Phospholipid degradation in frozen plant cells associated with freezing injury |
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| Authors: | Yoshida S Sakai A |
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| Affiliation: | The Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan. |
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| Abstract: | A striking degradation of phosphatidylcholine into phosphatidic acid was observed in the cortical tissues of less hardy poplar (Poplus euramericani cv. gelrica), when the tissues were frozen below a lethal temperature. No change in phospholipids was detected during freezing or even after thawing in the cortical tissues of hardy poplar which survived slow freezing to −30 C or even immersion in liquid N2 after prefreezing to −50 C. The degradation of phosphatidylcholine during freezing appears to be intimately associated with freezing injury. |
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