Bacteria–algae association in batch cultures of phytoplankton from a tropical reservoir: the significance of algal carbohydrates
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/724 |
Resumo: | The dissolved organic matter, especially carbohydrates, released by phytoplanktonic organisms may be ecologically important, through its influence on carbon cycling and microbial diversity. Here axenic cultures of three phytoplanktonic species, Cryptomonas tetrapyrenoidosa (Cryptophyceae), Staurastrum orbiculare (Zygnematophyceae) and Thalassiosira duostra (Bacillariophyceae), were inoculated with a microbial community from the same habitat in which the algae had been isolated (a tropical reservoir). Replicate cultures were not inoculated. 2. In both axenic and co-inoculated cultures, phytoplanktonic density and extracellular carbohydrate production were monitored microscopically and by high performance liquid chromatography with a pulse amperometric detector, respectively. Bacterial population density was also monitored by epifluorescence microscope in the microbial co-inoculated cultures. 3. Both bacterial and phytoplanktonic densities increased for 11 days in all cases. The use of extracellular carbohydrates by bacteria was also showed for all phytoplanktonic species. Of the three species of phytoplankton, only T. duostra had a faster population growth in the presence of bacteria, and reached a higher biomass than in axenic culture. |
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Bacteria–algae association in batch cultures of phytoplankton from a tropical reservoir: the significance of algal carbohydratesAssociationBacteriaCarbohydrateCulturePhytoplanktonThe dissolved organic matter, especially carbohydrates, released by phytoplanktonic organisms may be ecologically important, through its influence on carbon cycling and microbial diversity. Here axenic cultures of three phytoplanktonic species, Cryptomonas tetrapyrenoidosa (Cryptophyceae), Staurastrum orbiculare (Zygnematophyceae) and Thalassiosira duostra (Bacillariophyceae), were inoculated with a microbial community from the same habitat in which the algae had been isolated (a tropical reservoir). Replicate cultures were not inoculated. 2. In both axenic and co-inoculated cultures, phytoplanktonic density and extracellular carbohydrate production were monitored microscopically and by high performance liquid chromatography with a pulse amperometric detector, respectively. Bacterial population density was also monitored by epifluorescence microscope in the microbial co-inoculated cultures. 3. Both bacterial and phytoplanktonic densities increased for 11 days in all cases. The use of extracellular carbohydrates by bacteria was also showed for all phytoplanktonic species. Of the three species of phytoplankton, only T. duostra had a faster population growth in the presence of bacteria, and reached a higher biomass than in axenic culture.2011-06-17T04:21:18Z2011-06-17T04:21:18Z2007info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfGIROLDO, Danilo; ORTOLANO, Pedro I. C. ; VIEIRA, Armando A. H. . Bacteria–algae association in batch cultures of phytoplankton from a tropical reservoir: the significance of algal carbohydrates. Freshwater Biology, [S. l.], v. 52, p. 1281-1289, 2007. Disponível em: <http://www.aseanbiodiversity.info/Abstract/51008963.pdf>. Acesso em: 14 jun. 2011.0046-5070http://repositorio.furg.br/handle/1/724engGiroldo, DaniloOrtolano, Pedro Ivo CoelhoVieira, Armando Augusto Henriquesinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2011-08-02T23:12:44Zoai:repositorio.furg.br:1/724Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2011-08-02T23:12:44Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
Bacteria–algae association in batch cultures of phytoplankton from a tropical reservoir: the significance of algal carbohydrates |
title |
Bacteria–algae association in batch cultures of phytoplankton from a tropical reservoir: the significance of algal carbohydrates |
spellingShingle |
