The superficial life of microbes

Article Abstract:

The physiological differences between free-living individuals and communal biofilm-associated cells, which are becoming apparent, as are the regulatory mechanisms that underlie the switch between these two life styles are discussed. Agents that control the biology of biofilms, to allow them to analyzed further, to treat biofilm infections, and to control biofilms for beneficial uses is developed.

United States, Science & research, Physiological aspects, Microbial mats, Microorganisms, Microbial ecology

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DNA protection by stress-induced biocrystallization

Article Abstract:

Living systems that are exposed to severe environmental assaults may be protected by the sequestration of vital macromolecules in intracellular crystalline assemblies. A generic defence strategy was found in Escherichia coli, which involved co-crystallization of its DNA with stress-induced protein Dps. DNA-Dps co-crystallization may represent a binding mode giving protection .

DNA, Crystallization

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A role for excreted quinones in extracellular electron transfer

Article Abstract:

Bacterial mutants which are unable to respire on humic substances contain disruptions of a gene involved in the biosynthesis of menaquinone. This suggests that electron transfer by bacteria to poorly soluble minerals for anaerobic respiration may be mediated by excreted quinones.

Analysis, Anaerobiosis

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