Spermatozoa motility in the Persian sturgeon, Acipenser persicus: effects of pH, dilution rate, ions and osmolality.
Identifieur interne : 001001 ( Main/Exploration ); précédent : 001000; suivant : 001002Spermatozoa motility in the Persian sturgeon, Acipenser persicus: effects of pH, dilution rate, ions and osmolality.
Auteurs : Sayyed Mohammad Hadi Alavi [Iran] ; Jacky Cosson ; Mahmoud Karami ; Bagher Mojazi Amiri ; Mohammd Ali AkhoundzadehSource :
- Reproduction (Cambridge, England) [ 1470-1626 ] ; 2004.
English descriptors
- KwdEn :
- MESH :
- chemical , pharmacology : Potassium.
- chemical : Cations.
- physiology : Fishes, Sperm Motility.
- Animals, Environment, Hydrogen-Ion Concentration, Male, Osmolar Concentration.
Abstract
Sperm motility is a prerequisite factor determining semen quality and fertilizing capacity. The effects of environmental factors including pH, cations and osmolality as well as the role of dilution rate on sperm motility parameters in Acipenser persicus were studied. The best pH and dilution rate for activation of spermatozoa were pH 8.0 and dilution ratio 1:50. Ionic factors can stimulate the initiation of sperm activation. The maximum percentage of motile sperm and total duration of sperm motility were observed in solutions containing 25 mM NaCl, 0.2 mM KCl, 3 mM CaSO4, 10 mM MgSO4 and sucrose with an osmolality of 50 mosmol kg(-1). The present study provides us with some basic knowledge about sturgeon spermatozoa biosensitivity to ionic and osmolality effects. A sensitivity of A. persicus sperm was observed after induction of activation of sperm motility in solution containing cations or sucrose with high osmolality. Concentrations more than 50 mM Na+, more than 1 mM K+, more than 3 mM Ca2+ and more than 10 mM Mg2+ had negative effects on sperm motility. Also, osmolality more than 100 mosmol kg(-1) had an inhibitory effect. It is clear that ions and osmolality stimulate the motility of spermatozoa by changes in the properties of the plasma membrane including its potential and its ionic conductance. The inhibitory role of high osmolality of the swimming medium (more than 100 mosmol kg(-1)) and insufficient osmolality of the seminal plasma to inhibit semen motility suggested that osmolality is not the principal factor preventing sperm motility in seminal fluid but that K+ is a major inhibitory factor of sperm motility in seminal plasma.
DOI: 10.1530/rep.1.00244
PubMed: 15579600
Affiliations:
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Mahmoud" sort="Karami, Mahmoud" uniqKey="Karami M" first="Mahmoud" last="Karami">Mahmoud Karami</name></author><author><name sortKey="Amiri, Bagher Mojazi" sort="Amiri, Bagher Mojazi" uniqKey="Amiri B" first="Bagher Mojazi" last="Amiri">Bagher Mojazi Amiri</name></author><author><name sortKey="Akhoundzadeh, Mohammd Ali" sort="Akhoundzadeh, Mohammd Ali" uniqKey="Akhoundzadeh M" first="Mohammd Ali" last="Akhoundzadeh">Mohammd Ali Akhoundzadeh</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2004">2004</date><idno type="RBID">pubmed:15579600</idno><idno type="pmid">15579600</idno><idno type="doi">10.1530/rep.1.00244</idno><idno type="wicri:Area/PubMed/Corpus">000552</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000552</idno><idno type="wicri:Area/PubMed/Curation">000552</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000552</idno><idno 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Faculty of Natural Resources, University of Tehran, PO Box 31585-4314, Karaj, Iran.