LI Jun,KONG Xiang-sheng,LI Jin-hang,et al.Effect of Gradual Drought Stress on Physiological Indexes of Paeonia suffruticosa Andr.[J].Northern Horticulture,2014,38(16):50-52,53.
逐渐干旱对牡丹生理指标的影响
- Title:
- Effect of Gradual Drought Stress on Physiological Indexes of Paeonia suffruticosa Andr.
- 文章编号:
- 1001-0009(2014)16-0050-04
- 分类号:
- S685.11
- 文献标志码:
- A
- 摘要:
- 以“洛阳红”和“乌龙捧盛”牡丹盆栽苗为试材，研究了逐渐干旱及复水过程中牡丹叶片中渗透调节物质及MDA含量的变化。结果表明：随着水分胁迫程度的增加，2种牡丹的可溶性蛋白质含量呈先升高后降低的趋势；2种牡丹的可溶性糖含量、脯氨酸含量和MDA含量均呈逐渐升高的趋势。相比于重度干旱胁迫，复水后2种牡丹的渗透调节物质含量均有所降低，除“乌龙捧盛”可溶性蛋白质含量差异不显著外，其它指标差异均达显著水平；而相对对照，复水后2种牡丹的渗透调节物质含量升高，但差异均不显著。2种牡丹的MDA含量在复水后比重度干旱胁迫时有所降低，均达差异显著水平；而与对照进行比较，差异不显著。
- Abstract:
- The potted Paeonia suffruticosa Andr.cv.‘Luoyanghong’ and ‘Wulongpengsheng’ were used as material,the changes of osmotic adjustment substances content and malondialdehyde content in the Paeonia suffruticosa Andr.leaves in the process of drought stress and re-watering were studied.The results indicated that with the drought stress increasing,the content of soluble protein of the two kinds of Paeonia suffruticosa Andr.increased firstly,then decreased；the content of soluble sugar,proline and malondialdehyde showed an increasing trend.Compared with the severe drought,osmotic adjustment substances content of two kinds of Paeonia suffruticosa Andr.all dropped,the differences of the other indexes were all significant except soluble protein of ‘Wulongpengsheng’；however compared with the control,ontent of osmotic adjustment substances rised,but all the differences were indistinctive.Malondialdehyde content of two kinds of Paeonia suffruticosa Andr.decreased to a certain degree,and the differences were both significant；however the differenes were indistinctive compared with the control
参考文献/References:
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备注/Memo
第一作者简介：李军（1987-），男，河南信阳人，硕士，研究方向为植物学。E-mail：LEEJUN19870824@163.com.