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《土壤圈(英文版)》 2009-02
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Effect of Seawater Stress on Physiological and Biochemical Responses of Five Jerusalem Artichoke Ecotypes

LONG Xiao-Hua,CHI Jin-He,LIU Ling,LI Qing and LIU Zhao-Pu2 College of Resources and Environmental Sciences,Nanjing Agricultural University,Nanjing 210095(China)  
Three treatments consisting of 0%,15%,and 30%seawater were investigated to analyse the ecotypic variabilities among five populations of Jerusalem artichoke(Helianthus tuberosus)regarding their responses to seawater stress under a hydroponic culture system.Analyses were done 2,4,and 6 days after treatments.The 15%and 30%seawater treatments reduced the growth rates of roots and shoots of H.tuberosus populations.The activities of superoxide dismutase, peroxidase,and catalase majored in the leaves were stimulated under the seawater stress.The electrolyte leakage and malondialdehyde contents of the leaves were also stimulated owing to seawater stress.The contents of proline and soluble- sugars in the leaves increased significantly with increasing seawater concentrations.The concentrations of Na+,K+,and Cl-in the aerial parts and roots increased with an increase in the seawater concentration throughout the experimental period.There were ecotypic differences among the five populations of H.tuberosus as evidenced by the analyses of the above items in both aerial parts and roots under seawater treatment.The magnitude of the ecotypic variance components indicated that a substantial proportion of the total variation for these physiological and biochemical responses were owing to ecotype,indicating the possibility of improvement through hybridization and selection.
【Fund】: Project Supported by the National Key Project of Scientific and Technical Supporting Programs Funded by Ministry of Science&Technology of China(Nos.2006BAD09A08-03-01 and 2006BAD09A04-05);; the National High Technology Research and Development Program(863 Program)of China(No.2007AA091702);; the Opening Program of Jiangsu Provincial Key Laboratory of Coastal Wetland Bio-resource and Environmental Protection(JLCBE)(No.JLCBE07001)
【CateGory Index】: S632.9
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【References】
Chinese Journal Full-text Database 1 Hits
1 LIU Dan-mei1,2,JIANG Ji-yu3,YANG Jun2 (1.Eastern Liaoning University,Dandong,Liaoning 118001,China;2.Department of Biological Science and Technology,Dalian University of Technology,Dalian,Liaoning 116024,China;3.Dalian Shenju Taro Ecological Development Co.Ltd,Dalian,Liaoning 116024,China);Ecological Functions of Jerusalem artichoke[J];Northern Horticulture;2009-10
【Co-references】
Chinese Journal Full-text Database 4 Hits
1 XIA Tian-xiang~1, LIU Zhao-pu~1, QI Chang-hai~2, CHEN Ming-da~1(1.College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China; 2.863 Experimental Base of Nanjing Agricultural University, Laizhou, Shandong 261400, China);Effect of seawater irrigation on Helianthus tuberosus L.in Laizhou Gulf[J];Agricultural Research in the Arid Areas;2004-03
2 FAN Guang-hui,MA Yu-lin(Qinghai Academy of Agriculture and Forestry,Xining Qinghai,810016);Cultivation Test on Jerusalem Artichoke in Chai Da-mu Basin Desert[J];Science and Technology of Qinghai Agriculture and Forestry;2008-03
3 LONG Xiao-Hua S.K.MEHTA LIU Zhao-Pu~(*2) College of Resources and Environmental Sciences,Nanjing Agricultural University,Nanjing 21009 (China).;Effect of NO_3~--N Enrichment on Seawater Stress Tolerance of Jerusalem Artichoke (Helianthus tuberosus)[J];土壤圈(英文版);2008-01
4 ZHOU Zheng1,2,CAO Hai-long1,2,ZHU Yu1,2,LI Shu-guang1,BAI Xue-fang1,ZHAO Xiao-ming1 and DU Yu-guang1 (1.Dalian Institute of Chemistry and Physics,Chinese Academy of Sciences,Dalian 116023,China;2.Graduate School of Chinese Academy of Sciences,Beijing 100049,China);The Primary Study of Ethanol Production by Fermenting of Jerusalem Artichoke Instead of Corn[J];Acta Agriculturae Boreali-Occidentalis Sinica;2008-04
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