Morphology, chemical contents and physiology of chondrostean fish sperm: a comparative study between Siberian sturgeon (Acipenser baerii) and sterlet (Acipenser ruthenus)

0366279 - BC 2012 RIV DE eng J - Článek v odborném periodiku
Pšenička, M. - Hadi Alavi, S.M. - Číčová, Zdeňka - Gela, D. - Cosson, J. - Nebesářová, Jana - Linhart, O.
Morphology, chemical contents and physiology of chondrostean fish sperm: a comparative study between Siberian sturgeon (Acipenser baerii) and sterlet (Acipenser ruthenus).
Journal of Applied Ichthyology. Roč. 24, č. 4 (2008), s. 371-377. ISSN 0175-8659. E-ISSN 1439-0426
Grant ostatní: GA ČR(CZ) GA524/06/0817
Program: GA
Výzkumný záměr: CEZ:AV0Z60220518
Klíčová slova: NORTH-AMERICAN STURGEONS * TRANSMISSION ELECTRON-MICROSCOPY * CELL ULTRASTRUCTURE * SHOVELNOSE STURGEON * LAKE STURGEON * MOTILITY * SPERMATOZOA * PADDLEFISH * SALMON * OSMOLALITY
Kód oboru RIV: EC - Imunologie
Impakt faktor: 0.638, rok: 2008

The present study was carried out with two sturgeon species, Siberian sturgeon (Acipenser baerii) and sterlet (A. ruthenus) to compare spermatological parameters to better Understand inter-species differences. Significant differences between morphometric features were observed such as acrosome length, acrosome width, head length, midpiece width and flagellar length. while midpiece length did not reveal such differences. The sterlet has a shorter spermatozoon than the Siberian sturgeon. Ultrastructural parameters vary significantly in terms of length of the nucleus, diameter of the endonuclear canals (EC), size of posterolateral projections (PP) and diameter of flagellum. Significant differences were observed in Na(+), K(+) and Cl(-) concentrations in the seminal plasma as well as in sperm velocity.The observed biochemical and physiological differences should be also considered for the development of methods for controlled reproduction and for sperm cryopreservation techniques.
Trvalý link: http://hdl.handle.net/11104/0201329