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Titolo:
OCCURRENCE OF PARALYTIC SHELLFISH POISON IN THE STARFISH ASTERIAS-AMURENSIS IN KURE BAY, HIROSHIMA PREFECTURE, JAPAN
Autore:
ASAKAWA M; NISHIMURA F; MIYAZAWA K; NOGUCHI T;
Indirizzi:
HIROSHIMA UNIV,FAC APPL BIOL SCI HIGASHIHIROSHIMA HIROSHIMA 739 JAPAN NAGASAKI UNIV,FAC FISHERIES,LAB FOOD HYG NAGASAKI 852 JAPAN
Titolo Testata:
Toxicon
fascicolo: 7, volume: 35, anno: 1997,
pagine: 1081 - 1087
SICI:
0041-0101(1997)35:7<1081:OOPSPI>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
ALEXANDRIUM-TAMARENSE; TETRODOTOXIN; BIVALVES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
12
Recensione:
Indirizzi per estratti:
Citazione:
M. Asakawa et al., "OCCURRENCE OF PARALYTIC SHELLFISH POISON IN THE STARFISH ASTERIAS-AMURENSIS IN KURE BAY, HIROSHIMA PREFECTURE, JAPAN", Toxicon, 35(7), 1997, pp. 1081-1087

Abstract

In May 1996, during surveillance on the toxicity of invertebrates such as bivalves inhabiting the coasts of Hiroshima Bay, the starfish Asterias amurensis collected in the estuary of the Nikoh River was found to contain toxins which showed strong paralytic action in mice; the maximum toxicity (as paralytic shellfish poison, PSP) was 8.0 MU/g for whole body and 28.7 MU/g for viscera throughout the monitoring period, March to July 1996. Attempts were made to identify the paralytic toxins in the starfish. They were extracted with 80% ethanol acidified withacetic acid, followed by defatting with dichloromethane. The aqueous layer obtained was treated with activated charcoal and then applied toa Sep-Pak Cls cartridge. The unbound toxic fraction was analyzed by high-performance liquid chromatography techniques. The starfish toxin was rather unexpectedly identified as PSP. It was comprised of high toxic components (gonyautoxin-1; GTX1, GTX2, GTX3, GTX4, decarbamoyl-GTX3; dcGTX3 and dcSTX) as the major components, which accounted for approximately 77 mole% of all components, along with protogonyautoxin-1, 2,3 and 4 (PX1-4), which are N-sulfocarbamoyl derivatives. Of the high toxic components, GTX1 was present in the largest amounts. It was concluded that the toxin of starfish collected in the estuary of Nikoh River in May 1996 consisted of PSP, which supposedly came via the food chain from toxic bivalves living in the same area, To our knowledge, this is the first report of the occurrence of PSP in starfish. (C) 1997 Elsevier Science Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 00:39:43