The effect of hydrostatic de- and re-compression events on deep-sea bacterial communities

DOI

This work focuses on the effect of decompression on bacterial communities from deep-sea surface sediments. We evaluated the effects of slow and fast decompression (within hours and seconds, respectively), and repeated de-re-compression (up to 10 times) on the abundance and extracellular enzymatic activity of bacterial communities as well as their taxonomic composition using next generation sequencing of the 16S rRNA and rRNA gene. Decompression due to sample retrieval from the seafloor with a push corer or a pressure corer showed minor effects on bacterial cell numbers and enzymatic activity patterns. It however showed an initial effect on bacterial activity patterns based on 16S rRNA (cDNA) community analysis. This signal vanished during a few hours standing at atmospheric pressure. The results reported here may be useful to provide ideas for future research as to how bacterial communities react to the procedure of sample retrieval from a high pressure environment.

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.874784
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.874784
Provenance
Creator Hoffmann, Katy ORCID logo; Hassenrück, Christiane ORCID logo; Bienhold, Christina ORCID logo
Publisher PANGAEA
Publication Year 2024
Funding Reference Seventh Framework Programme https://doi.org/10.13039/100011102 Crossref Funder ID 294757 https://cordis.europa.eu/project/id/294757 Assessment of bacterial life and matter cycling in deep-sea surface sediments
Rights Data access is restricted (moratorium, sensitive data, license constraints)
OpenAccess false
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 784 data points
Discipline Earth System Research
Spatial Coverage (4.131W, 79.070S, 4.143E, 79.082N); North Greenland Sea
Temporal Coverage Begin 2015-07-28T08:18:00Z
Temporal Coverage End 2015-08-10T18:18:00Z