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盐胁迫下外源硅调节金丝小枣根和叶片膜脂肪酸的研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2006年02期
Page:
89-93
Column:
研究论文
publishdate:
2006-02-20

Article Info:/Info

Title:
Exogenous Silicon Regulates Membrane Fatty Acid in Root and Leaf of Ziziphus jujuba cv. Jinsixiaozao under Salt Stress
Article ID:
1000-2006(2006)02-0089-05
Author(s):
XU Cheng-xiang12 MA Yan-ping2 XU Xi-zeng1* HU Heng-kang2
1. College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037, China; 2. Department of Horticulture Jinling College of Science and Technology, Nanjing 210038, China
Keywords:
Si NaCI stress Ziziphusjujuba cv. Jinsixiaozao Membrane fatty acid MembraneFluidity
Classification number :
S718.43
DOI:
10.3969/j.jssn.1000-2006.2006.02.022
Document Code:
A
Abstract:
Effects of silicon (Si) on membrane fatty acid content, composition and fluidity in root and leaf of two-year old seedlings of Ziziphus jujuba cv. Jinsixiaozao under salt stress were studied. The results showed that the addition of Si had different effects on these parameters in root and leaf of the plant under NaCI stress: in root, the saturate fatty acid content decreased with added Si compared with that of no Si addition. Both the membrane unsaturate fatty acid content and the index of unsaturate fatty acid of the root were promoted under NaC1 stress with Si addition, but the effects of exogenous Si on membrane fatty acid (MFA) content and composition of the leaf were contrary to those of in root. The results from this study suggestes that Si regulates the content, composition and fluidity of Ziziphus jujuba cv. J insixiaozao under NaC1 stress, which is closely related to the physiological functions and growth characteristics of the plant organs.

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Last Update: 2013-05-20