Document Detail

Changes of element ratios of cultured cells from dune reed under adverse environmental conditions.
MedLine Citation:
PMID:  12117229     Owner:  NLM     Status:  MEDLINE    
Dune reed, as an ecotype of reed plant (Phragmites communis Trin.), is an ideal material for studies on the adaptations of plant to environmental conditions. Scanning electron microscope, energy-dispersive X-ray analysis, and plant tissue culture techniques were used to investigate the effect of extreme temperature, salt, and polyethylene glycol-induced osmotic stress on the intracellular elements K, Na, Ca, and Cl in cultured cells from dune reed and swamp reed (as control). The results indicated that the percentages of the studied elements in dune reed cells exposed to various stresses increased or decreased obviously compared to the swamp reed cells. It has been found that a pattern of absorbing K and discharging Na exists in dune reed cells, which did not exist in swamp reed cells. The pattern is thought to be a significant physiological mechanism of the dune reed response to adverse environmental factors. In addition, the percentages of Ca and Cl in dune reed cells were also shown to increase at high temperature. The growth of cells along with their surface features under different stress conditions were observed and the results are discussed.
Suxia Cui; Wei Wang; Cheng-lie Zhang
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Biological trace element research     Volume:  87     ISSN:  0163-4984     ISO Abbreviation:  Biol Trace Elem Res     Publication Date:  2002  
Date Detail:
Created Date:  2002-07-15     Completed Date:  2002-12-19     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7911509     Medline TA:  Biol Trace Elem Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  201-9     Citation Subset:  IM    
Institute of Botany & Plant Physiology, School of Life Science, Lanzhou University, Gansu, People's Republic of China.
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MeSH Terms
Cells, Cultured
Electron Probe Microanalysis
Microscopy, Electron, Scanning
Poaceae / cytology,  metabolism*

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