Vitamin D is a versatile signalling molecule with a well-established role in the regulation of
calcium homeostasis and bone health. The spectrum of vitamin D target organs has …

Calcium is an essential ion which regulates sperm motility, capacitation and the acrosome
reaction (AR), three processes necessary for successful fertilization. The AR enables the …

In most species, fish spermatozoa activate their motility on contact with the external medium
(sea or fresh water depending of their reproductive habitat). Their flagella immediately …

after along period of spermatogenesis (several weeks to months), marine fish spermatozoa
are delivered at male spawning in seawater (sw) at the same time as ova. in some fish …

Ca2+ is known to have important roles in sperm chemotaxis, although the relationship
between intracellular Ca2+ concentration ([Ca2+] i) and modulation of the swimming and …

Background Successful mating of female mosquitoes typically occurs once, with the male
sperm being stored in the female spermatheca for every subsequent oviposition event. The …

Abstract Knowledge of sex determination has important implications in physiology, ecology
and genetics, but the evolutionary mechanisms of sex determination systems in turtles have …

After a long period of spermatogenesis (several weeks to months), marine fish spermatozoa
are delivered at male spawning in seawater (SW) at the same time as ova. In some fish …

When a spermatozoon shows chemotactic behavior, transient [Ca2+] i increases in the
spermatozoon are induced by an attractant gradient. The [Ca2+] i increase triggers a series …

Oyster aquaculture is expanding worldwide, where many farms rely on seed produced by
artificial spawning. As sperm motility and velocity are key determinants for fertilization …