不同生态系统中细菌遗传物质的转移  

GENETIC TRANSFER AMONG BACTERIA IN DIFFERENT ECOLOGICAL ENVIRONMENTS

作　　者：林晓燕[1] 李林[1] 孙明[1] 喻子牛[1] 

机构地区：[1]华中农业大学农业微生物学国家重点实验室微生物农药国家工程研究中心,武汉430070

出　　处：《应用与环境生物学报》2005年第3期388-392,共5页Chinese Journal of Applied and Environmental Biology

基　　金：国家自然科学基金项目(No.30170032);国家"863"项目(No.2001AA212301)资助~~

摘　　要：核苷酸序列分析和全基因组序列分析表明,细菌的进化通常是由于不同种属之间遗传物质水平转移而推进.基因转移的主要方式有转化、转导和接合.本文综述了有关自然界不同生态系统中细菌遗传物质转移的研究,这些研究可以促使更好地评估基因的水平转移.同时在农业生产或环境补救时人们会特意向环境中释放天然或重组细菌,了解环境中基因的水平转移对于安全评估这些细菌造成的后果也是必需的.Nucleotide sequence analysis shows that bacterial evolution is often promoted by horizontal gene flow among different species and genera. In bacteria, gene transfer is mainly conducted by the means of transformation, transduction and conjugation. This review examines the roles of these gene transfer processes among different bacteria in various ecological niches in natural environment, which are necessary for well assessing the gene transfer. The understanding of the role of horizontal gene transfer in the environment is essential for evaluating the possible consequences of the deliberate environmental release of natural or recombinant bacteria for agricultural and bioremediation purposes. Ref 46

关 键 词：细菌 遗传物质 基因水平转移 生态系统 

分 类 号：Q938[生物学—微生物学]