【摘要】 从120个土壤样品检测了11790株芽孢杆菌,其中有81株是产生伴孢晶体的苏芸金芽孢杆菌。它们在生长和对昆虫的致病力上,彼此存在明显差异。从中筛选出了毒力较强的苏芸金芽孢杆菌菌株,从而认为从土壤中分离苏芸金芽孢杆菌有效菌株,是一条新的途径。更多还原

【Abstract】 11790 strains of Bacillus have been examined from 120 soil samples col- lected. There are 81 strains of Bacillus thuringiensis with parasporal crystals. They differ greatly from each other in growth and pathogenicity against in- sects, in Which the selected strains are more toxic. Therefore, it has been considered that isolations of effective strains of Bacillus thuringiensis from the soil is a new way.更多还原