. "fish" . . . . . "2008-12-31+01:00"^^ . . . . "0"^^ . . "1"^^ . . . " sperm" . . "http://www.isvav.cz/projectDetail.do?rowId=GA524/06/0817"^^ . . "1"^^ . "2006-01-01+01:00"^^ . " reproduction" . "Ultrastruktura, energie a kompetice spermi\u00ED: Komparativn\u00ED studie s vyu\u017Eit\u00EDm dvou modelov\u00FDch druh\u016F chrupav\u010Dit\u00FDch a kostnat\u00FDch ryb" . "2009-10-22+02:00"^^ . . . " carp" . "2008-04-25+02:00"^^ . . . "For the project with spermatozoa ultrastructure, energetic and competition were used two groups of model species of chondrostean (Chondrostei) and teleostean (Teleostei) fish. Study on the spermatozoa ultramorphology and ultrastructure in fish, specially"@en . "GA524/06/0817" . "Ultrastructure, Energetic and Competition in Spermatozoa: A Comparative Study Using Two Model Species of Chondrostean and Teleostean Fishes"@en . . "P\u0159edlo\u017Een\u00FD projekt \u0159e\u0161il problematiku ultrasturktury, energie a kompetice spermi\u00ED u dvou modelov\u00FDch druh\u016F ryb, zahrnuj\u00EDc\u00ED chrupav\u010Dit\u00E9 (Chondrostei) a kostnat\u00E9 (Teleostei) druhy. Studie ultramorfologie a ultrastruktury spermi\u00ED se zam\u011B\u0159ila na objasn\u011Bn\u00ED pod"@cs . . "The proposed project will deal with spermatozoa ultrastructure, energetic and competition in two groups of model species of chondrostean (Chondrostei) and teleostean (Teleostei) fish. Study on the spermatozoa ultramorphology and ultrastructure in fish, specially focused on structure of axoneme and midpiece, to better understand the roles of mitochondria and basal body structures. This also involves studies of micromechanics and micro hydrodynamics of integrated machinery of axoneme with its associated membrane. Factors reviving motility and fertilizability in %22exhausted%22 spermatozoa of intact and demembranated spermatozoa of fish species. We anticipate the determination of activation/inhibition factors in both fish groups and firstly demonstrate that spermatozoa are able or unable fertilize the eggs with assessment of acrosome integrity. Energy requirement of machinery during spermatozoa motility for\u00A0understanding why duration of motility is so short with evaluation of ATP level. Investigate the" . . "fish; sperm; reproduction; carp; sturgeon"@en . "35"^^ . "35"^^ . "P\u0159edlo\u017Een\u00FD projekt se soust\u0159e\u010Fuje na \u0159e\u0161en\u00ED ultrasturktury, energie a kompetice spermi\u00ED u dvou modelov\u00FDch druh\u016F ryb, zahrnuj\u00EDc\u00ED chrupav\u010Dit\u00E9 (Chondrostei) a kostnat\u00E9 (Teleostei) druhy. Studie ultramorfologie a ultrastruktury spermi\u00ED se zam\u011B\u0159\u00ED na objasn\u011Bn\u00EDpodstaty strukturu bi\u010D\u00EDku a jeho st\u0159edn\u00ED \u010D\u00E1sti k pochopen\u00ED v\u00FDznamu struktury mitochondri\u00ED a bas\u00E1ln\u00ED \u010D\u00E1sti spermi\u00ED. Znalosti budou vyu\u017Eity p\u0159i studiu mikromechaniky a mikrohydrodynamiky integrovan\u00E9ho mechanismu bi\u010D\u00EDku a membr\u00E1ny. D\u00E1le bude sledov\u00E1n faktorznovuobnoven\u00ED motility a fertility u tzv. %22vy\u010Derpan\u00FDch%22 intaktn\u00EDch a demebranovan\u00FDch spermi\u00ED. U spermi\u00ED ryb s obnoven\u00FDm energetick\u00FDm potenci\u00E1l\u00A0bude zdokumentov\u00E1na\u00A0schopnnost inhibi\u010Dn\u00EDch/aktiva\u010Dn\u00EDch faktor\u016F a\u00A0op\u011Btovn\u00E9ho oplozen\u00ED jikry. Mechanismus pr\u016Fnikuspermie bude u chrupav\u010Dit\u00FDch ryb dopln\u011Bn o studiem akrozomov\u00E9 integrity. D\u00E1le bude sledov\u00E1n energetick\u00FD po\u017Eadavek ATP v\u00A0mechanismu motility spermi\u00ED s\u00A0orientac\u00ED na znalost, pro\u010D doba motility ryb\u00EDch spermi\u00ED je tak kr\u00E1tk\u00E1.\u00A0Dale se\u00A0soust\u0159ed\u00EDme na implikaci"@en .