MISC

2008年1月

Long- and short-term freezing induce different types of injury in Arabidopsis thaliana leaf cells

PLANTA
  • M. Nagao
  • ,
  • K. Arakawa
  • ,
  • D. Takezawa
  • ,
  • S. Fujikawa

227
2
開始ページ
477
終了ページ
489
記述言語
英語
掲載種別
DOI
10.1007/s00425-007-0633-9
出版者・発行元
SPRINGER

In nature, intact plant cells are subjected to freezing and can remain frozen for prolonged periods. We assayed the survival of Arabidopsis thaliana leaf cells following freezing and found that short- and long-term exposures produced different types of cellular injury. To identify the cause of these injuries, we examined the ultrastructure of the cell plasma membranes. Our results demonstrate that ultrastructural changes in the plasma membrane due to short-term freezing are associated with interbilayer events, including close apposition of the membranes. In both acclimated and non-acclimated leaf cells, these interbilayer events resulted in "fracture-jump lesions" in the plasma membrane. On the other hand, long-term freezing was associated with the development of extensive protein-free areas caused by the aggregation of intramembrane proteins with consequent vesiculation of the affected membrane regions; this effect was clearly different from the ultrastructural changes induced by interbilayer events. We also found that prolonged exposure of non-acclimated leaf cells to a concentrated electrolyte solution produced effects that were similar to those caused by long-term freezing, suggesting that the ultrastructural changes observed in the plasma membrane following long-term freezing are produced by exposure of the leaf cells to a concentrated electrolyte solution. This study illustrates multiple causes of freezing-induced injury in plant cells and may provide useful information regarding the functional role of the diverse changes that occur during cold acclimation.

Web of Science ® 被引用回数 : 19

リンク情報
DOI
https://doi.org/10.1007/s00425-007-0633-9
CiNii Articles
http://ci.nii.ac.jp/naid/80017945202
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/17924137
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000251373400018&DestApp=WOS_CPL

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