稀释分离法鉴定嗜鳍黄杆菌

水稻稻瘟病是我国水稻的重要病害．目前，水稻抗瘟性品种的利用和化学农药的使用仍然是防治稻瘟病行之有效的措施，但因抗瘟品种的单一化、稻瘟病菌生理小种遗传的复杂性和致病性的多样性，以及化学农药的毒性和病原茼的抗药性，使得水稻抗瘟性品种和化学农药的使用在生产上都受到一定的限制．为此，水稻稻瘟病的生物防治特别是生物农药的研究与开发是水稻生产可持续发展的需要．本试验用稀释分离法进行拮抗菌株的分离，选择了拮抗效果最好的菌株做形态学及生理生化特征鉴定．通过对菌株SY42的培养性状及生理生化特征的测定，初步鉴定其为嗜鳍黄杆菌．

L.Dilution Isolation Identification of Flavobacterium Fin

At present,the rice-blast-resistant varieties and the use of chemical pesticides is the effective prevention measures blast,But blast resistance of a single species,Magnaporthe grisea genetic complexity and the diversity of pathogenic and toxic chemicals and pathogens resistance rice-blast-resistant varieties and the use of chemicals in production are subject to certain restrictions,for Rice Blast especially biological control research and development of biological pesticides rice production is the need for...