Rapid nitrification involving comammox and canonical Nitrospira at extreme pH in saline-alkaline lakes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F23%3A00572591" target="_blank" >RIV/60077344:_____/23:00572591 - isvavai.cz</a>

Result on the web

<a href="https://ami-journals.onlinelibrary.wiley.com/doi/pdfdirect/10.1111/1462-2920.16337" target="_blank" >https://ami-journals.onlinelibrary.wiley.com/doi/pdfdirect/10.1111/1462-2920.16337</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/1462-2920.16337" target="_blank" >10.1111/1462-2920.16337</a>

Result language

angličtina

Original language name

Rapid nitrification involving comammox and canonical Nitrospira at extreme pH in saline-alkaline lakes

Original language description

Nitrite-oxidizing bacteria (NOB) catalyse the second nitrification step and are the main biological source of nitrate. The most diverse and widespread NOB genus is Nitrospira, which also contains complete ammonia oxidizers (comammox) that oxidize ammonia to nitrate. To date, little is known about the occurrence and biology of comammox and canonical nitrite oxidizing Nitrospira in extremely alkaline environments. Here, we studied the seasonal distribution and diversity, and the effect of short-term pH changes on comammox and canonical Nitrospira in sediments of two saline, highly alkaline lakes. We identified diverse canonical and comammox Nitrospira clade A-like phylotypes as the only detectable NOB during more than a year, suggesting their major importance for nitrification in these habitats. Gross nitrification rates measured in microcosm incubations were highest at pH 10 and considerably faster than reported for other natural, aquatic environments. Nitrification could be attributed to canonical and comammox Nitrospira and to Nitrososphaerales ammonia-oxidizing archaea. Furthermore, our data suggested that comammox Nitrospira contributed to ammonia oxidation at an extremely alkaline pH of 11. These results identify saline, highly alkaline lake sediments as environments of uniquely strong nitrification with novel comammox Nitrospira as key microbial players.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10606 - Microbiology

Project

<a href="/en/project/GM21-17322M" target="_blank" >GM21-17322M: Illuminating the interactions between nitrification and methane oxidation and the ensuing ecological impacts</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

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

25

Issue of the periodical within the volume

5

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

1055-1067

UT code for WoS article

000925707300001

EID of the result in the Scopus database

2-s2.0-85147420880