Energetics of fish spermatozoa: The proven and the possible

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

Energetics of fish spermatozoa: The proven and the possible

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40103 - Fishery

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)

Publication year

2017

Confidentiality

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

Name of the periodical

Aquaculture

ISSN

0044-8486

e-ISSN

—

Volume of the periodical

472

Issue of the periodical within the volume

1 April 2017

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

13

Pages from-to

60-72

UT code for WoS article

000401203800005

EID of the result in the Scopus database

2-s2.0-84976484081