Antifungal activity of Stenotrophomonas maltophilia in Stomoxys calcitranslarvae

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...

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Bibliographic Details
Main Author: Moraes,Ana Paula Rodrigues (author)
Other Authors: Videira,Sandy Sampaio (author), Bittencourt,Vânia Rita Elias Pinheiro (author), Bittencourt,Avelino José (author)
Format: article
Language:eng
Published: 2014
Subjects:
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612014000200194
Country:Brazil
Oai:oai:scielo:S1984-29612014000200194
Description
Summary: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 maceratedS. 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 againstBeauveria 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.