Observation on development of Schistosoma japonicum in Oncomelania hupensis
- VernacularTitle:日本血吸虫幼虫在钉螺体内发育观察
- Author:
Guoyu XU
;
Jiequan LI
;
Peicai YANG
- Publication Type:Journal Article
- Keywords:
Schistosoma japonicum;
Mothersporocyst;
Daughtersporocyst;
Cercaria
- From:
Chinese Journal of Schistosomiasis Control
1989;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the development of Schistosoma japonicum in Oncomelania hupensis. MethodsOncomelania snails were infected heavily with miracidia of S.japonicum and the snails were dissected in different time. The mothersporocysts, daughtersporocysts and cercariae were collected, fixed with Bouin's fluid, dyed with carminic stain, enveloped with neutral gum and examined. ResultsThe neural rings were found in 1-24 hours old mothersporocysts and disappeared in 2 days. In the mothersporocysts, germinal cells increased and developed to germ balls. One germ ball developed to one daughtersporocyst. In daughtersporocysts, there were germ balls of different development stages and at last they developed into cercariae. ConclusionThe development process from the miracidium to mothersporocyst, to daughtersporocyst, to cercaria is observed.
