Document Detail


Stimulation of elongation growth and cell wall loosening in rice coleoptiles under microgravity conditions in space.
MedLine Citation:
PMID:  12354926     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We analyzed the growth rate and the cell wall properties of coleoptiles of rice seedlings grown at 23.6 degrees C for 68.5, 91.5 and 136 h during the Space Shuttle STS-95 mission. In space, elongation growth of coleoptiles was stimulated and the cell wall extensibility increased. Also, the levels of the cell wall polysaccharides per unit length of coleoptiles and the relative content of the high molecular mass matrix polysaccharides decreased in space. These differences in the cell wall polysaccharides could be involved in increasing the cell wall extensibility, leading to growth stimulation of rice coleoptiles in space.
Authors:
Takayuki Hoson; Kouichi Soga; Ryuji Mori; Mizue Saiki; Yukiko Nakamura; Kazuyuki Wakabayashi; Seiichiro Kamisaka
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Plant & cell physiology     Volume:  43     ISSN:  0032-0781     ISO Abbreviation:  Plant Cell Physiol.     Publication Date:  2002 Sep 
Date Detail:
Created Date:  2002-09-30     Completed Date:  2003-01-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9430925     Medline TA:  Plant Cell Physiol     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  1067-71     Citation Subset:  IM; S    
Affiliation:
Department of Biology, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Japan. hoson@sci.osaka-cu.ac.jp
Space Flight Mission:
Flight Experiment; STS-95 Shuttle Project; manned; short duration
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MeSH Terms
Descriptor/Qualifier:
Adaptation, Physiological / physiology
Cell Wall / chemistry,  physiology*
Cotyledon / growth & development*,  metabolism
Extraterrestrial Environment*
Oryza sativa / growth & development*,  metabolism
Polysaccharides / analysis
Space Flight*
Stress, Mechanical
Time Factors
Weightlessness*
Chemical
Reg. No./Substance:
0/Polysaccharides

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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