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Position: Home > Articles > Effects of transgenic Bt maize on soil microbial biomass carbon and nitrogen Grassland and Turf 2011,31 (3) 35-39

转Bt基因玉米对土壤微生物量碳氮的影响

作  者：
刘玲;赵建宁;王生荣;杨殿林;李刚;娜布其;娜日苏
单  位：
甘肃农业大学草业学院/草业生态系统教育部重点实验室/中-美草地畜牧业可持续发展研究中心/甘肃省草业工程实验室;农业部环境保护科研监测所/农业部转基因生物生态环境安全监督检验测试中心
关键词：
转Bt基因玉米;土壤微生物量碳氮;根箱
摘  要：
利用三室根箱装置获得玉米生长室(S1)、根际土(S2)、非根际土(S3)3个不同根区土壤,研究了转基因玉米Bt11及其非转基因亲本玉米播种后40,50和60 d各根区土壤微生物量碳、氮的变化。结果表明,转Bt基因玉米播种后40 d各根区土壤微生物量碳与非转基因亲本玉米相比无显著差异,土壤微生物量氮显著升高;播种后50 d土壤微生物量碳、氮均显著高于亲本;播种后60 d转Bt基因玉米S1根区土壤微生物量碳、氮含量显著降低,S2根区土壤微生物量碳较亲本玉米显著下降,微生物量氮则显著升高,S3根区土壤微生物量碳、氮均高于亲本玉米。转Bt基因玉米土壤微生物量碳氮比在各采样时期均与亲本存在差异,依玉米生长时期和根区的变化而不同。
译  名：
Effects of transgenic Bt maize on soil microbial biomass carbon and nitrogen
作  者：
LIU Ling1,2,ZHAO Jian-ning2,WANG Sheng-rong1,YANG Dian-lin2,LI Gang2,NA Bu-qi2,3,NA Ri-su2,3(1.College of Pratacultural Science,Gansu Agricultural University/Key Laboratory of Grassland Ecosystem,Ministry of Education/Sino-U.S.Centers for Grazingland Ecosystem Sustainability/Pratacultural Engineering Laboratory of Gansu Province,Lanzhou 730070,China;2.Agro-Environmental Protection Institute,Eco-safety Supervision,Inspection &Testing Center of Genetically Modified Organisms,Ministry of Agriculture,Tianjin 300191;3.Inner Mongolia Normal University,Institute of Life Science and Technology,Hohhot 010022)
关键词：
transgenic Bt maize;soil microbial biomass C and N;rhizobox
摘  要：
Three-room rhizobox method were used to collect soil samples from three different root zones of maize growth room(S1),rhizosphere(S2) and non-rhizosphere(S3) respectively.The changes of content of soil microbial biomass C and N at 40 d、50 d and 60 d after sowing transgenic Bt maize and its parental maize without transgenic were studied.The results showed that the difference of soil microbial biomass C in three different root zones between transgenic Bt maize and non transgenic maize was not significant at 40 days,but the difference of microbial biomass N wais significant.The difference of soil microbial biomass C and N of Bt maize and non transgenic maize were significant at 50 d.At 60 days,the soil microbial biomass C and N of Bt maize significantly decreased in S1 root zone,the soil microbial biomass C decreased and soil microbial biomass N increased in S2 root zone of Bt maize,both of soil microbial biomass C and N in S3 root zone of Bt maize were higher than non transgenic maize.The ratio of soil microbial biomass C/N was significant difference between transgenic Bt maize and the parental maize and it changed according to root zones and growth period.

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