Sperm and Spermatozoa Characteristics in the Siberian Sturgeon
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F18%3A43897602" target="_blank" >RIV/60076658:12520/18:43897602 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—
Alternative languages
Result language
angličtina
Original language name
Sperm and Spermatozoa Characteristics in the Siberian Sturgeon
Original language description
Sperm and spermatozoa in Siberian sturgeon are very interesting and specific from several points of view. Siberian sturgeon usually produces high volume of semen with relatively low sperm and protein concentration, which is partially explained by the atypical testicular morphology where spermatozoa are mixed with urine during passage through the kidneys to the Wolffian ducts. Sodium and chloride ions contribute most to the osmolality of the seminal fluid. Potassium ions are critical for immobilization of spermatozoa, while its antagonist is calcium ion, which triggers spermatozoa motility. The motility period is relatively long (2–3 min) with flagellum beat frequency about 50 Hz. The main characteristics of sturgeon spermatozoa are an elongated head with an acrosome containing acrosomal proteins. The flagellum is equipped with a fin for more efficient movement. During penetration into the egg micropyle, the acrosome undergoes acrosomal reactions, which include formation of fertilization filament and opening of posterolateral projections. The fertilization filament activates the egg and causes the formation of a perivitelline space, while the posterolateral projections serve as an anchor against release from the micropyle. The acrosomal reaction has been recognized to be important for fertilization and development.
Czech name
—
Czech description
—
Classification
Type
C - Chapter in a specialist book
CEP classification
—
OECD FORD branch
10604 - Reproductive biology (medical aspects to be 3)
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)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Book/collection name
The Siberian Sturgeon (Acipenser baerii, Brandt, 1869) Volume 1 - Biology
ISBN
978-3-319-61662-9
Number of pages of the result
20
Pages from-to
307-326
Number of pages of the book
496
Publisher name
Springer, Springer International Publishing AG, part of Springer Nature 2018
Place of publication
Cham
UT code for WoS chapter
—