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Related Experiment Video

Updated: Jul 4, 2026

Adherence of Bacteria to Plant Surfaces Measured in the Laboratory

Adherence of Bacteria to Plant Surfaces Measured in the Laboratory

Published on: June 19, 2018

Bacterial adsorption to smooth surfaces: Rate, extent, and spatial pattern.

C H Nelson¹, J A Robinson, W G Characklis

¹SRI International, Menlo Park, California 94025.

Biotechnology and Bioengineering

|December 1, 1985

Summary

Bacterial adsorption rates to surfaces decrease with higher specific growth rates. Pseudomonas sp. 224S showed surface saturation at 0.1% coverage, with cells arranging uniformly, not randomly.

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Last Updated: Jul 4, 2026

Adherence of Bacteria to Plant Surfaces Measured in the Laboratory

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Published on: June 19, 2018

Monitoring Spatial Segregation in Surface Colonizing Microbial Populations

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Published on: October 29, 2016

Biomimetic Materials to Characterize Bacteria-host Interactions

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Published on: November 16, 2015

Area of Science:

Microbiology
Surface Science
Biophysics

Background:

Bacterial adhesion to surfaces is crucial in many environments.
Understanding factors influencing bacterial adsorption is key for controlling biofilms and contamination.
Previous studies have focused on cell concentration, but growth history effects are less understood.

Purpose of the Study:

To investigate how bulk-water bacterial cell concentration and specific growth rate history impact bacterial adsorption rates.
To determine the saturation limits and spatial distribution patterns of adsorbed bacteria on glass surfaces.

Main Methods:

Utilized response surface analysis to study bacterial adsorption.
Employed a pure culture of Pseudomonas sp. 224S in a chemostat and continuous flow reactor.
Exposed bacteria to clean glass surfaces under turbulent flow for six hours.

Main Results:

Adsorption rate showed a linear decrease with increasing specific growth rate history.
Glass surfaces reached saturation with Pseudomonas sp. 224S at approximately 0.1% coverage.
The spatial pattern of adsorbed cells deviated from random, tending towards uniformity.

Conclusions:

Bacterial growth history significantly influences adsorption kinetics.
Surface saturation and non-random spatial arrangement are characteristic of Pseudomonas sp. 224S adhesion.
Findings provide insights into bacterial surface colonization dynamics.