Consulta: subjectFacets:"Ascosphaera apis"
Registros recuperados: 2
Data/hora: 02/06/2024 13:00:48

Resistance to Chalkbrood Disease in Apis mellifera L. (Hymenoptera: Apidae) Colonies with Different Hygienic Behaviour
Provedor de dados: Neotropical Entomology
Autores: Invernizzi,C; Rivas,F; Bettucci,L.
Chalkbrood disease affects the larvae of honeybees Apis mellifera L. and is caused by the fungus Ascosphaera apis. Infected larvae die when they are stretched in the cap cell and suffer a gradual hardening that ends in a very hard structure (mummie). Several studies have demonstrated that colonies that express an efficient hygienic behaviour (uncapping of cell and subsequent removal of dead brood) exhibit a higher resistance to the disease. However, it remains unclear whether the advantage of hygienic colonies over less hygienic ones lies in the ability to remove mummies or in the early detection of infected larvae and its cannibalization before they harden. To elucidate this aspect, the hygienic behaviour of 24 colonies, which were subsequently provided...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Honey bee; Ascosphaera apis; Larva; Selection.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000100004

Macelignan inhibits bee pathogenic fungi Ascophaera apis growth through HOG1 pathway
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Shin,Y.K.; Kim,K.Y.
Ascosphaera apis is a bee pathogen that causes bee larvae infection disease, to which treatment is not yet well investigated. The aim of this study was to investigate antifungal susceptibility in vitro against A. apis and to identify a new antifungal agent for this pathogen through minimal inhibitory concentration (MIC) assay and western blot analysis. Macelignan had 1.56 and 3.125 μg/mL MIC against A. apis after 24 and 48 h, respectively, exhibiting the strongest growth inhibition against A. apis among the tested compounds (corosolic acid, dehydrocostus lactone, loganic acid, tracheloside, fangchinoline and emodin-8-O-β-D-glucopyranoside). Furthermore, macelignan showed a narrow-ranged spectrum against various fungal strains without any mammalian cell...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bee; Ascosphaera apis; Macelignan; Antifungal agent; HOG1.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000700607