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Statements

Subject Item
n2:RIV%2F60076658%3A12520%2F14%3A43886840%21RIV15-GA0-12520___
rdf:type
skos:Concept n7:Vysledek
rdfs:seeAlso
http://www.sciencedirect.com/science/article/pii/S1642431X13003124
dcterms:description
For successful fertilization, spermatozoa must access, bind, and penetrate an egg, processes for which activation of spermatozoa motility is a prerequisite. Fish spermatozoa are stored in seminal plasma where they are immotile during transit through the genital tract of most externally fertilizing teleosts and chondrosteans. Under natural conditions, motility is induced immediately following release of spermatozoa from the male genital tract into the aqueous environment. The nature of an external trigger for the initiation of motility is highly dependent on the aquatic environment (fresh or salt water) and the species' reproductive behavior. Triggering signals include osmotic pressure, ionic and gaseous components of external media and, in some cases, egg-derived substances. Extensive study of environmental factors influencing fish spermatozoa motility has led to the proposal of several mechanisms of activation in freshwater and marine fish. However, the signal transduction pathways initiated by these mechanisms remain clear. This review presents the current knowledge with respect to (1) membrane reception of the activation signal and its transduction through the spermatozoa plasma membrane via the external membrane components, ion channels, and aquaporins; (2) cytoplasmic trafficking of the activation signal; (3) final steps of the signaling, including signal transduction to the axonemal machinery, and activation of axonemal dyneins and regulation of their activity; and (4) pathways supplying energy for flagellar motility. For successful fertilization, spermatozoa must access, bind, and penetrate an egg, processes for which activation of spermatozoa motility is a prerequisite. Fish spermatozoa are stored in seminal plasma where they are immotile during transit through the genital tract of most externally fertilizing teleosts and chondrosteans. Under natural conditions, motility is induced immediately following release of spermatozoa from the male genital tract into the aqueous environment. The nature of an external trigger for the initiation of motility is highly dependent on the aquatic environment (fresh or salt water) and the species' reproductive behavior. Triggering signals include osmotic pressure, ionic and gaseous components of external media and, in some cases, egg-derived substances. Extensive study of environmental factors influencing fish spermatozoa motility has led to the proposal of several mechanisms of activation in freshwater and marine fish. However, the signal transduction pathways initiated by these mechanisms remain clear. This review presents the current knowledge with respect to (1) membrane reception of the activation signal and its transduction through the spermatozoa plasma membrane via the external membrane components, ion channels, and aquaporins; (2) cytoplasmic trafficking of the activation signal; (3) final steps of the signaling, including signal transduction to the axonemal machinery, and activation of axonemal dyneins and regulation of their activity; and (4) pathways supplying energy for flagellar motility.
dcterms:title
Motility of fish spermatozoa: from external signaling to flagella response Motility of fish spermatozoa: from external signaling to flagella response
skos:prefLabel
Motility of fish spermatozoa: from external signaling to flagella response Motility of fish spermatozoa: from external signaling to flagella response
skos:notation
RIV/60076658:12520/14:43886840!RIV15-GA0-12520___
n4:aktivita
n19:P
n4:aktivity
P(ED2.1.00/01.0024), P(GAP502/11/0090), P(GAP502/12/1973)
n4:cisloPeriodika
3
n4:dodaniDat
n12:2015
n4:domaciTvurceVysledku
Dzyuba, Viktoria Cosson, Jacky
n4:druhVysledku
n15:J
n4:duvernostUdaju
n14:S
n4:entitaPredkladatele
n17:predkladatel
n4:idSjednocenehoVysledku
30607
n4:idVysledku
RIV/60076658:12520/14:43886840
n4:jazykVysledku
n6:eng
n4:klicovaSlova
Motility; Signal transduction; Dynein; Axoneme; Fish sperm
n4:klicoveSlovo
n8:Fish%20sperm n8:Axoneme n8:Motility n8:Signal%20transduction n8:Dynein
n4:kodStatuVydavatele
PL - Polská republika
n4:kontrolniKodProRIV
[37FA7E14C458]
n4:nazevZdroje
REPRODUCTIVE BIOLOGY
n4:obor
n18:EB
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
2
n4:projekt
n5:GAP502%2F11%2F0090 n5:ED2.1.00%2F01.0024 n5:GAP502%2F12%2F1973
n4:rokUplatneniVysledku
n12:2014
n4:svazekPeriodika
14
n4:tvurceVysledku
Dzyuba, Viktoria Cosson, Jacky
n4:wos
000341121200001
s:issn
1642-431X
s:numberOfPages
11
n10:doi
10.1016/j.repbio.2013.12.005
n16:organizacniJednotka
12520