The Mechanism of the Metacercarial Excystment of Clinostomum complanatum (Rud. 1814)

Chu Fang Lo, Chung Hsiung Wang, Kazuo Ogawa, Hisatsugu Wakabayashi

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

The metacercaria of Clinostomum complanatum excysts from fish only after activation. The present study was conducted to determine whether activation was dependent on temperature, hydrogen ion concentration or on the stomach enzyme, pepsin. The data indicate that the metacercaria is very sensitive to a high temperature such as 39°C and 42°C. Warm water at 33°C and 36°C can also induce excystment of the metacercaria but not so powerful. Following the pretreatment of a low temperature, the metacercarial excystment can occur at a room temperature. Therefore, the excystment does not necessarily occur only at the temperature above 33°C but an increase in varying temperatures may be enough to trigger excystment. Histological observations suggest that the parasite-origin proteolytic enzyme(s) play a major role in the excystment.

原文English
頁(從 - 到)227-235
頁數9
期刊Fish Pathology
22
發行號4
DOIs
出版狀態Published - 1987

All Science Journal Classification (ASJC) codes

  • 海洋科學
  • 動物科學與動物學

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