Ultrastructure of wheat seedling mitochondria under anoxia and postanoxia
Protoplasma, ISSN: 0033-183X, Vol: 156, Issue: 1-2, Page: 39-44
1990
- 19Citations
- 6Captures
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Article Description
An ultrastructural study of cells on intact wheat Triticum aestivum seedlings showed that the root tip cells were more sensitive to anoxia than other organs. Root growth stopped completely in anaerobic medium. After 1.5 h of anoxia noticeable mitochondrial swelling, reduction of cristae and matrix clarification were observed. These early destructive changes were reversible; after transfer of the seedlings into aerobic medium, mitochondrial features were soon completely restored. Interestingly, the mitochondria also recovered if the seedlings were kept uninterruptedly under strict anoxia for 3-4.5 h. Irreversible swelling and mitochondrial degradation were observed only after 6 to 9 h anoxia. Leaf meristem ultrastructure was most resistant to anoxia, although the dynamics of change in mitochondrial fine structure was, on the whole, similar to roots. Irreversible degradation of leaf ultrastructure occurred only after 48-72 h anoxia. Similar changes were observed in the ultrastructure of coleoptile cells; time-dependence was closer to that of roots rather than leaves. © 1990 Springer-Verlag.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0001978039&origin=inward; http://dx.doi.org/10.1007/bf01666504; http://link.springer.com/10.1007/BF01666504; http://link.springer.com/content/pdf/10.1007/BF01666504; http://link.springer.com/content/pdf/10.1007/BF01666504.pdf; http://link.springer.com/article/10.1007/BF01666504/fulltext.html; http://www.springerlink.com/index/pdf/10.1007/BF01666504; http://www.springerlink.com/index/10.1007/BF01666504; https://dx.doi.org/10.1007/bf01666504; https://link.springer.com/article/10.1007/BF01666504
Springer Science and Business Media LLC
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