title: Antifungal activity of Stenotrophomonas maltophilia in Stomoxys calcitrans larvae.
abstract: The microbiota present in Stomoxys calcitrans larvae may assist their survival in contaminated environments through production of inhibitory substances. Bacteriological identification methods, the polymerase chain reaction (PCR) and scanning electron microscopy (SEM) were used to detect a bacterium naturally present in mucus and macerated S. calcitrans larvae. The antifungal activity was determined based on the results from disk diffusion tests on an artificial solid medium. The bacterium was identified as Stenotrophomonas maltophilia and presented antifungal activity against Beauveria bassiana sensu lato isolates CG 138, CG 228 and ESALQ 986. This result suggests that the larval microbiota is a factor that can compromise the use of B. bassiana s.l. fungus for biological control of S. calcitrans larvae.
authors: Departamento de Parasitologia Animal, Instituto de Veterinária, Universidade Federal Rural do Rio de Janeiro ? UFRRJ, Seropédica, RJ, Brasil.
authors: Ana Paula Rodrigues
authors: AP
authors: Moraes
authors: Embrapa Agrobiologia, Seropédica, RJ, Brasil.
authors: Sandy Sampaio
authors: SS
authors: Videira
authors: Departamento de Parasitologia Animal, Instituto de Veterinária, Universidade Federal Rural do Rio de Janeiro ? UFRRJ, Seropédica, RJ, Brasil.
authors: Vânia Rita Elias Pinheiro
authors: VR
authors: Bittencourt
authors: Departamento de Medicina e Cirurgia Veterinária, Instituto de Veterinária, Universidade Federal Rural do Rio de Janeiro ? UFRRJ, Seropédica, RJ, Brasil.
authors: Avelino José
authors: AJ
authors: Bittencourt
mesh_terms: D000818:Animals; D000935:Antifungal Agents; D007814:Larva / Q000382:microbiology; D009117:Muscidae / Q000382:microbiology*; D020615:Stenotrophomonas maltophilia / Q000502:physiology*
chemical_list: D000935:Antifungal Agents