CAJ | 학술논문

从宁夏灵武白芨滩国家级自然保护区不同土壤类型、不同优势植被的6个样区采集的健康苦豆子中，分离得到153株内生放线菌．同一植株不同组织中，内生放线茵数量以根部最多，其次为种子，叶部最少；淡灰钙土中苦豆子内生放线菌数量比风沙土中多．鉴定结果表明：苦豆子内生放线菌以链霉菌属（Stredtomvc）和诺卡氏菌属（Nocardia）较多；通过皿内对峙培养，对153株苦豆子内生放线菌进行抑茵活性测定，拮抗菌株数占总菌株数的90．2％，个别菌株抑菌带宽度达到20mm以上．
종저하령무백급탄국가급자연보호구불동토양류형、불동우세식피적6개양구채집적건강고두자중，분리득도153주내생방선균．동일식주불동조직중，내생방선인수량이근부최다，기차위충자，협부최소；담회개토중고두자내생방선균수량비풍사토중다．감정결과표명：고두자내생방선균이련매균속（Stredtomvc）화낙잡씨균속（Nocardia）교다；통과명내대치배양，대153주고두자내생방선균진행억인활성측정，길항균주수점총균주수적90．2％，개별균주억균대관도체도20mm이상．
The health Sophora alopecuroides which separated 153 endophytic actinomyces were collected from 6 different sample of different soil types and different preponderant vegetations in Baijitan national nature reserve in Ningxia. In different originations of same plant, the number in root was the most endophytic actinomyces, then in stems, and the least in leaves. The number of endophytic actinomyces from S. alopecuroides, which in sandy soil is more than in sandy soil. The result shows that the Streptomyces and Nocardia were the main genera of endophytic actinomyces. By confrontation training in dish, the antimicrobal activity was tested on 153 S. alopecuroides's endophytic actinomyces, the antagonistic strains number of 6 sample areas were 90. 2%, the inhibition zone of individual strains reached up to 20 ram.