Composição taxonômica, funcional e molecular da microbiota planctônica: integrando diferentes níveis tróficos na ecologia aquática
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFG |
Texto Completo: | http://repositorio.bc.ufg.br/tede/handle/tede/9756 |
Resumo: | The aquatic microbiota play an important role in the ecosystems functioning. However, the factors that are associated with the structuring of microbiological communities as well as their responses to climate change are still not well understood. In addition, most evaluations do not consider the effects on different trophic levels simultaneously. This study aimed to associate taxonomic, functional and molecular knowledge on aquatic microorganisms, seeking to investigate the causes of the diversity geographic patterns as well as their responses to global warming. This work was carried out using data from 27 lakes in the Araguaia river floodplain and also by the construction of an experiment in microcosm. We found that environmental and spatial factors do not influence planktonic microbiota 18S rDNA in the lakes evaluated, although there is a high beta diversity and the composition is spatially structured along the plain. On the other hand, we found that experimentally simulated warming promotes a change in the taxonomic and functional composition of planktonic organisms, due to a species substitution and a predominance of smaller organisms. Furthermore, the microbiota of different trophic levels presents a similar response pattern to warming. These results contribute to predict how different biological levels and trophic groups of the aquatic microbiota respond to variations in environmental conditions. We highlight that this approach is relevant, because changes in the composition of communities can affect many ecosystem processes and services. |
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Nabout, João Carloshttp://lattes.cnpq.br/3335844675689429Rodrigues, Luzia CleideCarneiro, Fernanda MeloTelles, Mariana Pires de CamposBini, Luis MauricioNabout, João Carloshttp://lattes.cnpq.br/0076495289869548Machado, Karine Borges2019-06-28T12:24:32Z2019-01-24MACHADO, Karine Borges. Composição taxonômica, funcional e molecular da microbiota planctônica: integrando diferentes níveis tróficos na ecologia aquática. 2019. 188 f. Tese (Doutorado em Ecologia e Evolução) - Universidade Federal de Goiás, Goiânia, 2019.http://repositorio.bc.ufg.br/tede/handle/tede/9756The aquatic microbiota play an important role in the ecosystems functioning. However, the factors that are associated with the structuring of microbiological communities as well as their responses to climate change are still not well understood. In addition, most evaluations do not consider the effects on different trophic levels simultaneously. This study aimed to associate taxonomic, functional and molecular knowledge on aquatic microorganisms, seeking to investigate the causes of the diversity geographic patterns as well as their responses to global warming. This work was carried out using data from 27 lakes in the Araguaia river floodplain and also by the construction of an experiment in microcosm. We found that environmental and spatial factors do not influence planktonic microbiota 18S rDNA in the lakes evaluated, although there is a high beta diversity and the composition is spatially structured along the plain. On the other hand, we found that experimentally simulated warming promotes a change in the taxonomic and functional composition of planktonic organisms, due to a species substitution and a predominance of smaller organisms. Furthermore, the microbiota of different trophic levels presents a similar response pattern to warming. These results contribute to predict how different biological levels and trophic groups of the aquatic microbiota respond to variations in environmental conditions. We highlight that this approach is relevant, because changes in the composition of communities can affect many ecosystem processes and services.A microbiota aquática tem um papel relevante no funcionamento dos ecossistemas. Porém, os fatores que estão associados à estruturação das comunidades microbiológicas assim como suas respostas às mudanças climáticas ainda não estão bem esclarecidas. Além disso, a maior parte das avaliações não consideram os efeitos