CAJ | 학술논문

[目的]研究东乡普通野生稻(Oryza rufipogon Griff.)根际微生物群落特征.[方法]采用氯仿熏蒸浸提法测定根系微生物生物量碳、氮;采用平板稀释培养法测定群落组成;采用最大或然计数法测定微生物生理群.[结果]东乡野生稻根际微生物生物量碳、氮平均值分别为83.02和16.98mg/kg(土),较普通栽培稻低;根际可培养微生物中细菌>放线菌>真菌;氮素生理群中氨化细菌>好氧固氮菌>反硝化细菌>嫌气性固氮菌>硝化细菌>亚硝化细菌.[结论]东乡野生稻根际微生物群落组成与普通栽培稻相比有差异.
[목적]연구동향보통야생도(Oryza rufipogon Griff.)근제미생물군락특정.[방법]채용록방훈증침제법측정근계미생물생물량탄、담;채용평판희석배양법측정군락조성;채용최대혹연계수법측정미생물생리군.[결과]동향야생도근제미생물생물량탄、담평균치분별위83.02화16.98mg/kg(토),교보통재배도저;근제가배양미생물중세균>방선균>진균;담소생리군중안화세균>호양고담균>반초화세균>혐기성고담균>초화세균>아초화세균.[결론]동향야생도근제미생물군락조성여보통재배도상비유차이.
[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±18.23 mg/kg soil and 16.98±2.54mg/kg 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.