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《JOURNAL OF NORTHEAST NORMAL UNIVERSITY (NATURAL SCIENCE EDITION)》 2000-03
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Effects of saline-alkaline stress on the contents of nitrogen and several organisms of Aneurolepidium chinense

YAN Hong 1,SHI De cheng 1, YIN Shang jun 2, ZHAO Wei 3 (1.School of Life Science, Northeast Normal University, Changchun 130024, China; 2.Zhejiang Teacher's School of Agricultural Technology, Ningbo 315001, China; 3.Changchun Flight College of Ai  
Using Aneurolepidium chinense as the research object, stressed by NaCl(0~700 mmol/L) and Na 2CO 3(0~150 mmol/L). The experiment was carried out about determining the content of nitrogen and organic osmoticajustment matters. Results show that: A.chinense reacted differently to saline-alkaline stress. The density which A.chinense was 125 mmol/L under Na 2CO 3 stress. At the same of [Na +],the nitrogen content of A.chinense decreased more clearly under Na 2CO 3 stress. With [Na +] increasing, the content of proline and soluble sugar increased linely under NaCl stress, the content of proline and soluble sugar increased curvely under Na 2CO 3 stress. That is to say, at the low density, the content of proline and soluble sugar changed hardly. But after exceeding the density of 87.5 mmol/L, both of them increased quickly. The content of organic acid and citric acid didn't increase dearly under NaCl stress, and both of them increased obviously under Na 2CO 3 stress. At the same time, we proved that one of the most important organic acids was citric acid. Experiments show that: there was obviouse difference in the mechanism of saline-alkaline stress. it was different for A.chinense to adapt saline-alkaline stress in physiological mechanism.
【CateGory Index】: S54
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