Effect of Ground Leaves from Transgenic Bt Cotton on the Functional Diversity of Soil Microbial Community
The effect of ground leaves of transgenic Bt cotton embedded into soil on the functional diversity of soil microbial community was assessed using Biolog GN2 plate.The results showed that the values of AWCD (average well color development) of all carbon sources utilized on 10th and 40th day was significantly increased.It indicated that the metabolisms and activities of soil microbial community were promoted after the ground leaves from transgenic Bt cotton were embedded into soil.The dominance utilization order for soil microbial community of carbohydrates,amines,amino acid and carboxylic acid carbons significantly changed after the ground leaves from transgenic Bt cotton were embedded into soil.It was demonstrated that the structure and functional diversity of soil microbial community changed.There were no significant effects on the utilization of polymers and miscellaneous carbons for soil microbial community after the ground leaves from transgenic Bt cotton were embedded into soil.But the utilization of carbohydrates,amines and amino acid carbons significantly increased on the 10th and 40th day,and the utilization of carboxylic acid carbons significantly reduced on the 10th day for soil microbial community.It concluded that the microorganisms related to the degradation of carbohydrate,amines and amino acid carbon might be the major soil microbial groups influenced by the ground leaves from transgenic Bt cotton.
transgenic Bt cottonground leaves embedded into soilcarbon resourcesfunctional diversity of soil microbial community
国家科技期刊平台
NSTL
万方数据
维普
