Roles of osmolality, calcium - Potassium antagonist and calcium in activation and flagellar beating pattern of sturgeon sperm
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F11%3A43876864" target="_blank" >RIV/60076658:12520/11:43876864 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.cbpa.2011.05.026" target="_blank" >http://dx.doi.org/10.1016/j.cbpa.2011.05.026</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cbpa.2011.05.026" target="_blank" >10.1016/j.cbpa.2011.05.026</a>
Alternative languages
Result language
angličtina
Original language name
Roles of osmolality, calcium - Potassium antagonist and calcium in activation and flagellar beating pattern of sturgeon sperm
Original language description
The present study shows the roles of osmolality, Ca2+- K+ antagonist and Ca2+ in sperm activation and flagellar beating of sturgeon. Sperm motility was activated at hypoosmolality and suppressed at 175 mOsmol kg?1. Sperm activation was suppressed by 0.35mM K+, but Ca2+ could reverse K+ inhibitory effect at Ca2+: K+ ratio of 0.25. Neither EGTA (a chelator of Ca2+) nor nifedipine (a Ca2+ channel blocker) prevented sperm activation. But, sperm motility and velocity were decreased by EGTA, nifedipine and aninhibitor for Ca2+/calmodulin protein (w-7); suggesting role of Ca2+ signaling after triggering sperm activation through hypoosmolality. Symmetric flagellar beating was turned to asymmetric after activation in w-7; evidence for modulation of Ca2+-binding proteins activity. Sturgeon sperm, similar to salmonids, is immotile in seminal plasma due to high K+ , but the mechanism of sperm activation seems to be closer to freshwater teleosts, where osmolality prohibits sperm activation in semi
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
GL - Fishery
OECD FORD branch
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Result continuities
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)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Comparative Biochemistry and Physiology A-Molecular & Integrative Physiology
ISSN
1095-6433
e-ISSN
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Volume of the periodical
160
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
166-174
UT code for WoS article
000293936800009
EID of the result in the Scopus database
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