Binding and Transformation of Extracellular DNA in Soil

CAI Peng; HUANG Qiao-Yun; ZHANG Xue-Wen; CHEN Hao

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Binding and Transformation of Extracellular DNA in Soil

机译：土壤中细胞外DNA的结合和转化

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DNA is the genetic material of various organisms. Extracellular DNA adsorbed or bound on surface-active particles in soils has been shown to persist for long periods against nucleases degradation and still retain the ability to transform competent cells. This paper reviews some recent advances on the binding and transformation of extracellular DNA in soils,which is fundamental to understanding the nature of the soil, regulating biodiversity, and assessing the risk of releasing genetically engineered microorganisms (GEMs) as well as being helpful for development of the genetic evolutional theory of bacteria. Several influencing factors, such as soil pH, ionic strength, soil surface properties, and characteristics of the DNA polymer, are discussed. To date, the understanding of the type of molecular binding sites and the conformation of adsorbed and bound DNA to soil particles is still in its infancy.

机译：DNA是各种生物的遗传物质。吸附或结合在土壤中的表面活性颗粒上的细胞外DNA已被证明可以长期抵抗核酸酶降解，并且仍然具有转化感受态细胞的能力。本文综述了土壤中细胞外DNA的结合和转化的一些最新进展，这对于理解土壤的性质，调节生物多样性以及评估释放基因工程微生物（GEM）的风险以及为发展提供了基础。细菌的遗传进化理论。讨论了几个影响因素，例如土壤的pH值，离子强度，土壤表面特性和DNA聚合物的特性。迄今为止，对分子结合位点类型以及吸附和结合的DNA与土壤颗粒的构象的了解仍处于起步阶段。

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来源
《土壤圈（英文版）》 |2005年第1期|16-23|共8页
作者
CAI Peng; HUANG Qiao-Yun; ZHANG Xue-Wen; CHEN Hao;
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作者单位

State Key Laboratory of Agricultural Microbiology, College of Resources and Environment, Huazhong Agriculture University, Wuhan 430070, China;

State Key Laboratory of Agricultural Microbiology, College of Resources and Environment, Huazhong Agriculture University, Wuhan 430070, China;

State Key Laboratory of Agricultural Microbiology, College of Resources and Environment, Huazhong Agriculture University, Wuhan 430070, China;

College of Science, Huazhong Agriculture University, Wuhan 430070, China;

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收录信息中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
原文格式 PDF
正文语种 chi
中图分类农业基础科学;
关键词
adsorption; binding; extracellular DNA; soil; transformation;

机译：吸附;结合;细胞外DNA;土壤;转化;

Binding and Transformation of Extracellular DNA in Soil

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