Gibellula spp. associadas a aranhas da Mata do Paraíso, Viçosa-MG

• Ano de defesa: 2014
• Autor(a) principal: Costa, Pricila Palla
• Orientador(a): Pereira, Olinto Liparini
• Banca de defesa: Kasuya, Maria Catarina Megumi , Furtado, Gleiber Quintão
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Mestrado em Microbiologia Agrícola
• Departamento: Associações micorrízicas; Bactérias láticas e probióticos; Biologia molecular de fungos de interesse
• País: BR
• Palavras-chave em Português: Hypocreales; Gibellula; Aracnopatógeno; Entomopatógeno
• Palavras-chave em Inglês: Hypocreales; Gibellula; Arachnopathogen; Entomopathogen
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOSSANIDADE::MICROBIOLOGIA AGRICOLA
• Link de acesso: http://locus.ufv.br/handle/123456789/5370

Fungi belonging to the genus Gibellula are found parasitizing spiders and have wide distribution in tropical and subtropical regions of the planet. This genus is spider specific and it is believed that this specificity is related to infection mechanism that probably acts at the level of the exoskeleton. Although many reports and descriptions of Gibellula spp. in the literature, there is no approach to the ecology of these natural enemies of spiders. Moreover, the knowledge of this kind in Brazil is extremely scarce. Therefore the aim of this study was to conduct a survey of the species of Gibellula in Research, Training and Environmental Education Mata do Paraiso, Viçosa - MG station, and to make a study of classical taxonomy, and establish relationships between host-pathogen interaction. Were performed collections in different areas of the forest in order to favor the detection of greater quantity and diversity of these fungi. The mummified spiders were identified to better understand the host-pathogen relationship. Were collected a total of 79 parasitized spiders that were distributed in ten families (Anyphaenidae, Araneidae, Corinnidae, Linyphiidae, Pholcidae, Salticidae, Sparassidae, Theridiidae, Thomisidae, Zodariidae), the most frequent Anyphaenidae (25.3%) and Pholcidae (26.6 %). Of the 79 fungi specimens collected, 20 ( 25.3%) were isolated and kept in pure culture. Among them nine species of Gibellula were identified, including Gibellula dimorpha was first reported in Brazil , and five new species will be proposed.