Sperm morphology and biology in sturgeon

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Sperm morphology and biology in sturgeon

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Sperm morphology and biology in sturgeon

Popis výsledku anglicky

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

Druh

C - Kapitola v odborné knize

CEP obor

GL - Rybářství

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

Sperm Cell Research in the 21st Century: Historical Discoveries to New Horizons

ISBN

978-4-904419-37-3

Počet stran výsledku

13

Strana od-do

100-112

Počet stran knihy

256

Název nakladatele

Adthree Publishing Co., Ltd.

Místo vydání

Tokyo, Japan

Kód UT WoS kapitoly

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