从滨海当归Angelica keisdei Koidz.的根中分到的黄当归酚(Xanthoangelol,Ⅰ)和4-羟基鱼藤素4-Hydroxyderricin,Ⅱ)具有抗革兰氏阳性病原菌的活性。Ⅰ对藤黄微球菌IFO-12708的MIC为0.76μg/ml,其活性强度与作标准的庆大霉素相等。虽然这两种查耳酮对植物病原菌的活性低于链霉素,但两者都具有抑制其生长的作用。从滨海当归得到的I的抗菌活性是首次报道,Ⅱ对植物病 From the roots of Angelica keisdei Koidz., Angelica keisdei Koidz., yellow angelica phenol (Xanthoangelol (I) and 4-hydroxydeguetin 4-Hydroxyderricin, II) had anti-Gram-positive pathogenic activity. The MIC of I to M. luteus IFO-12708 was 0.76 μg/ml, and its activity intensity was equal to that of standard gentamicin. Although these two chalcones are less active against plant pathogens than streptomycin, both have the effect of inhibiting their growth. The antibacterial activity of I obtained from Angelica sinensis was reported for the first time, and II was against plant diseases.