Energetics of fish spermatozoa: The proven and the possible

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F17%3A43895308" target="_blank" >RIV/60076658:12520/17:43895308 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0044848616302952" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0044848616302952</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.aquaculture.2016.05.038" target="_blank" >10.1016/j.aquaculture.2016.05.038</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Energetics of fish spermatozoa: The proven and the possible

Popis výsledku v původním jazyce

Main features specific to sperm of fish with external fertilization are 1 the seminal fluid osmolality, and in several species, some ions prevent sperm motility in the genital track; 2 transfer from seminal fluid into sea-or freshwater triggers full motility due to osmotic and/or ionic signal; 3 immediately after activation, fish sperm swim with very high efficiency; 4 the motility period is limited to a very short duration for freshwater sperm and not for much longer in-case of marine fish spermatozoa; 5 most motility parameters are decreasing and wave shape is changing during the motility period; 6 the regulation of axonemal motility by ionic concentration, as well as by ATP concentration and other substances, can be observed in vitro by using membrane-deprived spermatozoa; 7 the chemical energy available in fish spermatozoa is rapidly exhausted during the swimming period; 8 the membrane potential of the spermatozoon represents an important aspect of the cell electro-chemical energy homeostasis; 9 the ultimate task for sperm, before fertilization, is to meet an egg, and this task is facilitated by chemotaxis. The present chapter will tentatively deal with some of these salient features such as a osmolality and ionic signals controlling fast but short-lasting motility in connection with ATP and other energetic compounds management; b role of sperm electro-chemical potential in the trans-membrane management of this complementary aspect of sperm energetics; c considerations on physical energy needed by moving fish flagella; and finally, d how oriented motility governs sperm behavior while swimming toward egg. Finally, recent studies on applied aspects of fish sperm bioenergetics are summarized.

Název v anglickém jazyce

Energetics of fish spermatozoa: The proven and the possible

Popis výsledku anglicky

Main features specific to sperm of fish with external fertilization are 1 the seminal fluid osmolality, and in several species, some ions prevent sperm motility in the genital track; 2 transfer from seminal fluid into sea-or freshwater triggers full motility due to osmotic and/or ionic signal; 3 immediately after activation, fish sperm swim with very high efficiency; 4 the motility period is limited to a very short duration for freshwater sperm and not for much longer in-case of marine fish spermatozoa; 5 most motility parameters are decreasing and wave shape is changing during the motility period; 6 the regulation of axonemal motility by ionic concentration, as well as by ATP concentration and other substances, can be observed in vitro by using membrane-deprived spermatozoa; 7 the chemical energy available in fish spermatozoa is rapidly exhausted during the swimming period; 8 the membrane potential of the spermatozoon represents an important aspect of the cell electro-chemical energy homeostasis; 9 the ultimate task for sperm, before fertilization, is to meet an egg, and this task is facilitated by chemotaxis. The present chapter will tentatively deal with some of these salient features such as a osmolality and ionic signals controlling fast but short-lasting motility in connection with ATP and other energetic compounds management; b role of sperm electro-chemical potential in the trans-membrane management of this complementary aspect of sperm energetics; c considerations on physical energy needed by moving fish flagella; and finally, d how oriented motility governs sperm behavior while swimming toward egg. Finally, recent studies on applied aspects of fish sperm bioenergetics are summarized.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40103 - Fishery

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Aquaculture

ISSN

0044-8486

e-ISSN

—

Svazek periodika

472

Číslo periodika v rámci svazku

1 April 2017

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

60-72

Kód UT WoS článku

000401203800005

EID výsledku v databázi Scopus

2-s2.0-84976484081