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《Acta Botanica Boreali-occidentalia Sinica》 2005-05
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Effect of NaCl Stress on Membrane Lipid Peroxidation and Protective Enzyme Activities in the Seedlings of Fig and Chinese Flowering Crabapple

HU Xue-jian~1,SUN Ming-gao~(1*),XIA Yang~2,ZHANG Jin-feng~1,LI Guo-lei~1,CAO Yong-fu~3(1 College of Forestry,Shandong Agricultural University,Tai'an,Shandong 271018,China;2 Shandong Academy of Forestry Sciences,Ji'nan 250001,China;3 Linyi Forestry Sciences,Research Institute,Linyi,Shandong 250001,China)  
Treated with NaCl at different concentrations,the seedlings of fig and Chinese flowering crabapple showed significant differences in NaCl tolerance.The seedlings of fig had a lower NaCl tolerance than those of Chinese flowering crabapple and thus the wilting symptoms of the former appeared earlier than those of the latter did.While the concentration in NaCl treatments wre changed with time,the seedlings of fig and Chinese flowering crabapple showed a dynamically increasing tendency in NaCl tolerance.Because of their tolerance differences to NaCl stress,the seedlings of fig showed wilting symptoms earlier than the seedlings of Chinese flowering crabapple.The MDA content in the seedling of Chinese flowering crabapple presented an increasing tendency with intensified NaCl stress,while the MDA content in the seedling of fig showed a declining tendency earlier but remained at a higher level than that of the control.It appeared that the RC positively correlated with the MDA content;the activity of SOD generally showed a declining tendency and the activity of POD tended to present an insignificantly increasing tendency.
【Fund】: 国家科技攻关计划重大专项"中国森林生态网络体系东营试验点的研究"专题
【CateGory Index】: Q945.78
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【References】
Chinese Journal Full-text Database 10 Hits
1 Fang Zhihong et al.(College of Animal Science and Technolgy,Shanxi Agricultural University,Taigu 030801,China);Effects of Na_2SO_4 Stress on Chlorophyll Contents,Betacyanin Contents and O_2~- Production Rate of Artemisia Anethifolia[J];Anhui Agricultural Science Bulletin;2010-09
2 ZHANG Xia et al (Biotechnology Center of Shandong Academy of Sciences,Jinan,Shandong 250014);Physiological Responses of Mentha piperita to NaCl Stress[J];Journal of Anhui Agricultural Sciences;2009-13
3 SHI Dong-yan (Department of Life Science,Heze University,Heze,Shandong 274015);Effect of Water Stress on Physiological Indicators and Activity of Defense Enzymes of Amaranthus viridis[J];Journal of Anhui Agricultural Sciences;2009-25
4 QIN Hong-yan,SHEN Yu-jie,LI Chang-yu,YANG Yi-ming,FAN Shu-tian,WANG Xin-wei,AI Jun(Institute of Wild Economic Animal and Plant of Science,Chinese Academy of Agricultural Science,Zuojia,Jilin 132109);Response of Leaf Lipid Peroxidation and Protective Enzyme Activity of Different Grape Varieties to Salt Stress[J];Northern Horticulture;2010-20
5 MA Guang,GUO Ji-ping,WEI Shu-zhen,QI Shan-hou,GAO Xiao-song(Department of Life Sciences,Hengshui College,Hengshui 053000,Hebei,China);Comparison on Physiological Characteristics of Glycine soja and Glycine max under Drought Stress[J];Soybean Science;2011-06
6 LIANG Chao~1,WANG Chao~1,YANG Xiu-feng~2,ZHANG Xiu-tian~2,WANG Wei~(1*)(1 College of Life Sciene,Shandong Agricultural Univesity,Tai'an,Shandong 271018,China;2 Dezhou Academy of Agricultural Sciences,Dezhou,Shandong 253015,China);Salt-tolerant Physiological Characters of Wheat Variety 'Dekang 961'[J];Acta Botanica Boreali-Occidentalia Sinica;2006-10
