Factors regulating the motility of fish sperm

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12610%2F04%3A00005781" target="_blank" >RIV/60076658:12610/04:00005781 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Factors regulating the motility of fish sperm
Original language description
Spermatozoa are unique among cells generated by the metazoans: they are unicells which, in species with external fertilization (oviparous fishes), are released usually in a hostile external medium where they have to cope with extremely harmful conditionsas frash water or sea water although they appear poorly protected when compared with eggs. This study summarizes how the environmental factors and eventually factors derived from eggs regulate the movement of spermatozoa of oviparous chondrostean and teleostean fresh water fish species. The oviparous fish sperm have to abide by a reproduction strategy in which a very brief period of reaction is needed to achieve their task. They exhibit a hyper motile behavior remarkably similar to the so-called hypermotility of mammalian sperm in the vicinity of eggs before fertilization. The hyper moti of fish sperm is fully triggered a t release in the new ionic/osmotic environment and is expressed by an initial high beat frequency, a high velocity
Czech name
Faktory regulující motilitu rybích spermií
Czech description
Práce popisuje faktory regulující motilitu spermií ryb. Porovnány jsou rozdíly mezi rybami chrupavčitými a teleostými.

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EC - Immunology
OECD FORD branch
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Project
<a href="/en/project/GA524%2F03%2F0178" target="_blank" >GA524/03/0178: A detailed study of spermatozoa in model species of chondrostean and teleostean fish</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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