Screening of Anti-Biofilm Compounds from Marine-Derived Fungi and the Effects of Secalonic Acid D on Staphylococcus aureus Biofilm

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 中科院海洋生物资源可持续利用重点实验室

	Screening of Anti-Biofilm Compounds from Marine-Derived Fungi and the Effects of Secalonic Acid D on Staphylococcus aureus Biofilm
	Wang, J; Nong, XH; Zhang, XY; Xu, XY; Amin, M; Qi, SH
刊名	JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY
	2017
卷号	27 期号:6 页码:1078-1089
关键词	Anti-biofilm activity Staphylococcus aureus marine natural product secalonic acid D mechanism of action
通讯作者	shuhuaqi@scsio.ac.cn
中文摘要	Biofilm formation of Staphylococcus aureus is one of its mechanisms of drug resistance. Anti-biofilm screening of 106 compounds from marine-derived fungi displayed that 12 compounds inhibited S. aureus biofilm formation by > 50% at the concentration of 100 mu g/ml, and only secalonic acid D (SAD) and B inhibited by > 90% at 6.25 mu g/ml without inhibiting cell growth after 24-h incubation. Meanwhile, it was found that the double bond between C-1 and C-10 of citrinin derivatives and the C-C connection position of two chromone monomers may be important for their anti-biofilm activities. Moreover, SAD slightly facilitated biofilm eradication and influenced its architecture. Furthermore, SAD slowed the cell growth rate in the preceding 18-h incubation and differentially regulated transcriptional expression of several genes, such as agr, isaA, icaA, and icaD, associated with biofilm formation in planktonic and biofilm cells, which may be the reason for the anti-biofilm activity of SAD. Finally, SAD acted synergistically against S. aureus growth and biofilm formation with other antibiotics. These findings indicated that various natural products from marine-derived fungi, such as SAD, could be used as a potential biofilm inhibitor against S. aureus.
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/16296]
专题	南海海洋研究所_中科院海洋生物资源可持续利用重点实验室
推荐引用方式 GB/T 7714	Wang, J,Nong, XH,Zhang, XY,et al. Screening of Anti-Biofilm Compounds from Marine-Derived Fungi and the Effects of Secalonic Acid D on Staphylococcus aureus Biofilm[J]. JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY,2017,27(6):1078-1089.
APA	Wang, J,Nong, XH,Zhang, XY,Xu, XY,Amin, M,&Qi, SH.(2017).Screening of Anti-Biofilm Compounds from Marine-Derived Fungi and the Effects of Secalonic Acid D on Staphylococcus aureus Biofilm.JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY,27(6),1078-1089.
MLA	Wang, J,et al."Screening of Anti-Biofilm Compounds from Marine-Derived Fungi and the Effects of Secalonic Acid D on Staphylococcus aureus Biofilm".JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY 27.6(2017):1078-1089.