Resilience of planktonic bacterial community structure in response to short-term weather deterioration during the growing season in an alpine lake.
Hydrobiologia 847, 535-548 (2020)
The disturbing effect of a short-term cooling period during summer on planktonic bacterial community structure of an alpine lake was investigated using 16S rDNA pyrosequencing. Proteobacteria, Actinobacteria, and Bacteroidetes constituted the most abundant phyla. During the sampling period (from July to August 2010), a sudden cooling period with high precipitation occurred, as indicated by a decrease in conductivity, calcium, and dissolved organic carbon concentration resulting from increased runoff. The relative abundance of Actinobacteria, Betaproteobacteria, and Cyanobacteria decreased during this short-term cooling period. Instead, a rapid shift from Betaproteobacteria to Gammaproteobacteria occurred, which was mainly caused by an increase of Acinetobacter rhizosphaerae. Soon after the short-term cooling period, warmer weather conditions got re-established and Betaproteobacteria recovered and became again dominant. Non-metric multi-dimensional scaling analysis and Venn diagrams revealed a planktonic bacterial community composition with high similarity at the beginning and the end of the growing season. Air temperature and precipitation were significantly correlated with the observed variation in operational taxonomic unit (OTU) relative abundance. It is concluded that, in response to the short-term cooling period, a distinct planktonic bacterial OTU community developed. It rapidly diminished, however, as summer conditions became re-established, implying the recovery of the original bacterial community structure.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
High Mountain Lake ; Cooling Period ; Runoff ; Resilience ; Community Turnover ; Planktonic Bacteria ; Soil Bacteria; Fresh-water Bacterioplankton; Heterotrophic Nitrification; Aerobic Denitrification; Cyanobacterial Blooms; Climate-change; High-altitude; Sp-nov.; Diversity; Dynamics; Temperature
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2020
Prepublished im Jahr
2019
HGF-Berichtsjahr
2019
ISSN (print) / ISBN
0018-8158
e-ISSN
1573-5117
ISBN
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Konferenztitel
Konferzenzdatum
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Konferenzband
Quellenangaben
Band: 847,
Heft: 2,
Seiten: 535-548
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
Springer
Verlagsort
Van Godewijckstraat 30, 3311 Gz Dordrecht, Netherlands
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Prüfer
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0000-00-00
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0000-00-00
Anmelder/Inhaber
weitere Inhaber
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Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30203 - Molecular Targets and Therapies
Forschungsfeld(er)
Immune Response and Infection
PSP-Element(e)
G-554300-001
Förderungen
Copyright
Erfassungsdatum
2019-11-26