Neurotropic mesomycetozoean-like infection in larvae of the southern toad Anaxyrus terrestris in Florida, USA

Diseases of Aquatic Organisms
Yasunari Kiryu, Jan H Landsberg

Abstract

As part of a state-wide multispecies survey of amphibian diseases, sampling was conducted at Archbold Biological Station, Venus, Florida, USA, on 15 April 2011. Gross examination of southern toad (Anaxyrus terrestris) larvae was unremarkable, but infections by a mesomycetozoean-like organism were observed in longitudinally sectioned routine haematoxylin and eosin-stained histologic slides. In 100% of the sectioned specimens examined (n = 5), a high density of the organism, representing several developmental stages, was found in the central nervous system, mainly in the spinal cord, brain, retina and optic nerve. No host inflammatory responses were found to be associated with the parasitic infection. Free, mature schizonts were occasionally found in the gill chamber and, more commonly, in the dorsal roof area. No organisms were found in other organs examined histologically, i.e. liver, kidney, heart, alimentary tract, exocrine pancreas and skeletal muscles. Presumptive mesomycetozoean ichthyophonids in anurans are usually reported to be pathogenic, especially affecting skeletal muscle tissue and causing death. To our knowledge, this is the first report of a similar organism infecting primarily the central nervous system in an am...Continue Reading

References

Jan 1, 1984·Journal of Wildlife Diseases·R L Herman
Jun 8, 2000·Diseases of Aquatic Organisms·I MikaelianD M Green
Jul 27, 2002·Annual Review of Microbiology·Leonel MendozaLibero Ajello
Oct 17, 2002·Annals of the New York Academy of Sciences·D Earl GreenAudra K Schrader
Feb 20, 2007·The Journal of Parasitology·Thomas R RaffelPeter J Hudson
Jun 27, 2007·ILAR Journal·Christine L Densmore, David Earl Green
Dec 10, 2008·Diseases of Aquatic Organisms·Betsie B RothermelDirk J Stevenson
Jan 27, 2010·Diseases of Aquatic Organisms·Matthew J GrayJason T Hoverman
Sep 21, 2010·Journal of Aquatic Animal Health·Gavin W GlenneyWilliam M Quartz
Jan 29, 2011·Diseases of Aquatic Organisms·A D PhillottL Berger
Nov 4, 2011·Biology Letters·D LesbarrèresM J Gray
Oct 2, 2012·The Journal of Eukaryotic Microbiology·Sina M AdlFrederick W Spiegel
May 15, 2013·Diseases of Aquatic Organisms·Vanessa C WhiteCarolyn S Friedman

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