Changes in the Endogenous Phytohormone Status of Drought-Stressed Impatiens walleriana Hook. f. Plants Treated with Methyl Jasmonate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F25%3A00616660" target="_blank" >RIV/61389030:_____/25:00616660 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/s00344-024-11541-2" target="_blank" >https://doi.org/10.1007/s00344-024-11541-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00344-024-11541-2" target="_blank" >10.1007/s00344-024-11541-2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Changes in the Endogenous Phytohormone Status of Drought-Stressed Impatiens walleriana Hook. f. Plants Treated with Methyl Jasmonate

Popis výsledku v původním jazyce

The response of plants to changing environmental conditions is mediated by endogenous phytohormones of which concentration and activity can be altered by the exogenous application of plant growth regulators (PGRs). The present study was conducted to investigate the effects of foliar application of distilled water (ddH2O) and methyl jasmonate (MeJA-5 and 50 mu M) under drought stress (15 and 5% of soil water content-SWC) on the endogenous phytohormone status of Impatiens walleriana. The following classes of phytohormones were analyzed by HPLC-MS: abscisic acid (ABA) and its metabolic intermediates, jasmonates, salicylic acid (SA), cytokinins (CKs), and auxin indole-3-acetic acid (IAA). The results showed that plant leaves sprayed with 50 mu M MeJA during severe drought (5% SWC) had the highest concentrations of ABA and jasmonic acid (JA). In addition, the plant leaves treated with 50 mu M MeJA at 15% SWC showed a significantly increased JA content. In plant groups treated with ddH2O and 50 mu M MeJA, the content of another jasmonate, jasmonic acid-isoleucine (JA-Ile), increased at 5% SWC. Interestingly, foliar application of MeJA did not induce changes in endogenous MeJA content in I. walleriana leaves. Similarly, no changes in SA or CK content were observed in any of the treated plant groups. On the other hand, an increase in the auxin IAA was observed in plants sprayed with ddH2O and 50 mu M MeJA at 5% SWC. The results from this study indicate that MeJA foliar application could significantly affect the endogenous phytohormonal status of I. walleriana, which changes are fundamental in overall plant drought experience. According to the obtained results, the concentration of ABA and jasmonates changed the most significantly, indicating a possible overlap of their signaling pathways, as well as interaction with other phytohormones.

Název v anglickém jazyce

Changes in the Endogenous Phytohormone Status of Drought-Stressed Impatiens walleriana Hook. f. Plants Treated with Methyl Jasmonate

Popis výsledku anglicky

The response of plants to changing environmental conditions is mediated by endogenous phytohormones of which concentration and activity can be altered by the exogenous application of plant growth regulators (PGRs). The present study was conducted to investigate the effects of foliar application of distilled water (ddH2O) and methyl jasmonate (MeJA-5 and 50 mu M) under drought stress (15 and 5% of soil water content-SWC) on the endogenous phytohormone status of Impatiens walleriana. The following classes of phytohormones were analyzed by HPLC-MS: abscisic acid (ABA) and its metabolic intermediates, jasmonates, salicylic acid (SA), cytokinins (CKs), and auxin indole-3-acetic acid (IAA). The results showed that plant leaves sprayed with 50 mu M MeJA during severe drought (5% SWC) had the highest concentrations of ABA and jasmonic acid (JA). In addition, the plant leaves treated with 50 mu M MeJA at 15% SWC showed a significantly increased JA content. In plant groups treated with ddH2O and 50 mu M MeJA, the content of another jasmonate, jasmonic acid-isoleucine (JA-Ile), increased at 5% SWC. Interestingly, foliar application of MeJA did not induce changes in endogenous MeJA content in I. walleriana leaves. Similarly, no changes in SA or CK content were observed in any of the treated plant groups. On the other hand, an increase in the auxin IAA was observed in plants sprayed with ddH2O and 50 mu M MeJA at 5% SWC. The results from this study indicate that MeJA foliar application could significantly affect the endogenous phytohormonal status of I. walleriana, which changes are fundamental in overall plant drought experience. According to the obtained results, the concentration of ABA and jasmonates changed the most significantly, indicating a possible overlap of their signaling pathways, as well as interaction with other phytohormones.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

<a href="/cs/project/EH22_008%2F0004581" target="_blank" >EH22_008/0004581: Nové poznatky pro plodiny nové generace</a><br>

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

Journal of Plant Growth Regulation

ISSN

0721-7595

e-ISSN

1435-8107

Svazek periodika

44

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

18

Strana od-do

266-283

Kód UT WoS článku

001343193900001

EID výsledku v databázi Scopus

2-s2.0-85207360992