| Title: | Beauveria bassiana infection alters colony development and defensive secretions of the beetles Tribolium castaneum and Ulomoides dermestoides (Coleoptera: Tenebrionidae) |
| Author(s): | Pedrini N; Villaverde ML; Fuse CB; Dal Bello GM; Juarez MP; |
| Address: | "Instituto de Investigaciones Bioquimicas de La Plata, CONICET, Facultad de Ciencias Medicas, UNLP, calles 60 y 120 (1900) La Plata, Argentina" |
| ISSN/ISBN: | 0022-0493 (Print) 0022-0493 (Linking) |
| Abstract: | "We studied the effect of the entomopathogenic fungus Beauveria bassiana strain GHA on a) colony development of the beetles Tribolium castaneum (Herbst) and Ulomoides dermestoides (Fairmaire) (Coleoptera: Tenebrionidae) under laboratory conditions; and 2) the volatile blend released by both beetles, containing defensive pheromones, by using the solid phase microextraction technique. Colony development of both species was strongly altered 3 mo after treatment with B. bassiana, showing a significant reduction in progeny of 37.5% for T. castaneum and 50.0% for U. dermestoides. We also showed that the volatiles released by T. castaneum diminished close to 20% compared with those of healthy beetles, whereas in U. dermestoides secretions dramatically dropped to 5%, 7 d after immersion in 1 x 10(9) conidia per ml. These results suggest that after infection events take place, fungus-induced diminished secretion of the defensive pheromones may be a physiologic clue for behavioral changes in infected beetles" |
| Keywords: | "Animals Beauveria/*physiology Behavior, Animal Coleoptera/*microbiology Integumentary System/physiology Species Specificity;" |
| Notes: | "MedlinePedrini, N Villaverde, M L Fuse, C B Dal Bello, G M Juarez, M P eng Research Support, Non-U.S. Gov't England 2010/09/23 J Econ Entomol. 2010 Aug; 103(4):1094-9. doi: 10.1603/ec10072" |
