Influence of nutrients and light on autotrophic, mixotrophic and heterotrophic freshwater chrysophytes

Rottberger, Julia; Gruber, Ansgar; Boenigk, Jens; Kroth, Peter G.

Influence of nutrients and light on autotrophic, mixotrophic and heterotrophic freshwater chrysophytes

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2013

Autor:innen

Rottberger, Julia

Gruber, Ansgar

Boenigk, Jens

Kroth, Peter G.

Publikationstyp

Zeitschriftenartikel

unikn.publication.listelement.citation.prefix.version.undefined

Aquatic Microbial Ecology. 2013, 71(2), pp. 179-191. ISSN 0948-3055. Available under: doi: 10.3354/ame01662

Zusammenfassung

Chrysophyte algae show wide variation in their nutritional modes, which can be especially advantageous in oligotrophic conditions. However, the capacities and strategies of the algae to adapt to changing conditions may vary due to different nutritional requirements of individual species. In this context, comparative analyses evaluating the physiological range of mixotrophic chrysophytes are important to predict possible changes in phytoplankton composition. We compared 4 freshwater chrysophytes—Poteriospumella lacustris, Poterioochromonas malhamensis, Dinobryon divergens and Mallomonas annulata—under different growth conditions. The diatom Phaeodactylum tricornutum served as a photoautotrophic reference strain. We demonstrate active growth of P. lacustris and the mixotrophic P. malhamensis under chemoheterotrophic conditions. Neither of the chrysophytes were growing photoautotrophically; however, P. malhamensis showed some photosynthetic activity and survived longer when kept in the light. M. annulata, P. tricornutum and the mixotrophic D. divergens showed light-limited growth when kept in inorganic media. Even though D. divergens consumed living bacteria, it did not grow in the dark in the presence of the bacteria only. We detected large differences in the general nutritional preferences between the 2 mixotrophs in relation to the nutritional features of all investigated strains.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Schlagwörter

Mixotrophy, oxygen evolution, carbon, culturing conditions, Phaeodactylum tricornutum

Zitieren

ISO 690

ROTTBERGER, Julia, Ansgar GRUBER, Jens BOENIGK, Peter G. KROTH, 2013. Influence of nutrients and light on autotrophic, mixotrophic and heterotrophic freshwater chrysophytes. In: Aquatic Microbial Ecology. 2013, 71(2), pp. 179-191. ISSN 0948-3055. Available under: doi: 10.3354/ame01662

BibTex

@article{Rottberger2013Influ-25896,
  year={2013},
  doi={10.3354/ame01662},
  title={Influence of nutrients and light on autotrophic, mixotrophic and heterotrophic freshwater chrysophytes},
  number={2},
  volume={71},
  issn={0948-3055},
  journal={Aquatic Microbial Ecology},
  pages={179--191},
  author={Rottberger, Julia and Gruber, Ansgar and Boenigk, Jens and Kroth, Peter G.}
}

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/123456789/25896">
    <dcterms:title>Influence of nutrients and light on autotrophic, mixotrophic and heterotrophic freshwater chrysophytes</dcterms:title>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/25896"/>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2014-01-15T13:32:41Z</dc:date>
    <dcterms:issued>2013</dcterms:issued>
    <dc:rights>terms-of-use</dc:rights>
    <dc:contributor>Boenigk, Jens</dc:contributor>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dcterms:abstract xml:lang="eng">Chrysophyte algae show wide variation in their nutritional modes, which can be especially advantageous in oligotrophic conditions. However, the capacities and strategies of the algae to adapt to changing conditions may vary due to different nutritional requirements of individual species. In this context, comparative analyses evaluating the physiological range of mixotrophic chrysophytes are important to predict possible changes in phytoplankton composition. We compared 4 freshwater chrysophytes—Poteriospumella lacustris, Poterioochromonas malhamensis, Dinobryon divergens and Mallomonas annulata—under different growth conditions. The diatom Phaeodactylum tricornutum served as a photoautotrophic reference strain. We demonstrate active growth of P. lacustris and the mixotrophic P. malhamensis under chemoheterotrophic conditions. Neither of the chrysophytes were growing photoautotrophically; however, P. malhamensis showed some photosynthetic activity and survived longer when kept in the light. M. annulata, P. tricornutum and the mixotrophic D. divergens showed light-limited growth when kept in inorganic media. Even though D. divergens consumed living bacteria, it did not grow in the dark in the presence of the bacteria only. We detected large differences in the general nutritional preferences between the 2 mixotrophs in relation to the nutritional features of all investigated strains.</dcterms:abstract>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dc:creator>Rottberger, Julia</dc:creator>
    <dc:creator>Boenigk, Jens</dc:creator>
    <dc:language>eng</dc:language>
    <dc:contributor>Gruber, Ansgar</dc:contributor>
    <dcterms:bibliographicCitation>Aquatic microbial ecology : international journal ; 71 (2013), 2. - S. 179-191</dcterms:bibliographicCitation>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2014-01-15T13:32:41Z</dcterms:available>
    <dc:contributor>Kroth, Peter G.</dc:contributor>
    <dc:creator>Kroth, Peter G.</dc:creator>
    <dc:creator>Gruber, Ansgar</dc:creator>
    <dc:contributor>Rottberger, Julia</dc:contributor>
  </rdf:Description>
</rdf:RDF>

Universitätsbibliographie

Ja