A fast centrifuge method for nematocyst isolation from Pelagia noctiluca Forskal (Cnidaria: Scyphozoa).
Riv Biol
; 97(3): 505-15, 2004.
Article
em En
| MEDLINE
| ID: mdl-15754598
ABSTRACT
Nematocyst isolation from surrounding tissue is an important step to characterize Cnidarian venom. Although several protocols have been used to extract venoms from cnidarian tissues, the complete isolation of nematocysts from tissue is still difficult. The goal of the present work was to evaluate the effectiveness of three different media, Percoll, Ficoll and Methylcellulose in isolating nematocysts from Pelagia noctiluca tentacles by centrifugation. The complete sedimentation of nematocysts and tissue fragments to the bottom of the test tubes was observed in Ficoll and Methylcellulose suspensions. The best result was obtained using a discontinuous density gradient of Percoll three types of nematocysts were concentrated in three different fractions along the density gradient. Protein assay and preliminary chromatographic analyses confirmed these results.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Centrifugação com Gradiente de Concentração
/
Venenos de Cnidários
/
Cifozoários
Tipo de estudo:
Evaluation_studies
Limite:
Animals
Idioma:
En
Revista:
Riv Biol
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
Itália