Toxic cyanobacteria strains isolated from blooms in the Guadiana River (southwestern Spain)

This paper describes the occurrence of toxic cyanobacteria along the Guadiana River over its course between Mérida and Badajoz (Extremadura, Spain). Water sampling for phytoplankton quantification and toxin analysis was carried out regularly between 1999 and 2001 in six different locations, includin...

Descripción completa

Detalles Bibliográficos
Autores: Moreno Navarro, Isabel María, Pereira, Paulo, Franca, Susana, Cameán Fernández, Ana María
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2004
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/132335
Acceso en línea:https://hdl.handle.net/11441/132335
https://doi.org/10.4067/S0716-97602004000300006
Access Level:acceso abierto
Palabra clave:Cyanobacteria
Microcystins
Guadiana
Spain
id ES_32fd30ec01644581eee495d7bad859cd
oai_identifier_str oai:idus.us.es:11441/132335
network_acronym_str ES
network_name_str España
repository_id_str
spelling Toxic cyanobacteria strains isolated from blooms in the Guadiana River (southwestern Spain)Moreno Navarro, Isabel MaríaPereira, PauloFranca, SusanaCameán Fernández, Ana MaríaCyanobacteriaMicrocystinsGuadianaSpainThis paper describes the occurrence of toxic cyanobacteria along the Guadiana River over its course between Mérida and Badajoz (Extremadura, Spain). Water sampling for phytoplankton quantification and toxin analysis was carried out regularly between 1999 and 2001 in six different locations, including two shallow, slow-flowing river sites, two streamed river sites and two drinking water reservoirs. The cyanobacterial community differed significantly between these locations, especially during the summer. The predominant genera were Microcystis, Oscillatoria, Aphanizomenon and Anabaena. Using an ELISA assay the total microcystin contents of natural water samples from the most eutrophic locations ranged from 0.10 – 21.86 µg mcyst-LR equivalent·L-1 in Valdelacalzada and 0.10-11.3 µg mcyst-LR equivalent·L-1 in Vitonogales, and a seasonal variation of toxin content was observed. The amount of microcystins produced by each strain was determined by ELISA assay and the detection and identification of microcystin variants of three toxic strains of Microcystis aeruginosa was performed by high performance liquid chromatography (HPLC). The analysis of microcystins of the cultured strains revealed that toxin production was variable among different strains of M. aeruginosa isolated either from different blooms or from the same bloom.Junta de Andalucía (CTS358)Sociedad Biológica de ChileNutrición y Bromatología, Toxicología y Medicina LegalJunta de Andalucía2004info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/132335https://doi.org/10.4067/S0716-97602004000300006reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésBiological Research, 37 (3), 405-417.CTS358https://dx.doi.org/10.4067/S0716-97602004000300006info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1323352026-06-17T12:51:07Z
dc.title.none.fl_str_mv Toxic cyanobacteria strains isolated from blooms in the Guadiana River (southwestern Spain)
title Toxic cyanobacteria strains isolated from blooms in the Guadiana River (southwestern Spain)
spellingShingle Toxic cyanobacteria strains isolated from blooms in the Guadiana River (southwestern Spain)
Moreno Navarro, Isabel María
Cyanobacteria
Microcystins
Guadiana
Spain
title_short Toxic cyanobacteria strains isolated from blooms in the Guadiana River (southwestern Spain)
title_full Toxic cyanobacteria strains isolated from blooms in the Guadiana River (southwestern Spain)
title_fullStr Toxic cyanobacteria strains isolated from blooms in the Guadiana River (southwestern Spain)
title_full_unstemmed Toxic cyanobacteria strains isolated from blooms in the Guadiana River (southwestern Spain)
title_sort Toxic cyanobacteria strains isolated from blooms in the Guadiana River (southwestern Spain)
dc.creator.none.fl_str_mv Moreno Navarro, Isabel María
Pereira, Paulo
Franca, Susana
Cameán Fernández, Ana María
author Moreno Navarro, Isabel María
author_facet Moreno Navarro, Isabel María
Pereira, Paulo
Franca, Susana
Cameán Fernández, Ana María
author_role author
author2 Pereira, Paulo
Franca, Susana
Cameán Fernández, Ana María
author2_role author
author
author
dc.contributor.none.fl_str_mv Nutrición y Bromatología, Toxicología y Medicina Legal
Junta de Andalucía
dc.subject.none.fl_str_mv Cyanobacteria
Microcystins
Guadiana
Spain
topic Cyanobacteria
Microcystins
Guadiana
Spain
description This paper describes the occurrence of toxic cyanobacteria along the Guadiana River over its course between Mérida and Badajoz (Extremadura, Spain). Water sampling for phytoplankton quantification and toxin analysis was carried out regularly between 1999 and 2001 in six different locations, including two shallow, slow-flowing river sites, two streamed river sites and two drinking water reservoirs. The cyanobacterial community differed significantly between these locations, especially during the summer. The predominant genera were Microcystis, Oscillatoria, Aphanizomenon and Anabaena. Using an ELISA assay the total microcystin contents of natural water samples from the most eutrophic locations ranged from 0.10 – 21.86 µg mcyst-LR equivalent·L-1 in Valdelacalzada and 0.10-11.3 µg mcyst-LR equivalent·L-1 in Vitonogales, and a seasonal variation of toxin content was observed. The amount of microcystins produced by each strain was determined by ELISA assay and the detection and identification of microcystin variants of three toxic strains of Microcystis aeruginosa was performed by high performance liquid chromatography (HPLC). The analysis of microcystins of the cultured strains revealed that toxin production was variable among different strains of M. aeruginosa isolated either from different blooms or from the same bloom.
publishDate 2004
dc.date.none.fl_str_mv 2004
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/132335
https://doi.org/10.4067/S0716-97602004000300006
url https://hdl.handle.net/11441/132335
https://doi.org/10.4067/S0716-97602004000300006
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Biological Research, 37 (3), 405-417.
CTS358
https://dx.doi.org/10.4067/S0716-97602004000300006
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Sociedad Biológica de Chile
publisher.none.fl_str_mv Sociedad Biológica de Chile
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869405717498167296
score 15.300724

Similares en LA Referencia