| Na2CO3和NaHCO3胁迫下冰草的生长及生理响应 |
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| 引用本文： | 高文俊,徐静,谢开云,董宽虎.Na2CO3和NaHCO3胁迫下冰草的生长及生理响应[J].草业学报,2011,20(4):299-304. |
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| 作者姓名： | 高文俊 徐静 谢开云 董宽虎 |
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| 作者单位： | 山西农业大学动物科技学院,山西 太谷 030801 |
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| 基金项目： | “十一五”国家科技支撑计划课题;国家农业科技成果转化资金项目;山西省基础平台建设项目 |
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| 摘 要： | 在温室条件下用不同浓度的Na2CO3和NaHCO3 (0,30,60,90,120,150 mmol/L)对冰草进行胁迫,测定冰草的生长及生理指标。结果表明,在2种碱处理下随着胁迫浓度递增,冰草的丙二醛含量和可溶性糖含量增加,生物量、根冠比、叶绿素含量、脯氨酸含量都呈先增后降的变化趋势。低浓度的碱胁迫对冰草生长有一定的补偿生长作用,碱胁迫下脯氨酸先于可溶性糖而累积, Na2CO3对冰草的胁迫作用大于NaHCO3。
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| 关 键 词： | 冰草 Na2CO3 NaHCO3 生理响应 |
| 收稿时间： | 2010-07-16 |
Physiological responses of Agropyron cristatum under Na2CO3 and NaHCO3 stress |
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| GAO Wen-jun,XU Jing,XIE Kai-yun,DONG Kuan-hu.Physiological responses of Agropyron cristatum under Na2CO3 and NaHCO3 stress[J].Acta Prataculturae Sinica,2011,20(4):299-304. |
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| Authors: | GAO Wen-jun XU Jing XIE Kai-yun DONG Kuan-hu |
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| Institution: | College of Animal Science and Technology, Shanxi Agricultural University, Taigu 030801, China |
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| Abstract: | Seedlings of Agropyron cristatum were stressed with Na2CO3 and NaHCO3 (0, 30, 60, 90, 120, or 150 mmol/L) in the greenhouse. Eight indices (biomass, root-shoot ratio, malondialdehyde (MDA) content, chlorophyl content, soluble sugar content, proline content, SOD activity and POD activity) were determined. As the stress increased in treatments, the content of MDA and soluble sugar also increased whereas the biomass, root-shoot ratio, and chlorophyl content increased initially and then decreased. The results showed that low concentrations of alkaline stress on A. cristatum had some role in promoting growth. Proline accumulated before soluble sugar and Na2CO3 stress was greater than NaHCO3 stress. |
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