7 XU Ling-fei,ZHAO Hong-bo,MA Feng-wang,LIANG Dong,WAN En-mei(College of Horticulture,Northwest A & F University,Yangling,Shaanxi 712100,China);Crude Toxin Isolated from Verturia noshicola on Physiological Charateristics of in vitro Leaves of Susceptible and Resistant Pear[J];Acta Botanica Boreali-Occidentalia Sinica;2007-06
8 JIANG Xue-fei,QIAO Fei,ZOU Zhi-rong*(College of Horticulture,Northwest A & F University,Yangling,Shaanxi 712100,China);Effect of Brackish Water Irrigation on Membrane Lipid Peroxidation and Protective Enzyme Activities in Melon Leaves of Various Developmental Stages[J];Acta Botanica Boreali-Occidentalia Sinica;2007-06
9 ZHAO Juan1,2,ZHANG Ji-shu1,WANG Yu-guo2,FENG Wen-xin2,XU Wen-xiu2(1 College of Life Science,Northwest A&F University,Yangling,Shaanxi 712100,China;2 Agricultural College,Shanxi Agricultural University,Taigu,Shanxi 030801,China);Effects of Infection of Epiphyte Caused Fruit Rot on Defense Mechanism in Pear Fruit Callus[J];Acta Botanica Boreali-Occidentalia Sinica;2010-11
10 LIANG Xin-hua,SHI Da-gang(Life school of Ningxia University,Yinchuan,Ningxia 750021,China);Effect of drought stress on the content of malondialdehyole and activity of cell defense enzymes in Glycyrrhiza glabra seedlings roots[J];Agricultural Research in the Arid Areas;2006-03
【Citations】
Chinese Journal Full-text Database 6 Hits
1 Li Fuguang;Li FengLian;Li Xiulan(Cotton Research Institute, CAAS, Anyang,455112);Effects of Salt Stress on the Activity of Protective Enzymes in Cotton Seedling[J];JOURNAL OF AGRICULTURAL UNIVERSITY OF HEBEI;1994-03
2 Pan Tingguo; Ke Yuqin; Wang Yuanzheng; Wu Diming(Department of Fundamental Subjects, FAU, Fuzhou 350002);Membrane Lipid Peroxidation of the Leaves and Protective Enzyme Activity of Sugarcane Under Salt Stress[J];JOURNAL OF FUJIAN AGRICULTURAL UNIVERSITY;1995-02
3 Sun Guorong 1) Peng Yongzhen 2) (School of Municipal and Environmental Engineering,Harbin Institute of Technology\ Harbin150006) Yan Xiufeng 3) \ Jiang Lifen 5) (Open Research Laboratory of Forest Plant Ecology,Northeast Forestry University\ Harbin150040) Zhang Rui 4) (Department of Biology,Harbin Normal University\ Harbin150080);EFFECT OF DROUGHT STRESS ON ACTIVITY OF CELL DEFENSE ENZYMES AND LIPID PEROXIDATION IN LEAVES OF BETULA PLATYPHYLLA SEEDLINGS[J];Scientia Silvae Sinicae;2003-01
4 Chen Lisong Liu Xinghui (Department of Horticulture,Fujian Agricultural University Fuzhou 350002);EFFECTS OF WATER STRESE ON LEAF MEMBRANE LIPID PEROXIDATION AND ENDOGENOUS PROTECTIVE SYSTEMS IN LONGAN YOUNG SEEDLINGS[J];JOURNAL OF WUHAN BOTANICAL RESEARCH;1999-02
5 Wang Liangju 1,Liu Youliang 2,Ma Kai 1,and Li Guangping 1 ( 1Department of Horticulture,Nanjing Agricultural University,Nanjing 210095; 2Department of Agronomy,Nanjing Agricultural University,Nanjing 210095);The Changes of Antioxidant Enzyme Activities of Fig( Ficus carica L.) Cell Lines with Different Salt Tolerances[J];ACTA HORTICULTURAE SINICA;1999-06
6 CHEN Shao-Yu(Fujian Agricultural College, Fuzhou 350002);Injury of Membrane Lipid Peroxidation to Plant Cell[J];Plant Physiology Communications;1991-02
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 DING Xiao-yi,JIANG Hong-ming,CHEN Yong-na,LI Lin-zhi,YAN Mei-ling,LIU Zhao-ye(Yantai Academy of Agricultural Sciences,Yantai 265500,China);Research on Wheat Breeding Aims for Food Safety in China[J];Shandong Agricultural Sciences;2008-03
