nir gene-based co-occurrence patterns reveal assembly mechanisms of soil denitrifiers in response to fire

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F21%3A00542261" target="_blank" >RIV/60077344:_____/21:00542261 - isvavai.cz</a>

Result on the web

<a href="https://sfamjournals.onlinelibrary.wiley.com/doi/10.1111/1462-2920.15298" target="_blank" >https://sfamjournals.onlinelibrary.wiley.com/doi/10.1111/1462-2920.15298</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/1462-2920.15298" target="_blank" >10.1111/1462-2920.15298</a>

Result language

angličtina

Original language name

nir gene-based co-occurrence patterns reveal assembly mechanisms of soil denitrifiers in response to fire

Original language description

Denitrification causes nitrogen losses from terrestrial ecosystems. The magnitude of nitrogen loss depends on the prevalence of denitrifiers, which show ecological differences if they harbour nirS or nirK genes encoding nitrite reductases with the same biological function. Thus, it is relevant to understand the mechanisms of co-existence of denitrifiers, including their response to environmental filters and competition due to niche similarities. We propose a framework to analyse the co-existence of denitrifiers across multiple assemblages by using nir gene-based co-occurrence networks. We applied it in Mediterranean soils before and during 1 year after an experimental fire. Burning did not modify nir community structure, but significantly impacted co-occurrence patterns. Bacteria with the same nir co-occurred in space, and those with different nir excluded each other, reflecting niche requirements: nirS abundance responded to nitrate and salinity, whereas nirK to iron content. Prior to fire, mutual exclusion between bacteria with the same nir suggested competition due to niche similarities. Burning provoked an immediate rise in mineral nitrogen and erased the signals of competition, which emerged again within days as nir abundances peaked. nir co-occurrence patterns can help infer the assembly mechanisms of denitrifying communities, which control nitrogen losses in the face of ecological disturbance.

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

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

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

Name of the periodical

Environmental Microbiology

ISSN

1462-2912

e-ISSN

1462-2920

Volume of the periodical

23

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

239-251

UT code for WoS article

000587928800001

EID of the result in the Scopus database

2-s2.0-85096764952