摘要
2006-2007年,采用4个转CpTI基因棉花材料及其受体,于棉花不同生育期取根际土壤,研究了转CpTI基因对棉花根际细菌、放线菌及真菌数量的影响。结果表明:转CpTI基因及其受体材料根际土壤中细菌、放线菌和真菌的数量均随着棉花的生长发育变化,细菌在棉花的花铃期达到高峰,放线菌和真菌在蕾期至花铃期达到高峰,之后随着棉花的衰老均减少。转CpTI基因对棉花根际土壤中细菌、放线菌和真菌的数量有显著影响,细菌和放线菌的数量均比对应受体材料显著增加,而真菌的数量显著减少;从棉花的不同生育时期看,细菌的数量在苗期和花铃期显著高于受体材料,放线菌在不同时期均显著高于受体材料,尤以苗期和花铃期更明显,而真菌的数量在吐絮期显著低于受体材料。
Widely growing of transgenic plant may be accompanied by ecological effects including changes in plant-associated with micro-flora.People pay more attention to environment risk assessment of transgenic plant.Most researches on Bt cotton have focused on invasiveness,gene flow to indigenous organisms,development of resistance in target pests,and direct or indirect effects on non-target organisms and ecosystem.Some research have focused on the evaluation of ecological effects of Bt cotton on microbial flora.Bu...
出处
《棉花学报》
CSCD
北大核心
2009年第5期366-370,共5页
Cotton Science
基金
国家"十一五"支撑计划项目(2006BAD08A07)
