Genotoxicity of SPL (spent pot lining) as measured by Tradescantia bioassays

被引：43
|
作者：
Andrade-Vieira, L. F. [1 ]
Davide, L. C. [1 ]
Gedraite, L. S. [1 ]
Campos, J. M. S. [2 ]
Azevedo, H. [3 ]
机构：
[1] Univ Fed Lavras, Dept Biol, BR-37200000 Lavras Mg, Brazil
[2] Univ Fed Juiz de Fora, Dept Biol, BR-36036330 Juiz De Fora Mg, Brazil
[3] Brazilian Nucl Energy Commiss, Pocos Caldas Lab, BR-37701970 Pocos De Caldas Mg, Brazil
来源：
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY | 2011年 / 74卷 / 07期
关键词：
Tradescantia assays (micronuclei or stamen hair mutation); Dyads; Triads; Plant genotoxicity; POLLEN MOTHER CELLS; PLANT BIOASSAYS; DNA-DAMAGE; URBAN AIR; MICRONUCLEUS; EMISSIONS; SOIL; LEACHATES; POTLINERS; SYSTEMS;
D O I：
10.1016/j.ecoenv.2011.07.008
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Spent Pot Liner (SPL) is a solid waste product generated in the process of aluminum production. Tradescantia micronuclei (Trad-MN) and stamen hair mutation (Trad-SHM) bioassays are very useful tests to assess genotoxicity of environmental pollutants. In the present study, we intended to investigate the genotoxicity of this waste with Tradescantia bioassays using leachates of SPL simulating the natural leachability of SPL in soil. The formation of micronuclei (MN) was found to be concentration dependent. MN frequency enhanced significantly with SPL treatment. In addition, SPL also appeared to increase the percentage of dyads and triads. Trad-SHM assay showed that SPL increases pink mutation events as SPL concentration increases. These results demonstrated that SPL is a cytogenotoxic agent that affects different genetic end-points (induction of micronuclei and point mutations) even at low concentration (2% and 3%). (C) 2011 Elsevier Inc. All rights reserved.
引用
收藏
页码：2065 / 2069
页数：5
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