Individual and combined effects of a simulated heatwave and the emerging Phytophthora ×multiformis on European alder species

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F25%3A43927588" target="_blank" >RIV/62156489:43410/25:43927588 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.foreco.2025.123202" target="_blank" >https://doi.org/10.1016/j.foreco.2025.123202</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.foreco.2025.123202" target="_blank" >10.1016/j.foreco.2025.123202</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Individual and combined effects of a simulated heatwave and the emerging Phytophthora ×multiformis on European alder species

Popis výsledku v původním jazyce

The decline of alder forests induced by increasing temperatures and the &quot;Phytophthora xalni species complex&quot;, a group of emerging non-native pathogens, represents a major threat to riparian ecosystems across the Northern Hemisphere. The intensification of heatwaves and the pathogen spread and disease expansion to Southern Europe underscores the importance of studying the responses of alder species to these stressors. This study assesses individual and combined effects of a simulated extreme heatwave and infection by the pathogen P. xmultiformis on Alnus glutinosa and A. lusitanica to identify more resilient genotypes and thus help to mitigate alder decline. 1760 two-year-old alder saplings from 11 populations and 6 genetic groups from Sweden to Morocco were subjected to individual and combined treatments of heatwave and subsequent pathogen infection. Mortality, stem and leaf necrosis, morphological and water-exchange parameters were periodically assessed. Alnus lusitanica showed higher tolerance to heat stress than A. glutinosa. Responses to the combined stressors differed significantly between populations and genetic groups of both alder species. Plant mortality was highest in the treatment with combined stressors, particularly for the southern populations of A. lusitanica. High genetic diversity and previous exposure to extreme temperatures and Phytophthora may provide alder populations an adaptive advantage when responding to individual or combined stressors. Our results suggest that P. xmultiformis infection after heatwave events may aggravate alder decline in riparian ecosystems, particularly in A. lusitanica. Further research on the disease effects in riparian forests of A. lusitanica is essential for the conservation and management of this endemic species.

Název v anglickém jazyce

Individual and combined effects of a simulated heatwave and the emerging Phytophthora ×multiformis on European alder species

Popis výsledku anglicky

The decline of alder forests induced by increasing temperatures and the &quot;Phytophthora xalni species complex&quot;, a group of emerging non-native pathogens, represents a major threat to riparian ecosystems across the Northern Hemisphere. The intensification of heatwaves and the pathogen spread and disease expansion to Southern Europe underscores the importance of studying the responses of alder species to these stressors. This study assesses individual and combined effects of a simulated extreme heatwave and infection by the pathogen P. xmultiformis on Alnus glutinosa and A. lusitanica to identify more resilient genotypes and thus help to mitigate alder decline. 1760 two-year-old alder saplings from 11 populations and 6 genetic groups from Sweden to Morocco were subjected to individual and combined treatments of heatwave and subsequent pathogen infection. Mortality, stem and leaf necrosis, morphological and water-exchange parameters were periodically assessed. Alnus lusitanica showed higher tolerance to heat stress than A. glutinosa. Responses to the combined stressors differed significantly between populations and genetic groups of both alder species. Plant mortality was highest in the treatment with combined stressors, particularly for the southern populations of A. lusitanica. High genetic diversity and previous exposure to extreme temperatures and Phytophthora may provide alder populations an adaptive advantage when responding to individual or combined stressors. Our results suggest that P. xmultiformis infection after heatwave events may aggravate alder decline in riparian ecosystems, particularly in A. lusitanica. Further research on the disease effects in riparian forests of A. lusitanica is essential for the conservation and management of this endemic species.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40102 - Forestry

Projekt

<a href="/cs/project/EF15_003%2F0000453" target="_blank" >EF15_003/0000453: Výzkumné centrum pro studium patogenů z rodu Phytophthora</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Forest Ecology and Management

ISSN

0378-1127

e-ISSN

1872-7042

Svazek periodika

598

Číslo periodika v rámci svazku

15 December

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

123202

Kód UT WoS článku

001600200000001

EID výsledku v databázi Scopus

2-s2.0-105018921159