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NaCl和Na2SO4胁迫下沼泽小叶桦的生理响应(PDF)

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

Issue:
2013年01期
Page:
132-136
Column:
城镇绿地特殊生境生态修复关键技术研究专栏
publishdate:
2013-01-15

Article Info:/Info

Title:
Effects of NaCl and Na2SO4 Stress on physiological characteristics in Betula microphylla
Author(s):
WANG Bin
Shanghai Landscape Gardening Research Institute,Shanghai 200232,China
Keywords:
Betula microphylla var paludosa Na2SO4 NaCl physiological characteristics
Classification number :
S793.9
DOI:
10.3969/j.issn.1000-2006.2013.01.024
Document Code:
A
Abstract:
The variations of chlorophyll content and some osmotic adjustment substances such as proline, soluble sugar and protein in leaves of Betula microphylla under Na2SO4 and NaCl stress were investigated. The results showed that the variation pattern of physiological characteristics under NaCl stress was same as that under Na2SO4 stress: the chlorophyll content decreased gradually; the contents of proline and soluble sugar increased significantly with the increment of salt concentration; the protein content decreased at first and then increased later under weaker Na+ stress; the protein content decreased gradually under stronger NaCl stress. An intensive change of these physiological characteristics was found under NaCl stress, suggesting that the injuries imposed by NaCl stress was greater than that by Na2SO4 stress, B. microphylla might partially adopt to SO2-4 due to long-term survival under their natural habitat.

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Last Update: 2013-01-15