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...

硫对水稻种子萌发过程中铜毒害的缓解效应

DOI: 10.7685/j.issn.1000-2030.2007.02.009, PP. 44-48

Keywords: 铜毒害,,种子萌发,水稻

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用种子萌发试验,研究了CuCl2胁迫下外源无机硫对水稻(OryzasativaL.)种子萌发过程中铜毒害的缓解效应。结果表明,水稻种子萌发过程中幼根和幼芽的伸长生长、叶绿体色素含量及发芽率均随介质中铜离子浓度增加而降低。10μmol.L-1Cu2+处理显著抑制萌发种子的α-淀粉酶及过氧化氢酶(CAT)、过氧化物酶(POD)的活性,显著提高MDA含量。在铜胁迫下,加入10mmol.L-1SO42-可以显著提高水稻种子的发芽率,促进幼根和幼芽的伸长生长,增加幼芽中叶绿素和类胡萝卜素含量,提高α-淀粉酶及CAT、POD的活性,显著降低MDA含量。

References

[1]  Abedin M,Meharg A A.Relative toxicity of arsenite and arsenate on germination and early seedling growth of rice(Oryza sativa L.)[J].Plant and Soil.2002,243:57-66
[2]  朱广廉,钟诲文,张爱琴.植物生理学实验[M].北京:北京大学出版社.1990:175-178
[3]  Jiang Mingyi,Zhang Jianhua.Water stress-induced abscisic acid accumulation triggers the increased generation of reactive oxygen species and up-regulates the activities of antioxidant enzymes in maize leaves[J].Journal of Experimental Botany.2002,53(379):2401-2410
[4]  Hawkesford M J.Plant responses to sulphur deficiency and the genetic manipulation of sulphate transporters to improve S-utilization efficiency[J].Experimental Botany.2000,51(342):131-138
[5]  Demidchik V,Sokolik A,Yurin V.The effect of Cu2+ on ion transport systems of the plant cell plasmalemma[J].Plant Physiology.1997,114:1313-1325
[6]  姚益云,赵振纪,刘永厚.铜对紫云英根细胞毒害研究[J].江西农业大学学报.1997,19(2):76-79
[7]  Shen Zhenguo,Zhang Fenqin,Zhang Fusuo.Toxicity of copper and zinc in seedings of Mung Bean and inducing accumulation of polyamine[J].Journal of Plant Nutrition.1998,21(6):1153-1162
[8]  常红岩,孙百晔,刘春生.植物铜素毒害研究进展[J].山东农业大学学报(自然科学版).2000,31(2):227-230
[9]  Haberlandt G.Die kleberschicht des gras-endossperms als diastase ausscheidendes drusengewebe[J].Ber Deut Ges.1980,8:40-48
[10]  Friedrich J W,Schrader L E.Sulfur deprivation and nitrogen metabolism in maize seedlings[J].Plant Physiology.1978,61:900-903
[11]  P(a)tsikk(a) E,Kairavuo M.Excess copper predisposes photosystemⅡ to photoinhibition in vivo by out competing iron and causing decrease in leaf chlorophyll[J].Plant Physiology.2002,129:1359-1367
[12]  Chen Y X,He Y F,Luo Y M.Physiological mechanism of plant roots exposed to cadmium[J].CHEMOSPHERE.2003,50:789-793
[13]  Glaeser H,Coblenz A,Kruczek R.Glutathione metabolism and heavy metal detoxification in Schizosaccharomyces pombe[J].Current Genetics.1991,19:207-213
[14]  Miyoshi K,Sato T.The effect of kinetin and gibberellin on the germination of dehusked seed of indica and japonica rice(Oryza sativa L.)under anaerobic and aerobic conditions[J].Annals of Botany.1997,80:479-483
[15]  Pandey N,Sharma C P.Effect of metal Co2+,Ni2+ and Cd2+ on growth and metabolism of cabbage[J].Plant Science.2002,163:753-758
[16]  张宪政.作物生理研究法[M].北京:中国农业出版社.1992:148-150
[17]  Sommer A L.Copper as an essential for plant growth[J].Plant Physiology.1931,6:339-345
[18]  Brown H T,Morris G H.Researches on the germination of some of the Gramineae[J].Journal of the Chemical Society.1980,57:458-528
[19]  McMahon P J,Anderson J W.Preferential allocation of sulphur into γ-glutamylcysteinyl peptides in wheat plants grown at low sulphur nutrition in the presence of cadmium[J].Physiologia Plantarum.1998,104:440-448
[20]  Tripathi R D,Rai U N,Gupta M.Induction of phytochelatins in Hydrilla verticillata(I.f.)royle under cadmium stress[J].Bulletin of Environmental Contamination and Toxicology.1996,56:505-512
[21]  刘传平,郑爱珍,田娜.外源GSH对青菜和大白菜镉毒害的缓解作用[J].南京农业大学学报.2004,27(4):26-30
[22]  Drazkiewicz M,Skórzy?ska-Polit E,Krupa Z.Response of the ascorbate-glutathione cycle to excess copper in Arabidopsis thaliana(L.)[J].Plant Science.2003,164:195-202
[23]  International Organization for Standardization.ISO 11269-1.Soil quality-determination of the effects of pollutants on soil flora.Part 1:Method for the measurement of inhibition of root growth[S].1993

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133