Science Progress articles from September 2004

Science Progress archives from September 2004

Responses to chemical, physical and biological stresses: involvement of extracellular alarmones, pheromones and varisensors.
September 22, 2004... Introduction The first article in this special issue (1) seems at first slightly out of place, in that it considers the synthesis, properties and roles of the ribosome modulation factor (RMF) and related agents. In fact, this article is...

Ribosome inactivation for preservation: concepts and reservations.
September 22, 2004... The role of the bacterial ribosome in the cellular response to environmental stress has been widely considered over last decade. Certain ribosome-associated proteins have been shown to induce conformational changes that lead to the formation of...

Applied and ecological aspects of oxidative-stress damage to bacterial spores and to oral microbes.
September 22, 2004... Bacterial cells have adapted in a variety of ways to resist oxidative stresses and damage in their everyday lives in a predominantly aerobic world. The nearly universal occurrence of resistance mechanisms against oxidative stresses,...

Bacterial sensitivity to bacteriophage in the aquatic environment.
September 22, 2004... There are several unusual features about phage when you first encounter them as a biologist. They are small, but conform to one of a few morphological types. Next their genomes can be composed of DNA or RNA and be single or double stranded....

Enterobacterial responses to external protons, including responses that involve early warning against stress and the functioning of extracellular pheromones, alarmones and varisensors.
September 22, 2004... Several striking findings, related to biological effects of external acidity, are reviewed here. The first of these relates to the role of PhoE in the penetration of [H.sup.+] and protonated metabolites into the cell. PhoE is an anion pore and...