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Assessment of Rhodopirellula rubra as a supplementary and nutritional food source to the microcrustacean Daphnia magna

2019Journal article Restricted access
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dc.contributor.authorMarinho, Maria da Conceição
dc.contributor.authorLage, Olga Maria
dc.contributor.authorSousa, Carla D.
dc.contributor.authorCatita, José
dc.contributor.authorAntunes, Sara C.
dc.date.accessioned2022-01-31T12:44:40Z
dc.date.available2022-01-31T12:44:40Z
dc.date.issued2019
dc.description.abstractThe daily use of the planctomycete Rhodopirellula rubra as an alternative or supplementary food source for Daphnia magna and its feasibility in the nutrition of transgenerational populations were studied. The life history parameters, fatty acids (saturated, mono- and polyunsaturated; SFAs, MUFAs and PUFAs), glycogen and protein contents of organisms during feeding assays and of the first generation were analysed. An increase in the yields of D. magna with the increase of the cell concentration of R. rubra was evident, but overall, bacteria supplied as the only food source was nutritionally insufficient as observed for all the parameters analysed. However, when R. rubra was added as supplement to the microalgae Raphidocelis subcapitata a significant improvement in the life history parameters was observed namely in the reproductive output and the somatic growth rate. The identified SFAs, MUFAs and PUFAs were the fatty acids more abundant in daphniids, and the feed regimens influenced daphniids fatty acid profiles. Additionally, the mixed diet resulted in a larger number and size of offspring in the different F1 broods as also observed with the results of F0 generation. The pink colouration present in D. magna body and eggs confirmed that bacteria were absorbed, the pigment(s) retained and passed on to the next generation. Our results showed that R. rubra can play an essential role in D. magna diet as a nutritional supplement showing potential biotechnological applications.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationda Conceição Marinho M, Lage OM, Sousa CD, Catita J, Antunes SC. Assessment of Rhodopirellula rubra as a supplementary and nutritional food source to the microcrustacean Daphnia magna. Antonie Van Leeuwenhoek. 2019 Aug;112(8):1231-1243. doi: 10.1007/s10482-019-01255-x. Epub 2019 Mar 11. PMID: 30859498.pt_PT
dc.identifier.doi10.1007/s10482-019-01255-xpt_PT
dc.identifier.issn0003-6072
dc.identifier.pmid30859498
dc.identifier.urihttp://hdl.handle.net/10284/10681
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.subjectDaphniapt_PT
dc.subjectPlanctomycetespt_PT
dc.subjectRhodopirelulla rubrapt_PT
dc.subjectFatty acidspt_PT
dc.subjectGlycogenpt_PT
dc.subjectProteinpt_PT
dc.subjectFecunditypt_PT
dc.titleAssessment of Rhodopirellula rubra as a supplementary and nutritional food source to the microcrustacean Daphnia magnapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1243pt_PT
oaire.citation.issue8pt_PT
oaire.citation.startPage1231pt_PT
oaire.citation.titleAntonie van Leeuwenhoekpt_PT
oaire.citation.volume112pt_PT
person.familyNameMorais Catita
person.givenNameJose Antonio
person.identifierJose Catita
person.identifier.ciencia-idB41E-3287-E706
person.identifier.orcid0000-0001-7270-5702
person.identifier.scopus-author-id6507275921
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication24bb2971-32ae-429b-b397-145dacb66a5a
relation.isAuthorOfPublication.latestForDiscovery24bb2971-32ae-429b-b397-145dacb66a5a

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