Effect of dry-rewetting stress on response pattern of soil prokaryotic communities in alpine meadow soil

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F18%3A00490856" target="_blank" >RIV/60077344:_____/18:00490856 - isvavai.cz</a>

Alternative codes found

RIV/61388971:_____/18:00490856 RIV/00216208:11310/18:10378429

Result on the web

<a href="http://dx.doi.org/10.1016/j.apsoil.2018.02.015" target="_blank" >http://dx.doi.org/10.1016/j.apsoil.2018.02.015</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apsoil.2018.02.015" target="_blank" >10.1016/j.apsoil.2018.02.015</a>

Result language

angličtina

Original language name

Effect of dry-rewetting stress on response pattern of soil prokaryotic communities in alpine meadow soil

Original language description

Soil microorganisms are recognized as key players in all biogeochemical cycles. However, little effort has been paid to incorporate them in predictive models for future climate change. Here, we investigated the variation of prokaryotic community composition in alpine meadow soil from the Qinghai-Tibet Plateau under dry-rewetting stress using MiSeq sequencing approach. We incubated soils treated by various frequencies of rewetting and durations of desiccation. Emission rates of methane, carbon dioxide and nitrous oxide were measured every week during five months of incubation, and soil samples were taken each month for community composition analysis. Our results revealed that soil prokaryotic community showed different response patterns to dry-wetting cycles. Diversity indices significantly increased in soils under short-term drought and soils rewetted after long-term drought. Higher niche partitioning was promoted by higher frequencies of disturbance and rapid physiological activation of inactive microbial communities during desiccation, allowing colonization by a diverse array of organisms. Null model percentage of NTI revealed a strong phylogenetic relatedness of soil prokaryotic communities across all treatments and incubation times, suggesting that desiccation and rewetting events were strong biological filters shaping community assemblies. Our results also indicated different responses of various genera belonging to same phylum. These results suggest that prokaryotes that are well adapted to extremely stressful conditions such as long-term desiccation may release more greenhouse gasses in a positive feedback loop and that this prospect should be considered when modeling climate change.

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

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OECD FORD branch

10606 - Microbiology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2018

Confidentiality

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

Name of the periodical

Applied Soil Ecology

ISSN

0929-1393

e-ISSN

—

Volume of the periodical

126

Issue of the periodical within the volume

May

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

98-106

UT code for WoS article

000428332500011

EID of the result in the Scopus database

2-s2.0-85042175478