摘要
对采自海南、广东、广西及云南4省(区)的27株香蕉炭疽病菌[Colletotrichum musae(Berk.&Curt.)Arx]进行了致病性、培养性状、生物学特性及对多菌灵敏感性等方面的比较研究。结果表明,不同菌株的致病性,培养性状包括菌落形态、产孢量及孢子大小对多菌灵的敏感性等均存在很大差异,但相互间无相关性,也与采集地无关,不同菌株的生物学特性变化虽然有一定的差异,但变化规律基本一致,该菌最适的培养温度为28～30℃,最适pH为5～7,最适的碳源为香蕉果皮提取物,最适氮源为营养肉汤、牛肉浸膏、酵母浸膏、蛋白胨,12h光暗交替培养对菌丝体生长最有利。
An analysis was made of the pathogenicity, culture characteristics and biological characteristics of 27 isolates of Colletotrichum musae, as well as their sensitivity to Carbendazim. The results showed that they were significantly different in pathogenicity, culture characteristics including colony morphology, quantum of spore-production and spore size, and the sensitivity to Carbendazim, but they were not correlated with each other, even not with the sites where the isolates came from. All the 27 isolates were somewhat different in biological characteristics, but there was no difference in the changes of their biological characteristics. The optimum temperature for mycelial growth was found to be 28-30 ℃, and the optimum pH value 5-7. The mycelia grew best on the media with banana pericarp as carbon source and with nutrient broth, beef extract, barmene and peptone as nitrogen source. Alternative culture for 12 h under dark and light was best for mycelial growth.
出处
《热带作物学报》
CSCD
2007年第2期87-91,共5页
Chinese Journal of Tropical Crops
基金
科技部农业微生物菌种资源整理
整合及共享试点项目(2004DK30560-8)
