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| Effect of Glyphosate-tolerant Soybean on Diversity of Soil Nematodes |
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| KeyWord:glyphosate-tolerant soybean; soil nematode; ecological index; redundancy analysis（RDA） |
| Author Name | Affiliation | | YANG Zhi-guo | College of Life Science, Shanxi Agricultural University, Taigu 030801, China
Key Laboratory of Original Agro-Environment Quality of Ministry of Agriculture/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China | | ZHAO Jian-ning | Key Laboratory of Original Agro-Environment Quality of Ministry of Agriculture/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China | | LI Gang | Key Laboratory of Original Agro-Environment Quality of Ministry of Agriculture/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China | | XIU Wei-ming | Key Laboratory of Original Agro-Environment Quality of Ministry of Agriculture/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China | | ZHANG Qiu-yan | College of Life Science, Shanxi Agricultural University, Taigu 030801, China
Key Laboratory of Original Agro-Environment Quality of Ministry of Agriculture/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China | | CHANG Hong | College of Life Science, Shanxi Agricultural University, Taigu 030801, China | | YANG Dian-lin | Key Laboratory of Original Agro-Environment Quality of Ministry of Agriculture/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China |
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| Abstract: |
| Transgenic plants may affect microbial community structure and functions in soil ecosystems. A pot culture experiment was conducted to study the responses of soil nematodes to herbicide-tolerant soybean by analyzing the abundance, trophic group composition, ecological indices of soil nematodes and the relationship between soil environmental factors and soil nematode communities using non-transgenic soybean Z13 as the control. Nematodes in the rhizosphere of herbicide-tolerant soybean M88 and non-transgenic soybean Z13 were separated by the Baermann tray method and identified to genus level using an inverted compound microscope. Twenty-three genera and twenty-one genera were found in the rhizosphere of the Z13 and M88, respectively. The average abundance of nematodes was（1 143.42 ± 135.04） individuals per 100 g dry soil for the M88, whereas （756.83 ± 141.33） individuals per 100 g dry soil for the Z13. They were significantly different（P<0.05）. Compared with the Z13, the M88 significantly increased the relative abundance of Thorneella genus（P<0.01）. Although the maturity index（MI） and structure index（SI） of free-living nematodes were significantly higher in the M88 than in the Z13, but no significant differences were found in Shannon-Wiener diversity index H′, Genus richness Index GR and Trophic diversity Index TD between the M88 and Z13. The redundancy analysis（RDA） diagram showed that the functional guilds Om4 had significant positive correlation with organic matter（OM）, but significant negative correlation with nitrate nitrogen（NN）. These results suggest that herbicide-tolerant soybean M88 has no significant effects on the diversity of soil nematode community. |
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