Document Detail

Cell proliferation of Paramecium tetraurelia under clinorotation.
MedLine Citation:
PMID:  15858377     Owner:  NASA     Status:  MEDLINE    
It has been reported that Paramecium proliferates faster under microgravity in space, and slower under hypergravity (Kato et al., 2003). Effects of gravity on cell proliferation could be discussed in terms of energetics of swimming. Because of the characteristics of 'gravikinesis' as well as 'gravitaxis', Paramecium would decrease the energy expenditure under microgravity and increase it under hypergravity. The larger stock of energy would enhance the proliferation under microgravity. In order to simulate the effect of microgravity, we investigated the proliferation under clinorotation. When cells were rotated at 2.5 rpm, the proliferation rate decreased. Similar but less pronounced decrease was also found under low speed clinorotation (0.2 rpm).
Satoe Sawai; Yoshihiro Mogami; Shoji A Baba
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Uchū Seibutsu Kagaku     Volume:  18     ISSN:  0914-9201     ISO Abbreviation:  Biol. Sci. Space     Publication Date:  2004 Nov 
Date Detail:
Created Date:  2005-04-28     Completed Date:  2005-08-31     Revised Date:  2009-06-04    
Medline Journal Info:
Nlm Unique ID:  100972048     Medline TA:  Biol Sci Space     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  173-4     Citation Subset:  S    
Graduate School of Humanities and Sciences, Ochanomizu University.
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MeSH Terms
Cell Division
Cell Proliferation*
Paramecium tetraurelia / cytology,  growth & development*,  physiology*
Weightlessness Simulation*

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