2 GAO Fu-yuan1,ZHANG Ji-li2,LIU Zhen-ping3,GUO Fang-fang3(1.Shanxi Forestry Vocational and Technical College,Taiyuan 030009,China;2.Daqing Vocational College,Daqing 163255,China;3.Shanxi Agricultural University,Taigu 030801,China);Effects of Continuous Low-temperature Stress on Electrical Conductivity and MDA Content of Garden Trees[J];Shandong Agricultural Sciences;2010-02
3 ZHAI Nai-jia,LIU Wei-xia,Qiao Jian,HUANG Zhi-yin*(Zibo Academy of Agricultural Sciences,Zibo 255033,China);Effect of Seed Soaking with Different Concentrations of Betain on Germination and Seedling Physiological Properties of Cotton under Salt Stress[J];Shandong Agricultural Sciences;2012-05
4 Peng Jinguang~1 Sun Yuhong~1 Shi Ruihong~2 Xie Guosheng~2 (Institute of Agriculture of Wuhan City1,430062;College of Plant Science and Technology,Huazhong Agricultural University2,Wuhan 430070);Effects of 10℃ Low Temperature on Physiological Index of Hardness in Watermelon Seedlings[J];Anhui Agricultural Science Bulletin;2006-10
5 Guo Yuhua(Weihai Vocational College,Shangdong Weihai,264210);Effect of Seasonal Low Temperature on Photosynthesis and Protective Enzyme Activities of Three Fruit Species[J];Anhui Agricultural Science Bulletin;2007-13
6 Nie Fan et al (Horticultural Institute,Anhui Academy of Agricultural Sciences,Hefei 230031);Analysis on morphological specialty and nutrients of B.incomspicuum Maxim[J];Journal of Anhui Agricultural Sciences;2001-01
7 Zhang Xiaoling et al (AAAS, Hefei,Anhui 230031);The Application Effect of Plant Growth Regulators on the Growth and Development of Rose-cutting[J];Journal of Anhui Agricultural Sciences;2004-01
8 Ma Wenyue (Department of Agronmy, Guizhou University, Guiyang,Guizhou 550025);Studies on Chilling Injury and Cold Hardiness of Plants[J];Journal of Anhui Agricultural Sciences;2004-05
9 WANG Yao-fu et al (National Research Centre for Tobacco Cultivation, Physiology and Biochemistry, Henan Agricultural University, Zhengzhou,Henan 450002);Research Advance of Drought-Resistant Physiology and Biochemistry of Tobacco[J];Journal of Anhui Agricultural Sciences;2005-03
10 MA Yuan- song et al (Biology Department, Shangqiu Teachers' College, Shangqiu, Henan 476000);Research on the Physiological-Biochemical Indexes of Different Soybean Varieties during Seedling Period under the Drought Stress[J];Journal of Anhui Agricultural Sciences;2005-06
China Proceedings of conference Full-text Database 10 Hits
1 Zejin Wang1,3,Liang Hu2,Jinhua Tong3,Chun Chen1,3 (1 .College of Food Science,Fujian Agricultural and Forestry University,2.Quanzhou Huaqiao Zhixiao,3.Experimentation Station for Technology Development on Agricultural products,Fuzhou,Fujian,350002);Study on Effect of Storage Temperature and Ripening Degree on Chilling Injury of Papaya[A];Chinese association of Refrigeration[C];2011
2 DU Jian~1 FENG Hao~1 WU Pu-te~(1*) ZHANG Yue-li~1 HUANG Wen-min~2 CHEN Jun~3 GAO Chao~3 WANG Bing-rong~2 ZHU Shou-yong~1 CAO Chao~1 (1.Northwest A & F University,Yangling 712100;2.Shaanxi province San Yuan counhy Shaanxi San Yan 713800);Effects of the coupling of physiological drought resistance and water-saving farming practices on cotton yield and quality[A];[C];2007
