| 干旱胁迫对大丽花生理生化指标的影响 |
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| 引用本文： | Fan SL,Yuan ZH,Feng LJ,Wang XH,Ding XM,Zhen HL. 干旱胁迫对大丽花生理生化指标的影响[J]. 应用生态学报, 2011, 22(3): 651-657 |
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| 作者姓名： | Fan SL Yuan ZH Feng LJ Wang XH Ding XM Zhen HL |
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| 作者单位： | 1. 山东省果树研究所,山东泰安,271000;山东农业大学林学院,山东泰安,271018
2. 山东省果树研究所,山东泰安,271000 |
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| 基金项目： | 山东省农业良种产业化开发项目 |
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| 摘 要： | 以大丽花品种'粉西施'扦插苗为试材,研究不同程度干旱胁迫及复水处理对大丽花品种'粉西施'叶片生理生化指标的影响.结果表明:随着干旱胁迫程度的增加和时间的延长,大丽花叶片的相对含水量、水势和叶绿素含量显著下降;叶片相对电导率、丙二醛含量显著增加,质膜遭到损害,大量离子外渗,严重胁迫下质膜的损害最严重,复水后无法恢复到对照水平;可溶性糖、脯氨酸含量显著增加,脯氨酸含量在中度和重度胁迫后期增加显著,说明其对干旱亏缺的敏感性较低;可溶性蛋白呈降-升-降的变化趋势;抗氧化酶SOD、POD和CAT活性先上升后下降,3种酶对干旱胁迫和活性氧的响应存在一定差异,表现为相互协调的作用.
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| 关 键 词： | 大丽花 干旱胁迫 抗旱性 生理变化 |
Effects of drought stress on physiological and biochemical parameters of Dahlia pinnata |
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| Fan Su-lu,Yuan Zhao-he,Feng Li-juan,Wang Xiao-hui,Ding Xue-mei,Zhen Hong-li. Effects of drought stress on physiological and biochemical parameters of Dahlia pinnata[J]. The journal of applied ecology, 2011, 22(3): 651-657 |
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| Authors: | Fan Su-lu Yuan Zhao-he Feng Li-juan Wang Xiao-hui Ding Xue-mei Zhen Hong-li |
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| Affiliation: | FAN Su-lu1,2,YUAN Zhao-he1,FENG Li-juan1,WANG Xiao-hui1,DING Xue-mei1,ZHEN Hong-li1,2(1Shandong Institute of Pomology,Tai'an 271000,Shandong,China,2College of Forestry,Shandong Agricultural University,Tai'an 271018,China) |
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| Abstract: | Taking Dahlia pinnata 'Fenxishi' as test material,this paper studied its leaf physiological and biochemical responses to different degrees of drought stress and re-watering.With the increasing extent and duration of drought stress,the leaf relative water content,water potential,and chlorophyll content of D.pinnata 'Fenxishi' decreased significantly,leaf relative electric conductivity and malondialdehyde(MDA) content had a significant increase,plasma membrane was damaged,and massive ions were leaked out.The ... |
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| Keywords: | Dahlia pinnata drought stress drought resistance physiological change. |
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