Biofilm resistance to antimicrobial agents

Article Abstract:

Antibiotics may damage but not kill the organisms on the surface of biofilms. These organisms would then shield the organisms below them from nutrients that would arouse them from their dormant state, making them susceptible to the drug. This could explain why biofilms are more resistant to antibiotics.

Antibiotics, Microbial mats

---

Spatial patterns of alkaline phosphatase expression within bacterial colonies and biofilms in response to phosphate starvation

Article Abstract:

Research was conducted to examine spatial patterns of starvation gene expression within bacterial biofilms and colonies. Enzyme expression patterns were studied in both Pseudomonas aeruginosa and Klebsiella pneumoniae biofilms. Results are in good agreement with the hypothesis that alkaline phosphatase expression patterns are primarily controlled by the local availability of the electron acceptor or the carbon and energy source.

Genetic aspects, Microbial enzymes, Gene expression, Starvation, Alkaline phosphatase

---

Spatial physiological heterogeneity in Pseudomonas aeruginosa biofilm is determined by oxygen availability

Article Abstract:

A study was conducted to analyze the function of oxygen availability on the physiological activity of Pseudomonas aeruginosa in biofilms. A drip-flow reactor was utilized to cultivate the biofilms. Experimental results indicated marked spatial physiological heterogeneity within P. aeruginosa biofilms wherein protein synthesis is hindered by the availability of oxygen to the upper 30 microns of the biofilm.

Oxygen

Similar abstracts:

• Abstracts: Population differences in the pattern of familial aggregation for sex hormone-binding globulin and its response to exercise training: the HERITAGE Family Study
• Abstracts: Structure of the 80S ribosome from Saccharomyces cerevisiae--tRNA-ribosome and subunit-subunit interactions. Solution structure of the E. coli 70S ribosome at 11.5 Angstroms resolution
• Abstracts: Putative mammalian taste receptors: a class of taste-specific GPCRs with distinct topographic selectivity. A novel family of mammalian taste receptors

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.