## Abstract The sea cucumber __Holothuria atra__ is a broadcast spawner. Among broadcast spawners, fertilization occurs by means of an egg‐derived substance(s) that induces sperm flagellar motility activation and chemotaxis. __Holothuria atra__ sperm were quiescent in seawater, but exhibited flagel
✦ LIBER ✦
Egg activation and timing of sperm acceptance by an egg in honeybees (Apis melliferaL.)
✍ Scribed by K. Sasaki; Y. Obara
- Publisher
- Springer
- Year
- 2002
- Tongue
- English
- Weight
- 160 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0020-1812
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## Abstract Mammalian sperm possess guanine nucleotide‐binding regulatory proteins (G proteins) that are involved in signal transduction pathways leading to __zona pellucida__ (ZP)‐mediated acrosomal exocytosis. We have previously examined ZP‐G protein dynamics in mouse sperm homogenates, as well a