Studies on the microbial community in the rhizosphere soil of Dongxiang wild rice | 涓涔℃绋绘归寰╃兢界瑰绌
2011
Dai Fei, Jiangxi Normal University, Nanchang (China), College of Life Sciences | Huang Yunhong, Jiangxi Normal University, Nanchang (China), College of Life Sciences | Peng Weimeng, Jiangxi Normal University, Nanchang (China), College of Life Sciences
[Objective] The aim was to study the characteristics of microbial community in the rhizosphere soil of Dongxiang wild rice (Oryza rufipogon Griff.). [Method]: The microbial biomass carbon and nitrogen was estimated by the chloroform fumigation extraction method; the microbial community composition and Nitrogen cycling microbial functional groups were investigated by the Dilution plate culture method and the most probable number methods respectively. [Result] The microbial biomass carbon and nitrogen, in rhizosphere soil of Dongxiang Wild Rice was 83.02_8.23 mgkg-1 soil and 16.98_.54 mgkg-1 soil, which was lower than that of ordinary cultivated rice; The relationship between the number of culturable microbial groups was bacteria actinomycetes fungi, and the Nitrogen cycling microbial physiological groups was as the following: ammonifying bacteria aerobic azotobacteria denitrobacteria anaerobic azotobacteria nitrobacteria nitrosobacteria. [Conclusion] The microbial community in the rhizosphere soil of Dongxiang Wild Rice was different from that of the ordinary cultivated rice.
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