Literaturdatenbank
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Herbst, L. H., Greiner, E. C., Ehrhart, L. M., Bagley, D. A., & Klein, P. A. (1998). Serological association between spirorchidiasis, herpesvirus infection, and fibropapillomatosis in green turtles from florida. Journal of Wildlife Diseases, 34(3), 496–507.
Added by: Admin (14 Aug 2008 22:46:45 UTC) |
| Resource type: Journal Article BibTeX citation key: Herbst1998 View all bibliographic details  |
Categories: General Keywords: Chelonia, Chelonia mydas, Cheloniidae, Parasiten = parasites, Schildkröten = turtles + tortoises, Veterinärmedizin = veterinary medicine, Viren = viruses Creators: Bagley, Ehrhart, Greiner, Herbst, Klein Collection: Journal of Wildlife Diseases |
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Plasma samples from 46 captive-reared green turtles (Chelonia mydas), including paired pre- and 1-year post-inoculation samples from 12 turtles with experimentally induced green turtle fibropapillomatosis (GTFP), were found by ELISA to be negative for antibodies to adult spirorchid (Learedius learedi) antigens. All 12 turtles that developed experimentally induced GTFP converted within 1 year from having negative to positive antibody reactivity to GTFP-associated herpesvirus antigens, whereas the 3 controls and 4 turtles that failed to develop tumours remained negative. Plasma samples obtained between 1992 and 1994 from 104 free-ranging green turtles from 2 Florida (USA) coastal feeding grounds with different GTFP prevalences were tested by ELISA for antibodies to L. learedi adult antigens; there was no statistically significant association between antibody prevalence and sampling site. When a low optical density cutoff value (0.15) was used to interpret ELISA results, 98% of the turtles from each site were spirorchid antibody-positive and there was no association between antibody reactivity to spirorchids and GTFP status. When a higher negative cutoff value was used, however, a statistically significant association between antibody reactivity to spirorchids and GTFP-free status was found. It is suggested that spirorchids do not have a role in GTFP pathogenesis. All 20 of the tumour-bearing lagoon turtles had antibodies to herpesvirus antigens whereas only 2 (10%) of the tumour-free reef turtles had detectable anti-herpesvirus reactivity. The strong association between antibody reactivity to herpesvirus antigens and GTFP status in both captive-reared and free- ranging turtles is consistent with the hypothesis that the transmissible agent that causes GTFP is a herpesvirus.
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