Pronounced effect of the nature of the inoculum on biofilm development in flow systems.

Applied and Environmental Microbiology
Otini KroukampGideon M Wolfaardt

Abstract

Biofilm formation renders sessile microbial populations growing in continuous-flow systems less susceptible to variation in dilution rate than planktonic cells, where dilution rates exceeding an organism's maximum growth rate (micro(max)) results in planktonic cell washout. In biofilm-dominated systems, the biofilm's overall micro(max) may therefore be more relevant than the organism's micro(max), where the biofilm micro(max) is considered as a net process dependent on the adsorption rate, growth rate, and removal rate of cells within the biofilm. Together with lag (acclimation) time, the biofilm's overall micro(max) is important wherever biofilm growth is a dominant form, from clinical settings, where the aim is to prevent transition from lag to exponential growth, to industrial bioreactors, where the aim is to shorten the lag and rapidly reach maximum activity. The purpose of this study was to measure CO(2) production as an indicator of biofilm activity to determine the effect of nutrient type and concentration and of the origin of the inoculum on the length of the lag phase, biofilm micro(max), and steady-state metabolic activity of Pseudomonas aeruginosa PA01 (containing gfp), Pseudomonas fluorescens CT07 (containing gfp), ...Continue Reading

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Citations

Nov 10, 2013·International Journal of Molecular Sciences·Elanna BesterJesse Greener
Oct 15, 2013·Journal of Applied Microbiology·S A BurgessD Lindsay
Apr 26, 2016·Ultrasonics·Evan RonanRaffi Karshafian
Oct 7, 2015·Frontiers in Microbiology·Lindsay M D JacksonGideon M Wolfaardt
May 16, 2019·Journal of Applied Microbiology·Hye-In Jang, Yong-Bin Eom
Dec 14, 2017·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Guangyi ZhangXiaojing Zhang
Apr 12, 2014·Lab on a Chip·Nahid Babaei AznavehJesse Greener
Dec 8, 2020·Frontiers in Microbiology·Tongfu SuLiyou Qiu
Aug 19, 2021·Journal of Materials Science. Materials in Medicine·Kirsten ReddersenCornelia Wiegand

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