The three chemical mutagens were mitomycin C(MMC,DNA crosslinker),bleomycin(BLM,radiometric agent),methyl methanesulfonate(MMS,alkylating agent).

• 3种化学诱变剂是丝裂霉素C(MMC ,DNA交联剂 )、博来霉素 (BLM ,似X线剂 )、甲基甲烷磺酸酯 (MMS ,烷化剂 )。