摘要： 选用两种植物病原菌毒素 AP-毒素(Alternaria porii毒素)、AM-毒素(Alternaria mali毒素)和10种医用抗菌素:青霉素、盐酸林可霉素、白霉素、氯霉素、头孢唑林钠、甲硝唑、制霉菌素、复方磺胺甲恶唑、氟哌酸、利福平,研究它们对棉花黄萎病菌(Verticillium dahliae)、棉花枯萎病菌(Fusarium oxysporum)、玉米小斑病菌(Heliminthosporium maydis)、梨轮纹病菌(Macrophomakuwatsukai)、桃黑斑病菌(Alternaria alternata)、苹果斑点落叶病菌(Alternaria mali)的抑制作用。结果发现,在两种植物病原菌毒素和各种病原菌的相互作用中,AP-毒素和AM-毒素对被测病原菌都有不同程度的抑制作用,且AM-毒素的抑制活性高于AP-毒素的抑制活性,抑制率最高可达79.08％。在10种医用抗菌素中,制霉菌素和复方磺胺甲恶唑对被测植物病原菌有较好的抑制作用,且制霉菌素的抑制效果优于复方磺胺甲恶唑。其它医用抗菌素对所试病原菌也有不同程度的抑制作用,但在所试浓度范围内抑制率很低。

关键词: 抗菌素, 毒素, 植物病原菌, 抑制作用

Abstract: In this paper, some experiments with plant pathotoxin and medical antibiotics against plant pathogen in the laboratory were concerned about. Two kinds of plant pathotoxins, i. e. AP-toxin, AM-toxin and ten kinds of medical antibiotics, i. e. sodium penicillium, lincomycin hy-drochloride, kitasamycin tartrate, chloromycetin, sodium cef azolin, metronidazole, nysbungini, com-pound sulf amethoxazole, norf loacinum and rifampicin were examined. The results showed that the Macrophoma kuwatsukai, Alternaria alternata , Alternaria mali, Helminthosporium maydis , Verticillium dahliae , Fusarium oxysporum were inhibited clearly by AP-toxin, AM-toxin, nys-bungini and compound sulfamethoxazole. The inhibiting effect of AM-toxin was stronger than AP-toxin. And the inhibiting effect of nysbungini was stronger than compound sulfamethoxazole.

Key words: Antibiotic, Toxin, Pathogen, Inhibiting effect

中图分类号: 

• S482.28