Different swimming behaviors of sterlet (Acipenser ruthenus) spermatozoa close to solid and free surfaces.
Identifieur interne : 000452 ( Ncbi/Curation ); précédent : 000451; suivant : 000453Different swimming behaviors of sterlet (Acipenser ruthenus) spermatozoa close to solid and free surfaces.
Auteurs : S. Boryshpolets [République tchèque] ; J. Cosson ; V. Bondarenko ; E. Gillies ; M. Rodina ; B. Dzyuba ; O. LinhartSource :
- Theriogenology [ 1879-3231 ] ; 2013.
English descriptors
- KwdEn :
- MESH :
- physiology : Fishes, Movement, Sperm Motility, Sperm Tail, Spermatozoa.
- veterinary : Semen Analysis.
- Animals, Environment, Male, Models, Biological, Rotation, Surface Properties, Swimming.
Abstract
Spermatozoa tend to swim near surfaces. Such attraction toward surface vicinity was approximated by the force-dipole theoretical approach and hydrodynamic modeling, but the physical parameters of surfaces have not usually been included in these models and their effect on sperm mobility remains unknown. In spermatozoa, changes in wave parameters, together with rotation around their longitudinal axis and circling appear when movement takes place close to surfaces. Here we show, by analysis of microscopy images (including high-speed video), a strong influence of the liquid-solid interface on sterlet spermatozoa motility characteristics compared with motility near the liquid-gas interface. Sperm cells swam at 16% lower velocity near a liquid-solid interface, rotating at a stable frequency of 25 Hz, each 180° rotation corresponding to one beat cycle and circling clockwise (when observed from top). In case of spermatozoa close to a water-air interface, rotation and circling were sporadic and irregular. Sterlet spermatozoa movement near a surface affects their velocity and possibly causes rotation. These behaviors are highly dependent on the level of suppleness of the interface, as has been previously predicted by modeling. Our results enhance the understanding of how surfaces influence fish spermatozoa motility. These insights on the effects of surfaces on fish spermatozoa motility imply that widely used methods rating sperm motility, such as computer-assisted sperm analysis, might lead to erroneous results. Further study of sperm motility near surfaces is urgently needed to correct our rating methods and better understand sperm behavior in natural conditions. Improved evaluation of sperm motility behavior near surfaces could be used to determine physical properties of aquatic interfaces with various surfaces composed of different materials.
DOI: 10.1016/j.theriogenology.2012.09.011
PubMed: 23102849
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Boryshpolets</name><affiliation wicri:level="1"><nlm:affiliation>University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Vodňany, Czech Republic. sboryshpolets@frov.jcu.cz.</nlm:affiliation><country xml:lang="fr">République tchèque</country><wicri:regionArea>University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Vodňany</wicri:regionArea><wicri:noRegion>Vodňany</wicri:noRegion></affiliation></author><author><name sortKey="Cosson, J" sort="Cosson, J" uniqKey="Cosson J" first="J" last="Cosson">J. Cosson</name></author><author><name sortKey="Bondarenko, V" sort="Bondarenko, V" uniqKey="Bondarenko V" first="V" last="Bondarenko">V. 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Boryshpolets</name><affiliation wicri:level="1"><nlm:affiliation>University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Vodňany, Czech Republic. sboryshpolets@frov.jcu.cz.</nlm:affiliation><country xml:lang="fr">République tchèque</country><wicri:regionArea>University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Vodňany</wicri:regionArea><wicri:noRegion>Vodňany</wicri:noRegion></affiliation></author><author><name sortKey="Cosson, J" sort="Cosson, J" uniqKey="Cosson J" first="J" last="Cosson">J. Cosson</name></author><author><name sortKey="Bondarenko, V" sort="Bondarenko, V" uniqKey="Bondarenko V" first="V" last="Bondarenko">V. Bondarenko</name></author><author><name sortKey="Gillies, E" sort="Gillies, E" uniqKey="Gillies E" first="E" last="Gillies">E. Gillies</name></author><author><name sortKey="Rodina, M" sort="Rodina, M" uniqKey="Rodina M" first="M" last="Rodina">M. Rodina</name></author><author><name sortKey="Dzyuba, B" sort="Dzyuba, B" uniqKey="Dzyuba B" first="B" last="Dzyuba">B. Dzyuba</name></author><author><name sortKey="Linhart, O" sort="Linhart, O" uniqKey="Linhart O" first="O" last="Linhart">O. Linhart</name></author></analytic><series><title level="j">Theriogenology</title><idno type="eISSN">1879-3231</idno><imprint><date when="2013" type="published">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Environment</term><term>Fishes (physiology)</term><term>Male</term><term>Models, Biological</term><term>Movement (physiology)</term><term>Rotation</term><term>Semen Analysis (veterinary)</term><term>Sperm Motility (physiology)</term><term>Sperm Tail (physiology)</term><term>Spermatozoa (physiology)</term><term>Surface Properties</term><term>Swimming</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Fishes</term><term>Movement</term><term>Sperm Motility</term><term>Sperm Tail</term><term>Spermatozoa</term></keywords><keywords scheme="MESH" qualifier="veterinary" xml:lang="en"><term>Semen Analysis</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Environment</term><term>Male</term><term>Models, Biological</term><term>Rotation</term><term>Surface Properties</term><term>Swimming</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Spermatozoa tend to swim near surfaces. Such attraction toward surface vicinity was approximated by the force-dipole theoretical approach and hydrodynamic modeling, but the physical parameters of surfaces have not usually been included in these models and their effect on sperm mobility remains unknown. In spermatozoa, changes in wave parameters, together with rotation around their longitudinal axis and circling appear when movement takes place close to surfaces. Here we show, by analysis of microscopy images (including high-speed video), a strong influence of the liquid-solid interface on sterlet spermatozoa motility characteristics compared with motility near the liquid-gas interface. Sperm cells swam at 16% lower velocity near a liquid-solid interface, rotating at a stable frequency of 25 Hz, each 180° rotation corresponding to one beat cycle and circling clockwise (when observed from top). In case of spermatozoa close to a water-air interface, rotation and circling were sporadic and irregular. Sterlet spermatozoa movement near a surface affects their velocity and possibly causes rotation. These behaviors are highly dependent on the level of suppleness of the interface, as has been previously predicted by modeling. Our results enhance the understanding of how surfaces influence fish spermatozoa motility. These insights on the effects of surfaces on fish spermatozoa motility imply that widely used methods rating sperm motility, such as computer-assisted sperm analysis, might lead to erroneous results. Further study of sperm motility near surfaces is urgently needed to correct our rating methods and better understand sperm behavior in natural conditions. Improved evaluation of sperm motility behavior near surfaces could be used to determine physical properties of aquatic interfaces with various surfaces composed of different materials.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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