Sperm morphology and biology in sturgeon

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F12%3A43883415" target="_blank" >RIV/60076658:12520/12:43883415 - 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
Sperm morphology and biology in sturgeon
Original language description
Sperm morphology, acrosome reaction and motility are reviewed in sturgeon (Chondrostei, Acipenseriformes). The elongated head of spermatozoon comprises an acrosome with 8-12 posterolateral projections. Three endonuclear canals are observed in the head. Proximal and distal centrioles and 3-6 mitochondria are located in the midpiece. The flagellum consists of an axoneme with "9+2" structure of microtubules and presents a ribon-like structure fins. Egg water, Ca2+ and Mg2+ can trigger acrosome reaction. Protease activity is reported in sturgeon sperm that were identified as serine activity with 33kDa molecular mass and can be inhibited by their respective inhibitors. The K+ prevents sperm activation in seminal plasma, thus hypo-osmolality or decrease of extracellular K+ triggers sperm activation. Extracellular Ca2+ is involved in flagellar beating pattern and sperm velocity. After activation, sperm motility, velocity, and flagellar beating frequency, wavelength and amplitude decrease, whi
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Book/collection name
Sperm Cell Research in the 21st Century: Historical Discoveries to New Horizons
ISBN
978-4-904419-37-3
Number of pages of the result
13
Pages from-to
100-112
Number of pages of the book
256
Publisher name
Adthree Publishing Co., Ltd.
Place of publication
Tokyo, Japan
UT code for WoS chapter
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