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

dc.contributor.authorOmidi, Azam
dc.contributor.authorEsterhuizen-Londt, Maranda
dc.contributor.authorPflugmacher, Stephan
dc.date.accessioned2020-11-12T08:32:29Z
dc.date.available2020-11-12T08:32:29Z
dc.date.issued2019-07-26
dc.description.abstractIn 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.en
dc.identifier.eissn0160-4120
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/11906
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-10797
dc.language.isoenen
dc.relation.ispartof10.14279/depositonce-9921
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subject.ddc600 Technik, Technologiede
dc.subject.otherinterspecies interactionsen
dc.subject.otherco-cultivationen
dc.subject.otherM. aeruginosaen
dc.subject.otherD. subspicatusen
dc.titleInterspecies interactions between Microcystis aeruginosa PCC 7806 and Desmodesmus subspicatus SAG 86.81 in a co-cultivation system at various growth phasesen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.articlenumber105052en
dcterms.bibliographicCitation.doi10.1016/j.envint.2019.105052en
dcterms.bibliographicCitation.journaltitleEnvironment internationalen
dcterms.bibliographicCitation.originalpublishernameElsevieren
dcterms.bibliographicCitation.originalpublisherplaceAmsterdam [u.a.]en
dcterms.bibliographicCitation.volume131en
tub.accessrights.dnbfreeen
tub.affiliationFak. 3 Prozesswissenschaften::Inst. Biotechnologiede
tub.affiliation.facultyFak. 3 Prozesswissenschaftende
tub.affiliation.instituteInst. Biotechnologiede
tub.publisher.universityorinstitutionTechnische Universität Berlinen

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