Microbial communities in soil macro-aggregates with less connected networks respire less across successional and geographic gradients

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F22%3A00557142" target="_blank" >RIV/60077344:_____/22:00557142 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/22:10445576

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S116455632100114X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S116455632100114X?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ejsobi.2021.103378" target="_blank" >10.1016/j.ejsobi.2021.103378</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Microbial communities in soil macro-aggregates with less connected networks respire less across successional and geographic gradients

Popis výsledku v původním jazyce

The formation of soil aggregates is related to the stability of soil organic carbon, which distinguishes the living conditions of microbial communities in different micro-niches. Here, we investigated fungal and bacterial community structure, networks, biomass and respiration in individual micro-niches between and within soil aggregates using seven different chronosequences (both primary and secondary successions from pioneer stages to well-developed ecosystems) on a European-scale gradient from a maritime climate in Belgium to a more continental climate in Hungary. We showed that geographical location was the most important factor (74% for bacterial community, 53% for fungal community) affecting microbial community composition, while soil aggregates (5% for bacterial community and 12% for fungal community) were the second most important factor followed by age of succession and vegetation. Moreover, aggregates (52%) were the most important factor influencing the biomass of major microbial groups, followed by location (37%) and age of succession (6%). Interestingly, macro-aggregates had less interconnected microbial networks and low microbial respiration rates compared to other aggregate sizes. We therefore hypothesize that the embedding of organic particles in the mineral matrix of macro-aggregates is a crucial point in microbial community organization, as evidenced by microbial community connectivity and microbial respiration. Our results demonstrate the importance of soil aggregates for microbial community organization and soil carbon stabilization.

Název v anglickém jazyce

Microbial communities in soil macro-aggregates with less connected networks respire less across successional and geographic gradients

Popis výsledku anglicky

The formation of soil aggregates is related to the stability of soil organic carbon, which distinguishes the living conditions of microbial communities in different micro-niches. Here, we investigated fungal and bacterial community structure, networks, biomass and respiration in individual micro-niches between and within soil aggregates using seven different chronosequences (both primary and secondary successions from pioneer stages to well-developed ecosystems) on a European-scale gradient from a maritime climate in Belgium to a more continental climate in Hungary. We showed that geographical location was the most important factor (74% for bacterial community, 53% for fungal community) affecting microbial community composition, while soil aggregates (5% for bacterial community and 12% for fungal community) were the second most important factor followed by age of succession and vegetation. Moreover, aggregates (52%) were the most important factor influencing the biomass of major microbial groups, followed by location (37%) and age of succession (6%). Interestingly, macro-aggregates had less interconnected microbial networks and low microbial respiration rates compared to other aggregate sizes. We therefore hypothesize that the embedding of organic particles in the mineral matrix of macro-aggregates is a crucial point in microbial community organization, as evidenced by microbial community connectivity and microbial respiration. Our results demonstrate the importance of soil aggregates for microbial community organization and soil carbon stabilization.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40104 - Soil science

Projekt

<a href="/cs/project/GA18-24138S" target="_blank" >GA18-24138S: Tvorba půdních agregátů během sukcese a její úloha v akumulaci uhlíku a zadržování vody v půdě</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

European Journal of Soil Biology

ISSN

1164-5563

e-ISSN

1778-3615

Svazek periodika

108

Číslo periodika v rámci svazku

January-February

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

10

Strana od-do

103378

Kód UT WoS článku

000784268000005

EID výsledku v databázi Scopus

2-s2.0-85121234541