Effect of abscisic acid and epibrassinolide on physiological and hormonal responses of tomato plants subjected to water stress

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F25%3A00639797" target="_blank" >RIV/61389030:_____/25:00639797 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62690094:18470/25:50022733

Výsledek na webu

<a href="https://doi.org/10.17221/151/2025-PSE" target="_blank" >https://doi.org/10.17221/151/2025-PSE</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/151/2025-PSE" target="_blank" >10.17221/151/2025-PSE</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of abscisic acid and epibrassinolide on physiological and hormonal responses of tomato plants subjected to water stress

Popis výsledku v původním jazyce

In this study, the effect of abscisic acid (ABA, 150 mu mol) or epibrassinolide (EBL, 3 mu mol) in mitigating the adverse drought conditions was evaluated in tomato plants (Solanum lycopersicum L. cv. Vilma). Potted plants were subjected to two 6-day periods separated by a one-time rehydration. Results showed that water deficit increased the content of superoxide radical (O2 center dot-), malondialdehyde (MDA), proline, ABA and its metabolites. On the other hand, the studied cytokinins showed a rather opposite trend. ABA application maintained and later reduced the O2 center dot- content. At the same time, the MDA level was lower but later increased, while the proline content was reduced compared to untreated plants. This indicates that ABA helps the plants cope with the initial stress phase. In addition, ABA-activated signalling pathways showed increased levels of ABA, auxins, salicylic acid or jasmonic acid. EBL even more increased O2 center dot- and proline content. At the same time, EBL increased the content of auxins, jasmonic acid and later ABA. In contrast, a decrease in salicylic acid and cytokinins was monitored. These findings indicate that ABA contributed to improved stress responses through early phytohormone-mediated signalling and reduction of stress markers, whereas EBL appeared less effective under our experimental conditions.

Název v anglickém jazyce

Effect of abscisic acid and epibrassinolide on physiological and hormonal responses of tomato plants subjected to water stress

Popis výsledku anglicky

In this study, the effect of abscisic acid (ABA, 150 mu mol) or epibrassinolide (EBL, 3 mu mol) in mitigating the adverse drought conditions was evaluated in tomato plants (Solanum lycopersicum L. cv. Vilma). Potted plants were subjected to two 6-day periods separated by a one-time rehydration. Results showed that water deficit increased the content of superoxide radical (O2 center dot-), malondialdehyde (MDA), proline, ABA and its metabolites. On the other hand, the studied cytokinins showed a rather opposite trend. ABA application maintained and later reduced the O2 center dot- content. At the same time, the MDA level was lower but later increased, while the proline content was reduced compared to untreated plants. This indicates that ABA helps the plants cope with the initial stress phase. In addition, ABA-activated signalling pathways showed increased levels of ABA, auxins, salicylic acid or jasmonic acid. EBL even more increased O2 center dot- and proline content. At the same time, EBL increased the content of auxins, jasmonic acid and later ABA. In contrast, a decrease in salicylic acid and cytokinins was monitored. These findings indicate that ABA contributed to improved stress responses through early phytohormone-mediated signalling and reduction of stress markers, whereas EBL appeared less effective under our experimental conditions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Plant, Soil and Environment

ISSN

1214-1178

e-ISSN

1805-9368

Svazek periodika

71

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

12

Strana od-do

638-649

Kód UT WoS článku

001574196300001

EID výsledku v databázi Scopus

2-s2.0-105018027983