Two tomato genotypes with constitutively different ABA level, flacca 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 flacca. 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 flacca, but not in WT. A higher proportion of cellulose, pectin and lignin in isolated cell walls from flacca leaves further increased with repeated drought cycles. Different ABA-dependent stomatal closure between drought cycle...s 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.
TY - JOUR
AU - Živanović, Bojana
AU - Milić Komić, Sonja
AU - Nikolić, Nenad
AU - Mutavdžić, Dragosav
AU - Srećković, Tatjana
AU - Veljović-Jovanović, Sonja
AU - Prokic, Ljiljana
PY - 2021
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1509
AB - Two tomato genotypes with constitutively different ABA level, flacca 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 flacca. 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 flacca, but not in WT. A higher proportion of cellulose, pectin and lignin in isolated cell walls from flacca 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.
PB - MDPI, Basel
T2 - Plants-Basel
T1 - Differential Response of Two Tomato Genotypes, Wild Type cv. Ailsa Craig and Its ABA-Deficient Mutant flacca to Short-Termed Drought Cycles
IS - 11
VL - 10
DO - 10.3390/plants10112308
ER -
@article{
author = "Živanović, Bojana and Milić Komić, Sonja and Nikolić, Nenad and Mutavdžić, Dragosav and Srećković, Tatjana and Veljović-Jovanović, Sonja and Prokic, Ljiljana",
year = "2021",
abstract = "Two tomato genotypes with constitutively different ABA level, flacca 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 flacca. 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 flacca, but not in WT. A higher proportion of cellulose, pectin and lignin in isolated cell walls from flacca 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.",
publisher = "MDPI, Basel",
journal = "Plants-Basel",
title = "Differential Response of Two Tomato Genotypes, Wild Type cv. Ailsa Craig and Its ABA-Deficient Mutant flacca to Short-Termed Drought Cycles",
number = "11",
volume = "10",
doi = "10.3390/plants10112308"
}
Živanović, B., Milić Komić, S., Nikolić, N., Mutavdžić, D., Srećković, T., Veljović-Jovanović, S.,& Prokic, L.. (2021). Differential Response of Two Tomato Genotypes, Wild Type cv. Ailsa Craig and Its ABA-Deficient Mutant flacca to Short-Termed Drought Cycles. in Plants-Basel
MDPI, Basel., 10(11).
https://doi.org/10.3390/plants10112308
Živanović B, Milić Komić S, Nikolić N, Mutavdžić D, Srećković T, Veljović-Jovanović S, Prokic L. Differential Response of Two Tomato Genotypes, Wild Type cv. Ailsa Craig and Its ABA-Deficient Mutant flacca to Short-Termed Drought Cycles. in Plants-Basel. 2021;10(11).
doi:10.3390/plants10112308 .
Živanović, Bojana, Milić Komić, Sonja, Nikolić, Nenad, Mutavdžić, Dragosav, Srećković, Tatjana, Veljović-Jovanović, Sonja, Prokic, Ljiljana, "Differential Response of Two Tomato Genotypes, Wild Type cv. Ailsa Craig and Its ABA-Deficient Mutant flacca to Short-Termed Drought Cycles" in Plants-Basel, 10, no. 11 (2021),
https://doi.org/10.3390/plants10112308 . .
