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Titolo:
The effects of a cyanobacterial crude extract on different aquatic organisms: Evidence for cyanobacterial toxin modulating factors
Autore:
Pietsch, C; Wiegand, C; Ame, MV; Nicklisch, A; Wunderlin, D; Pflugmacher, S;
Indirizzi:
Inst Freshwater Ecol & Inland Fisheries, D-12561 Berlin, Germany Inst Freshwater Ecol & Inland Fisheries Berlin Germany D-12561 , Germany Univ Nacl Cordoba, Fac Ciencias Quim, RA-5000 Cordoba, Argentina Univ NaclCordoba Cordoba Argentina RA-5000 , RA-5000 Cordoba, Argentina
Titolo Testata:
ENVIRONMENTAL TOXICOLOGY
fascicolo: 6, volume: 16, anno: 2001,
pagine: 535 - 542
SICI:
1520-4081(200112)16:6<535:TEOACC>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
ZEBRAFISH DANIO-RERIO; DETOXICATION ENZYMES; MICROCYSTIN-LR; ENDOTOXIN; WATER;
Keywords:
cyanobacterial toxins; glutathione S-transferase; peroxidase; photosynthesis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Pflugmacher, S Inst Freshwater Ecol & Inland Fisheries, Muggelseedamm 3201, D-12561 Berlin, Germany Inst Freshwater Ecol & Inland Fisheries Muggelseedamm 3201 Berlin Germany D-12561
Citazione:
C. Pietsch et al., "The effects of a cyanobacterial crude extract on different aquatic organisms: Evidence for cyanobacterial toxin modulating factors", ENVIRON TOX, 16(6), 2001, pp. 535-542

Abstract

In an aquatic ecosystem, during cyanobacterial bloom lysis, a mixture of toxins and other cyanobacterial and bacterial components will be present in the water, acting on aquatic organisms. Most of the research into toxic effects of cyanobacteria has involved the use of purified toxins. In this study, the "real-life" situation of a cyanobacterial lysis event was investigated. For this purpose, intact cells from a natural cyanobacterial bloom fromLake Muggelsee, Berlin, were taken and the cells were broken by repeated freeze/thaw cycles. This crude extract was used to expose several aquatic organisms ranging from microalgae (Scenedesmus armatus), macrophyte (Ceratophyllum demersum), invertebrate (Chaoborus crystallinus) up to fish eggs (Danio rerio) to look at several physiological parameters such as detoxication enzyme activity and, in the case of the microalgae and the macrophyte, alsothe effect on activity of photosynthesis. In all the tests, the cyanobacterial crude extract caused stronger effects than the pure cyanobacterial toxins used in equivalent concentrations. (C) 2001 by John Wiley & Sons, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/03/20 alle ore 19:37:05