Características de los venenos de escorpiones

A scorpion uses its venom to capture its prey, or as a defense system when it feels threatened. This substance is an apocrine secretion, which is violently ejected by the stinger located in the metasoma of the scorpion, which a lso houses the glands responsible for producing it and a holl...

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Detalles Bibliográficos
Autores principales: Rincón Cortés, Clara Andrea, Landaeta Valero, Eliana Maritza, Rodríguez Ríos, Lina María
Formato: Working Paper
Lenguaje:Español
Publicado: Universidad de Belgrano. Red Latinoamericana de Cooperación Universitaria. RLCU 2013
Materias:
Escorpiones
veneno
péptidos
toxinas
Scorpions
venom
peptides
toxins
Acceso en línea:http://repositorio.ub.edu.ar/handle/123456789/1953
Aporte de:
Repositorio Institucional - Universidad de Belgrano (UB) de Universidad de Belgrano
id I36-R142-123456789-1953
record_format dspace
institution Universidad de Belgrano
institution_str I-36
repository_str R-142
collection Repositorio Institucional - Universidad de Belgrano (UB)
language Español
topic Escorpiones
veneno
péptidos
toxinas
Scorpions
venom
peptides
toxins
spellingShingle Escorpiones
veneno
péptidos
toxinas
Scorpions
venom
peptides
toxins
Rincón Cortés, Clara Andrea
Landaeta Valero, Eliana Maritza
Rodríguez Ríos, Lina María
Características de los venenos de escorpiones
topic_facet Escorpiones
veneno
péptidos
toxinas
Scorpions
venom
peptides
toxins
description A scorpion uses its venom to capture its prey, or as a defense system when it feels threatened. This substance is an apocrine secretion, which is violently ejected by the stinger located in the metasoma of the scorpion, which a lso houses the glands responsible for producing it and a hollow spine which provides its venom. As for the composition, the venom has about 80 toxins, characterized by being low molecular weight peptides that recognize ion channels and modify the cellular excitability that may or may not cause toxicity in mammals. Some peptides characterized from scorpion venoms have been classified into three groups: short-chain neurotoxins from 30 to 40 amino acids, medium chain from 60 to 70 amino acids and long chain. Medium-chain neurotoxins are those with greater medical importance because they affect mammals, distinguishing two classes, alpha and beta, according to their pharmacological function of Na + channels. The alpha type have been isolated from the venom of scorpions of the Middle East and North Africa and the beta-type scorpion in North and South America. There are also peptides that are harmless to mammals, but are harmful to crustaceans, spiders and insects, for example the AHIT1 excitatory toxins, BjTl1 y Lqq Tl1, which produce paralysis on the Sarcophaga falculatelarva. Thus demonstrated that scorpion toxins are selective for insects and may be candidates for the preparation of various biological control products.
format Working Paper
author Rincón Cortés, Clara Andrea
Landaeta Valero, Eliana Maritza
Rodríguez Ríos, Lina María
author_facet Rincón Cortés, Clara Andrea
Landaeta Valero, Eliana Maritza
Rodríguez Ríos, Lina María
author_sort Rincón Cortés, Clara Andrea
title Características de los venenos de escorpiones
title_short Características de los venenos de escorpiones
title_full Características de los venenos de escorpiones
title_fullStr Características de los venenos de escorpiones
title_full_unstemmed Características de los venenos de escorpiones
title_sort características de los venenos de escorpiones
publisher Universidad de Belgrano. Red Latinoamericana de Cooperación Universitaria. RLCU
publishDate 2013
url http://repositorio.ub.edu.ar/handle/123456789/1953
work_keys_str_mv AT rinconcortesclaraandrea caracteristicasdelosvenenosdeescorpiones
AT landaetavaleroelianamaritza caracteristicasdelosvenenosdeescorpiones
AT rodriguezrioslinamaria caracteristicasdelosvenenosdeescorpiones
bdutipo_str Repositorios
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