Bacillus subtilis 230(BS_(230)) was selected from parent strain Bacillus subtilis 1 (BS1), which was maintained in laboratory, via natural selection, U. V. radiation and DES treatment.

• 枯草杆菌230(BS_(230))是从实验室保存的枯草杆菌(BS_1)经自然选育,紫外线照射和硫酸二乙酯处理而得到的变株。