铜绿假单胞菌生物膜异质性的定量观察。
Quantitative observations of heterogeneities in Pseudomonas aeruginosa biofilms.
作者信息
Stewart P S, Peyton B M, Drury W J, Murga R
机构信息
Center for Interfacial Microbial Process Engineering, College of Engineering, Montana State University, Bozeman 59717.
出版信息
Appl Environ Microbiol. 1993 Jan;59(1):327-9. doi: 10.1128/aem.59.1.327-329.1993.
Abstract
Heterogeneity in a Pseudomonas aeruginosa biofilm was quantified by measuring distributions of thickness in biofilm samples and a distribution of particle sizes in effluent samples. The mean steady-state thickness was approximately 33 microns, but individual measurements ranged from 13.3 to 60.0 microns. Particles exceeding 100 microns3 were observed in the reactor effluent. The results reveal a rough biofilm surface and indicate that most biomass detaches in the form of multicellular particles.
摘要
通过测量生物膜样本中的厚度分布以及流出物样本中的颗粒大小分布，对铜绿假单胞菌生物膜的异质性进行了量化。平均稳态厚度约为33微米，但个别测量值范围为13.3至60.0微米。在反应器流出物中观察到超过100微米³的颗粒。结果显示生物膜表面粗糙，并表明大多数生物量以多细胞颗粒的形式脱落。
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