sobre os diferentes níveis tróficos simultaneamente. Este estudo teve como objetivo associar o conhecimento taxonômico, funcional e molecular sobre micro-organismos aquáticos, buscando investigar as causas dos padrões geográficos da sua diversidade assim como suas respostas ao aquecimento global. Este trabalho foi conduzido utilizando dados de 27 lagoas da planície de inundação do rio Araguaia e ainda pela construção de um experimento em microcosmo. Nós verificamos que fatores ambientais e espaciais não exercem influência sobre a microbiota planctônica 18S rDNA nas lagoas avaliadas, embora exista uma alta diversidade beta e a composição seja espacialmente estruturada ao longo da planície. Por outro lado, constatamos que o aquecimento simulado experimentalmente promove uma alteração na composição taxonômica e funcional dos organismos planctônicos, devido a uma substituição de espécies e ao predomínio de organismos com menor tamanho. Além disso, a microbiota de diferentes níveis tróficos apresenta um padrão de resposta similar ao aquecimento. Esses resultados contribuem para predizer como diferentes níveis biológicos e grupos tróficos da microbiota aquática respondem a variações nas condições ambientais. Essa abordagem é relevante, uma vez que modificações na composição das comunidades podem afetar inúmeros processos e serviços ecossistêmicos.Submitted by Marlene Santos (marlene.bc.ufg@gmail.com) on 2019-06-27T17:10:07Z No. of bitstreams: 2 Tese - Karine Borges Machado - 2019.pdf: 4272483 bytes, checksum: 3f27cdd0bf5ef3d3f0cea40590695a17 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2019-06-28T12:24:32Z (GMT) No. of bitstreams: 2 Tese - Karine Borges Machado - 2019.pdf: 4272483 bytes, checksum: 3f27cdd0bf5ef3d3f0cea40590695a17 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Made available in DSpace on 2019-06-28T12:24:32Z (GMT). No. of bitstreams: 2 Tese - Karine Borges Machado - 2019.pdf: 4272483 bytes, checksum: 3f27cdd0bf5ef3d3f0cea40590695a17 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2019-01-24Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESapplication/pdfporUniversidade Federal de GoiásPrograma de Pós-graduação em Ecologia e Evolução (ICB)UFGBrasilInstituto de Ciências Biológicas - ICB (RG)http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessAquecimento globalFitoplânctonMetacomunidadesProtistasGlobal warmingPhytoplanktonMetacommunitiesProtistsCIENCIAS BIOLOGICAS::ECOLOGIAComposição taxonômica, funcional e molecular da microbiota planctônica: integrando diferentes níveis tróficos na ecologia aquáticaTaxonomic, functional and molecular composition of the planktonic microbiota: integrating different trophic levels in aquatic ecologyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis-5361682850774351271600600600600-387277211782737340432634996052953650022075167498588264571reponame:Repositório Institucional da UFGinstname:Universidade Federal de Goiás (UFG)instacron:UFGLICENSElicense.txtlicense.txttext/plain; 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dc.title.eng.fl_str_mv |
Composição taxonômica, funcional e molecular da microbiota planctônica: integrando diferentes níveis tróficos na ecologia aquática |
dc.title.alternative.eng.fl_str_mv |
Taxonomic, functional and molecular composition of the planktonic microbiota: integrating different trophic levels in aquatic ecology |
title |
Composição taxonômica, funcional e molecular da microbiota planctônica: integrando diferentes níveis tróficos na ecologia aquática |
spellingShingle |
Composição taxonômica, funcional e molecular da microbiota planctônica: integrando diferentes níveis tróficos na ecologia aquática Machado, Karine Borges Aquecimento global Fitoplâncton Metacomunidades Protistas Global warming Phytoplankton Metacommunities Protists CIENCIAS BIOLOGICAS::ECOLOGIA |
title_short |
Composição taxonômica, funcional e molecular da microbiota planctônica: integrando diferentes níveis tróficos na ecologia aquática |
title_full |
Composição taxonômica, funcional e molecular da microbiota planctônica: integrando diferentes níveis tróficos na ecologia aquática |
title_fullStr |
Composição taxonômica, funcional e molecular da microbiota planctônica: integrando diferentes níveis tróficos na ecologia aquática |
title_full_unstemmed |
