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Risk mitigation of genetically modified bacteria and plants designed for bioremediation
被引:46
作者:
Davison, J
[1
]
机构:
[1] INRA, Biol Cellulaire Lab, F-78026 Versailles, France
关键词:
phytoremediation;
genetically modified organisms;
biosafety;
horizantal gene transfer;
risk-assessment;
D O I:
10.1007/s10295-005-0242-1
中图分类号:
Q81 [生物工程学(生物技术)];
Q93 [微生物学];
学科分类号:
071005 ;
0836 ;
090102 ;
100705 ;
摘要:
While the possible advantages of bioremediation and phytoremediation, by both recombinant microbes and plants, have been extensively reviewed, the biosafety concerns have been less extensively treated. This article reviews the possible risks associated with the use of recombinant bacteria and plants for bioremediation, with particular emphasis on ways in which molecular genetics could contribute to risk mitigation. For example, genetic techniques exist that permit the site-specific excision of unnecessary DNA, so that only the transgenes of interest remain. Other mechanisms exist whereby the recombinant plants or bacteria contain conditional suicide genes that may be activated under certain conditions. These methods act to prevent the spread and survival of the transgenic bacteria or plants in the environment, and to prevent horizontal gene flow to wild or cultivated relatives. Ways in which these genetic technologies may be applied to risk mitigation in bioremediation and phytoremediation are discussed.
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页码:639 / 650
页数:12
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