• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Plant Physiology >Stability and Synthesis of Phospholipids during Desiccation and Rehydration of a Desiccation-Tolerant and a Desiccation-Intolerant Moss
【2h】

Stability and Synthesis of Phospholipids during Desiccation and Rehydration of a Desiccation-Tolerant and a Desiccation-Intolerant Moss

机译：耐脱水和耐脱水青苔的脱水和再水化过程中磷脂的稳定性和合成

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The fatty acid composition of the phospholipids from the desiccation-tolerant moss Tortula ruralis (Hedw.) Gaertn, Meyer and Scherb and the desiccation-intolerant moss Cratoneuron filicinum has been determined. No changes in composition occur in either moss as a consequence of rapid drying, but, after slow drying, there is a decline in some unsaturated fatty acids. Upon rehydration of T. ruralis after slow drying, these acids decline further; however, within 105 minutes, they regain the same levels as those in undesiccated controls. A smaller and more transient decline occurs after rapid desiccation. Most phospholipid unsaturated fatty acids decrease during rehydration of C. filicinum, and their levels are not recovered. After both rapid and slow drying of T. ruralis, acetate and glycerol are incorporated into the phospholipid fraction, although de novo synthesis, alone, might not account for the increase in unsaturated fatty acids upon rehydration. Very little acetate or glycerol is incorporated during rehydration of C. filicinum. Loss of unsaturated fatty acids from the phospholipids of T. ruralis does not appear to be associated with increased lipoxygenase activity. Furthermore, there is little correlation between the extent of peroxidation of fatty acids due to desiccation and changes in the phospholipid fraction.
机译：已经确定了耐干燥的苔藓Turtural Ruralis（Hedw。）Gaertn，Meyer和Scherb和不干燥的苔藓Cratoneuron filicinum的磷脂的脂肪酸组成。快速干燥的结果是，两种苔藓的成分均未发生变化，但缓慢干燥后，某些不饱和脂肪酸减少了。缓慢干燥后，在农村铁杉补液后，这些酸进一步下降。但是，在105分钟内，它们恢复了与未干燥对照组相同的水平。快速干燥后，出现较小的瞬态下降。大多数磷脂不饱和脂肪酸在丝状梭状芽孢杆菌复水过程中减少，并且其水平未恢复。在快速干燥和缓慢干燥后，将乙酸盐和甘油掺入磷脂馏分中，尽管单独进行从头合成可能无法解释水合后不饱和脂肪酸的增加。在丝状梭状芽孢杆菌的再水化过程中，很少掺入乙酸盐或甘油。 T.uralis的磷脂中不饱和脂肪酸的损失似乎与脂氧合酶活性的增加无关。此外，由于干燥引起的脂肪酸的过氧化程度与磷脂部分的变化之间几乎没有相关性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号