Ciliate contributions to bioaggregation: laboratory assays with axenic cultures of Tetrahymena thermophila

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dc.contributor.authorArregui García-Roves, Lucía
dc.contributor.authorSerrano Barrero, Susana Lourdes
dc.contributor.authorLinares Gómez, María
dc.contributor.authorPérez Uz, María Blanca
dc.contributor.authorGuinea Díaz, Almudena
dc.date.accessioned2024-01-29T11:00:41Z
dc.date.available2024-01-29T11:00:41Z
dc.date.issued2007
dc.descriptionThis work was supported by grant BOS2002-01042 from the Ministerio de Ciencia y Tecnología, Spain
dc.description.abstractProtists, mainly ciliates, play several essential roles in biological wastewater treatment, such as the transfer of matter and energy, bacterial predation, and the removal of organic material. Moreover, during the treatment process, the formation of bioaggregates—flocs and biofilms—is essential to obtaining high-quality effluents. In the present study, Tetrahymena thermophila was used as a model organism to demonstrate the contribution of ciliates to bioflocculation. Axenic cultures of this species were exposed to chemical and mechanical stimuli that promote bioaggregation. In either case, the secretion of a capsulate mucous material by the ciliates or by particle aggregation was detected. Numerous, small, loosely compacted flocs were observed under shaking conditions and in the presence of latex beads. The composition of the exopolymeric material secreted by ciliates was analyzed by a series of fluorochromes and colorimetric methods, which showed that carbohydrates and nucleic acids were the main components involved in matrix formation and particle adhesion.
dc.description.departmentDepto. de Microbiología y Parasitología
dc.description.facultyFac. de Ciencias Biológicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Ciencia y Tecnología (España)
dc.description.statuspub
dc.identifier.citationSerrano, Susana, y Maria Linares. «Ciliate Contributions to Bioaggregation: Laboratory Assays with Axenic Cultures of Tetrahymena Thermophila». International Microbiology, n.o 10, 2007, pp. 91-96. DOI.org (CSL JSON), https://doi.org/10.2436/20.1501.01.13.
dc.identifier.doi10.2436/20.1501.01.13
dc.identifier.issn1139-6709
dc.identifier.officialurlhttps://doi.org/10.2436/20.1501.01.13
dc.identifier.relatedurlhttps://dialnet.unirioja.es/servlet/articulo?codigo=2935789
dc.identifier.urihttps://hdl.handle.net/20.500.14352/95879
dc.issue.number2
dc.journal.titleINTERNATIONAL MICROBIOLOGY
dc.language.isoeng
dc.page.final96
dc.page.initial91
dc.publisherSpringer
dc.rights.accessRightsopen access
dc.subject.cdu579.68
dc.subject.keywordTetrahymena thermophila
dc.subject.keywordWaste water treatment
dc.subject.keywordFlocculation
dc.subject.keywordExtracellular polymeric substances (EPS)
dc.subject.ucmMicrobiología (Biología)
dc.subject.unesco2508.05 Hidrobiología
dc.titleCiliate contributions to bioaggregation: laboratory assays with axenic cultures of Tetrahymena thermophila
dc.typejournal article
dc.type.hasVersionVoR
dc.volume.number10
dspace.entity.typePublication
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relation.isAuthorOfPublication.latestForDiscovery6da0734a-6233-4213-bb81-2e3a6c41b089
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