转基因水稻Bt汕优63种植两年对土壤线虫群落的影响

应用生态学报 ›› 2012, Vol. 23 ›› Issue (11): 3065-3071.

转基因水稻Bt汕优63种植两年对土壤线虫群落的影响

李修强^1,2,陈法军³,刘满强^1**,陈小云¹,胡锋¹

(¹南京农业大学资源与环境科学学院土壤生态实验室, 南京 210095; ²南京白云化工环境监测有限公司, 南京 210047; ³南京农业大学植物保护学院, 南京 210095)

出版日期:2012-11-18 发布日期:2012-11-18

Effects of two years planting transgenic Bt rice (BtSY63) on soil nematode community.

LI Xiu-qiang^1,2, CHEN Fa-jun³, LIU Man-qiang¹, CHEN Xiao-yun¹, HU Feng¹

(¹Laboratory of Soil Ecology, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China; ²Nanjing Baiyun Chemical Industry Environmental Monitoring Co. Ltd, Nanjing 210047, China; ³College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China)

Online:2012-11-18 Published:2012-11-18

摘要/Abstract

摘要： 通过连续2年的大田试验，对转基因水稻Bt汕优63(BtSY63)及其亲本汕优63(SY63)种植下大田土壤线虫数量、营养类群组成、生态指标和群落组成进行对比分析.结果表明： BtSY63和SY63种植下土壤线虫数量均随种植时间发生明显波动，但两者间无显著差异；与SY63相比，BtSY63种植下捕杂食线虫百分比和Shannon多样性指数出现了短暂的增加，但仅在个别时间差异显著；非度量多变量排序(nMDS)分析表明，BtSY63和SY63种植下土壤线虫群落组成无显著差异.可见，大田BtSY63种植2年对土壤线虫群落的影响不显著.

Abstract: A two-year field experiment was conducted to evaluate the effects of planting transgenic Bt rice (BtSY63) and its nearisogenic nonBt rice (SY63) on the soil nematode abundance, trophic group composition, ecological indices, and community structure. With the planting of BtSY63 and SY63, the soil nematode abundance changed obviously with sampling time, but had no significant difference between planting BtSY63 and SY63. Only at specific sampling time, the percentage of omnivorepredators and the Shannon diversity index of nematode community under the planting of BtSY63 were significantly higher than those under the planting of SY63. The nonmetric multidimensional scaling (nMDS) of nematode community revealed that no significant difference was observed in the nematode community composition between planting BtSY63 and SY63 across all sampling times. In conclusion, two years planting BtSY63 had no deleterious effects on the soil nematode community.

李修强1,2,陈法军3,刘满强1**,陈小云1,胡锋1. 转基因水稻Bt汕优63种植两年对土壤线虫群落的影响[J]. 应用生态学报, 2012, 23(11): 3065-3071.

LI Xiu-qiang1,2, CHEN Fa-jun3, LIU Man-qiang1, CHEN Xiao-yun1, HU Feng1. Effects of two years planting transgenic Bt rice (BtSY63) on soil nematode community.[J]. Chinese Journal of Applied Ecology, 2012, 23(11): 3065-3071.