[1]梅海军,王宁,李自阳,等.NaCl和Na2SO4胁迫对香樟幼苗生理特性的影响[J].西北林学院学报,2011,26(06):30-34.
　MEI Hai jun,WANG Ning,LI Zi yang,et al.Effects of NaCl and Na2SO4 Saline Stress on Ecophysiological Characteristics of Cinnamomum camphora Seedlings[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2011,26(06):30-34.
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NaCl和Na2SO4胁迫对香樟幼苗生理特性的影响
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第26卷
期数:
2011年06期
页码:
30-34
栏目:
森林生物学
出版日期:
2011-11-30

文章信息/Info

Title:
Effects of NaCl and Na2SO4 Saline Stress on Ecophysiological Characteristics of Cinnamomum camphora Seedlings
作者:
梅海军1; 王宁1; 2; 李自阳1; 苏金乐1*
1. 河南农业大学， 河南 郑州 450002； 2. 河南科技大学 林业职业学院， 河南 洛阳 471000
Author(s):
MEI Haijun1;  WANG Ning1; 2; LI Ziyang1;  SU Jingle1
1. Henan Agricultural University, Zhengzhou, Henan 450002, China； 2. Henan Foresty Vocational Technical College, Luoyang, Henan 471000, China
关键词:
香樟; 盐胁迫; 耐盐性
Keywords:
Cinnamomum camphora;  salt stress;  salt resistance
分类号:
S792.230.1
文献标志码:
A
摘要:
利用NaCl 和Na2SO4盐溶液模拟土壤盐胁迫，对2 a生香樟幼苗生理生化指标进行研究。结果表明：随胁迫程度的加强和胁迫时间的延长，叶片相对电导率逐渐升高，游离脯氨酸含量除低浓度NaCl处理在第42天时有所下降外,其余均呈现逐渐升高的趋势；超氧化物歧化酶、过氧化物酶和过氧化氢酶活性均表现为先升后降的趋势；同浓度梯度下，NaCl各处理保护酶活性高于Na2SO4各处理。香樟幼苗盐胁迫下表现出一定的适应性，适度的盐胁迫可增加香樟的耐盐性；同浓度条件下，Na2SO4处理对香樟的伤害更大。
Abstract:
Simulating soil stress with NaCl and Na2SO4 saline solution, physiological and biochemical indices of 2year old seedlings of Cinnamomum camphora were determined. The results showed that with the enhancement of salt stress and prolongation of treatment time, relative conductivity of the leaves increased gradually. In the day of 42, the content of free proline presented an increase trend except that treated by low concentration NaCl. The activities of protective enzymes, including superoxide dismutase, peroxidase and catalase, showed a tendency of increasing first and then decreasing. Under the same concentration gradients, the activities of protective enzyems treated by NaCl were higher than those treated by Na2SO4. The results indicated that C. camphora seedlings performanced some adaptabilities under salt stress, and salt tolerance of the seedlings accumulated with moderate salt stress; with the same concentration gradients, more serious damages were found in the seedlings treated by Na2SO4.

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备注/Memo

备注/Memo:
收稿日期：20101022修回日期：20101230 基金项目：河南省重点科技攻关计划项目（0624070035） 作者简介：梅海军，女，硕士研究生，主要从事园林植物抗性方面的研究。 *通讯作者：苏金乐，男，教授，博士生导师，主要从事园林植物抗性方面的研究。
更新日期/Last Update: 2011-12-31