Alteration of the tree-soil microbial system triggers a feedback loop that boosts holm oak decline

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F24%3A00587175" target="_blank" >RIV/61388971:_____/24:00587175 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43410/24:43924354

Výsledek na webu

<a href="https://besjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/1365-2435.14473" target="_blank" >https://besjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/1365-2435.14473</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/1365-2435.14473" target="_blank" >10.1111/1365-2435.14473</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Alteration of the tree-soil microbial system triggers a feedback loop that boosts holm oak decline

Popis výsledku v původním jazyce

1. In anthropic savanna ecosystems from the Iberian Peninsula (i.e. dehesa), complex interactions between climate change, pathogen outbreaks and human land use are presumed to be behind the observed increase in holm oak decline. These environmental disturbances alter the plant-soil microbial continuum, which can destabilize the ecological balance that sustains tree health. Yet, little is known about the underlying mechanisms, particularly the directions and nature of the causal-effect relationships between plants and soil microbial communities.2. In this study, we aimed to determine the role of plant-soil feedbacks in climate induced holm oak decline in the Iberian dehesa. Using a gradient of holm oak health, we reconstructed key soil biogeochemical cycles mediated by soil microbial communities. We used quantitative microbial element cycling (QMEC), a functional gene-array-based high-throughput technique to assess microbial functional potential in carbon, nitrogen, phosphorus and sulphur cycling.3. The onset of holm oak decline was positively related to the increase in relative abundance of soil microbial functional genes associated with denitrification and phosphorus mineralization (i.e. nirS3, ppx and pqqC, parameter value: 0.21, 0.23 and 0.4, p < 0.05). Structural equation model ( chi(2)= 32.26, p-value = 0.73), more over, showed a negative association between these functional genes and soil nutrient availability (i.e. mainly mineral nitrogen and phosphate). Particularly, the holm oak crown health was mainly determined by the abundance of phosphate (parameter value = 0.27, p-value < 0.05) and organic phosphorus (parameter value =0.37, p-value < 0.5).4. Hence, we propose a potential tree-soil feedback loop, in which the decline of holm oak promotes changes in the soil environment that triggers changes in key microbial-mediated metabolic pathways related to the net loss of soil nitrogen and phosphorus mineral forms. The shortage of essential nutrients, in turn, affects the ability of the trees to withstand the environmental stressors to which they are exposed.

Název v anglickém jazyce

Alteration of the tree-soil microbial system triggers a feedback loop that boosts holm oak decline

Popis výsledku anglicky

1. In anthropic savanna ecosystems from the Iberian Peninsula (i.e. dehesa), complex interactions between climate change, pathogen outbreaks and human land use are presumed to be behind the observed increase in holm oak decline. These environmental disturbances alter the plant-soil microbial continuum, which can destabilize the ecological balance that sustains tree health. Yet, little is known about the underlying mechanisms, particularly the directions and nature of the causal-effect relationships between plants and soil microbial communities.2. In this study, we aimed to determine the role of plant-soil feedbacks in climate induced holm oak decline in the Iberian dehesa. Using a gradient of holm oak health, we reconstructed key soil biogeochemical cycles mediated by soil microbial communities. We used quantitative microbial element cycling (QMEC), a functional gene-array-based high-throughput technique to assess microbial functional potential in carbon, nitrogen, phosphorus and sulphur cycling.3. The onset of holm oak decline was positively related to the increase in relative abundance of soil microbial functional genes associated with denitrification and phosphorus mineralization (i.e. nirS3, ppx and pqqC, parameter value: 0.21, 0.23 and 0.4, p < 0.05). Structural equation model ( chi(2)= 32.26, p-value = 0.73), more over, showed a negative association between these functional genes and soil nutrient availability (i.e. mainly mineral nitrogen and phosphate). Particularly, the holm oak crown health was mainly determined by the abundance of phosphate (parameter value = 0.27, p-value < 0.05) and organic phosphorus (parameter value =0.37, p-value < 0.5).4. Hence, we propose a potential tree-soil feedback loop, in which the decline of holm oak promotes changes in the soil environment that triggers changes in key microbial-mediated metabolic pathways related to the net loss of soil nitrogen and phosphorus mineral forms. The shortage of essential nutrients, in turn, affects the ability of the trees to withstand the environmental stressors to which they are exposed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10606 - Microbiology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Functional Ecology

ISSN

0269-8463

e-ISSN

1365-2435

Svazek periodika

38

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

17

Strana od-do

374-390

Kód UT WoS článku

001119373700001

EID výsledku v databázi Scopus

2-s2.0-85178376477