Bacteria–algae association in batch cultures of phytoplankton from a tropical reservoir: the significance of algal carbohydrates Giroldo, Danilo Association Bacteria Carbohydrate Culture Phytoplankton |
title_short |
Bacteria–algae association in batch cultures of phytoplankton from a tropical reservoir: the significance of algal carbohydrates |
title_full |
Bacteria–algae association in batch cultures of phytoplankton from a tropical reservoir: the significance of algal carbohydrates |
title_fullStr |
Bacteria–algae association in batch cultures of phytoplankton from a tropical reservoir: the significance of algal carbohydrates |
title_full_unstemmed |
Bacteria–algae association in batch cultures of phytoplankton from a tropical reservoir: the significance of algal carbohydrates |
title_sort |
Bacteria–algae association in batch cultures of phytoplankton from a tropical reservoir: the significance of algal carbohydrates |
author |
Giroldo, Danilo |
author_facet |
Giroldo, Danilo Ortolano, Pedro Ivo Coelho Vieira, Armando Augusto Henriques |
author_role |
author |
author2 |
Ortolano, Pedro Ivo Coelho Vieira, Armando Augusto Henriques |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Giroldo, Danilo Ortolano, Pedro Ivo Coelho Vieira, Armando Augusto Henriques |
dc.subject.por.fl_str_mv |
Association Bacteria Carbohydrate Culture Phytoplankton |
topic |
Association Bacteria Carbohydrate Culture Phytoplankton |
description |
The dissolved organic matter, especially carbohydrates, released by phytoplanktonic organisms may be ecologically important, through its influence on carbon cycling and microbial diversity. Here axenic cultures of three phytoplanktonic species, Cryptomonas tetrapyrenoidosa (Cryptophyceae), Staurastrum orbiculare (Zygnematophyceae) and Thalassiosira duostra (Bacillariophyceae), were inoculated with a microbial community from the same habitat in which the algae had been isolated (a tropical reservoir). Replicate cultures were not inoculated. 2. In both axenic and co-inoculated cultures, phytoplanktonic density and extracellular carbohydrate production were monitored microscopically and by high performance liquid chromatography with a pulse amperometric detector, respectively. Bacterial population density was also monitored by epifluorescence microscope in the microbial co-inoculated cultures. 3. Both bacterial and phytoplanktonic densities increased for 11 days in all cases. The use of extracellular carbohydrates by bacteria was also showed for all phytoplanktonic species. Of the three species of phytoplankton, only T. duostra had a faster population growth in the presence of bacteria, and reached a higher biomass than in axenic culture. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007 2011-06-17T04:21:18Z 2011-06-17T04:21:18Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
GIROLDO, Danilo; ORTOLANO, Pedro I. C. ; VIEIRA, Armando A. H. . Bacteria–algae association in batch cultures of phytoplankton from a tropical reservoir: the significance of algal carbohydrates. Freshwater Biology, [S. l.], v. 52, p. 1281-1289, 2007. Disponível em: <http://www.aseanbiodiversity.info/Abstract/51008963.pdf>. Acesso em: 14 jun. 2011. 0046-5070 http://repositorio.furg.br/handle/1/724 |
identifier_str_mv |
GIROLDO, Danilo; ORTOLANO, Pedro I. C. ; VIEIRA, Armando A. H. . Bacteria–algae association in batch cultures of phytoplankton from a tropical reservoir: the significance of algal carbohydrates. Freshwater Biology, [S. l.], v. 52, p. 1281-1289, 2007. Disponível em: <http://www.aseanbiodiversity.info/Abstract/51008963.pdf>. Acesso em: 14 jun. 2011. 0046-5070 |
url |
http://repositorio.furg.br/handle/1/724 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da FURG (RI FURG) instname:Universidade Federal do Rio Grande (FURG) instacron:FURG |
instname_str |
Universidade Federal do Rio Grande (FURG) |
instacron_str |
FURG |
institution |
FURG |
reponame_str |
Repositório Institucional da FURG (RI FURG) |
collection |
Repositório Institucional da FURG (RI FURG) |
repository.name.fl_str_mv |
Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG) |
repository.mail.fl_str_mv |
|
_version_ |
1807384354867904512 |