YUE Hua,ZHANG Wen-juan.Effect of Drought Stress Simulated by PEG-6000 on Physiological Characteristics of Scutellaria scordifolia F. Seedling[J].Northern Horticulture,2013,37(12):65-68.
PEG-6000模拟干旱胁迫对并头黄芩幼苗生理特性的影响
- Title:
- Effect of Drought Stress Simulated by PEG-6000 on Physiological Characteristics of Scutellaria scordifolia F. Seedling
- 文章编号:
- 1001-0009（2013）12-0065-04
- Keywords:
- seedling of Scutellaria scordifolia F.; PEG-6000; drought stress; physiological characteristics
- 分类号:
- S 601
- 文献标志码:
- A
- 摘要:
- 以并头黄芩幼苗为试材，研究了不同质量浓度（10％、20％、30％）聚乙二醇6000（PEG-6000）溶液对并头黄芩5个生理指标的影响，以评价其抗旱能力。结果表明：质量浓度为20％、30％的PEG-6000分别胁迫20 h后，并头黄芩失去观赏价值；叶片相对含水量和细胞膜透性与胁迫程度呈正相关，复水后30％PEG-6000处理下叶片含水量与细胞膜透性无法恢复正常水平；丙二醛含量随胁迫时间延长而积累，30％浓度PEG-6000在20 h达到峰值，质膜受损伤程度最大；胁迫12 h保护酶系统清除活性氧自由基抵抗干旱胁迫，超氧化物歧化酶（SOD）活性在12 h达到峰值后不断下降，30％降幅最大，复水后难以恢复；并头黄芩通过自身调节能够适应质量浓度20％、30％的PEG-6000胁迫12～16 h，有一定的抗旱能力。
- Abstract:
- Using seedling of Scutellaria scordifolia F. as materials,the effect of drought stress by different mass concentrations(10％,20％ and 30％) of PEG6000 on five physiological characteristics of Scutellaria scordifolia F.were studied,and its drought resitance was evaluated.The results showed that Scutellaria scordifolia lost ornamental value after 20 hours of stress by 20％and 30％PGE,respectively.Leaf relative water content and cell membrane permeability correlate with stress positively，that could not be restored to normal levers after again water.MDA content accumulated stress prolonging,that concentration of 30％PEG-6000reached the top at 20 hours.Membrance suffered huge damage.At 12 hours the protective enzyme system to scaveng oxygen free radicals resist drought stress.SOD activity reached its peak in the 12 hours than declining.30％of PEG-6000 had the largest decline,it was difficult to recover after rewatering.The results showed that Scutellaria scordifolia had a strong ability to resist drought stress,and it was able to adapt to 16～20 hours of stress by 20％and 30％PEG-6000through self-regulation.
参考文献/References:
[1]中国科学院中国植物志编辑委员会.中国植物志[M].14卷.北京:科学出版社,1980:232-233.
[2]岳桦,孙笑丛.PEG6000渗透胁迫对对开蕨生理特性影响[J].北方园艺,2011(1):91-94.
[3]郝建军,康宗利.植物生理学实验技术[M].北京:化学工业出版社,2006.
[4]刘祖祺.植物抗性生理学[M].北京:中国农业出版社,1994:84-195.
[5]李合生.植物生理生化实验原理和技术[M].北京:高等教育出版社,2000:134-137,167-168.
[6]刘学友.植物水分逆境生理[M].北京:农业出版社,1992.
[7]文建成,陈学宽,符菊芬,等.质膜透性与丙二醛(MDA)含量的变化评价甘蔗品种抗旱性初探[J].亚热带农业研究,1998,5(3):1-5.
[8]黄升谋.干旱对植物的伤害及植物的抗旱机制[J].安徽农业科学,2009,37(22):10370-10372.
[9]时忠杰,胡哲森,李荣生.水分胁迫与活性氧代谢[J].贵州大学学报,2002,21(2):140-145.
[10]潘秋红,赖杭桂,陈晓敏,等.Ca2+对水分胁迫条件下芒果叶片膜脂过氧化及膜保护系统的影响[J].热带作物学报,2000,21(2):30-36.
相似文献/References:
[1]岳桦,石喜梅.聚乙二醇模拟干旱胁迫对兔儿伞生理特性的影响[J].北方园艺,2013,37(11):56.
YUE Hua,SHI Xi-mei.Effects of Drought Stress Simulated by PEG-6000 on Physiological Characteristics of Syneilesis aconitifolia[J].Northern Horticulture,2013,37(12):56.
[2]张 灏,曹 慧.模拟干旱胁迫对八棱海棠根系生理生化指标的影响[J].北方园艺,2014,38(03):69.
ZHANG Hao,CAO Hui.Effect of Drought Stress on Physiological Characteristics of Root in Malus robusta Rehd.[J].Northern Horticulture,2014,38(12):69.
[3]王 彬,李长鼎,兰 剑,等.聚乙二醇-6000胁迫下十二个草地早熟禾品种萌发期抗旱性比较研究[J].北方园艺,2012,36(24):54.
WANG Bin,LI Chang-ding,LAN Jian,et al.Study on Drought Resistance at Germination Stage of 12 Varieties of Poa pratensis L.under PEG-6000 Stress[J].Northern Horticulture,2012,36(12):54.
[4]蒋 林,於艳萍,刘昆成,等.聚乙二醇-6000对山白兰苗木生理特性的影响[J].北方园艺,2012,36(24):77.
JIANG Lin,YU Yan-ping,LIU Kun-cheng,et al.Effect of PEG-6000 on Physiological Characteristics of Michelia alba Seedlings[J].Northern Horticulture,2012,36(12):77.
[5]谢长海,王培丹,刘艳玲,等.巨菌草对干旱胁迫的生理响应及相关性分析[J].北方园艺,2015,39(02):129.[doi:10.11937/bfyy.201502037]
XIE Chang-hai,WANG Pei-dan,LIU Yan-ling,et al.Correlation Analysis and Physiological Characteristics of Pennisetum sp.Under Drought Stress[J].Northern Horticulture,2015,39(12):129.[doi:10.11937/bfyy.201502037]
[6]高昆,王佳琪.干旱胁迫对锦灯笼种子萌发及幼苗生理特性的影响[J].北方园艺,2020,44(07):132.[doi:10.11937/bfyy.20192885]
GAO Kun,WANG Jiaqi.Effects of Drought Stress on the Seed Germination and Physiological Characteristics of the Seedling of Physalis alkengi L.[J].Northern Horticulture,2020,44(12):132.[doi:10.11937/bfyy.20192885]
备注/Memo
第一作者简介：岳桦（1962），女，硕士，教授，硕士生导师，研究方向为园林植物资源与应用。E-mail：yuehua0123@126.com.
收稿日期：2013-01-16