目前,世界各国多采用气相色谱法和高压液相色谱法检测农药残留,极少采用生物方法进行检测。日本曾有人用生物检测法对灭瘟素S的残留作过研究,我国尚未见报道。 灭瘟素S是由链霉菌产生的一种农用抗生素,现在我国已能批量生产,并广泛用于防治水稻稻瘟病。灭瘟素S具有较高的毒性,但经脱氨分解后即成无毒的cytomycin。为了确定灭瘟素S在自然界的分解速度,评价其使用安全性,我们采用生物检测法,对灭瘟素在稻田及稻秆和糙米中的残留进行了研究。 At present, many countries in the world use gas chromatography and high pressure liquid chromatography to detect pesticide residues, rarely using biological methods for testing. Some people in Japan have used bioassays to detect the residues of blasticidin S, which has not been reported yet in our country. Blasticidin S is an agricultural antibiotic produced by Streptomyces, and now China has been able to mass production, and is widely used to control rice blast. Blasticidin S has high toxicity, but after deamination decomposition into non-toxic cytomycin. In order to determine the decomposition rate of Aplastic anemia S in nature and evaluate its safety, we used bioassay to study the residues of ATR in paddy field and rice straw and brown rice.