Science Progress articles from September 2006

Science Progress archives from September 2006

Recent insights into microbial physiology.
September 22, 2006... Further to our continued interest in microbiology as a prime discipline in life sciences, we are pleased to present a double number special issue of Science Progress on microbial physiology. There is no surprise in placing such special emphasis...

DNA supercoiling and bacterial gene expression.
September 22, 2006... ABSTRACT DNA in bacterial cells is maintained in a negatively supercoiled state. This contributes to the organization of the bacterial nucleoid and also influences the global gene expression pattern in the cell through modulatory effects...

Variations on a theme: diverse N-acyl homoserine lactone-mediated quorum sensing mechanisms in Gram-negative bacteria.
September 22, 2006... ABSTRACT Many Gram-negative bacteria employ a mechanism of cell cell communication known as quorum sensing (QS). The role of QS is to enable the cells in a culture to coordinate their gene expression profile with changes in the population...

The role of two-component regulation systems in the physiology of the bacterial cell.
September 22, 2006... ABSTRACT Two-component regulation systems (TCRSs) are the dominant type of signal transduction system in prokaryotes that are used to inform the cellular trancriptional machinery (and additional targets for regulation, like the motility...

Deciphering a complex genetic regulatory network: the Bacillus subtilis [[sigma].sup.W] protein and intrinsic resistance to antimicrobial compounds.
September 22, 2006... ABSTRACT Bacillus subtilis, a spore-forming soil bacterium, is the preeminent model system for the analysis of gene regulation in Gram-positive bacteria. Early genetic analyses established that this organism uses alternative sigma...