## Abstract The details of the chemotactic response of Salmonella typhimurium to gradients of Lβserine have been examined in some detail. Two relatively macroscopic techniques have been employed to measure the bacterial response. These include measurements of the average velocity as the bacterial p
Modeling microbial chemotaxis in a diffusion gradient chamber
β Scribed by Mark T. Widman; David Emerson; Chichia C. Chiu; R. Mark Worden
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 584 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0006-3592
No coin nor oath required. For personal study only.
β¦ Synopsis
The diffusion gradient chamber (DGC) has factors are common in many microbial ecosystems.
proven to be a useful experimental tool for studying pop-
Microorganisms able to position themselves optimally
ulation-level microbial growth and chemotaxis. A mathewith respect to gradients may have a competitive advanmatical model capable of reproducing the populationtage over other organisms. The ability of an organism level patterns formed as a result of cellular growth and to move in response to a gradient of a chemical species chemotaxis in the DGC has been developed. The model consists of coupled partial differential balance equations is known as chemotaxis. Many bacteria have been shown for cells, chemoattractants, and a nutrient, which are to exhibit chemotaxis (Adler, 1972; Berg and Tedesco, solved simultaneously by the alternating direction im-
π SIMILAR VOLUMES
## Abstract A solid, porous matrix was used to establish steadyβstate concentration profiles upon which microbial responses to concentration gradients of nutrients or antimicrobial agents could be quantified. This technique relies on the development of spatially defined concentration gradients acro