title: [Effects of transgenic crops on soil microorganisms: a review].
abstract: The worldwide cultivation of transgenic crops not only provides tremendous economic benefits, but also induces the concern about the potential risks of transgenic crops on soil ecosystem in which microorganisms are involved. The potential effects of transgenic crops on soil microorganisms include the direct effects of the transgenic proteins on non-target soil microorganisms, and the indirect effects of the unintentional changes in the chemical compositions of root exudates induced by the introduction of the exogenous transgenic proteins. Most of the studies on transgenic crops suggested that transgenic crops could affect the quantity and structure of soil microbial populations. However, the perceivable effects on the soil microorganisms are inconsistent, with some in significant and others in non-significant, or some with persistent and others with non-persistent. This paper summarized the effects of different transgenic crops on soil microorganisms, and discussed the factors affecting the assessment reliability, including the species of transgenic crops and the experimental technologies and principles. Some issues needed to be paid special attention to in the future studies were put forward.
authors.affiliation: State Key Laboratory for Biology of Plant Diseases and Insect Pests/Key Laboratory for Biological Control of Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China. yjz2100@163.com
authors.forename: Yan-Jun
authors.initials: YJ
authors.lastname: Zhang
authors.affiliation: State Key Laboratory for Biology of Plant Diseases and Insect Pests/Key Laboratory for Biological Control of Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Xie
authors.affiliation: State Key Laboratory for Biology of Plant Diseases and Insect Pests/Key Laboratory for Biological Control of Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
authors.forename: De-Liang
authors.initials: DL
authors.lastname: Peng
mesh_terms: D000083722:Bacillus thuringiensis Toxins; D001426:Bacterial Proteins / Q000009:adverse effects; D018556:Crops, Agricultural / Q000235:genetics* / Q000254:growth & development; D017753:Ecosystem; D004731:Endotoxins / Q000009:adverse effects; D003368:Gossypium / Q000235:genetics / Q000254:growth & development; D006460:Hemolysin Proteins / Q000009:adverse effects; D030821:Plants, Genetically Modified / Q000254:growth & development*; D018570:Risk Assessment; D012988:Soil Microbiology
chemical_list: D000083722:Bacillus thuringiensis Toxins; D001426:Bacterial Proteins; D004731:Endotoxins; D006460:Hemolysin Proteins; C030956:insecticidal crystal protein, Bacillus Thuringiensis