Nitrate addition has minimal short-term impacts on greenland ice sheet supraglacial prokaryotes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F17%3A10360623" target="_blank" >RIV/00216208:11310/17:10360623 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1111/1758-2229.12510" target="_blank" >http://dx.doi.org/10.1111/1758-2229.12510</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/1758-2229.12510" target="_blank" >10.1111/1758-2229.12510</a>

Result language

angličtina

Original language name

Nitrate addition has minimal short-term impacts on greenland ice sheet supraglacial prokaryotes

Original language description

Tropospheric nitrate levels are predicted to increase throughout the 21(st) century, with potential effects on terrestrial ecosystems, including the Greenland ice sheet (GrIS). This study considers the impacts of elevated nitrate concentrations on the abundance and composition of dominant bulk and active prokaryotic communities sampled from in situ nitrate fertilization plots on the GrIS surface. Nitrate concentrations were successfully elevated within sediment-filled meltwater pools, known as cryoconite holes; however, nitrate additions applied to surface ice did not persist. Estimated bulk and active cryoconite community cell abundance was unaltered by nitrate additions when compared to control holes using a quantitative PCR approach, and nitrate was found to have a minimal affect on the dominant 16S rRNA gene-based community composition. Together, these results indicate that sampled cryoconite communities were not nitrate limited at the time of sampling. Instead, temporal changes in biomass and community composition were more pronounced. As these in situ incubations were short (6 weeks), and the community composition across GrIS surface ice is highly variable, we suggest that further efforts should be considered to investigate the potential long-term impacts of increased nitrate across the GrIS.

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

10618 - Ecology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Name of the periodical

Environmental Microbiology Reports

ISSN

1758-2229

e-ISSN

—

Volume of the periodical

9

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

144-150

UT code for WoS article

000397493300010

EID of the result in the Scopus database

2-s2.0-85015373029