Occurrence of <i>Microcystis aeruginosa</i> and microcystins in Río de la Plata river (Argentina)

This paper is the first report on microcystins producer blooms of Microcystis aeruginosa in the Argentinean coast of the Río de la Plata river, the most important drinking water supply of Argentina. The distribution of toxic cyanobacterium Microcystis cf. aeruginosa blooms in the Argentinean coast o...

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Autores principales: Andrinolo, Darío, Pereira, Paulo, Giannuzzi, Leda, Aura, Claudia, Massera, Silvia, Caneo, Mariela, Caixach, Josep, Barco, Mónica, Echenique, Ricardo Omar
Formato: Articulo
Lenguaje:Inglés
Publicado: 2007
Materias:
Ciencias Exactas
Microcistys aeruginosa
Bloom
Rio de la Plata
Hepatotoxins
Microcystin
HPLC-Diode array
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/105889
http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-37432007000100002
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-105889
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Microcistys aeruginosa
Bloom
Rio de la Plata
Hepatotoxins
Microcystin
HPLC-Diode array
spellingShingle Ciencias Exactas
Microcistys aeruginosa
Bloom
Rio de la Plata
Hepatotoxins
Microcystin
HPLC-Diode array
Andrinolo, Darío
Pereira, Paulo
Giannuzzi, Leda
Aura, Claudia
Massera, Silvia
Caneo, Mariela
Caixach, Josep
Barco, Mónica
Echenique, Ricardo Omar
Occurrence of <i>Microcystis aeruginosa</i> and microcystins in Río de la Plata river (Argentina)
topic_facet Ciencias Exactas
Microcistys aeruginosa
Bloom
Rio de la Plata
Hepatotoxins
Microcystin
HPLC-Diode array
description This paper is the first report on microcystins producer blooms of Microcystis aeruginosa in the Argentinean coast of the Río de la Plata river, the most important drinking water supply of Argentina. The distribution of toxic cyanobacterium Microcystis cf. aeruginosa blooms in the Argentinean coast of the Rio de la Plata river was studied from December 2003 and January 2006. Microcystis aeruginosa persisted in the river with values ranged between 0 - 7.8 104 cells ml-1. Samples of two Microcystis aeruginosa water blooms were collected at La Plata river and were analyzed by the mouse bioassay and by high-performance liquid chromatography with Diode-array and MS detector. The samples showed high hepatotoxicity in mouse bioassay and, in accordance, important amount of microcystins. The bloom samples contained microcystins LR and a variant of microcystin with a molecular ion [M+H]+= 1037.8 m/z as major components. The total toxin content found in these samples was 0.94μg/mg and 0.69μg/mg of lyophilised cells. We conclude that the presence of toxic clones of Microcystis aeruginosa in the Argentinean coast of the Río de la Plata is an actual sanitary and environmental problem and that further studies are necessary to make the risk assessment.
format Articulo
Articulo
author Andrinolo, Darío
Pereira, Paulo
Giannuzzi, Leda
Aura, Claudia
Massera, Silvia
Caneo, Mariela
Caixach, Josep
Barco, Mónica
Echenique, Ricardo Omar
author_facet Andrinolo, Darío
Pereira, Paulo
Giannuzzi, Leda
Aura, Claudia
Massera, Silvia
Caneo, Mariela
Caixach, Josep
Barco, Mónica
Echenique, Ricardo Omar
author_sort Andrinolo, Darío
title Occurrence of <i>Microcystis aeruginosa</i> and microcystins in Río de la Plata river (Argentina)
title_short Occurrence of <i>Microcystis aeruginosa</i> and microcystins in Río de la Plata river (Argentina)
title_full Occurrence of <i>Microcystis aeruginosa</i> and microcystins in Río de la Plata river (Argentina)
title_fullStr Occurrence of <i>Microcystis aeruginosa</i> and microcystins in Río de la Plata river (Argentina)
title_full_unstemmed Occurrence of <i>Microcystis aeruginosa</i> and microcystins in Río de la Plata river (Argentina)
title_sort occurrence of <i>microcystis aeruginosa</i> and microcystins in río de la plata river (argentina)
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/105889
http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-37432007000100002
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