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《Acta Horticulturae Sinica》 2016-06
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The Physiological Response of Lily to NaHCO_3 Stress

LI Ya-nan;YUAN Su-xia;XU Lei-feng;YANG Pan-pan;FENG Ya-yan;Younes Pourbeyrami Hir;MING Jun;Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences;College of Landscape Architecture,Nanjing Forestry University;  
In this experiment,osmotic regulation substances,antioxidant substances and ion were compared between Lilium regale Wilson(salt tolerance)and‘Sorbonne'(salt sensitiveness). The results showed that the change trend of these substances was the same in two lilies and L. regale Wilson produced more substances content than‘Sorbonne'. Soluble protein,proline content increased with the concentration of alkaline-salt(NaHCO_3)increasing. Soluble sugar and As A content increased under lower concentration of NaHCO_3 stress,then decreased under higher concentration and the activities of SOD and GR had the same trend. The activities of APX and GSH content decreased sharply under higher concentration of NaHCO_3. Na~+ mainly accumulated in middle leaves and upper leaves in‘Sorbonne',but stem and middle leaves in L. regale Wilson. Middle leaves and upper leaves seemed to be main storage organs for Na~+ in‘Sorbonne',but stem and middle leaves in L. regale Wilson. Compared with‘Sorbonne',L. regale Wilson had higher K~+/Na~+ ratios in root,middle leaves and upper leaves. The content of oxalic acid,lactic acid and acetic acid in L. regale Wilson increased,as well as malic acid and acetic acid in‘Sorbonne'. All the data indicated that compared with‘Sorbonne',L. regale Wilson could increase SOD activity and As A content under low concentration of NaHCO_3,increase soluble protein content and maintain established soluble sugar content under higher concentration of NaHCO_3,all of which are good explanations for its alkaline-salt tolerance.
【Fund】: 国家科技支撑计划项目(2012BAD01B07);; 国家社会公益研究专项(2005DIB3J022);; 北京市花卉重点项目(YLHH2006001 YLHH201300101);; 农业部园艺作物生物学与种质创制重点实验室项目
【CateGory Index】: S682.29
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