Chytridiomycosis in native Arizona frogs

Gregory A Bradley, Philip C Rosen, Michael J. Sredl, Thomas R. Jones, Joyce E. Longcore

Research output: Contribution to journalArticle

141 Citations (Scopus)

Abstract

Twenty seven adult/sub-adult lowland leopard frogs (Rana yavapaiensis), two larval lowland leopard frogs, two adult Chirichahua leopard frogs (Rana chiricahuensis), and two adult canyon tree frogs (Hyla arenicolor) collected from populations experiencing mortality events at eight sites were found to have characteristic lesions of chytrid fungus infection (Batrachochytrium dendrobatidis). The mortalities occurred during December 1992 and between October and February in 1997-98 and December and February in 1998-99. Gross lesions varied from none to diffuse reddening of the skin of the abdomen, pelvic area, and legs. Microscopic lesions were characteristic of those previously reported for the disease and included diffuse epidermal hyperplasia, hyperkeratosis, and colonization of the keratinized layers of the epidermis by sporangia of the chytrid. Bacterial cultures did not yield a primary pathogenic agent. Virus isolation from frog tissues was negative. Batrachochytrium dendrobatidis was isolated from the skin of two of 10 R. yavapaiensis and one of two H. arenicolor cultured following necropsy. An additional nine of 11 clinically affected or dead R. yavapaiensis from the same locations, but not necropsied, were culture positive for B. dendrobatidis.

Original languageEnglish (US)
Pages (from-to)206-212
Number of pages7
JournalJournal of Wildlife Diseases
Volume38
Issue number1
StatePublished - Jan 2002

Fingerprint

Chytridiomycota
Rana pipiens
frog
Anura
Ranidae
frogs
lesions (animal)
lesion
Ranavirus
Rana
Sporangia
skin (animal)
lowlands
Skin
Mortality
Mycoses
skin
Epidermis
hyperkeratosis
Abdomen

Keywords

  • Batrachochytrium dendrobatidis
  • Canyon tree frog
  • Chytridiomycosis
  • Dermatitis
  • Hyla arenicolor
  • Lowland leopard frog
  • Rana chiricahuensis
  • Rana yavapaiensis

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Bradley, G. A., Rosen, P. C., Sredl, M. J., Jones, T. R., & Longcore, J. E. (2002). Chytridiomycosis in native Arizona frogs. Journal of Wildlife Diseases, 38(1), 206-212.

Chytridiomycosis in native Arizona frogs. / Bradley, Gregory A; Rosen, Philip C; Sredl, Michael J.; Jones, Thomas R.; Longcore, Joyce E.

In: Journal of Wildlife Diseases, Vol. 38, No. 1, 01.2002, p. 206-212.

Research output: Contribution to journalArticle

Bradley, GA, Rosen, PC, Sredl, MJ, Jones, TR & Longcore, JE 2002, 'Chytridiomycosis in native Arizona frogs', Journal of Wildlife Diseases, vol. 38, no. 1, pp. 206-212.
Bradley GA, Rosen PC, Sredl MJ, Jones TR, Longcore JE. Chytridiomycosis in native Arizona frogs. Journal of Wildlife Diseases. 2002 Jan;38(1):206-212.
Bradley, Gregory A ; Rosen, Philip C ; Sredl, Michael J. ; Jones, Thomas R. ; Longcore, Joyce E. / Chytridiomycosis in native Arizona frogs. In: Journal of Wildlife Diseases. 2002 ; Vol. 38, No. 1. pp. 206-212.
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