</nlm:affiliation><country xml:lang="fr">Iran</country><wicri:regionArea>Department of Fisheries and Environmental Sciences, Faculty of Natural Resources, University of Tehran, PO Box 31585-4314, Karaj</wicri:regionArea><wicri:noRegion>Karaj</wicri:noRegion></affiliation></author><author><name sortKey="Cosson, Jacky" sort="Cosson, Jacky" uniqKey="Cosson J" first="Jacky" last="Cosson">Jacky Cosson</name></author><author><name sortKey="Karami, Mahmoud" sort="Karami, Mahmoud" uniqKey="Karami M" first="Mahmoud" last="Karami">Mahmoud Karami</name></author><author><name sortKey="Amiri, Bagher Mojazi" sort="Amiri, Bagher Mojazi" uniqKey="Amiri B" first="Bagher Mojazi" last="Amiri">Bagher Mojazi Amiri</name></author><author><name sortKey="Akhoundzadeh, Mohammd Ali" sort="Akhoundzadeh, Mohammd Ali" uniqKey="Akhoundzadeh M" first="Mohammd Ali" last="Akhoundzadeh">Mohammd Ali Akhoundzadeh</name></author></analytic><series><title level="j">Reproduction (Cambridge, England)</title><idno type="ISSN">1470-1626</idno><imprint><date when="2004" type="published">2004</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Cations</term><term>Environment</term><term>Fishes (physiology)</term><term>Hydrogen-Ion Concentration</term><term>Male</term><term>Osmolar Concentration</term><term>Potassium (pharmacology)</term><term>Sperm Motility (physiology)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Potassium</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Cations</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Fishes</term><term>Sperm Motility</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Environment</term><term>Hydrogen-Ion Concentration</term><term>Male</term><term>Osmolar Concentration</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Sperm motility is a prerequisite factor determining semen quality and fertilizing capacity. The effects of environmental factors including pH, cations and osmolality as well as the role of dilution rate on sperm motility parameters in Acipenser persicus were studied. The best pH and dilution rate for activation of spermatozoa were pH 8.0 and dilution ratio 1:50. Ionic factors can stimulate the initiation of sperm activation. The maximum percentage of motile sperm and total duration of sperm motility were observed in solutions containing 25 mM NaCl, 0.2 mM KCl, 3 mM CaSO4, 10 mM MgSO4 and sucrose with an osmolality of 50 mosmol kg(-1). The present study provides us with some basic knowledge about sturgeon spermatozoa biosensitivity to ionic and osmolality effects. A sensitivity of A. persicus sperm was observed after induction of activation of sperm motility in solution containing cations or sucrose with high osmolality. Concentrations more than 50 mM Na+, more than 1 mM K+, more than 3 mM Ca2+ and more than 10 mM Mg2+ had negative effects on sperm motility. Also, osmolality more than 100 mosmol kg(-1) had an inhibitory effect. It is clear that ions and osmolality stimulate the motility of spermatozoa by changes in the properties of the plasma membrane including its potential and its ionic conductance. The inhibitory role of high osmolality of the swimming medium (more than 100 mosmol kg(-1)) and insufficient osmolality of the seminal plasma to inhibit semen motility suggested that osmolality is not the principal factor preventing sperm motility in seminal fluid but that K+ is a major inhibitory factor of sperm motility in seminal plasma.</div></front></TEI><affiliations><list><country><li>Iran</li></country></list><tree><noCountry><name sortKey="Akhoundzadeh, Mohammd Ali" sort="Akhoundzadeh, Mohammd Ali" uniqKey="Akhoundzadeh M" first="Mohammd Ali" last="Akhoundzadeh">Mohammd Ali Akhoundzadeh</name><name sortKey="Amiri, Bagher Mojazi" sort="Amiri, Bagher Mojazi" uniqKey="Amiri B" first="Bagher Mojazi" last="Amiri">Bagher Mojazi Amiri</name><name sortKey="Cosson, Jacky" sort="Cosson, Jacky" uniqKey="Cosson J" first="Jacky" last="Cosson">Jacky Cosson</name><name sortKey="Karami, Mahmoud" sort="Karami, Mahmoud" uniqKey="Karami M" first="Mahmoud" last="Karami">Mahmoud Karami</name></noCountry><country name="Iran"><noRegion><name sortKey="Alavi, Sayyed Mohammad Hadi" sort="Alavi, Sayyed Mohammad Hadi" uniqKey="Alavi S" first="Sayyed Mohammad Hadi" last="Alavi">Sayyed Mohammad Hadi Alavi</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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