WANG Xiao-ping,WU Xiang-hua,MAO Shan-guo.Effect of NaCl Stress on Root Activity，Chlorophyll Content and Resistance Physiology of Phaseolus vulgaris[J].Northern Horticulture,2013,37(10):32-34.
盐胁迫对九粒白根系活力及叶绿素含量与抗性生理的影响
- Title:
- Effect of NaCl Stress on Root Activity，Chlorophyll Content and Resistance Physiology of Phaseolus vulgaris
- 文章编号:
- 1001-0009(2013)10-0032-03
- 分类号:
- S 643.1
- 文献标志码:
- A
- 摘要:
- 以“超级九粒白”的实生幼苗为试材，采用砂培法研究了15、30、60、90、150和200 mmol/L的NaCl胁迫下，植株幼苗的根系活力、叶绿素含量以及抗性生理(脯氨酸、丙二醛(MDA)、超氧化物歧化酶(SOD)、过氧化物酶(POD))的变化规律。结果表明：随着Na+胁迫浓度的升高，根系活力、SOD、POD的活性呈现先升后降的趋势，分别于30、150、90 mmol/L时达到最大值，是对照的112%、198%和219%。叶绿素a、b含量随Na+胁迫浓度的升高呈下降趋势，而MDA、脯氨酸含量则呈增加的趋势。
- Abstract:
- With seedlings of Phaseolus vulgaris as material，sand culture were adopted，root activity，chlorophyll content，resistance physiology rule (proline，MDA，SOD，POD) were tested under 15，30，60，90，150，200 mmol/L NaCl stress.The results showed that root activity，SOD activity and POD activity showed increasing first and then decreasing trend with Na+ stress concentration increased.The maximum value was reached under 30，150，90 mmol/L NaCl stress,112%，198% and 219% than the control，content of chlorophyll a，b decreased with the stress of Na+concentration increased，but content of MDA and proline increased.
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备注/Memo
第一作者简介：王小平(1969-)，男，江苏南京人，硕士，副教授，现主要从事植物学及植物生理学的教学与科研工作。E-mail：wangxpb@163.com.
基金项目：南京市重点建设学科资助项目。
收稿日期：2013-01-22