毛白杨抗冻性低温诱导过程中糖的效应OA
Effect of Sugar on the Process of Cold-Acclimation-Induced Freezing Tolerance of Populus tomentosa
在低温锻炼和结合蔗糖处理的低温锻炼下,对毛白杨(Populus tomentosa)幼苗枝条和叶片的可溶性糖含量,以及幼苗存活率和抗冻性分别进行了测定.结果表明,低温锻炼明显提高了幼苗枝条和叶片的可溶性糖含量,同时也提高了幼苗的存活率和抗冻性.20%蔗糖处理对上述低温锻炼的作用有加强的效果.进一步分析发现,无论是单纯的低温锻炼还是结合蔗糖预处理的低温锻炼,幼苗枝条中可溶性糖含量的提高程度均较叶片明显,而且它们的含量增加与幼苗抗冻性的提高密切相关.…查看全部>>
Populus tomentosa seedlings for cold-acclimating were pretreated with or without 20% saccharose.Changes in the concentrations of total soluble sugar, the survival rates, and freezing tolerance of seedlings during cold acclimation were investigated. The results showed that cold acclimation increased the concentrations of total soluble sugar, the survival rates and freezing tolerance. Cold acclimation, combined with the saccharose-pretreat ment, enhanced the a…查看全部>>
林善枝;张志毅
北京林业大学毛白杨研究所,北京,100083北京林业大学毛白杨研究所,北京,100083
林学
毛白杨低温锻炼抗冻性存活率可溶性糖
Populus tomentosacold acclimationfreezing tolerancesurvival ratessoluble sugar
《中国林学(英文版)》 2001 (1)
1-6,6
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