期刊论文详细信息
Diseases of Aquatic Organisms | |
Microsporidiosis in the Caribbean spiny lobster Panulirus argus from southeast Florida, USA | |
Jan H. Landsberg1  Donald C. Behringer1  Yasunari Kiryu1  Barbara D. Petty1  | |
关键词: Microsporidia; Infection; Parasite; Spiny lobster; Panulirus argus; Skeletal muscle; Necrosis; Transmission electron microscopy; | |
DOI : 10.3354/dao02046 | |
学科分类:生物科学(综合) | |
来源: Inter-Research | |
【 摘 要 】
ABSTRACT: Two specimens of the Caribbean spiny lobster Panulirus argus captured by lobster fishers offshore of southeast Florida, USA, between late 2007 and early 2008 had completely white abdominal muscle tissue with a ‘cooked’ appearance. Wet-mount examination of the skeletal muscle tissue revealed masses of microsporidian spores. Histopathology of longitudinally sectioned skeletal muscle showed that the microsporidian spores displaced much of the muscle mass, but were interspersed with small empty vacuoles (approximately 5 µm in diameter) found adjacent to necrotic skeletal muscle. Skeletal muscle showed both liquefactive and coagulative necrosis. Transmission electron microscopy of the microsporidian spores revealed characteristics—including microvilli extending from the surface of the exospore, a unikaryotic spore (width 1.0 ± 0.13 µm, range 0.8 to 1.4 µm; length 1.4 ± 0.11 µm, range 1.2 to 1.6 µm; mean ± SD, N = 16), and an isofilar polar filament—consistent with the genus Ameson, which is known to infect other palinurid lobsters. Microsporidiosis in Caribbean spiny lobsters has rarely been reported within the lobster’s range, with only one brief report coming from the Florida Keys in 1976. Potential risks to the lobster fishery are unknown but warrant further study.【 授权许可】
Unknown
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