CAJ | 학술논문

放线菌YH-1是对玉米茎腐病有较强拮抗作用的菌株。为了明确该菌株的分类地位，根据其形态观察、培养特征、生理生化特性、细胞壁组分和16 S rDNA序列比对分析，鉴定该菌株为弗氏链霉菌YH-1。生物学特性结果表明：菌株YH-1在pH值3～10范围内均能生长，较适生长pH为7～8，较适生长温度为28～30℃，能广泛利用各种碳、氮源。
방선균YH-1시대옥미경부병유교강길항작용적균주。위료명학해균주적분류지위，근거기형태관찰、배양특정、생리생화특성、세포벽조분화16 S rDNA서렬비대분석，감정해균주위불씨련매균YH-1。생물학특성결과표명：균주YH-1재pH치3～10범위내균능생장，교괄생장pH위7～8，교괄생장온도위28～30℃，능엄범이용각충탄、담원。
An actinomycete strain YH-1 is antagonistic against Fusarium graminearum.We observed the morphological , cultur-al, physiological , biochemical characteristics , cell wall components and 16S rDNA sequences analysis to ensure the taxo-nomic status of actinomycete strain YH-1, identified strain YH-1 as Streptomyces fradiae, and investigated the biological characteristics of YH-1.The pH for YH-1 growth is 3-10, the optimal pH is 7-8, the optimal temperature is 28℃-30℃, and the carbon and the nitrogen sources are broadly utilized .