The tapeworm Ligula intestinalis (Cestoda: Pseudophyllidea) inhibits LH expression and puberty in its teleost host, Rutilus rutilus
نویسندگان
چکیده
منابع مشابه
Ligula intestinalis (Cestoda: Pseudophyllidea): an ideal fish-metazoan parasite model?
Since its use as a model to study metazoan parasite culture and in vitro development, the plerocercoid of the tapeworm, Ligula intestinalis, has served as a useful scientific tool to study a range of biological factors, particularly within its fish intermediate host. From the extensive long-term ecological studies on the interactions between the parasite and cyprinid hosts, to the recent advanc...
متن کاملExperimental demonstration of a behavioural modification in a cyprinid fish, Rutilus rutilus (L.), induced by a parasite, Ligula intestinalis (L.)
Behavioural changes in parasitized hosts have been experimentally investigated by comparing the swimming behaviour of roach, Rutilus rutilus, infected by the tapeworm Ligula intestinalis with that of uninfected roach when they were exposed to the same overhead heron stimulus. Before the stimulus was presented, infected fish swam close to the surface and uninfected fish were preferentially found...
متن کاملSexual ornamentation, androgens and papillomatosis in male roach (Rutilus rutilus)
According to the immunocompetence handicap hypothesis, males with attractive sexual ornamentation are more handicapped than their less ornamented rivals because of the immunosuppressive androgens required for the production of secondary sexual characters. Here we studied the predictions of the hypothesis in a wild cyprinid fish, the roach (Rutilus rutilus). We assayed (1) sexual ornamentation (...
متن کاملLaboratory and field studies with 32P labeled Toxorhynchites rutilus rutilus.
Females and eggs of Toxorhynchites r. rutilus were labeled with 32P by feeding fourth-stage larvae 32P labeled Aedes aegypti larvae. Eggs from females up to 3 weeks in age had detectable levels of radioactivity and individual eggs contained ca. 0.3% of the mother's total radioactivity. Comparisons of labeled and unlabeled females in indoor and outdoor cage tests indicated that survival and fecu...
متن کاملگزارش چند مورد آلودگی ماهی سفید رودخانه ای (Rutilus rutilus) به انگل Ligula intestinalis در سد ارس
سابقه و هدف: ارگانیسم های فراوانی باعث ایجاد خسارت به ماهی ها می شوند که از آن جمله می توان به انگل ها اشاره داشت. بیماری لیگولوز از جمله شایعترین عفونت های انگلی و از نظر اقتصادی از مهمترین بیماری های ماهیان آب شیرین محسوب می گردد. در این مطالعه چند مورد آلودگی ماهی سفید رودخانه ای به انگل Ligula intestinalis معرفی می شوند. گزارش مورد: تعداد 50 عدد ماهی سفید رودخانه ای (Rutilus rutilus) که از ...
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ژورنال
عنوان ژورنال: Reproduction
سال: 2005
ISSN: 1470-1626,1741-7899
DOI: 10.1530/rep.1.00742