全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
核农学报  2012 

硅处理对镉锌胁迫下水稻产量及植株生理特性的影响

, PP. 936-941

Keywords: 水稻,,,,幼苗,生理

Full-Text   Cite this paper   Add to My Lib

Abstract:

以郑稻18为材料,通过盆栽试验研究了镉(Cd)、锌(Zn)污染胁迫和硅(Si)处理对水稻产量、不同生育时期植株生理特性的影响,从而揭示硅缓解Cd、Zn胁迫的生理机制。结果表明,水稻植株受到Cd、Zn毒害时,不同生育期植株生物量、产量、叶片叶绿素含量及可溶性蛋白质含量均显著下降,而叶片质膜透性、丙二醛(MDA)含量、可溶性糖含量和过氧化物(POD)活性显著增加。施硅处理显著提高水稻植株对重金属的抗性,主要反映在植株生物量显著增加,叶片叶绿素含量及可溶性蛋白质含量显著上升,而叶片质膜透性、MDA含量、POD活性和可溶性糖含量显著降低,产量显著增加,说明硅缓解植株体内重金属毒害的代谢机制与其对抗氧化酶系统的调控作用及作物抗性的提高有关。

References

[1]  Liang Y C, Wong J C, Wei L. Silicon- mediated enhancement of cadmium tolerance in maize (Zea mays L.) grown in cadmium contaminated soil [J]. Chemosphere, 2005, 58 (4): 475-484
[2]  史新慧, 王 贺, 张福锁. 硅提高水稻抗镉毒害机制的研究[J]. 农业环境科学学报, 2006, 25(5): 1112-1116
[3]  张 佳, 李 军, 董善辉,万佳静. 硅对外源镉在水稻籽实中积累及水稻产量的影响[J]. 沈阳农业大学学报, 2009, 40(2): 224-226
[4]  周建华, 王永锐. 硅营养缓解水稻幼苗Cd、Cr毒害的生理研究[J]. 应用与环境生物学报, 1999, 5 (1): 11-15
[5]  Wang L J, Wang Y H. Silicon induced cadmium tolerance of rice seedlings [J]. Journal of Plant Nutrition, 2000, 23 (10): 1397-1406
[6]  吕金印, 张 微, 柳 玲. Cd2+处理对几种叶菜可食部分Cd含量及品质的影响[J].核农学报, 2010, 24(4):856-862
[7]  李淑仪, 林翠兰, 许建光, 蓝佩玲,廖新荣,王荣萍. 施硅对污染土壤中铬形态及其生物有效性的影响[J]. 生态环境, 2008, 17 (1): 227-231
[8]  李合生. 植物生理生化实验原理和技术[M]. 北京:高等教育出版社, 2000
[9]  王爱国. 植物的氧代谢[M]. 北京: 科学出版社, 1999
[10]  杨艳芳, 梁永超, 娄运生, 孙万春. 硅对小麦过氧化物酶、超氧化物歧化酶和木质素的影响及抗白粉病的关系[J]. 中国农业科学, 2003, 36(7): 813-817
[11]  Tripathi B N, Mehta S K, Amar A,et al. Oxidative stress in Scenedesmus sp. during short- and long-term exposure to Cu2+ and Zn2+[J].Chemosphere, 2006, 62: 538–544
[12]  Naser A, Anjum N A, Umar S,et al. Sulphur protects mustard (Brassica campestris L.) from cadmium toxicity by improving leaf ascorbate and glutathione [J]. Plant Growth Regulation, 2008, 54: 271-279
[13]  Stohs S J, Bagchi D. Oxidative mechanisms in the toxicity of metal ions [J]. Free Radical Biology and medicine, 1995, 18(2): 321-336
[14]  刘鸣达, 王丽丽, 李艳利. 镉胁迫下硅对水稻生物量及生理特性的影响[J].中国农学通报, 2010, 26(13): 187-190
[15]  周新惟, 达布希拉图, 蔡 磊,邓文祥,赵会玉,蒋春和,张兴飞,邓美鹏. 五种渗透调节物质对烤烟抗旱能力的影响 [J]. 江西农业学报, 2009, 21(5): 17-20
[16]  Hegedus A, Erdei S, Horvath G. Comparative studies of H2O2 detoxifying enzymes in green and greening barley seedlings under cadmium stress [J]. Plant Science, 2001, 160:1085-1093
[17]  敖 嘉,唐运来,陈 梅, 安 冰, 王 丹, 陶 扬.Sr胁迫对油菜幼苗抗氧化指标影响的研究[J].核农学报,2010,24(1):166-170
[18]  Iwasaki K, Maier P, Fecht M, et al. Leaf apoplastic silicon enhances manganese tolerance of cowpea ( Vignaunguiculata L.) [J]. Journal of Plant Physiology, 2002, 159: 67-173
[19]  Bradford M M. A rapid and sensitive method for the quantitation of microgram quantity of protein utilizing the principle of [J]. Analytical Biochemistry, 1976, 72: 248-254
[20]  Cho U, Seo U. Oxidative stress in Arabidopsis thaliana exposed to cadmium is due to hydrogen peroxide accumulation [J]. Plant Science, 2005, 168: 113-120
[21]  Becana M, Dalton D A, Moran J F, et al. Reactive oxygen species and antioxidants in legume nodules [J]. Physiologia plantarum, 2000, 109(4): 372-381
[22]  Zhang H, Jiang Y, He Z, Ma M. Cadmium accumulation and oxidative burst in garlic (Allium sativum) [J]. Journal of Plant Physiology, 2005, 162: 977–984
[23]  Galvez L, Clark R B, Gourley L M, et al. Silicon interaction with manganese and aluminum toxicity in sorghums [J]. Journal of Plant Nutrition, 1987, 10: 1139-1147
[24]  黄玉山, 罗广华, 关棨文. 镉诱导植物的自由基过氧化损伤[J]. 植物学报, 1997, 39: 522-526
[25]  孙光闻, 朱祝军, 方学智. 不同镉水平对白菜生长及抗氧化酶活性的影响 [J]. 园艺学报, 2004, 31(3): 378-380
[26]  Gomes-Junior R A, Moldes C A, Delite F S, et al. Antioxidant metabolism of coffee cell suspension cultures in response to cadmium [J]. Chemosphere, 2006, 65(8): 1330-1337
[27]  Shi Q H, Bao Z Y, Zhu Z J, et al. Silicon mediated alleviation of Mn toxicity in Cucumis sativus in relation to activities of superoxide dismutase and ascorbate peroxidase [J]. Phytochemistry, 2005,66(13): 155-159

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133