Results 81 to 90 of about 973 (104)

Urinal Sperm Motility and Parasite Load in Anuran Amphibians (Anura)

Russian Journal of Herpetology, 2019
Parasite load effect on the spermatozoa motility of the moor frog ( Rana arvalis Nilsson, 1842) native urinal sperm has been evaluated for the first time.
А. V. Burakova, E. A. Baitimirova, I. Kshnyasev, I. V. Zubarev   +3 more
semanticscholar   +1 more source

Mitosis and polyploidy in nuclei ofOpalina ranarum

Experientia, 1968
Dans certaines populations deOpalina ranarum nous avons trouve d'importantes differences dans la grandeur des noyaux. Ces differences tiennent au degre de polyploidisation. Les grands polyploides conservent la faculte de se diviser par mitose.
openaire   +2 more sources

Patterning in Opalinids.III.The Cytoskeleton of Cepedea sudafricana (FANTHAM, 1923) AFFA'A & LYNN 1994, an Intermediate Type between Opalina ranarum and Protoopalina pseudonutti

Archiv für Protistenkunde, 1995
Summary The cytoskeleton of Cepedea sudafricana was studied by silver staining according to the method of FERNANDEZ-GALIANO 1976) and by electron microscopy after fixation, which preserves the microfibrils better.The fibrillar cytoskeleton of this species, which has many nuclei, seems to be an intermediate model between the microfibrillar skeleton of
Jean-Pierre Mignot, Felix-Marie Affa'a
openaire   +1 more source

Parasite diversity in painted frogs inhabiting desert oases in southern Tunisia.

Parasitology international
Data on parasites infecting amphibians in arid North-African areas are still scarce. In this study, we investigate the diversity and prevalence of parasites in a painted frog (Discoglossus pictus) population inhabiting desert oases in south-eastern ...
J. Dhib, M. Comas, H. Kacem, A. Hammouda, J. Harl, H. Fuehrer, J. Garrido-Bautista, G. Moreno-Rueda, S. Selmi   +8 more
semanticscholar   +1 more source

Action of sodium pyruvate upon nucleated and enucleated fragments of the parasitic ciliateOpalina ranarum

Experientia, 1962
Natrium-Pyruvat zeigt eine cytolisierende Wirkung auf enukleierte Fragmente der schmarotzenden CiliateOpalina ranarum.
openaire   +2 more sources

Hydrodynamic calculations on the movements of cilia and flagella. II. Opalina.

Journal of Theoretical Biology, 1975
J. Blake
semanticscholar   +1 more source

Newly discovered linkages between the cortical (pellicular) ridges of Opalina.

European Journal of Protistology, 2006
D. Woolley
semanticscholar   +1 more source

Fibrillar structures in Opalina obtrigonoidea Metcalf.

Journal of Parasitology, 1947
W. B. Cosgrove
semanticscholar   +1 more source

Neue Experimentelle Studien zur Frage der Entstehung des Anaphylaktischen Schockes beim Meerschweinchen

Klinische Wochenschrift, 1923
P. Schmidt, E. Barth
semanticscholar   +1 more source

Note on certain New Bodies in Opalina ranarum, presumed to represent the Golgi Elements

Journal of Cell Science, 1926
Seana D. King, J. Brontë Gatenby
openaire   +1 more source