Srećković Sonja Veljović Jovanović Ljiljana Prokić
author_facet	Bojana Živanović Sonja Milić Komić Nenad Nikolić Dragosav Mutavdžić Tatjana Srećković Sonja Veljović Jovanović Ljiljana Prokić
author_sort	Bojana Živanović
title	Differential Response of Two Tomato Genotypes, Wild Type cv. Ailsa Craig and Its ABA-Deficient Mutant <i>flacca</i> to Short-Termed Drought Cycles
title_short	Differential Response of Two Tomato Genotypes, Wild Type cv. Ailsa Craig and Its ABA-Deficient Mutant <i>flacca</i> to Short-Termed Drought Cycles
title_full	Differential Response of Two Tomato Genotypes, Wild Type cv. Ailsa Craig and Its ABA-Deficient Mutant <i>flacca</i> to Short-Termed Drought Cycles
title_fullStr	Differential Response of Two Tomato Genotypes, Wild Type cv. Ailsa Craig and Its ABA-Deficient Mutant <i>flacca</i> to Short-Termed Drought Cycles
title_full_unstemmed	Differential Response of Two Tomato Genotypes, Wild Type cv. Ailsa Craig and Its ABA-Deficient Mutant <i>flacca</i> to Short-Termed Drought Cycles
title_sort	differential response of two tomato genotypes, wild type cv. ailsa craig and its aba-deficient mutant <i>flacca</i> to short-termed drought cycles
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d256283f5b6b4cd19c1466e629ef6eab
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Differential Response of Two Tomato Genotypes, Wild Type cv. Ailsa Craig and Its ABA-Deficient Mutant <i>flacca</i> to Short-Termed Drought Cycles

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