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《Chinese Journal of Applied Ecology》 2009-01
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Effects of grafting on cucumber leaf SOD and CAT gene expression and activities under low temperature stress

GAO Jun-jie1,2,QIN Ai-guo1,YU Xian-chang1 (1State Key Laboratory of Crop Biology,College of Horticulture Science and Engineering,Shandong Agricultural University,Tai'an 271018,Shandong,China; 2Tai'an Municipal Bureau of Agriculture,Tai'an 271000,Shandong,China).  
This paper studied the relative expression of Mn-SOD,Cu/Zn-SOD and CAT mRNAs and the changes of SOD,Mn-SOD,Cu/Zn-SOD and CAT activities in grafted and own-rooted cucumber leaves under low temperature stress,and their relations with the cold resistance of cucumber. For both grafted and own-rooted cucumber leaves,the relative expression of Mn-SOD and Cu/Zn-SOD mRNAs under low temperature stress was respectively accordance with the changes of Mn-SOD and Cu/Zn-SOD activities,while the expression of CAT mRNA was not accordance with the change of CAT activity. The relative expression of Mn-SOD and Cu/Zn-SOD mRNAs and the activities of SOD,Mn-SOD and Cu/Zn-SOD in grafted cucumber leaves were higher than those in own-rooted cucumber leaves,while the MDA content and electrolytic leakage were in adverse. The higher SOD activity regulated by the higher SOD mRNAs expression in grafted cucumber leaves might be the key factor of grafted cucumber having a higher cold resistance to low temperature stress than own-rooted cucumber. The relative expression of CAT mRNA was slightly higher in functional leaves but lower in young leaves of grafted cucumber,while less difference was observed in CAT activity,comparing with own-rooted cucumber,which illustrated that low temperature stress had lesser effects on the relative expression of CAT mRNA and the activity of CAT in grafted cucumber leaves.
【Fund】: 国家自然科学基金项目(30571271);; 山东省自然科学基金资助项目(Y2005D05)
【CateGory Index】: S642.2
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1 WEI Yu-xiang1,2,LI Yong-hong1,GU Mao1,LIU Xiao-hui2(1 Applied Chemistry and Biotechnology College,Shenzhen Polytechnic,Shenzhen,Guangdong 518055,China;2 Department of Landscape,Northeast Agricultural University,Haerbin 150030,China);Relationship between the Tolerance to High Temperature Stress and Superoxide Dismutases in Celosia cristata[J];Acta Botanica Boreali-Occidentalia Sinica;2008-10
2 RUAN Hai-Hua#, SHEN Wen-Biao #, , LIU Kai-Li, XU Lang-Lai(College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China);Effects of Exogenous NO Donor on Glutathione-dependent Antioxidative System in Wheat Seedling Leaf under Salt Stress[J];Acta Agronomica Sinica;2005-09
3 WAN Yong-ji1,ZHENG Wen-jiao1,FANG Yu1,WANG Zheng-min1,2,QIU Jin2(1.School of Life Sciences,Xiamen University,Xiamen 361005,China; 2.Sanming College,Sanming 365004,China);Effects of Cr(Ⅲ) Stress on Activities and Isozymes of SOD and POD of Kandelia candel Mangrove Seedlings[J];Journal of Xiamen University(Natural Science);2008-04
4 PAN Zhe-chao1,CHEN Jian-bing1,FAN Jing-hua1,ZHOU Hui-ping1,QIU Shi-gang2,YE Yi1,GUO Zhi-hua1(1.The Key Laboratory for Agriculture Biodiversity for Diseases and Pest Management of China Education Ministry,Yunnan Agricultural University,Kunming 650201,China;2.Agr-technology Extension Center of Jinggu County,Pu′er 666400,China);Activities of Defense-related Enzymes Induced by Grude Toxin from Magnaporthe grisea[J];Journal of Yunnan Agricultural University;2008-02
5 LUO Ya, TANG Hao-ru, and ZHANG Yong(Forestry and Horticultural College, Sichuan Agricultural University,Ya'an, Sichuan 625014, China);Effect of Low Temperature Stress on Activities of SOD and Enzymes of Ascorbate-Glutathione Cycle[J];Acta Horticulturae Sinica;2007-06
6 ZHOU Xiao-hui, Joseph N. Wolukau, LI Ying, CHEN Jin-feng(State Key Laboratory of Plant Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing,Jiangsu, 210095, China);Relationships between activity changes of superoxide dismutases,catalase, peroxidase and resistance to gummy stem blight in melon[J];China Cucurbits and Vegetables;2007-02
【Secondary References】
Chinese Journal Full-text Database 1 Hits
1 SUI Jing1,YANG Hong-qiang1,2,ZHANG Xin-rong1,JIANG Qian-qian1,RAN Kun1,SUN Xiao-li1,LI Qiang1(1College of Horticulture Science and Engineering,Taian 271018,Shandong,China; 2State Key Laboratory of Crop Biology,Taian 271018,Shandong,China);Nitric oxide production in Malus hupehensis roots under waterlogging and the effects of exogenous NaNO_3 on this production[J];Chinese Journal of Applied Ecology;2010-06
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