|Table of Contents|

Study on Single Hg2+ and Hg2+ with Ascorbic Acid Combination Treatment on  Toxic Effect of Ryegrass(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年05期
Page:
60-63
Research Field:
Publishing date:

Info

Title:
Study on Single Hg2+ and Hg2+ with Ascorbic Acid Combination Treatment on  Toxic Effect of Ryegrass
Author(s):
WU Li-fang1; 2; LU Wei-dong1
1.College of Biologic Resource and Environmental Science，Qujing Normal University，Qujing，Yunnan 655011；
2.School of Agriculture and Biological Technology，Yunnan Agricultural University，Kunming，Yunnan 650201
Keywords:
ryegrass; germination; Hg; ascorbic acid
PACS:
S 543+.6
DOI:
-
Abstract:
Taking 3 varieties ryegrass ‘Winter game’，‘Derby supreme’ and ‘Ted’ as test materials，the effect of single Hg2+and Hg2+ with ascorbic acid combination treatment on seed germination and seedling growth of ryegrass were studied.The results showed that Hg2+ had inhibition and its effect was different between three varieties.Seed germination potential of ‘Winter game’ did not show significant with concentration of Hg2+ at 0~10 mg/L in alone treatment.When Hg2+ reached up 100 mg/L，the inhabitation was very obvious.Compared with control，germination potential decreased 48% in Hg2+100 mg/L treatment，and in Hg2+200 mg/L treatment，seed germination obstructed seriously.Germination rate of three varieties had differences and decreased progressive between every treatments.The change trend of root length，bud length and biomass were consistent，and correlated negatively with Hg2+ concentration.Hg2+and ascorbic acid combination treatment had certain soothing effects which was obvious in high concentration.The soothing effects for resistant mercury ‘Winter game’ was lower ‘Derby supreme’ and ‘Ted’.Generally，‘Winter game’ for resistant mercury ability was the strongest，second ‘Derby supreme’，third ‘Ted’.

References:

[1]沈宗根,王立新,张海芸,等.镧对镉、汞复合污染下豌豆生长发育效应的影响[J].北方园艺,2009(5):9-12.
[2]王立新,郁建锋,张泉波,等.锌对汞胁迫下豌豆幼苗生长发育效应的影响[J].安徽农业科学,2008,36(20):8444-8446.
[3]Muller-Moule P，Conklin P L，Niyogi K K.Ascorbate deficiency can limit violaxanthin de-epoxidase activity in vitro[J].Plant Physiol,2002,128:970-977.
[4]Noctor G，Foyer C H.Ascorbic and glutathione keeping active oxygen under control[J].Annu Rev Plant Physiol，Plant Mol Biol,1998,49:249-279.
[5]Hao X Z，Zhou D M，Si Y B.Revegetation of copper mine tailings with ryegrass and willow[J].Edosphere,2004,14(3):283-288.
[6]廖敏,黄昌勇.黑麦草生长过程中有机酸对镉毒性的影响[J].应用生态学报,2002,13(1):109-112.
[7]周启星,孔繁翔,朱琳.生态毒理学[M].北京:科学出版社,2004:325-352.
[8]杨保华,官春云,陈剑红.蓖齿眼子菜、沼生水马齿对汞耐受性与浓缩性研究[J].湖南有色金属,2004,20(2):36-39.
[9]杨肖娥,龙新宪,倪吾钟.超积累植物吸收重金属的生理及分子机制[J].植物营养与肥料学报,2002,8(1):8-15. [10]朱志梅,侯昭华,刘康,等.Hg2+对蚕豆根尖细胞的微核效应[J].西北大学学报(自然科学版),2008,38(1):96-98.[11]赵宇玮,郝建国,步怀宇,等.小麦耐甘礴醉变异细胞系的离体筛选及植株再生[J].西北大学学报(自然科学版),2005,35(2):184-190.
[12]许丙军,施国新,徐勤松,等.外源抗坏血酸对镉胁迫下黑藻抗氧化系统的保护作用[J].应用生态学报,2006,17(9):1768-1771.
[13]王洪政,沈振国.根系抗坏血酸在小麦幼苗铝耐性中的作用[J].西北植物学报,2006,26(4):753-758.
[14]马剑敏,李今,张改娜,等.Hg2+与POD复合处理对小麦萌发及幼苗生长的影响[J].植物学通报,2004,21(5):531-538.

Memo

Memo:
-
Last Update: 2014-08-21