Cysteine-glutathione disulfide, the sperm-release pheromone of the marine polychaete Nereis succinea (Annelida: Polychaeta)

Chemoecology ◽  
1998 ◽  
Vol 8 (1) ◽  
pp. 33-38 ◽  
Author(s):  
Erich Zeeck ◽  
Carsten T. Müller ◽  
Manfred Beckmann ◽  
Jörg D. Hardege ◽  
Ulrich Papke ◽  
...  
Keyword(s):  
Glutathione Disulfide ◽  
Sperm Release ◽  
Marine Polychaete ◽  
Nereis Succinea

Formation and Function of the Primary Tube During Settlement and Metamorphosis of the Marine Polychaete Hydroides elegans (Haswell, 1883) (Serpulidae)

2021 ◽  
Vol 240 (2) ◽  
pp. 82-94
Author(s):  
Megan J. Huggett ◽  
Eugenio J. Carpizo-Ituarte ◽  
Brian T. Nedved ◽  
Michael G. Hadfield
Keyword(s):  
Hydroides Elegans ◽  
Settlement And Metamorphosis ◽  
Marine Polychaete ◽  
And Function

208 Sperm Retention, Storage and Release from the Oviduct: A Story of Sugars, Steroids, and Channels

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 113-114
Author(s):  
David J Miller
Keyword(s):  
Reproductive Tract ◽  
Female Reproductive Tract ◽  
Sperm Protein ◽  
Cumulus Oocyte Complex ◽  
Sperm Release ◽  
Normal Increase ◽  
Complex Origin

Abstract Because mating is not always synchronized with ovulation, females from many species store sperm in the female reproductive tract until ovulation and fertilization. This may be done for short periods, a day or two for swine and cattle, or longer periods. Other mammals, such as some species of bats, store sperm for several months. Chickens and turkeys store sperm for 2–4 weeks and queens of some species of insects store sperm for over a decade in specialized structures. How sperm are retained, kept fertile for varying times and released is unclear. We have identified two specific carbohydrate motifs that are abundant in the porcine oviduct that bind and retain sperm in the isthmus. When immobilized, these two glycans lengthen sperm lifespan and suppress the normal increase in intracellular Ca2+ that normally accompanies capacitation. Porcine sperm can be released from oviduct cells and immobilized glycans by progesterone, perhaps of ovarian or cumulus-oocyte complex origin, which activates CatSper, a sperm-specific Ca2+ channel. Progesterone, as well as other compounds that stimulate hyperactivated motility, trigger sperm release, suggesting that hyperactivated motility is sufficient to release porcine sperm from oviduct glycans. We also have found that blocking proteasome-induced sperm protein lysis diminishes the number of sperm released from oviduct glycans. Finally, a transcriptomic approach has identified several groups of genes that are differentially regulated in both bovine and porcine oviducts from estrus animals that are storing sperm compared to oviducts from diestrus animals. This provides clues about how sperm lifespan is extended during storage.

scholarly journals Regulation of liver phosphorylase phosphatase by glutathione disulfide.

1980 ◽  
Vol 255 (5) ◽  
pp. 1928-1931
Author(s):  
M. Usami ◽  
H. Matsushita ◽  
T. Shimazu
Keyword(s):  
Glutathione Disulfide

scholarly journals An ecological genetic analysis of the settling behaviour of a marine polychaete:

Heredity ◽  
1978 ◽  
Vol 40 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Trudy F C Mackay ◽  
Roger W Doyle
Keyword(s):  
Genetic Analysis ◽  
Settling Behaviour ◽  
Marine Polychaete
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