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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

<a href="/en/project/EH22_008%2F0004581" target="_blank" >EH22_008/0004581: TowArds Next GENeration Crops (TANGENC)</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Journal of Plant Growth Regulation

ISSN

0721-7595

e-ISSN

1435-8107

Volume of the periodical

44

Issue of the periodical within the volume

1

Country of publishing house

DE - GERMANY

Number of pages

18

Pages from-to

266-283

UT code for WoS article

001343193900001

EID of the result in the Scopus database

2-s2.0-85207360992