Bacillus thuringiensis in caterpillars and associated materials collected from protected tropical forests in northwestern Costa Rica
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| Autores: | , , , |
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| 格式: | artículo original |
| 状态: | Versión publicada |
| Fecha de Publicación: | 2006 |
| 实物特征: | Bacillus thuringiensis (Bt) synthesizes crystalline inclusions that are toxic to caterpillars (Lepidoptera) and other orders of invertebrates. Materials associated with 37 caterpillars from 16 species, collected while feed-ing on 15 different species of host plants in dry, cloud and rain forests located in the Área de Conservación Guanacaste in northwestern Costa Rica, were examined for the presence of Bt. From a total of 101 derived samples, 25 Bt isolates were cultured: 56% from host plant leaves, 8% from caterpillar guts and 36% from cater-pillar fecal pellets. Bt was isolated from at least one sample in 38% of the systems constituted by the food plant, gut and fecal pellets corresponding to a single caterpillar. Four different morphologies of crystalline inclusions were observed, with bipyramidal and irregular crystal morphologies being the most prevalent. |
| País: | Portal de Revistas UCR |
| 机构: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| 语言: | Español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/13867 |
| 在线阅读: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/13867 |
| Palabra clave: | Bacillus thuringiensis larvas de mariposa plantas hospederas tractos intestinales de insectos material fecal áreas protegidas |