Effects of Drought Stress on Active Oxygen Metabolism of Buckwheat Seedling

doi:10.7668/hbnxb.2009.04.030

Abstract

Abstract: The effects of drought stress on growth and development of buckwheat seedling were treated with the osmotic stress solution PEGwere studied using four tartary buckwheat cultivars. The results showed that with the intensification and the time delay of drought,content of chlorophyll decreased gradually,and activities of superoxide dismutase (SOD),peroxi2 dase (POD),catalase (CAT) increased first then decreased,and content of malondialdephyde (MDA) increased gradually. Compared to other three tartary buckwheat cultivars,Xinong 9976 had the higher content of chlorophyll and the activities peak of dismutase (SOD),peroxidase (POD),catalase (CAT),the maximum value of activities was delayed,Xinong 9976 kept up the heigher Activities of protective enzymes and had a lower content of malondialdephyde (MDA).

Key words: Drought stress, Buckwheat seedling, Activities of protective enzymes

CLC Number:

S17.01

GONG Qiao-ling, FENG Bai-li, GAO Jin-feng, CHAI Yan, SHI Hu, ZHOU Ji-hua. Effects of Drought Stress on Active Oxygen Metabolism of Buckwheat Seedling[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2009, 24(4): 153-157. doi: 10.7668/hbnxb.2009.04.030.

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http://www.hbnxb.net/EN/Y2009/V24/I4/153

References

[1] 克雷默 P J.植物与水分关系[M].许旭旦译.北京:科学技术出版社989.
[2] Hslao T C.Plant responses to water stress[J].Plant Physiol973:24:519-570.
[3] 汤章城.植物对水分胁迫的反应与适应性[J].植物生理学通讯983(3):24-29.
[4] 李文兵,王燕凌,李芳,等.水分胁迫下多枝柽柳体内活性氧与保护酶的关系[J].新疆农业大学学报,2007,30(1):30-34.
[5] 时忠杰,杜阿朋,胡哲森,等.水分胁迫对板栗幼苗叶片活性氧代谢的影响[J].林业科学研究,2007,20(5):683-687.
[6] 李建武,王蒂,雷武生.干旱胁迫对马铃薯叶片膜保护酶系统的影响[J].江苏农业科学,2007,3:100-103.
[7] 陈毓荃.生物化学实验方法和技术[M].北京:科学出版社,2002:197-199.
[8] Giannopolitis C N,Ries S K.Superoxide dismutases:I.Occurrence in higher plants[J].Plant Physiol977,59:309-314.
[9] Cabello P,Agüera E,Haba P.Metabolic changes during natural ageing in sunflower leaves:(Helianthus annuus)expression and activity of glutamine synthetase isoforms are regulated differently during senescence[J].Physiologia Plantarum,200628:175-185.
[10] 施特尔马赫.酶的测定方法[M].钱嘉渊译.北京:中国轻工业出版社992:186-194.
[11] 高俊凤.植物生理学实验技术[M].西安:世界图书出版社西安公司,2000:196-197.
[12] 刘友良.植物水分逆境生理[M].北京:农业出版社992.
[13] 刘建新,王鑫,王凤琴.水分协迫对苜蓿幼苗渗透调节物质积累和保护酶活性的影响[J].草业科学,2005,22(3):18-21.
[14] 毕会涛,黄付强,邱林,等.干旱胁迫对灰枣保护性酶活性及膜脂过氧化的影响[J].中国农学通报,2007,23(2):151-155.
[15] 李文兵,王燕凌,李芳,等.水分胁迫下多枝柽柳体内活性氧与保护酶的关系[J].新疆农业大学学报,2007,30(1):30-34.
[16] 丁波,王德炉,杨成,等.茶树水分胁迫与干旱研究现状[J].贵州茶叶,200731(3):9-14.
[17] Jeyaramaraja P R,Pius P K,Raj Kumar,et al.Soil moisture stress-induced alterations in bioconstiuents determining teaquality[J].Journal of the Science of Food and Agriculture,2003187-1191.
[18] 刘玉英,王三根,徐泽,等.不同茶树品种干旱胁迫下抗氧化能力的比较研究[J].中国农学通报,2006,22(4):264-268.
[19] 王邦锡.渗透胁迫引起的膜损伤与膜脂过氧化和一些自由基的关系[J].中国科学(B)992,22(4):364-368.
[20] 尹永强,胡建斌,邓明军.植物叶片抗氧化系统及其对逆境胁迫的响应研究进展[J].中国农学通报,2007,2(1):105-110.

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