Chemical signals play a crucial role in the communication between sperm and egg that facilitates fertilization, but the identity of the signaling molecules involved remains unclear. In May 15 Journal of Experimental Biology, Jeffrey Riffell and colleagues from University of California, Los Angeles, show that the amino acid L-tryptophan is necessary and sufficient to promote recruitment of sperm to the surface of eggs in red abalone (Haliotis rufescens).Riffell et al. investigated the behavioral
Chemical signals play a crucial role in the communication between sperm and egg that facilitates fertilization, but the identity of the signaling molecules involved remains unclear. In May 15
Riffell
"Elucidation of the sperm attractant for red abalone therefore provides a powerful new ...
The liquid world of fetal development provides a rich source of nutrition and protection tailored to meet the needs of the growing fetus.
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