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Amphibian egg cytoplasm response to altered g-forces and gravity orientationElucidation of dorsal/ventral polarity and primary embryonic axis development in amphibian embryos requires an understanding of cytoplasmic rearrangements in fertile eggs at the biophysical, physiological, and biochemical levels. Evidence is presented that amphibian egg cytoplasmic components are compartmentalized. The effects of altered orientation to the gravitational vector (i.e., egg inversion) and alterations in gravity force ranging from hypergravity (centrifugation) to simulated microgravity (i.e., horizontal clinostat rotation) on cytoplasmic compartment rearrangements are reviewed. The behavior of yolk compartments as well as a newly defined (with monoclonal antibody) nonyolk cytoplasmic compartment, in inverted eggs and in eggs rotated on horizontal clinostats at their buoyant density, is discussed.
Document ID
19870065705
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Neff, A. W.
(Indiana Univ. Bloomington, IN, United States)
Smith, R. C.
(Indiana Univ. Bloomington, IN, United States)
Malacinski, G. M.
(Indiana University Bloomington, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Publication Information
Publication: Advances in Space Research
Volume: 6
Issue: 12 1
ISSN: 0273-1177
Subject Category
Life Sciences (General)
Accession Number
87A52979
Funding Number(s)
CONTRACT_GRANT: NAG2-323
Distribution Limits
Public
Copyright
Other

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