REDESCRIPTION ON MONEIZIA DEVRAOI (HUMBE, ET AL, 2013) (CESTODA: ANAPLOCEPHALIDEA) IN THE INTESTINE OF GOAT FROM AURANGABAD (M.S.), INDIA

Moniezia (B) devraoi (Humbe, et al, 2013) cestode parasite of Capra hircus, Linnaeus, 1758 (Family: Bovidae) is rediscribed from Aurangabad district (M.S.), India. The Present worm resemble with Moniezia (B) devraoi (Humbe, et al, 2013) in having in having morphological characters Scolex large, globular, mature segment broader than long, terstes small oval to round, 180-200 in number, cirruch pouch oval, ovary large, oval shaped, vitelline gland post ovarian

Retinometra albeolae n.sp. (Cestoda: Hymenolepididae) from the bufflehead duck, Bucephala albeola L.

Retinometra albeolae n.sp. is described from bufflehead ducks (Bucephala albeola L.) from Manitoba, Canada. It is armed with eight skrjabinoid rostellar hooks 69–75 μm long, and has a cirrus sac 240–480 μm long that extends to approximately the midline of mature proglottids, a trilobed ovary, and a lobed vitelline gland. Staphylepis indica and Staphylepis meggitti, currently included in the genus Retinometra, are returned to Staphylepis on the basis of proglottid morphology and the apparent lack of a cirrus stylet in both species.

Integration and expression of murine retrovirus-related sequences in schistosomes

SUMMARYAntibodies against the retrovirus envelope glycoprotien (gp70) of mouse xenotropic retrovirus, BALB virus 2 (Bv2) reacted with the adult worms ofSchistosoma japonicumandS. mansoni. This reaction was completely inhibited after adsorption of the antibodies with virions of retrovirus. The reactive schistosome antigen was located in the subtegumental layer of the adult male fluke and in the vitelline gland of the adult female ofS. japonicumandS. mansoni. Proteins extracted from both parasites were examined by immunoblot analysis. Anti-Bv2 gp70 antiserum reacted with those proteins from both schistosomes and the band patterns were different among sexes and species. Southern hybridization of the DNA extracted from adults ofS. japonicumandS. mansonidemonstrated the presence of sequences homologous to theenvgene of mouse ecotropic and xenotropic retroviruses. DNA sequences homologous to thegagandpolregions of the ecotropic murine leukaemia virus were also detected in the DNAs of schistosomes

Vitelline gland histochemistry in the commensal temnocephalidParacaridinicola platei(Fernando, 1952) Baer, 1953, together with some notes on the egg

ABSTRACTHistochemical tests indicate the presence of tanning precursors namely protein, phenols and phenolase in the vitelline glands of the temnocephalidParacaridinicola platei. This suggests the occurrence of a tanned egg shell in this organism, a feature it shares with many other parasitic and free living platyhelminths. The large eggs are laid singly and are attached to the gill lamellae of the host.

Schistosoma mansoni: vitelline gland development in females from single sex infections

ABSTRACTVitelline gland development and incomplete parthenogenesis in 65-week-old female Schistosoma mansoni from single sex infections is described. Vitelline gland development was restricted to the extreme posterior end of each worm and the developed vitelline lobules showed the normal sequence of development and maturation. The ovary, however, was always in an immature state. Egg production occurred although the eggs were non-viable.The results suggest that, whilst male stimulation is not necessary to initiate vitelline gland development and egg production, it appears to be essential for the complete maturation of the ovary. The possible importance of ovarian maturation to the production of viable eggs is discussed.

Schistosoma mansoni: changes in the rate of tyrosine uptake by unisexual females after stimulation by males and male extracts

The rate of uptake of H3 tyrosine by unisexual females in vitro was accelerated by 22% when male worm extract was added to the culture medium. Pairing of unisexual females with mature male worms in vitro resulted in a similar acceleration of H3 tyrosine uptake. As tyrosine is avidly taken up by the vitelline gland for the formation of egg shell protein the change in the rate of H3 tyrosine uptake can be employed as a sensitive quantitative criterion for assessing its development following stimulation.