Effects of Silicon on Physiological and Biochemical Indexes of Wheat Seedlings under Cr and Cu Stresses

doi:10.7668/hbnxb.2014.S1.044

Abstract

Abstract: In this study,using wheat variety(Jingdong 8) as material,effects of exogenous silicon on physiological and biochemical indexes of wheat seedlings under K₂Cr₂O₇(0.6 mmol/L) and CuSO₄(0.8 mmol/L) stresses were studied in hydroponic conditions.The results showed that the soluble sugar content,MDA content,the activity of SOD and POD in wheat seedlings were significantly increased under K₂Cr₂O₇ and CuSO₄ stresses.The chlorophyll content in wheat seedlings were reduced significantly under K₂Cr₂O₇ and CuSO₄ stresses.Exogenous silicon with the concentration of 1.5 mmol/L played a noticeable role in reducing the soluble sugar content,MDA content,the activity of SOD and POD in wheat seedlings under K₂Cr₂O₇ and CuSO₄ stresses.Exogenous silicon with the concentration of 1.0 mmol/L played a noticeable role in creasing the chlorophyll content in wheat seedlings under K₂Cr₂O₇ and CuSO₄ stresses.Exogenous silicon with appropriate concentration could alleviate the damage caused by K₂Cr₂O₇ and CuSO₄ stresses to the wheat seedlings.

Key words: Silicon, Heavy metals, Triticum aestivum, Physiological and biochemical indexes

CLC Number:

S512.01

ZHANG Zhi-wen, QIN Su-ping, CHEN Yu-he, GUO Ai-ying, QIN Ling, LIN Xiao-hu. Effects of Silicon on Physiological and Biochemical Indexes of Wheat Seedlings under Cr and Cu Stresses[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2014, 29(S1): 229-233. doi: 10.7668/hbnxb.2014.S1.044.

/ / Recommend / Download Citations

URL: http://www.hbnxb.net/EN/10.7668/hbnxb.2014.S1.044

http://www.hbnxb.net/EN/Y2014/V29/IS1/229

References

[1] 卢志红,赵小敏,朱美英.铬Cr⁶⁺对水稻种子萌发及幼苗生长的影响[J].中国土壤与肥料,2008(3):60-62.
[2] 陈晓玲,余土元,秦华明,等.钙对铬胁迫下玉米幼苗生长及生理特性的影响[J].玉米科学,2009,17(4):74-78.
[3] 张志雯,陈于和,秦玲,等.重铬酸钾对黑麦的细胞遗传毒性及硅的缓解作用[J].麦类作物学报,2012,32(2):245-248.
[4] 王爱云,黄珊珊,钟国锋,等.铬胁迫对 3 种草本植物生长及铬积累的影响[J].环境科学,2012,33(6):2028-2037.
[5] 李进学,曹虎,张芬琴,等.Cu²⁺和Zn²⁺对普通小麦幼苗生长的影响[J].植物资源与环境学报,2005,14(4):59-60.
[6] 吴家燕,夏增禄,巴音,等.紫色土壤中镉铜铅砷污染对作物根系酶活性的影响[J].农业环境科学学报,1991,10(6):244-247,289.
[7] Epstein E.Silicon[J].Annu Rev Plant Physiol Plant Mol Biol,1999,50:641-664.
[8] Ma J F.Role ofsilicon in enhancingthe resistance of plants tobiotic and abiotic stresses[J].Soil Sci Plant Nutr,2004,50:11-18.
[9] 杨晴,郭守华.植物生理生化实验[M].北京:中国农业科学技术出版社,2010:86-154.
[10] 任安芝,高玉葆,刘爽.铬、镉、铅胁迫对青菜叶片几种生理生化指标的影响[J].应用与环境生物学报,2000,6(2):112-116.
[11] 孙小霞.高羊茅对铅递进胁迫的生理响应[J].河南科技大学学报:自然科学版,2006,27(6):75-78.
[12] Lin R,Wang X,Luo Y,et al.Effects of soil Cadmium on growth,oxidative stress and antioxidant system in wheat seedlings ( Triticum aestivum L.)[J].Chemosphere,2007,69(1):89-98.
[13] Shafaqat Ali,Pu Bai,Zeng F R,et al.The ecotoxicological and interactive effects of chromium and aluminum on growth,oxidative damage and antioxidant enzymes on two barley genotypes differing in Altolerance[J].Environmental and Experimental Botany,2011,70:185-191.
[14] 袁宇飞,韩晓梅,李光德,等.锌对汞胁迫下小麦幼苗生理特性的影响[J].应用与环境生物学报,2012,18(2):212-217.
[15] 王晨,王海燕,赵琨,等.硅对镉、锌、铅复合污染土壤中黑麦草生理生化性质的影响[J].生态环境,2008,17(6):2240-2245.
[16] 许建光,李淑仪,王荣萍, 等.硅对铬胁迫下小白菜生理指标的影响[J].生态学杂志,2007,26(6):865-868.
[17] Stoeva N,Berova M,Zlatev Z.Physiological response of maize to Arsenic contamination[J].Biologia Plantarum,2003,47(3):449-452.
[18] 顾明华,黎晓峰.硅对减轻水稻的铝胁迫效应及其机理研究[J].植物营养与肥料学报,2002,8(3):360-366.
[19] 朱志明.硅对汞毒害下玉米种子萌发代谢的影响[J].淮北煤师院学报:自然科学版,2001,22(4):41-43.
[20] 张永先,杨培权,许涛,等.硅对柱花草铝毒的解毒作用 [J].基因组学与应用生物学,2009,28(1),57-61.
[21] 陈秀芳,赵秀兰,夏章菊,等.硅缓解小麦镉毒害的效应研究[J].西南农业大学学报:自然科学版,2005,27(4):447-450.
[22] 张丽娜,宗良纲,任偲,等.硅对低镉污染水平下水稻幼苗生长及吸收镉的影响[J].农业环境科学学报,2007,26(2):494-499.
[23] 黄昌勇,沈冰.硅对大麦铝毒的消除和缓解作用研究[J].植物营养与肥料学报,2003,9(1):98-101.
[24] 王永锐,陈平.水稻对硒吸收、分布及硒与硅共施效应[J].植物生理学报,1996,22(4):344-348.
[25] 黄秋婵,黎晓峰,沈方科,等.硅对水稻幼苗镉的解毒作用及其机制研究[J].农业环境科学学报,2007,26(4):1307-1311.

Please choose a citation manager

Content to export