文献类型： 外文期刊
作者： Yang, Zhiguo 1 ; Wang, Lili 1 ; Yang, Dianlin 1 ; Li, Gang 1 ; Xiu, Weiming 1 ; Liu, Hongmei 1 ; Lai, Xin 1 ; Wang, Hui 1 ;
作者机构： 1.Minist Agr, Key Lab Original Agroenvironm Qual, Tianjin Key Lab Agroenvironm & Agroprod Safety, Agroenvironm Protect Inst, Tianjin 300191, Peoples R China
2.Shanxi Acad Agr Sci, Farm Prod Storage & Freshening Inst, Taiyuan 030031, Shanxi, Peoples R China
3.Shanxi Agr Univ, Coll Life Sci, Taigu 030801, Peoples R China
关键词： Soil nematode; Herbicide tolerant soybean; Ecological indices; Nematode community structure analysis
期刊名称：FRESENIUS ENVIRONMENTAL BULLETIN （ 影响因子：0.489； 五年影响因子：0.479 ）
ISSN： 1018-4619
年卷期： 2018 年 27 卷 5A 期
页码：
收录情况： SCI
摘要： Nematodes are increasingly used as bioindicators to evaluate the dynamics of soil quality in cropland under different agricultural managements, including planting of genetically modified (GM) crops. A pot culture experiment was conducted to study the responses of soil nematode communities to herbicide-tolerant GM soybean GTS 40-3-2 (GTS) and conventional soybean Zhonghuang 13 (Z13). Nematode ecological indices and nematode community structure analyses were used to assess differences between treatments. Thirty soil nematode genera belonging to nine functional guilds were identified in the pot experiment. Significant differences regarding the relative abundances of bacterivores, fun-givores and the values of nematode channel ratio (NCR) were observed between GM and non-GM soybean varieties. Some nematode trophic groups and ecological indices were transiently significantly different between GM and non-GM treatments. Compared with the differences between sampling times, these transient differences were relatively small. From nematode faunal analysis, soil food webs were trending towards stable composition and increasing similarity between treatments with progressive duration of the pot experiment. Nematode community structure analysis indicated nematode genus composition differed by sampling time and soybean variety. The fungivore genus Aphelenchoides, plant parasite genus Heterodera and bacterivore genera Eucephalobus and Mesorhabditis were the main genera contributing to the differences between Z13 and GTS treatments.
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