Development of gravity-sensing organs in altered gravity conditions: opposite conclusions from an amphibian and a molluscan preparation.

M. L. Wiederhold, H. A. Pedrozo, J. L. Harrison, R. Hejl, W. Gao

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Researchers examined early otolith development in microgravity using fertilized eggs of the Japanese newt, Cynops pyrrhogaster in space flight. Ground experiments examined statocyst, embryonic statolith volume, and statoconia in the post-metamorphic marine mollusk Aplysia californica reared at 1-g and 2-5.7-g. Results indicate that exposure to hypergravity decreased the otolith mass to compensate for increased weight in Aplysia. In the Cynops, there was no compensatory difference in otolith mass, though otoconia production in the endolymphatic system was enhanced.

Original languageEnglish (US)
Pages (from-to)P51-54
JournalJournal of gravitational physiology : a journal of the International Society for Gravitational Physiology
Volume4
Issue number2
StatePublished - Jul 1997

ASJC Scopus subject areas

  • Medicine(all)

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