CAJ | 학술논문

从沾化百草枯污染土壤中富集、筛选、分离出3株具有百草枯降解能力的菌株，进一步研究了这3株优势菌的生理生化特征及最佳生长条件。通过形态学观察和生理生化指标的测定，对这3株菌种进行鉴定，初步确定：BCK-1为颤螺菌属，BCK-2为梭菌属，BCK-3为芽孢盐杆菌属。这3株菌株在37℃培养3d后，发现这3株菌株（BCK-1，BCK-2，BCK-3）对百草枯的降解率分别为79.35%、80.26%和86.22%。3株优势菌种可应用于受百草枯污染的菌源土壤的生物恢复。
종첨화백초고오염토양중부집、사선、분리출3주구유백초고강해능력적균주，진일보연구료저3주우세균적생리생화특정급최가생장조건。통과형태학관찰화생리생화지표적측정，대저3주균충진행감정，초보학정：BCK-1위전라균속，BCK-2위사균속，BCK-3위아포염간균속。저3주균주재37℃배양3d후，발현저3주균주（BCK-1，BCK-2，BCK-3）대백초고적강해솔분별위79.35%、80.26%화86.22%。3주우세균충가응용우수백초고오염적균원토양적생물회복。
Three strains were isolated from the Zhanhua paraquat contaminated soil,and optimal growth con-ditions were further studied on the physiological and biochemical characteristics of the three dominant bac-teria. The Determination by morphological observation,physiological and biochemical indicators were identi-fied,these three strains are initially identified BCK-1 Oscillosporia Chatton&Perard,BCK-2 for Clostridium Prazmowski,BCK-3 Sporohalobacter Orenetal. These three strains at 37℃ after 3d found three strains (BCK-1,BCK-2,BCK-3)and the degradation rate of paraquat were 79.35%,80.26% and 86.22%,respective-ly. The three dominant strain can be applied to paraquat contaminated bacteria source soil biological recov-ery.