The Study on Sulfhydryl Compound to the Mechanism of Detoxification in Wheat Under Copper and Cadmium Stress

doi:10.7668/hbnxb.2008.03.038

Abstract

Abstract: Wheat were cultivated in hydroponic culture solution with 100 μmol/L Cu2+ and 100 μmol/L Cd2+separately,the concentration of copper and cadmium,malonaldehyde,phytochelatin and glutathione in roots and leaf were investigated.The results revealed that under stress the concentration of copper and cadmium increased gradually,especially in roots the concentration increased remarkably,75 fold growth approximately,but in leaf the increase was slowly,2-5 fold approximately.The content of cadmium is higher than copper in leaf and roots.Lipid peroxidation in leaf was stronger than that in roots.Under heavy metal stress the concentration of glutathione in leaf was higher than that in roots,while phytochelatins in leaf was lower than that in roots.

Key words: Wheat, Cadmium, Copper, Malonaldehyde, Phytochelatin, Qutathione

CLC Number:

WANG Hai-ou, ZHONG Guang-rong, LIU Xiao-feng, GONG Ai-jun, LI Xiao-jing. The Study on Sulfhydryl Compound to the Mechanism of Detoxification in Wheat Under Copper and Cadmium Stress[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(3): 158-161. doi: 10.7668/hbnxb.2008.03.038.

/ / Recommend / Download Citations

URL: http://www.hbnxb.net/EN/10.7668/hbnxb.2008.03.038

http://www.hbnxb.net/EN/Y2008/V23/I3/158

References

[1] 韩晋仙,马建华,魏林衡.污灌对潮土重金属含量及分布的影响[J].土壤,2006,38(3):292-297.

[2] 廖林仙,邵孝侯,钟华.污水灌溉对土壤环境的影响及其防治对策[J].江苏农业科学,2006(3):188-190.

[3] Fernandes J C,Henriques F S.Biochemical,physiological and structural effects of excess copper in plants[J].Bot Rev,1991,57(3):246-273.

[4] Alaoui-scsse B,Genet P,Vinit-Dunand F,et al.Effect of copper on growth in cucumber plants (Cucumis sativus) and its relationships with carbohydrate accumulation and changes in ion contents[J].Plant Sci,2004,166:1213-1218.

[5] Wisniewski L,Dickinson N M.Toxicity of copper to Quercus robur (English Oak) seedlings from a copper-rich soil[J].Environ Exp Bot,2003,50:99-107.

[6] Ouzounidou G,Eleftheriou E,Karataglis S.Ecophysiolngical and uhrastructural effects of copper in Thlaspi ochroleueum (Cruciferae)[J].Can J Bot,1992,70:947-957.

[7] Sanita di Toppi L,Gabbfielli R.Response to cadmium in higher plants[J].Environ Exp Bot,1999,41:105-130.

[8] Kahle H.Response of roots of trees to heavy metals[J].Envi-ron Exp Bot,1993,33:99-119.

[9] 陈少裕.植物谷胱甘肽的生理作用及意义[J].植物生理学通讯,1993,29(3):210-214.

[10] Nagalakshmi N,Prasad M N V.Response of glutathione cy-cle enzymes and glutathione metabolism to copper in Scenedesmus bijugatus[J].Plant Science,2001,160:291-299.

[11] Sharma S S,Kanl S,Metwally A,et al.Cadmium toxicity to barley (Hordeum vulgare) as affected by varying Fe nutri-tional status[J].Plant Science,2004,166:1287-1295.

[12] Zhang H Y,Xu W Z,Guo J B,et al.Coordinated responses of phytochelatins and metallothioneins to heavy metals in garlic seedlings[J].Plant Science,2005,169:1059-1065.

[13] Pence N S,Larsen P B,Ebbs S D,et al.The molecular physiology of heavy metal transport in the Zn/Cd hyperaccu-mulator Thlaspi caerulescens[J].Plant Biology,2000,97 (9):4956-4960.

[14] Gussarsson M,Asp H,Adalsteinsson S,et al.Enhancement of cadmium effects on growth and nutrient composition of birch (Betula pendula) by buthionine sulphoximine (BSO)[J].Journal of Experimental Botany,1996,47 (2):211-215.

[15] Luna C M,Gouzalex C A,Tripp V S.Oxidative damage caused by excess of copper in oat leaves[J].Plant Cell Physiol,1994,35:11-15.

[16] Smith G C.Response of silver maple seedings to an acutedose of root applied Cd[J].Forest Science,1984,30(3):582-586.

[17] Dong J,Wu F B,Zhang G P.Influence of cadmium on an-tioxidant capacity and four microelement concentrations in tomato seedlings (Lycopersicon esculentum)[J].Chemo-sphere,2006,64:1659-1666.

[18] 丁海东,朱为民,杨少军,等.镉、锌胁迫对番茄幼苗生长及脯氨酸和谷胱甘肽含量的影响[J].江苏农业学报,2005,21(3):191-196.

[19] Wo'jcik M,Tukiendorf A.Phytochelatin synthesis and cad-mium localization in wild type of Arabidopsis thaliana[J] -Plant Growth Regulation,2004,44:71-80.

[20] Stolt J P,Sneller F E C,Bryngelsson T,et al.Phytochelatin and cadmium accumulation in wheat[J].Environ Exp Bot,2003,49:21-28.

Please choose a citation manager

Content to export