منابع مشابه
Effects of potassium and osmolality on spermatozoan motility of salmonid fishes.
In salmonid fishes, rainbow trout and masu salmon, and the plecoglossid fish, ayu, seminal plasma had an osmolality around 300 mosmol kg-1 isotonic to the blood plasma, and contained a higher concentration of potassium than the blood plasma. Spermatozoa of salmonid fishes were motile when semen was diluted 1:100 with solutions of sodium chloride or mannitol, over the osmotic range of 0-300 mosm...
متن کاملThe Fine Structure of Haematolœchus Spermatozoan Tail
For a n u m b e r of year~ investigators generally agreed that electron optical studies had established a basic pattern for the axial fiber bundle of sperm tails. This consisted essentially of two single ilia-ments centered within a ring made up of nine doublet filaments. It was further established that this structure possessed bilateral symmetry, All of the electron micrographs are from sperma...
متن کاملReceptor-mediated activation of spermatozoan guanylate cyclase.
The sea urchin egg peptides speract (Gly-Phe-Asp-Leu-Asn-Gly-Gly-Gly-Val-Gly) and resact (Cys-Val-Thr-Gly-Ala-Pro-Gly-Cys-Val-Gly-Gly-Arg-Leu-NH2) bind to spermatozoa of the homologous species (Lytechinus pictus or Arbacia punctulata, respectively) and cause transient elevations of cyclic GMP concentrations (Hansbrough, J. R., and Garbers, D. L. (1981) J. Biol. Chem. 256, 1447-1452). The additi...
متن کاملAxonemal tubulin polyglycylation probed with two monoclonal antibodies: widespread evolutionary distribution, appearance during spermatozoan maturation and possible function in motility.
Two monoclonal antibodies, AXO 49 and TAP 952, probed with carboxy-terminal peptides from Paramecium axonemal tubulin and with polyglycylated synthetic peptides, are found to recognize differently tubulin polyglycylation, the most recently identified posttranslational modification discovered in Paramecium axonemal tubulin. With these antibodies, we show that tubulin polyglycylation is widely di...
متن کاملApplicability of hydrodynamic analyses of spermatozoan motion.
This paper investigates the applicability of a simple hydrodynamics theory due to Gray & Hancock (1955), and extended by Brokaw (1970), to the analysis of the motions of sea urchin, rabbit, and bull spermatozoa. Experimental procedures for filming and analysing the swimming motions are presented. A detailed discussion of the agreement between the experimental and theoretical results is given, a...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1963
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(63)89027-x