我们的网站为什么显示成这样?

可能因为您的浏览器不支持样式,您可以更新您的浏览器到最新版本,以获取对此功能的支持,访问下面的网站,获取关于浏览器的信息:

|Table of Contents|

铜、锌胁迫对丁香蓼生理指标的影响(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2009年04期
Page:
43-47
Column:
研究论文
publishdate:
2009-07-30

Article Info:/Info

Title:
Effects of Cu and Zn stress on physiological indications of Ludwigia prostrate Roxb
Author(s):
WANG Guanglin12 ZHANG Jinchi1* WANG Li1 WANG Youbao3
1.College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China; 2.Department of Chemistry and Life Science, West Anhui University, Lu’an 237012, China; 3.College of Life Science, Anhui Normal University, Wuhu 241000, China
Keywords:
Ludwigia prostrate Roxb Cu and Zn stress activated oxygen combined pollution
Classification number :
Q945
DOI:
10.3969/j.jssn.1000-2006.2009.04.009
Document Code:
A
Abstract:
Effects of single and combined stress of Cu and Zn on chlorophyll content and scavenging system of activated oxygen in leaves of Ludwigia prostrate Roxb were studied by cultivation experiments. The results showed that the activity of SOD and contents of chlorophyll increased firstly in lower concentration of Cu (100 mg/kg) and Zn (100 mg/kg). At the same time, electric conductivity and MDA content of leaf cells decreased. Those may be regarded as a protecting function of plants. With the increase of concentration of Cu and Zn, the activity of SOD decreased. When the concentration of Cu & Zn was 800 mg/kg, the activity of SOD were 67.05% and 53.58% of the control, respectively. While the activity of POD increased gradually and took important parts in antioxidation at higher concentration of Cu and Zn stress. The content of MDA of Cu (200 mg/kg) + Zn (800 mg/kg) & Zn (200 mg/kg) + Cu (800 mg/kg) was enhanced with Cu, Zn concentration increasing. Compared with the control they were increased by 110% and 130%, respectively. The activity of CAT had little effect. The results indicated that Cu and Zn stress affected scavenging system of activated oxygen and resulted in imbalance of activated oxygen metabolism.

References

[1]何勇田,熊先哲. 复合污染研究进展[J]. 环境科学,1994,15(6):79-83.
[2]Foyer C H, Lelandais M, Kunert K J. Photooxidative stress in plant[J]. Physiologia Plantarum, 1994, 92: 708-719.
[3]徐勤松,施国新,周红卫,等. Cd、Zn复合污染对水车前叶绿素含量和活性氧清除系统的影响[J]. 生态学杂志,2003,22(1):5-8.
[4]南忠仁,李吉均. 干旱区污灌土壤作物系统Cu、Zn的行为特征[J]. 盐湖研究,2001,9(1):25-28.
[5]王广林,王立龙,王育鹏,等. 冶炼厂污灌区土壤铜和锌污染与土壤酶活性[J]. 应用生态学报,2005,16(2):328-332.
[6]郭水良,李扬汉. 杂草的基本特点及其在丰富栽培地生物多样性中的作用[J]. 资源科学,1996(3):48-53.
[7]王广林,王立龙,李征,等. 杂草对土壤重金属的富集与含量特征研究[J]. 生态学杂志,2005,24(6):639-643.
[8]张志良. 植物生理学实验指导[M]. 北京:高等教育出版社,1990.
[9]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.
[10]陈建勋,王晓锋. 植物生理学实验[M]. 广州:华南理工大学出版社,2002.
[11]波钦诺克 X H. 植物生物化学分析方法[M]. 荆家海,丁钟荣,译. 北京:科学出版社,1981.
[12]Somashekaraiah B V, Padmajaes K, Prasad R K. Phytotoxicity of cadmium ions on germination seedings of mung bean (Phaseolus vulgarize): Involvement of lipid peroxides in chlorophyll degradation[J]. Plant Physiol, 1992, 65: 85-89.
[13]李元,王焕校,吴玉树. 镉和铁对烟草一些生理指标的影响[J]. 生态学报,1992,12(2):147-154.
[14]马成仓. Hg对油菜叶细胞膜的损伤及细胞的自身保护作用[J]. 应用生态学报,1998,9(3):323-326.
[15]杨淑缜,高俊凤. 活性氧、自由基与植物的衰老[J]. 西北植物学报,2001,21(2):215-220.
[16]Chis B, Marc V H, Dirk I. Superoxide dismutase and stress tolerance[J]. Annu Rev Plant Physiol Plant Mol Biol, 1992, 43: 83-116.
[17]杨居荣,贺建群,张国祥,等. 不同耐性作物中几种酶活性对Cd胁迫的反应[J]. 中国环境科学,1996,16(2):113-117.
[18]VeraEstrella R, Hiffins V J, Blumwald E. Plant defense response to fungal pathogens: Ⅱ G-proteinmediated changes in host plasma membrane redox reaction[J]. Plant Physiol, 1994, 106: 97-102.
[19]黄玉山,罗广华,关启文. 镉诱导植物的自由基过氧化损伤[J]. 植物学报,1997,39(6):522-526.
[20]Luna C M, Gonzalez C A, Tripp V S. Oxidative damage caused by on excels of copper in oat leaves[J]. Plant Cell Physiol, 1994, 35: 11-15.
[21]蒋明义,杨文英,徐江,等. 渗透胁迫下水稻幼苗中叶绿素降解的活性氧损伤作用[J]. 植物学报,1994,36(4):289-295.

Last Update: 2009-07-30