Adult-to-Embryo Chemical Signaling in the Regulation of Larval Development in Trochophore Animals: Cellular and Molecular Mechanisms
The regulation of larval development by starved adults occurs in both freshwater snails, Helisoma trivolvis and marine polychaetes, Platynereis dumerilii. Serotonin (5-HT) links this environmental signal which is detected by larval apical sensory neurons to changes in larval development. A profile of the stage-dependent expression of 5-HT receptors and coupled G proteins is essential in this regulatory mechanism. The final effect on development depends on the modulation of the activity of the larval digestive system.
KeywordsSerotonin receptors chemical signaling larval developmental regulation Trochozoa
Unable to display preview. Download preview PDF.
- 1.Beklemishev, V. N. (1964) Principles of Comparative Anatomy of Invertebrates. Moscow: Nauka.Google Scholar
- 3.Ivanova-Kazas, O. M. (1995) Evolutionary Embryology of Animals. St. Peterburg: Nauka.Google Scholar
- 5.Nielsen, C. (2001) Animal Evolution: Interrelationships of the Living Phyla, 2nd edn. Oxford., UK: Oxford University Press.Google Scholar
- 6.Pawlik, J. R. (1992) Chemical ecology of the settlement of benthic marine invertebrates. Oceanogr. Mar. Biol. Annu. Rev. 30, 273–335.Google Scholar
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.