1. Resistance to Chytridiomycosis in European plethodontid salamanders of the genus Speleomantes
- Author
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Jacobsen, Ilse D., Frank, Pasmans, Pascale Van Rooij, Mark, Blooi, Giulia, Tessa, Sergé, Bogaerts, Giuseppe, Sotgiu, Garner, Trenton W. J., Fisher, Matthew C., Schmidt, Benedikt R., Tonnie, Woeltjes, Wouter, Beukema, Stefano, Bovero, Connie, Adriaensen, Fabrizio, Oneto, Ottonello, Dario, Martel, An, Sebastiano, Salvidio, University of Zurich, and Van Rooij, Pascale
- Subjects
Male ,Veterinary Microbiology ,Alytes muletensis ,Speleomantes ,PEPTIDE DEFENSES ,Genus ,Speleomantes strinatii ,Batrachochytrium dendrobatidis ,FROG ,Conservation Science ,Disease Resistance ,Skin ,Multidisciplinary ,Ecology ,biology ,LOW-PREVALENCE ,Spores, Fungal ,Host-Pathogen Interaction ,Europe ,Chytridiomycota ,AMBYSTOMA-TIGRINUM ,Veterinary Diseases ,Veterinary Mycology ,AMPHIBIAN DECLINES ,590 Animals (Zoology) ,Medicine ,Female ,Disease Susceptibility ,Research Article ,Amphibian ,ETHIDIUM MONOAZIDE ,Science ,skin secrection ,plethodontid salamander ,Urodela ,Zoology ,1100 General Agricultural and Biological Sciences ,Mycology ,Microbial Sensitivity Tests ,Microbiology ,Amphibian Proteins ,10127 Institute of Evolutionary Biology and Environmental Studies ,1300 General Biochemistry, Genetics and Molecular Biology ,biology.animal ,Animals ,Chytridiomycosis ,Biology ,Microbial Pathogens ,IMMUNE DEFENSES ,1000 Multidisciplinary ,PATHOGEN BATRACHOCHYTRIUM-DENDROBATIDIS ,Herpetology ,Biology and Life Sciences ,CHYTRID FUNGUS ,biology.organism_classification ,salamander ,chytridiomycosis ,Emerging Infectious Diseases ,Mycoses ,570 Life sciences ,Salamander ,amphibian ,Veterinary Science ,SKIN ,Antimicrobial Cationic Peptides - Abstract
North America and the neotropics harbor nearly all species of plethodontid salamanders. In contrast, this family of caudate amphibians is represented in Europe and Asia by two genera, Speleomantes and Karsenia, which are confined to small geographic ranges. Compared to neotropical and North American plethodontids, mortality attributed to chytridiomycosis caused by Batrachochytrium dendrobatidis (Bd) has not been reported for European plethodontids, despite the established presence of Bd in their geographic distribution. We determined the extent to which Bd is present in populations of all eight species of European Speleomantes and show that Bd was undetectable in 921 skin swabs. We then compared the susceptibility of one of these species, Speleomantes strinatii, to experimental infection with a highly virulent isolate of Bd (BdGPL), and compared this to the susceptible species Alytes muletensis. Whereas the inoculated A. muletensis developed increasing Bd-loads over a 4-week period, none of five exposed S. strinatii were colonized by Bd beyond 2 weeks post inoculation. Finally, we determined the extent to which skin secretions of Speleomantes species are capable of killing Bd. Skin secretions of seven Speleomantes species showed pronounced killing activity against Bd over 24 hours. In conclusion, the absence of Bd in Speleomantes combined with resistance to experimental chytridiomycosis and highly efficient skin defenses indicate that the genus Speleomantes is a taxon unlikely to decline due to Bd.
- Published
- 2013