丹皮酚
阴沟肠杆菌
生物膜
肺炎克雷伯菌
微生物学
牡丹
抗菌活性
生物
化学
细菌
大肠杆菌
生物化学
医学
替代医学
遗传学
病理
基因
作者
Weidong Qian,Xinchen Li,Min Yang,Gennian Mao
出处
期刊:Biofouling
[Informa]
日期:2021-07-03
卷期号:37 (6): 666-679
被引量:10
标识
DOI:10.1080/08927014.2021.1955249
摘要
Paeonol, the active ingredient of Paeonia lactiflora root bark, is widely used in traditional Chinese medicine. Few studies have reported the antibacterial activity of paeonol against bacterial pathogens. In this study, the antibacterial and anti-biofilm performance of paeonol against Klebsiella pneumoniae and Enterobacter cloacae was investigated as well as its mechanisms of action. Paeonol effectively inhibited the growth of K. pneumoniae and E. cloacae with a minimum inhibitory concentration of 64 μg ml−1 and it was shown to disrupt the integrity of bacterial cell membranes, and alter cell morphology. Moreover, paeonol exhibited a potent inhibitory effect against adhesion and biofilm formation by K. pneumoniae and E. cloacae. In particular, paeonol efficiently compromised cells within biofilms, and dispersed mature biofilms. Therefore, the present study suggests that paeonol is a promising alternative antibacterial and anti-biofilm agent for combating infections caused by planktonic and biofilm cells of K. pneumoniae and E. cloacae.
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