EcoHealth

, 3:53

Amphibian Pathogen Batrachochytrium dendrobatidis Is Inhibited by the Cutaneous Bacteria of Amphibian Species

  • Reid N. Harris
  • Timothy Y. James
  • Antje Lauer
  • Mary Alice Simon
  • Amit Patel
Short Communication

Abstract

Population declines of amphibian species in many parts of the world are associated with a lethal fungal pathogen, Batrachochytrium dendrobatidis. Using laboratory challenge assays, we describe the inhibition of B. dendrobatidis by members of eight genera of bacteria isolated from the skin of two amphibian species that exhibit parental care behavior (Plethodon cinereus and Hemidactylium scutatum). We found that members of three genera of bacteria isolated from the skins of the salamander P. cinereus and members of seven genera isolated from the salamander H. scutatum inhibited the growth of B. dendrobatidis. Understanding how B. dendrobatidis interacts with an ecological community of cutaneous flora may be important in explaining and preventing amphibian population declines.

Keywords

Amphibia bacteria Batrachochytrium Chytridiomycota fungi pathogen 

References

  1. Austin RM (2000) Cutaneous microbial flora and antibiosis in Plethodon ventralis. In: Bruce RC, Jaeger RG, Houck LD (eds), The Biology of Plethodontid Salamanders. New York: Kluwer Academic/Plenum, pp 127–136Google Scholar
  2. Australian Government, Department of Environment and Heritage (2004) Draft threat abatement plan for infection of amphibians with chytrid fungus resulting in chytridiomycosis. Available: http://www.jcu.edu.au/school/phtm/PHTM/frogs/TAP/amphibians.pdf. [accessed September 22, 2005]
  3. Berger L, Speare R, Daszak P, Green DE, Cunningham AA, Goggin CL, et al. (1998) Chytridiomycosis causes amphibian mortality associated with population declines in the rain forests of Australia and Central America. Proceedings of the National Academy of Sciences USA 95:9031–9036CrossRefGoogle Scholar
  4. Bosch J, Martínez-Solano I, García-París M (2001) Evidence of a chytrid fungus infection involved in the decline of the common midwife toad (Alytes obstetricans) in protected areas of central Spain. Biological Conservation 97:331–337CrossRefGoogle Scholar
  5. Carey C, Pessier AP, Peace AD (2003) Pathogens, infectious disease, and immune defenses. In: Semlitsch R (eds), Amphibian Conservation. Washington DC: Smithsonian Institution Press, pp 127–136Google Scholar
  6. Daszak P, Berger L, Cunningham AA, Hyatt AD, Green DE, Speare R (1999) Emerging infectious diseases and amphibian population declines. Emerging Infectious Diseases 5:735–748 PubMedCrossRefGoogle Scholar
  7. Hanselmann R, Rodriguez A, Lampo M, Fajardo-Ramos L, Aguirre AA, Kilpatrick AM, et al. (2004) Presence of an emerging pathogen of amphibians in introduced bullfrogs (Rana catesbeiana) in Venezuela. Biological Conservation 120:115–119CrossRefGoogle Scholar
  8. Lips KR, Burrowes PA, Mendelson JR, Parra-Olea G (2005) Amphibian declines in Latin America: widespread population declines, extinctions, and impacts. Biotropica 37:163–165CrossRefGoogle Scholar
  9. Lips KR, Reeve JD, Witters LR (2003) Ecological traits predicting amphibian population declines in Central America. Conservation Biology 17:1078–1088CrossRefGoogle Scholar
  10. Matos A, Kerkhof L, Garland JL (2005) Effects of microbial community diversity on the survival of Pseudomonas aeruginosa in the wheat rhizosphere. Microbial Ecology 49:257–264CrossRefPubMedGoogle Scholar
  11. McDonald KR, Alford RA (1999) A review of declining frogs in northern Queensland. In: Campbell A (eds), Declines and Disappearances of Australian Frogs. Canberra: Environment Australia, pp 14–22Google Scholar
  12. Retallick RW, McCallum RH, Speare R (2004) Endemic infection of the amphibian chytrid fungus in a frog community post-decline. PLoS Biology 2:e351CrossRefPubMedGoogle Scholar
  13. Rollins-Smith LA, Reinert LK, O’Leary CJ, Houston LE, Woodhams DC (2005) Antimicrobial peptide defenses in amphibian skin. Integrative and Comparative Biology 45:137–142CrossRefGoogle Scholar
  14. Ron SR, Merino A (2000) Amphibian declines in Ecuador: overview and first report of chytridiomycosis from South America. FrogLog 42:2–3Google Scholar
  15. Speare R, Berger L (2000) Global distribution of chytridiomycosis in amphibians. Available: http://www.jcu.edu.au/school/phtm/PHTM/frogs/chyglob.htm [accessed September 22, 2005]

Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • Reid N. Harris
    • 1
  • Timothy Y. James
    • 2
  • Antje Lauer
    • 1
  • Mary Alice Simon
    • 1
  • Amit Patel
    • 2
  1. 1.Department of Biology, MSC 7801James Madison UniversityHarrisonburgUSA
  2. 2.Department of BiologyDuke UniversityDurhamUSA

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