The larval development of Habronema muscae (Nematoda: Habronematidae) affects its intermediate host, Musca domestica (Diptera: Muscidae)

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• 作者：Rolf Karl Schuster ; Saritha Sivakumar
• 关键词：Habronema muscae ; Larval development ; Musca domestica ; Parasite host interaction
• 刊名：Parasitology Research
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：116
• 期：2
• 页码：503-509
• 全文大小：
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Medical Microbiology; Microbiology; Immunology;
• 出版者：Springer Berlin Heidelberg
• ISSN：1432-1955
• 卷排序：116

文摘

Although the life cycle of the equid stomach parasite Habronema muscae was disclosed more than 100 years ago, little is known about the effect of the developing nematode larvae in its intermediate host, Musca domestica. In a series of experiments, freshly hatched M. domestica larvae were exposed to H. muscae eggs contained in a faecal sample of a naturally infected horse. In daily intervals, 50 fly larvae were removed and transferred on a parasite-free larval rearing medium where they completed their development. Hatched flies were examined for the presence of Habronema third-stage larvae. In two subsequent control groups, flies spend their entire larval life in contaminated horse faeces and in a parasite-free larval rearing medium, respectively. Out of the 700 fly larvae used in the infection experiments, 304 developed into adult flies of which 281 were infected. The average nematode larval burden rose from 3.6 in the group with the shortest exposure to more than 25 in the groups with the longest exposure. The proportion of larvae that developed into the adult insect fell from 82 % in the uninfected control group to 27 % in the positive control group. The pupae of the positive control group were smaller and lighter than those of the uninfected control group. Lower pupal size and weight in the positive control group as well as a lower insect developing rate might be attributed to the destruction of adipose cells in the maggots by Habronema larvae.