Changes in soil microbial community structure associated with two types of genetically engineered plants analyzing by PLFA
Xue, K; Luo, HF; Qi, HY; Zhang, HX
刊名JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
2005
卷号17期号:1页码:130-134
关键词Geps Microbial Community Pca Plfa Gc -mis
英文摘要With the rapid expansion of GEPs (genetically engineered plants), people are more and more concerned about the ecological risks brought by their release. Assessing the effect of GEPs on soil microbial ecology is indispensable to study their ecological risks. In our study, the phospholipids fatty acid(PLFA) method was used to analyze the microbial community of soil samples collected from fields with two types of GEPs-Bt transgenic corn and PVY ( potato virus Y) cell protein gene transgenic potato. The principal components analysis (PCA) showed all controls were on the right of related GEPs samples along the PC1 (the first principal component) axis, which means a decrease of fungi in soils with genetically engineered crop since most of PLFAs that are strongly positively correlated with PC1 represent fungi. For samples collected from Bt transgenic cornfield, the ratios of gram-positive to gram-negative bacteria were less than those of controls. For samples of transgenic potato field, these ratios were lower than those of controls when soils were collected from deep layer (20-40 cm), but were higher when soils collected from surface layer(0-20 cm), For soils collected from 0-20 cm, the ratios of fungi to bacteria for all GEPs samples were at the same level. So were such rations for all controls. Changes of soil microbial community in two types of GEPs fields were detected in our study, but the causes and more information still needs further study.
学科主题Environmental Sciences & Ecology
WOS研究方向Environmental Sciences & Ecology
WOS记录号WOS:000226147000028
内容类型期刊论文
源URL[http://ir.rcees.ac.cn/handle/311016/23364]  
专题生态环境研究中心_中国科学院环境生物技术重点实验室
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GB/T 7714
Xue, K,Luo, HF,Qi, HY,et al. Changes in soil microbial community structure associated with two types of genetically engineered plants analyzing by PLFA[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2005,17(1):130-134.
APA Xue, K,Luo, HF,Qi, HY,&Zhang, HX.(2005).Changes in soil microbial community structure associated with two types of genetically engineered plants analyzing by PLFA.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,17(1),130-134.
MLA Xue, K,et al."Changes in soil microbial community structure associated with two types of genetically engineered plants analyzing by PLFA".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 17.1(2005):130-134.
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