| 吕金印,赵晖,冯万健.NaCl 胁迫对甜高粱幼苗保护酶活性等生理特性的影响[J].干旱地区农业研究,2008,(6):133~137 |
| NaCl 胁迫对甜高粱幼苗保护酶活性等生理特性的影响 |
| Effects of NaCl stress on activities of protective enzyme and physiological characteristics in sweet sorghum seedlings |
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| DOI：10.7606/j.issn.1000-7601.2008.06.26 |
| 中文关键词: 甜高粱 NaCl胁迫 生理指标 抗氧化酶 |
| 英文关键词:sweet sorghum NaCl stress physiological characteristics protective enzyme |
| 基金项目:黄土高原土壤侵蚀与旱地农业国家重点实验室基金(10501-179) |
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| 中文摘要: |
| 采用不同浓度NaCl溶液(100 mmol/L、200 mmol/L)胁迫处理甜高粱幼苗,测定了叶片中叶绿素含量、脯氨酸含量及三种保护酶活性等生理指标。结果表明:100 mmol/L和200 mmol/L处理的甜高粱幼苗质膜相对透性、脯氨酸和丙二醛含量升高;可溶性蛋白和叶绿素含量降低;保护酶系统中叶片超氧化物歧化酶(SOD)和过氧化氢酶(CAT)活性均升高,且在100 mmol/L浓度处理下达到最大,而过氧化物酶(POD)活性呈先升高再降低趋势。NaCl胁迫对甜高粱幼苗的一些生理特性产生一定影响。 |
| 英文摘要: |
| A study was made to investigate the effects of different concentrations of NaCl （100mmol／L and 200mmol／L ） on content of chlorophyll and other physiological characteristics in sweet sorghum seedlings．The results showed that under different concentrations of NaCl the content of proline（Pro） and malondialdehyde （MDA） increased continuously and the same as plasma membrane permeability of sweet sorghum seedlings． However the content of chlorophyll and soluble protein deceased gradually under NaCl treatment．The activities of superoxide dismutase （SOD） and catalase （CAT） in sweet sorghum leaves increased of which both reached the maximum under100mmol／L NaCl treatment．The activities of peroxidase （POD） was in a trend of increase first and then decrease．So the physiological characteristics of sweet sorghum seedlings were obviously affected by the two treatments of different NaCl concentration. |
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