Composição taxonômica, funcional e molecular da microbiota planctônica: integrando diferentes níveis tróficos na ecologia aquática |
title_sort |
Composição taxonômica, funcional e molecular da microbiota planctônica: integrando diferentes níveis tróficos na ecologia aquática |
author |
Machado, Karine Borges |
author_facet |
Machado, Karine Borges |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Nabout, João Carlos |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/3335844675689429 |
dc.contributor.referee1.fl_str_mv |
Rodrigues, Luzia Cleide |
dc.contributor.referee2.fl_str_mv |
Carneiro, Fernanda Melo |
dc.contributor.referee3.fl_str_mv |
Telles, Mariana Pires de Campos |
dc.contributor.referee4.fl_str_mv |
Bini, Luis Mauricio |
dc.contributor.referee5.fl_str_mv |
Nabout, João Carlos |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/0076495289869548 |
dc.contributor.author.fl_str_mv |
Machado, Karine Borges |
contributor_str_mv |
Nabout, João Carlos Rodrigues, Luzia Cleide Carneiro, Fernanda Melo Telles, Mariana Pires de Campos Bini, Luis Mauricio Nabout, João Carlos |
dc.subject.por.fl_str_mv |
Aquecimento global Fitoplâncton Metacomunidades Protistas |
topic |
Aquecimento global Fitoplâncton Metacomunidades Protistas Global warming Phytoplankton Metacommunities Protists CIENCIAS BIOLOGICAS::ECOLOGIA |
dc.subject.eng.fl_str_mv |
Global warming Phytoplankton Metacommunities Protists |
dc.subject.cnpq.fl_str_mv |
CIENCIAS BIOLOGICAS::ECOLOGIA |
description |
The aquatic microbiota play an important role in the ecosystems functioning. However, the factors that are associated with the structuring of microbiological communities as well as their responses to climate change are still not well understood. In addition, most evaluations do not consider the effects on different trophic levels simultaneously. This study aimed to associate taxonomic, functional and molecular knowledge on aquatic microorganisms, seeking to investigate the causes of the diversity geographic patterns as well as their responses to global warming. This work was carried out using data from 27 lakes in the Araguaia river floodplain and also by the construction of an experiment in microcosm. We found that environmental and spatial factors do not influence planktonic microbiota 18S rDNA in the lakes evaluated, although there is a high beta diversity and the composition is spatially structured along the plain. On the other hand, we found that experimentally simulated warming promotes a change in the taxonomic and functional composition of planktonic organisms, due to a species substitution and a predominance of smaller organisms. Furthermore, the microbiota of different trophic levels presents a similar response pattern to warming. These results contribute to predict how different biological levels and trophic groups of the aquatic microbiota respond to variations in environmental conditions. We highlight that this approach is relevant, because changes in the composition of communities can affect many ecosystem processes and services. |
publishDate |
2019 |
dc.date.accessioned.fl_str_mv |
2019-06-28T12:24:32Z |
dc.date.issued.fl_str_mv |
2019-01-24 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
MACHADO, Karine Borges. Composição taxonômica, funcional e molecular da microbiota planctônica: integrando diferentes níveis tróficos na ecologia aquática. 2019. 188 f. Tese (Doutorado em Ecologia e Evolução) - Universidade Federal de Goiás, Goiânia, 2019. |
dc.identifier.uri.fl_str_mv |
http://repositorio.bc.ufg.br/tede/handle/tede/9756 |
identifier_str_mv |
MACHADO, Karine Borges. Composição taxonômica, funcional e molecular da microbiota planctônica: integrando diferentes níveis tróficos na ecologia aquática. 2019. 188 f. Tese (Doutorado em Ecologia e Evolução) - Universidade Federal de Goiás, Goiânia, 2019. |
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por |
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por |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ |
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openAccess |
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Universidade Federal de Goiás |
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UFG |
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Universidade Federal de Goiás |
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