Highly Variable and Non-complex Diazotroph Communities in Corals From Ambient and High CO2 Environments

Lade...
Vorschaubild
Dateien
Geissler_2-ny2h6vl0p05l2.pdf
Geissler_2-ny2h6vl0p05l2.pdfGröße: 3.29 MBDownloads: 117
Datum
2021
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
ArXiv-ID
Internationale Patentnummer
Link zur Lizenz
EU-Projektnummer
DFG-Projektnummer
Angaben zur Forschungsförderung (Freitext)
Projekt
Open Access-Veröffentlichung
Sammlungen
Gesperrt bis
Titel in einer weiteren Sprache
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Frontiers in Marine Science. Frontiers. 2021, 8, 754682. eISSN 2296-7745. Available under: doi: 10.3389/fmars.2021.754682
Zusammenfassung

The ecological success of corals depends on their association with microalgae and a diverse bacterial assemblage. Ocean acidification (OA), among other stressors, threatens to impair host-microbial metabolic interactions that underlie coral holobiont functioning. Volcanic CO2 seeps offer a unique opportunity to study the effects of OA in natural reef settings and provide insight into the long-term adaptations under a low pH environment. Here we compared nitrogen-fixing bacteria (diazotrophs) associated with four coral species (Pocillopora damicornis, Galaxea fascicularis, Acropora secale, and Porites rus) collected from CO2 seeps at Tutum Bay (Papua New Guinea) with those from a nearby ambient CO2 site using nifH amplicon sequencing to characterize the effects of seawater pH on bacterial communities and nitrogen cycling. Diazotroph communities were of generally low diversity across all coral species and for both sampling sites. Out of a total of 25 identified diazotroph taxa, 14 were associated with P. damicornis, of which 9 were shared across coral species. None of the diazotroph taxa, however, were consistently found across all coral species or across all samples within a species pointing to a high degree of diazotroph community variability. Rather, the majority of sampled colonies were dominated by one or two diazotroph taxa of high relative abundance. Pocillopora damicornis and Galaxea fascicularis that were sampled in both environments showed contrasting community assemblages between sites. In P. damicornis, Gammaproteobacteria and Cyanobacteria were prevalent under ambient pCO2, while a single member of the family Rhodobacteraceae was present at high relative abundance at the high pCO2 site. Conversely, in G. fascicularis diazotroph communities were indifferent between both sites. Diazotroph community changes in response to OA seem thus variable within as well as between host species, potentially arguing for haphazard diazotroph community assembly. This warrants further research into the underlying factors structuring diazotroph community assemblages and their functional role in the coral holobiont.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
570 Biowissenschaften, Biologie
Schlagwörter
coral holobiont, diazotrophy, nitrogen fixation, climate change, ocean acidification, nifH, nextgeneration sequencing
Konferenz
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690GEISSLER, Laura, Valentine MEUNIER, Nils RÄDECKER, Gabriela PERNA, Riccardo RODOLFO-METALPA, Fanny HOULBRÈQUE, Christian R. VOOLSTRA, 2021. Highly Variable and Non-complex Diazotroph Communities in Corals From Ambient and High CO2 Environments. In: Frontiers in Marine Science. Frontiers. 2021, 8, 754682. eISSN 2296-7745. Available under: doi: 10.3389/fmars.2021.754682
BibTex
@article{Geiler2021-10-28Highl-55495,
  year={2021},
  doi={10.3389/fmars.2021.754682},
  title={Highly Variable and Non-complex Diazotroph Communities in Corals From Ambient and High CO<sub>2</sub> Environments},
  volume={8},
  journal={Frontiers in Marine Science},
  author={Geißler, Laura and Meunier, Valentine and Rädecker, Nils and Perna, Gabriela and Rodolfo-Metalpa, Riccardo and Houlbrèque, Fanny and Voolstra, Christian R.},
  note={Article Number: 754682}
}
RDF
<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/55495">
    <dc:creator>Rodolfo-Metalpa, Riccardo</dc:creator>
    <dc:contributor>Houlbrèque, Fanny</dc:contributor>
