against F. columnare BioMed (IC50 of 9.2 and 3.5 mg/l, resp.). These IC50 results were lower than those obtained for wogonin against F. columnare ALM-00-173 and F. columnare BioMed (28.4 and 5.4 mg/l, resp.). However, based on MIC results, none of the compounds evaluated in this study were as active as wogonin (MIC 0.3 mg/l for each F. columnare isolate). Further modification of the wogonin structure
在我们不断探索发现
天然产物和基于
天然产物的化合物以控制引起黄channel鱼(Ictalurus punctatus)柱状菌病的细菌Flavobacterium columnare的过程中,我们合成了
黄酮和查耳
酮类似物,并评估了这些化合物以及使用快速
生物测定法,从天然来源中提取
黄酮类化合物,以抵抗其对柱状双歧杆菌的两种分离物(ALM-00-173和BioMed)的抗菌活性。黄
酮类黄绿素(1a),5,7-二羟基-4'-甲氧基
黄酮(11),
异鼠李素(26),
木犀草素(27)和
生物素A(29)和
查尔酮衍
生物8b对F. columnare具有较强的抗菌活性。基于最小抑制浓度(MIC)的ALM-00-173。
黄酮类化合物1a,8、11、13(5,4'-二羟基-
7-甲氧基黄酮),26,根据MIC结果,29和29对F. columnare BioMed表现出强大的抗菌活性。24小时50%抑制浓度(IC50)结果表明,27和29种化合物对F