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Title: Bacterial flora on Cascades frogs in the Klamath Mountains of California

Author: Pope, Karen;

Date: 2013

Source: Comparative Immunology, Microbiology and Infectious Diseases 36(6): 591-598

Publication Series: Scientific Journal (JRNL)

Description: Amphibians are experiencing global declines due in part to the infectious disease chytridiomycosis. Some symbiotic bacteria residents on frog skin have been shown to inhibit the growth of Batrachochytrium dendrobatitis (Bd) but few studies have attempted to fully describe the resident bacterial flora of frog skin. We cultured and sequenced 130 bacterial isolates from frogs collected from the California Klamath Range, recovering predominantly Gram-negative bacteria from 20 higher order taxa and 31 genera. There were also a large number of unclassifiable isolates. Forty-three isolates were assessed for their ability to inhibit the growth of Bd in vitro; of these, two had strong and three had slight anti-Bd activity. We suggest that many bacterial species may play a secondary role in Bd resistance, acting synergistically with inhibitory species. Future research is required in order to characterize these interactions. Understanding the relationships between bacterial strains may be important in predicting and managing the effects of future anti-Bd treatments such as antimicrobial compounds or probiotic bacteria.

Keywords: Bacteria, Batrachochytrium dendrobatidis, Frog, Innate immunity, Biofilm, Chytrid

Publication Notes:

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  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

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Roth, Tara; Foley Janet; Worth, Joy; Piovia-Scott, Jonah; Pope, Karen; Lawler, Sharon. 2013. Bacterial flora on Cascades frogs in the Klamath Mountains of California. Comparative Immunology, Microbiology and Infectious Diseases 36(6): 591-598

 


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