    <dc:contributor>Rodolfo-Metalpa, Riccardo</dc:contributor>
    <dc:creator>Rädecker, Nils</dc:creator>
    <dc:creator>Meunier, Valentine</dc:creator>
    <dc:language>eng</dc:language>
    <dcterms:title>Highly Variable and Non-complex Diazotroph Communities in Corals From Ambient and High CO&lt;sub&gt;2&lt;/sub&gt; Environments</dcterms:title>
    <dc:rights>Attribution 4.0 International</dc:rights>
    <dc:creator>Perna, Gabriela</dc:creator>
    <dcterms:issued>2021-10-28</dcterms:issued>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dc:creator>Voolstra, Christian R.</dc:creator>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-11-09T16:29:47Z</dcterms:available>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/55495/1/Geissler_2-ny2h6vl0p05l2.pdf"/>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/55495"/>
    <dc:contributor>Rädecker, Nils</dc:contributor>
    <dcterms:abstract xml:lang="eng">The ecological success of corals depends on their association with microalgae and a diverse bacterial assemblage. Ocean acidification (OA), among other stressors, threatens to impair host-microbial metabolic interactions that underlie coral holobiont functioning. Volcanic CO&lt;sub&gt;2&lt;/sub&gt; seeps offer a unique opportunity to study the effects of OA in natural reef settings and provide insight into the long-term adaptations under a low pH environment. Here we compared nitrogen-fixing bacteria (diazotrophs) associated with four coral species (Pocillopora damicornis, Galaxea fascicularis, Acropora secale, and Porites rus) collected from CO&lt;sub&gt;2&lt;/sub&gt; seeps at Tutum Bay (Papua New Guinea) with those from a nearby ambient CO&lt;sub&gt;2&lt;/sub&gt; site using nifH amplicon sequencing to characterize the effects of seawater pH on bacterial communities and nitrogen cycling. Diazotroph communities were of generally low diversity across all coral species and for both sampling sites. Out of a total of 25 identified diazotroph taxa, 14 were associated with P. damicornis, of which 9 were shared across coral species. None of the diazotroph taxa, however, were consistently found across all coral species or across all samples within a species pointing to a high degree of diazotroph community variability. Rather, the majority of sampled colonies were dominated by one or two diazotroph taxa of high relative abundance. Pocillopora damicornis and Galaxea fascicularis that were sampled in both environments showed contrasting community assemblages between sites. In P. damicornis, Gammaproteobacteria and Cyanobacteria were prevalent under ambient pCO&lt;sub&gt;2&lt;/sub&gt;, while a single member of the family Rhodobacteraceae was present at high relative abundance at the high pCO&lt;sub&gt;2&lt;/sub&gt; site. Conversely, in G. fascicularis diazotroph communities were indifferent between both sites. Diazotroph community changes in response to OA seem thus variable within as well as between host species, potentially arguing for haphazard diazotroph community assembly. This warrants further research into the underlying factors structuring diazotroph community assemblages and their functional role in the coral holobiont.</dcterms:abstract>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:contributor>Geißler, Laura</dc:contributor>
    <dc:creator>Houlbrèque, Fanny</dc:creator>
    <dc:contributor>Voolstra, Christian R.</dc:contributor>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by/4.0/"/>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/55495/1/Geissler_2-ny2h6vl0p05l2.pdf"/>
    <dc:contributor>Meunier, Valentine</dc:contributor>
    <dc:creator>Geißler, Laura</dc:creator>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-11-09T16:29:47Z</dc:date>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dc:contributor>Perna, Gabriela</dc:contributor>
  </rdf:Description>
</rdf:RDF>
Interner Vermerk
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Kontakt
URL der Originalveröffentl.
Prüfdatum der URL
Prüfungsdatum der Dissertation
Finanzierungsart
Kommentar zur Publikation
Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Ja
Begutachtet
Ja
Diese Publikation teilen