3 Chen Lisong, and Liu Xinghui (Department of Horticulture, Fujian Agricultural University, Fuzhou 350002);Research Progress on Oxidative Stress and Antioxidation Induced by Stress in Horticultural Crop[A];[C];1998
4 CaoHui, Lan Yanping, Liu Huichao, Wang Xiaowei,Wang Zhongying (Dept. of Hort.. ShanXi Agri.Univ..TaiGu030801);Effect of Water Stress in Soil on Active Oxygen Metabolism of Spur-Apple Young Leaves[A];[C];2000
5 Wang Zehuai and He Haiying ( College of Horticulture, South China Agric. Univ., Guangzhou 510642);Effects of Potassium Chlorate on Flower Induction,Nitrogen Metabolism and Active Oxygen Metabolism in Longan[A];[C];2002
6 ;The Effect of Waterlogging to Physiology and Biochemistry of Actinadia Deliciosa[A];[C];2008
7 ;Boost Effects of 5-Aminolevulinic Acid on Cucumber Growth under Salt Stress[A];[C];2008
8 LU Chengqun HUANG Baoling (Forestry College, Guangxi University, Nanning 530001,China);The High Boron Level Treament Enhace Acclimation of Eucalyptus grandis x E.urophylla Seedlings to above Zero Low Temperatures[A];[C];2003
9 Huang Wei Lin Qi-feng Li Guan-yi (Institute of Biotechnology, Hainan University, Hainan Provincial Key Lab of Biotechnology for Salt-tolerance Crops, Haikou 570228);Research of Salt Intimidation on Some Physiological Characteristics of Kandelia candel[A];[C];2004
10 ZHAO Jun-sheng,WANG Jia-bao,WANG Liu-ming~*,GAO Wei-ming,CHEN Ying,WANG Xiu-li, YANG Jing (Cotton Research Center,Shandong Academy of Agricultural Sciences,Jinan,Shandong 250100, China);Comparative Study on Development Characters and Physiological Index of Different Cotton Varieties[A];[C];2009
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 LIANG Chao~1,ZHANG Xue-Ying~1,YANG Xiu-Feng~2,ZHANG Xiu-Tian~2,WANG Wei~(1*)(1.College of Life Science,Shandong Agricultural University,Taian 271018,China;2.Dezhou Research Institut of Agricultural Sciences,Dezhou 253015,China);Salt Tolerance Mechanism of the New Wheat Cultivar DK961 with Salt Tolerance and High Yield[J];Shandong Agricultural Sciences;2007-01
2 CHEN Yi-yin,CHEN Yu-zhen(College of Biological Sciences and Biotechnology,Beijing 100083,China);Cold Acclimation-Induced Changes in Freezing Resistance,the Contents of Soluble Protein and Proline and Antioxidant Enzyme Activities in Populus euphratica Calli[J];Shandong Agricultural Sciences;2007-03
3  Wang Yuefu,Yu Zhenwen & Pan Qingmin (Shandong Agricultural University,Taian 271018);Effect of Soil Water Stress on Water Use Efficiency of Different Drought-tolerant Wheat Varieties[J];SHANDONG AGRICULTURAL SCIENCES;1998-03
4 Chi Chunyu1 Lian Yongquan2 Li Wenjun2 Ding Guohua1(1 Life Science Department,Harbin Normal University,Harbin,150301;2Heilongjiang Vocational College of Animal Husbandry and Veterinary Science,Shuangcheng,150111);Chilling Resistance Change of Three Turfgrass Varieties under Low Temperature Stress[J];Anhui Agricultural Science Bulletin;2007-07
5 Zhang Changai et al (Taian Agriculture Technological Institute,Taian,Shandong 271000);The Physic-chemical Condition and Microbe Condition of Soil in Plastic Shed[J];Journal of Anhui Agricultural Sciences;2002-02
6 Zhang Li et al (Beijing Vegetable Research Center, Beijing 100089);Studies on Material Metabolism of Male Sterility in Radish[J];Journal of Anhui Agricultural Sciences;2002-03
7 Quan Xianqian (Department of Biology, Linyi Normal University, Linyi, S handong 276005);Enzymatic Mechanism of Scavenging Reactive Oxygen Species of Euh alophytes[J];Journal of Anhui Agricultural Sciences;2003-02
