[1]熊冬兰,余萧,徐胜,等.臭氧胁迫下外源脱落酸对矮牵牛的影响[J].北方园艺,2018,42(04):96-102.[doi:10.11937/bfyy.20172409]
　XIONG Donglan,YU Xiao,XU Sheng,et al.Effects of Exogenous ABA on Petunia hybrid Under Ozone Stress[J].Northern Horticulture,2018,42(04):96-102.[doi:10.11937/bfyy.20172409]
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臭氧胁迫下外源脱落酸对矮牵牛的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第42卷 期数: 2018年04 页码: 96-102 栏目: 出版日期: 2018-02-28
Title:
Effects of Exogenous ABA on Petunia hybrid Under Ozone Stress
作者:
熊冬兰1; 2; 余萧2; 徐胜1; 3; 邓莉兰2; 何兴元1; 陈玮1
1.中国科学院 沈阳应用生态研究所，辽宁 沈阳 110016;2.西南林业大学 园林学院，云南 昆明 650224；3.中国科学院 森林生态与管理重点实验室，辽宁 沈阳 110016
Author(s):
XIONG Donglan1; 2; YU Xiao2; XU Sheng1; 3; DENG Lilan2; HE Xingyuan1; CHEN Wei1
1.Shenyang Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang,Liaoning 110016；2.Faculty of Landscape Architecture,Southwest Forestry University,Kunming,Yunnan 650224；3.Key Laboratory of Forest Ecology and Management,Chinese Academy of Sciences,Shenyang,Liaoning 110016
关键词:
脱落酸; 臭氧; 抗氧化酶
Keywords:
ABA; ozone; antioxidant enzyme
DOI:
10.11937/bfyy.20172409
文献标志码:
A
摘要:
臭氧作为大气中主要的污染气体之一，对植物的毒害作用已引起人们的广泛关注。脱落酸（ABA）作为一种渗透调节物质，其浓度变化可以调节和改善植物对逆境的适应能力。该试验以观赏型矮牵牛为试材，通过开顶箱（OTCs）模拟熏蒸，研究高浓度O3（100 nmol?mol-1）下叶面喷施5、30 μmol?L-1ABA对矮牵牛抗性生理指标的变化规律。结果表明：在臭氧胁迫下矮牵牛叶片出现失水皱缩、水渍斑块症状，随着喷施ABA浓度提高，以上症状减轻；光合色素含量显著升高，喷施ABA的处理光合色素含量与对照值接近；喷施 5 μmol?L-1和30 μmol?L-1ABA处理后，较喷施蒸馏水的处理，矮牵牛叶片MDA含量显著下降27.78%~55.22%，POD活性提高11.53%～47.72%，SOD活性提高33.94%,CAT活性提高125.45%～525.00%；可溶性蛋白质含量显著下降22.95%~23.02%。以上结果说明，ABA有效缓解了臭氧对矮牵牛的伤害，但矮牵牛的伤害程度随着高浓度臭氧熏蒸时间的增加而增加，且不同的品种表现出一定的差异。
Abstract:
As one of the main polluting gases in the atmosphere,ozone has attracted much attention.Abscisic acid (ABA),aosmoregulation substance,can regulate and improve the adaptability of plants to stress.In this study,Petunia hybrida was taken as materials,through the open top chamber (OTCs) simulation research in high concentration O3 (100 nmol?mol-1) fumigation,variation of foliar application of (5,30 μmol?L-1)ABA on resistance physiology of Petunia hybrida.The results showed that under ozone stress,the leaves of P.hybrida appeared water loss,shrinkage and water patch symptoms,and the symptoms decreased with the increase of spraying ABA concentration The content of photosynthetic pigment increased significantly,and the content of light and pigment treated with ABA was close to the control value.After spraying 5 μmol?L-1 and 30 μmol?L-1ABA,compared with the treatment with distilled water,the content of MDA in P.hybrida leaves decreased significantly (27.78%-55.22%),the activity of POD was increased by 11.53%-47.72%,the activity of SOD increased by 33.94%,the activity of CAT increased by 125.45%-525.00%,the soluble protein content decreased by 22.95%-23.02%,The above results showed that ABA effectively alleviated the damage of ozone to P.hybrida,but the injury degree increased with the increase of high concentration ozone fumigation time,and different varieties showed some differences.

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备注/Memo

第一作者简介：熊冬兰（1990-），女，硕士，研究方向为园林植物与观赏园艺。E-mail：646808094@qq.com.

责任作者：徐胜（1974-），男，博士，副研究员，研究方向为植物逆境生理生态学。E-mail：shengxu703@126.com.
基金项目：国家自然科学基金面上资助项目(41675153,31270518,31170573)；中科院重点部署资助项目(KFZD-SW-302-01)；东北地区植物全覆盖保护计划资助项目(KFJ-1W-NO1-17)。
收稿日期：2017-08-03

更新日期/Last Update: 2018-02-24