Insects as biological models to assay spider and scorpion venom toxicity



Título del documento: Insects as biological models to assay spider and scorpion venom toxicity
Revista: The journal of venomous animals and toxins including tropical diseases
Base de datos: PERIÓDICA
Número de sistema: 000298795
ISSN: 1678-9199
Autores: 1

2
Instituciones: 1Universidade Estadual Paulista "Julio de Mesquita Filho", Centro de Estudos Ambientais, Rio Claro, Sao Paulo. Brasil
2Universidade Estadual Paulista "Julio de Mesquita Filho", Centro de Estudos de Venenos e Animais Peconhentos, Botucatu, Sao Paulo. Brasil
Año:
Volumen: 9
Número: 2
Paginación: 174-185
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Aplicado, descriptivo
Resumen en inglés This study was undertaken to develop an experimental protocol using insects as biological models to assay venom toxicity of the following spiders Loxosceles gaucho, Phoneutria nigriventer, Nephilengys cruentata and Tityus serrulatus scorpion. Three different insect species were bioassayed: Apis mellifera (Hymenoptera), Grillus assimilis (Orthoptera), and Diatraea saccharalis (Lepidoptera). Venoms were injected into the hemocele of insects with a microsyringe at concentrations that caused dose/weight-dependent effects; doses causing either paralysis (ED50) or death (LD50) were recorded for each venom and insect test-species. T. serrulatus and L. gaucho venoms were lethal to all tested species, while P. nigriventer venom caused paralysis and death, and N. cruentata venom caused only paralysis at the doses assayed. A comparison between the insect test species described above revealed that A. mellifera was highly sensitive to all venoms tested; even a tiny amount of N. cruentata non-lethal venom caused a change in the walking pattern leading to transient paralysis. D. saccharalis larvae were very resistant to all four venoms
Disciplinas: Biología
Palabras clave: Insectos,
Toxicología,
Veneno de alacrán,
Veneno de araña,
Bioensayos,
Toxicidad,
Modelos animales
Keyword: Biology,
Insects,
Toxicology,
Scorpion venom,
Spider venom,
Bioassays,
Toxicity,
Animal models
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