8 Quan Xianqing (Department of Biology, Linyi Normal University, Linyi,Shandong 276005);No-enzymatic Mechanism of Scavenging Reactive Oxygen Species of Euhalophytes[J];Journal of Anhui Agricultural Sciences;2003-03
9 SHAN Chang-juan (Henan Institute of Science and Technology, Xinxiang, Henan 453003 );Study on Water Physiology of Locust Seedling under Different Conditions of Drought Stress[J];Journal of Anhui Agricultural Sciences;2005-10
10 LIU Shi-peng et al (College ofLife Sciences, Yanan University, Yanan,Shaanxi 716000);Effect of Water-stress on the Activity of Antioxidant Enzyme and the Content of Nucleic Acid of Jujube Seedling[J];Journal of Anhui Agricultural Sciences;2006-08
【Secondary References】
Chinese Journal Full-text Database 10 Hits
1 XIAO Bei-lei1,2,LI De-quan1,LI De-quan1,HU Xiao-li1(1.State Key Laboratory of Crop Biology,College of Life Science,Shandong Agricultural University,Taian 271018,China; 2.Agronomy Department of Dezhou College,Dezhou 253023,China);Effects of Salt Stress on Membrane Lipid Peroxidation and Endogenous Protective Systems in the Leaf of Transgenic Tobacco with ZmPP2C2 and Wild Tobacco[J];Shandong Agricultural Sciences;2008-01
2 BAI Jian-fen,PEI Yu-he,ZHAO Qiu-xia,SONG Xi-yun(Qingdao Agricultural University/ Qindao Key Laboratory of Germplasm Innovation and Application of Major Crops,Qingdao 266109,China);Variation of Some Physiological and Biochemical Indexes in Maize Seedlings under Drought Stress[J];Shandong Agricultural Sciences;2012-03
3 XIAO Bei-lei et al(Agronomy Department,Dezhou University,Dezhou,Shandong 253023);Effects of Salt Stress on Some Physiological and Biochemical Indices of Transgenic Tobacco Harboring ZmPP2C2 and Wild Tobacco[J];Journal of Anhui Agricultural Sciences;2010-04
4 CHENG Huan-xin et al (College of Life Sciences,Research Center of Biotechnology,Hebei University ,Baoding ,Hebei 071002);Effect of Drought Stress on Total Flavonoids Content in Glycyrrhiza inflata Callus[J];Journal of Anhui Agricultural Sciences;2010-11
5 LIU Rong-mei et al (College of Life Sciences,Northeast Agricultural University,Harbin,Heilongjiang 150030);Effect of Low Temperature on Chloroplast Ultra-structure and Physiological Characteristics of Transferring CBF3 Gene Tobacco Seedling[J];Journal of Anhui Agricultural Sciences;2010-18
6 YUAN Yu et al(Agricultural College,Shihezi University,Shihezi,Xinjiang 832003);Identification Tolerance of Red Globe and Centenial Seedless Grape to the Sodium Carbonate[J];Journal of Anhui Agricultural Sciences;2011-16
7 CHEN Hai-sheng(Institute of Ecological Science and Technology,Henan University,Kaifeng,Henan 475004);Effects of Exogenous IAA on Physiological Activities and Seed Setting Rate in Grain of Intersubspecific Hybrid Rice "Liangyoupeijiu"[J];Journal of Anhui Agricultural Sciences;2012-01
8 ZHAO Hai-chao et al(College of Agriculture and Forestry,Hebei North University,Zhangjiakou,Hebei 075131);Effects of Different Phosphorus Amounts on Drought-resistance of Potato in Seedling Stage[J];Journal of Anhui Agricultural Sciences;2012-06
9 YUAN Zhen-yan et al(College of Life Science and Technology,Xinjiang University,Urumqi,Xinjiang 830046);Research Status and Progress on Alhagi sparsifolia[J];Journal of Anhui Agricultural Sciences;2012-18
10 ZHANG Xia et al(College of Life Sciences,Yantai University,Yantai,Shandong 264005);Effects of NaCl Stress on the Scavenging Activity of Limonium sinense Kuntze to Reactive Oxygen Species[J];Journal of Anhui Agricultural Sciences;2012-21
