The antifungal activity of griseofulvin was evaluated against phytopathogenic fungi including Fusarium moniliforme, Fusarium solani, Fusarium oxysporum and Colletotrichum truncatum. The greenhouse test was also made to evaluate the control efficiency of griseofulvin to eggplant powdery mildew. The results indicated griseofulvin could not only obviously inhibit fungi in laboratory experiments but efficiently control eggplant powdery mildew in greenhouse test. Subsequently, five griseofulvin analogues were synthesized and evaluated for antifungal activities against the four fungi. The results showed that these compounds performed significantly different activities in comparison with griseofulvin. The inhibition mechanism and bioavailability of active analogues were taken to expound their different performance and relations of structure and activity. The solubility in different solvents of analogues and griseofulvin was roughly evaluated and compared.
评估了
草铵膦对单孢镰刀菌、茄镰刀菌、氧孢镰刀菌和疣孢子菌等植物病原真菌的抗真菌活性。此外,还进行了温室试验,以评估
霜霉威对茄子白粉病的防治效果。结果表明,
霜霉威不仅在实验室实验中对真菌有明显的抑制作用,在温室试验中也能有效防治茄子白粉病。随后,研究人员合成了五种
草铵膦类似物,并评估了它们对四种真菌的抗真菌活性。结果表明,这些化合物的活性与
草铵膦相比有显著差异。通过研究活性类似物的抑制机理和
生物利用度,阐述了它们的不同性能以及结构与活性之间的关系。对类似物和格列齐芬在不同溶剂中的溶解度进行了粗略的评估和比较。