Moderate drought stress increases resistance of Brassica napus to subsequent infection by Leptosphaeria maculans

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F25%3A00618467" target="_blank" >RIV/61389030:_____/25:00618467 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41210/25:102481

Výsledek na webu

<a href="https://doi.org/10.32615/bp.2025.001" target="_blank" >https://doi.org/10.32615/bp.2025.001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.32615/bp.2025.001" target="_blank" >10.32615/bp.2025.001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Moderate drought stress increases resistance of Brassica napus to subsequent infection by Leptosphaeria maculans

Popis výsledku v původním jazyce

Plants have developed adaptive strategies to cope with environmental stresses, but mechanisms effective under one stress may be counterproductive under others. This study investigates the effect of moderate drought stress pretreatment on the resistance of Brassica napus to Leptosphaeria maculans, the pathogen causing blackleg disease. B. napus plants were exposed to varying durations of drought stress, followed by a 24-h recovery period before inoculation with L. maculans. The results demonstrate a priming effect of the drought pretreatment, with a reduction in necrotic lesions in cotyledons compared to non-stressed controls. The most pronounced effect was observed in plants that underwent a 68-h drought pretreatment, resulting in a 45% reduction in disease symptoms. The transcriptions of 17 genes involved in B. napus defence against pathogen infection and drought stress were monitored. This revealed the involvement of the salicylic acid signaling pathway, indicated by increased expression of PR1 and PR2 marker genes. Additionally, drought stress marker genes were upregulated. These findings provide insight into the mechanisms of plant adaptation to combined biotic and abiotic stresses, which is essential for sustainable agriculture in a changing environment.

Název v anglickém jazyce

Moderate drought stress increases resistance of Brassica napus to subsequent infection by Leptosphaeria maculans

Popis výsledku anglicky

Plants have developed adaptive strategies to cope with environmental stresses, but mechanisms effective under one stress may be counterproductive under others. This study investigates the effect of moderate drought stress pretreatment on the resistance of Brassica napus to Leptosphaeria maculans, the pathogen causing blackleg disease. B. napus plants were exposed to varying durations of drought stress, followed by a 24-h recovery period before inoculation with L. maculans. The results demonstrate a priming effect of the drought pretreatment, with a reduction in necrotic lesions in cotyledons compared to non-stressed controls. The most pronounced effect was observed in plants that underwent a 68-h drought pretreatment, resulting in a 45% reduction in disease symptoms. The transcriptions of 17 genes involved in B. napus defence against pathogen infection and drought stress were monitored. This revealed the involvement of the salicylic acid signaling pathway, indicated by increased expression of PR1 and PR2 marker genes. Additionally, drought stress marker genes were upregulated. These findings provide insight into the mechanisms of plant adaptation to combined biotic and abiotic stresses, which is essential for sustainable agriculture in a changing environment.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10609 - Biochemical research methods

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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

Biologia Plantarum

ISSN

0006-3134

e-ISSN

1573-8264

Svazek periodika

69

Číslo periodika v rámci svazku

FEB

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

001429127000001

EID výsledku v databázi Scopus

2-s2.0-86000591840