China Proceedings of conference Full-text Database 2 Hits
1 HU Xiao-li~1 LI Yan-hui~1 CHEN Dong-liang~2 FENG Chen-jing~1 YANG Jian-min~1 (1 College of Landscape Architecture and Tourism,Agriculture University of Hebei,Baoding 071000; 2 The Research Institute of Subtropical Forestry,Chinese Academy of Forestry,Fuyang 311400);The Comparative Study on Salt Resistance of Three Colored-leaf Species in Prunus[A];[C];2009
2 ZHANG Shuning XU Weiyu LV Wei WANG Jianjun LIU Huiji (Ministry of Agriculture Key Laboratory of Southern Vegetable Crop Genetic Improvement College of Horticulture,Nanjing Agricultural University,Nanjing 210095,China);Induction of Autotetraploid Raphanus Sativus L.WithHigh-quality and Heat-tolerance[A];[C];2012
【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
1 Xu Donghe Li Dongyan Chen Yuhe(Hebei Agrotechnical Teachers' College, Changli);Effect of Salt Stress on the Cell Membrane Permeability, MDA Content and the POD Activity in Soybean[J];Acta Agriculturae Boreali—Sinica;1993-S1
2 Wang Zongli, Liu Xiaozhong, Li Jiankun and Wang Zhixia (Institute of Agrobiological Genetics and Physiology, Jiangsu Academy of Agricultural sciences );Waterlogging Injury in Relation to Membrane Lipid Peroxidation and Protective Enzymes in Corn Leaves[J];Jiangsu Journal of Agricultural Sciences;1988-03
3 Li Changrun and Liu Youliang Department of Agronomy, Nanjing Agricultural University,Nanjing 210014;Studies on Salt Tolerance and Its Mechanism in Wheat[J];Jiangsu Journal of Agricultural Sciences;1993-01
4 Shen Fafu Yin Chengyi Shandong Agricultural University,Taian 271018;The Effect of Salt Stress on Superoxide Dismutase in Cotton Seeding Cotyledon[J];Cotton Science;1993-01
5 Mao Cailiang Liu Youliang (Department of Agronomy);THE DISTRIBUTION OF Na~+ K~+AND SALT CONTENT TOLERATED BY LEAF IN BARLEY SEEDLING UNDER SALT STRESS[J];Journal of Nanjing Agricultural University;1990-03
6 Li Changrun Liu Youliang (Dept of Agronomy,Nanjing Agric Univ,Nanjing 210014);STUDIES ON K~+,Na~+ SELECTIVITY DURING ION UPTAKE AND TRANSPORT AND SALT TOLERANCE OF LEAF CELLS OF WHEAT SEEDLINGS UNDER SALT STRESS CONDITIONS[J];Journal of Nanjing Agricultural University;1993-01
7 Wang Baoshan;Zhao Siqi Department of Biology, Shandong Normal University Department of Bhology, Northwest Teachers' College;EFFECT OF DROUGHT ON LIPID PEROXIDATION AND DEFENSIVE ENZYMES IN THE WHEAT SEEDLINGS[J];Journal of Shandong Normal University(Natural Science);1987-01
8 YAN Xiu Feng,LI Jing,ZU Yuan Gang (Open Research Laboratory of Forest Plant Ecology,Northeast Forestry University,Harbin 150040,China);Effect of drought stress on activity of cell defense enzymes and lipid peroxidation in korean pine seedlings[J];ACTA ECOLOGICA SINICA;1999-06
9 Chen Lisong Liu Xinghui (Department of Horticulture,Fujian Agricultural University Fuzhou 350002);EFFECTS OF WATER STRESE ON LEAF MEMBRANE LIPID PEROXIDATION AND ENDOGENOUS PROTECTIVE SYSTEMS IN LONGAN YOUNG SEEDLINGS[J];JOURNAL OF WUHAN BOTANICAL RESEARCH;1999-02
10 Zhao Huixian Wang Peihong Guo Aiguang(Plant Biochemistry Iab.,Northwestern Agricultural Univ., Yangling,Shaanxi 712100);EFFECT OF WATER STRESS ON PROTECTIVE ENZYME IN WHEAT SEEDLINGS AND THEIR RELATIONSHIP TO DROUGHT RESISTANCE[J];Acta Agriculturae Boreali-occidentalis Sinica;1992-01
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