TIAN Zhi-guo,WANG Fei.Study on Physiological Response of Seven Kinds of Garden Shrub Plants Under Natural Dehydration Stress[J].Northern Horticulture,2014,38(03):59-61.
几种园林灌木对自然失水胁迫的生理响应
- Title:
- Study on Physiological Response of Seven Kinds of Garden Shrub Plants Under Natural Dehydration Stress
- 文章编号:
- 1001-0009（2014）03-0059-03
- 分类号:
- Q 142
- 文献标志码:
- A
- 摘要:
- 以紫叶小檗、大叶黄杨、丁香、连翘、小叶女贞、月季、石榴7种园林中常见的灌木为试材，采用离体枝条水插法，研究了自然失水胁迫对其叶片相对含水量（RWC）、叶绿素含量（Chl a+b）、细胞膜透性(REC)、丙二醛(MDA)含量和游离脯氨酸(Pro)含量等生理指标的影响。结果表明：自然失水条件下，7种园林灌木的5个抗旱生理指标的变化趋势基本一致，随胁迫程度加强，叶片相对含水量和叶绿素含量降低，细胞膜透性增大，丙二醛含量和游离脯氨酸含量不同程度增加。
- Abstract:
- Taking 7 kinds of garden plants of Berberis thumbergii,Euonymus japonicus Thunb.,Synringa oblate,Forsythia suspense,Ligustrum quihoui,Rosa chinensis,Punica granatum as tset materials,with in vitro branch water plugging method, the effect of natural dehydration stress on RWC,Chl a+b content,REC,MDA content and Pro content of in vitro leaves in 15 d were studied.The results showed that in the natural dehydration stress，drought-resistance indexes from 7 kinds of garden plants were basically the same.With the extent of stress，the relative water content reduced，chlorophyll content decreased，the relative membrane permeability increased，MDA content increased，free proline content increased，but changes in magnitude between species significantly different.
参考文献/References:
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备注/Memo
第一作者简介：田治国（1978-），男，甘肃天水人，博士，讲师，现主要从事园林植物生理生态教学与科研工作。E-mail：zhiguo.tian@163.com.