摘要
在萨氏与虫粉两种培养基以及１％葡萄糖液和２％虫尸滤液两种营养液中，对４４株球孢白僵菌的菌落形态、菌丝生长、产孢量、孢子萌友情况以及孢子在不同湿度下储存一年的发芽率、抗紫外线能力和生物测定等方面进行了试验。结果表明：菌落形态可分为三种类型；在两种培养基上，菌丝生长特别快的反而产孢量低，或不产孢；不同湿度下存放一年，湿度为３３％和５５％时分别有７３．８％和８５．９％的菌株不发芽，当温度为７６％和９２％时供试菌株全部不发芽；２％虫液中孢子的萌发速度快，萌发率高；经紫外线处理后９１．３％的菌株菌落生长半径减小；有５９．４％的菌株僵虫率在５１％以上。
Experiment was carried on biological featu res of 44 isolates of Beauveriabassiayia on SDAY medium,cadaver powder and the nutrient liquid of 1% dextrose plus 2%cadaver powder.Result showed that:①Colony shape could be divided into three types,②Mycelia of the isolates grew varying rapidly,and sporulation was poor.③ During storage,humidity played an important role on viability of the conidia. 73.8%and 85.9% conidia notgerminate respectively when humidity was at 33%and 55%. All strains did not germinatewhen humidity was above 76%. ④ Conidia in nutrient liquid of 2%cadaver powder germi-nated rapidly,with high germination rate. ⑤ Growth radius of 91.3%strains decreased af-ter treated with ultraviolet light.⑥ 59.4% strains caused mortalities above 51% of Masson's pine caterpillar, Dendrolimus punctatus.
出处
《安徽农业大学学报》
CAS
CSCD
1996年第3期297-302,共6页
Journal of Anhui Agricultural University
关键词
球孢白僵菌
菌落形态
产孢量
生物学特性
Beauveria bassiana Colony shape Mycelial growth Sporulation Ger-mination
