Search results: 6,035 results (approx.)

9. The medicinal leech.

Author(s) : Elliott, J. M.; Tullett, P. A.

Journal article : Biologist (London) 1992 Vol.39 No.4 pp.153-158 ref.20

18. Trends in parasitology. Living together.

Author(s) : Rennie, J.

Journal article : Scientific American 1992 Vol.266 No.1 pp.104-113 ref.5

21. Localization and distribution of catecholamines in the nervous system of Opisthioglyphe ranae (Frölich, 1791) cercaria (Digenea, Plagiorchiidae).

The presence of catecholamines in the nervous system of the cercaria of O. ranae was demonstrated using fluorescence methods. The distribution pattern of catecholamines and that of acetylcholinesterases, shown by a previous study, were found to be similar. However, some differences were apparent...

Author(s) : Czubaj, A.; Grabda-Kazubska, B.

Journal article : Acta Parasitologica 1994 Vol.38 No.4 pp.151-154 ref.22

22. Effect of an adult trematode, Proctoeces lintoni (Fellodistomidae), on the gonadosomatic index of Fissurella limbata (Archaeogastropoda).

Examination of a total of 554 specimens of F. limbata (keyhole limpets) collected at monthly intervals from the intertidal zone of rocky shores near Caleta Constitution, northern Chile from July 1986 to June 1987, showed that 507 were infected with P. lintoni and that on average, 34.9% of the...

Author(s) : Oliva, M. E.

Journal article : Acta Parasitologica 1994 Vol.38 No.4 pp.155-156 ref.10

23. Genetic variability in the M-line stock of Biomphalaria glabrata (Mollusca: Planorbidae).

Genetic variation among samples of the M-line stock of Biomphalaria glabrata is described. Snail samples from 5 separate research laboratory facilities display differences in allozyme frequencies among 9 of 24 enzymes examined. Genetic variability of M-line snails is discussed relative to the...

Author(s) : Mulvey, M.; Bandoni, S. M.

Journal article : Journal of the Helminthological Society of Washington 1994 Vol.61 No.1 pp.103-108 ref.24

24. Purification and properties of phosphoenolpyruvate carboxylase from Molinema dessetae (Nematoda: Filarioidea).

The presence of phosphoenolpyruvate (PEP) carboxylase, an enzyme at the branchpoint of glycolysis and the Krebs cycle, was detected in M. dessetae. This enzyme has not previously been identified in helminths, which have so far been found to only possess a phosphoenolpyruvate carboxykinase. This...

Author(s) : Loiseau, P. M.; Gayral, P.; Petek, F.

Journal article : Parasitology 1993 Vol.106 No.1 pp.55-61 ref.28

25. Characterization of proteinases in extracts of adult Haemonchus contortus, the ovine abomasal nematode.

The degradation of several protein substrates, including the blood proteins haemoglobin, albumin and fibrinogen, by proteinases present in extracts of adult Haemonchus contortus was examined over a broad pH range. These proteinases were further characterized on the basis of substrate specificity,...

Author(s) : Knox, D. P.; Redmond, D. L.; Jones, D. G.

Journal article : Parasitology 1993 Vol.106 No.4 pp.395-404 ref.24