Interspecies interactions between Microcystis aeruginosa PCC 7806 and Desmodesmus subspicatus SAG 86.81 in a co-cultivation system at various growth phases.

Chlorophyceae / growth & development Coculture Techniques Ecosystem Microcystis / growth & development
Co-cultivation D. subspicatus Interspecies interactions M. aeruginosa

Journal

Environment international
ISSN: 1873-6750
Titre abrégé: Environ Int
Pays: Netherlands
ID NLM: 7807270

Informations de publication

Date de publication:
10 2019
Historique:
received: 09 04 2019
revised: 19 07 2019
accepted: 22 07 2019
pubmed: 30 7 2019
medline: 25 2 2020
entrez: 30 7 2019
Statut: ppublish

Résumé

In lakes, cyanobacterial blooms are frequently associated with green algae and dominate the phytoplankton community in successive waves. In the present study, the interactions between Microcystis aeruginosa PCC 7806 and Desmodesmus subspicatus were studied to clarify the probable ecological significance of algal secondary metabolites; focusing on the role of cyanotoxin 'microcystin-LR' (MC-LR). A dialysis co-cultivation technique was applied where M. aeruginosa was grown inside and D. subspicatus was cultured outside of the dialysis tubing. The concentration of the intra- and extracellular MC-LR and the growth of two species were measured at different time points over a period of one month. Additionally, the growth of the two species in the culture filtrate of one another and the effect of the purified MC-LR on the growth of the green alga were studied. The results indicated that the co-existing species could affect each other depending on the growth phases. Despite the early dominance of D. subspicatus during the logarithmic phase, M. aeruginosa suppressed the growth of the green alga at the stationary phase, which coincided with increased MC production and release. However, the inhibitory effects of Microcystis might be related to its other extracellular metabolites rather than, or possibly in addition to, MC.

Identifiants

DOI: 10.1016/j.envint.2019.105052 PMID: 31357091
pubmed: 31357091
pii: S0160-4120(19)31199-7
doi: 10.1016/j.envint.2019.105052
pii:
doi:

Types de publication

Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

105052

Informations de copyright

Copyright © 2019 The Authors. Published by Elsevier Ltd.. All rights reserved.

Auteurs

Azam Omidi (A)

Technische Universität Berlin, Chair Ecological Impact Research and Ecotoxicology, Ernst-Reuter-Platz 1, 10587 Berlin, Germany. Electronic address: azam.omidi@campus.tu-berlin.

Maranda Esterhuizen-Londt (M)

University of Helsinki, Aquatic Ecotoxicology in an Urban Environment, Ecosystems and Environment Research Programme, Faculty of Biological and Environmental Sciences, Niemenkatu 73, 15140 Lahti, Finland; Korean Institute of Science and Technology Europe (KIST), Joint laboratory of Applied Ecotoxicology, Campus E7 1, 66123 Saarbrücken, Germany; Helsinki Institute of Sustainability (HELSUS), Fabianinkatu 33, 00014 Helsinki, Finland. Electronic address: maranda.esterhuizen-londt@helsinki.fi.

Stephan Pflugmacher (S)

University of Helsinki, Aquatic Ecotoxicology in an Urban Environment, Ecosystems and Environment Research Programme, Faculty of Biological and Environmental Sciences, Niemenkatu 73, 15140 Lahti, Finland; Korean Institute of Science and Technology Europe (KIST), Joint laboratory of Applied Ecotoxicology, Campus E7 1, 66123 Saarbrücken, Germany; Helsinki Institute of Sustainability (HELSUS), Fabianinkatu 33, 00014 Helsinki, Finland. Electronic address: stephan.pflugmacher@helsinki.fi.

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Classifications MeSH

questionsmedicales.fr › Eucaryotes › Viridiplantae › Chlorophyta › Chlorophyceae › Interspecies interactions between Microcystis...
questionsmedicales.fr › Techniques d'investigation › Techniques in vitro › Techniques de culture › Techniques de coculture › Interspecies interactions between Microcystis...
questionsmedicales.fr › Environnement et santé publique › Environnement › Écosystème › Interspecies interactions between Microcystis...
questionsmedicales.fr › Bactéries › Bactéries à Gram négatif › Bactéries à Gram négatif photosynthétiques › Cyanobactéries › Microcystis › Interspecies interactions between Microcystis...