Now showing items 1-10 of 278
Targeted disruption of the PD78 gene ( traF ) reduces pheromone-inducible conjugal transfer of the bacteriocin plasmid pPD1 in Enterococcus faecalis
(Blackwell Publishing Ltd, 1995-05)
Bacterial sex pheromone, cPD1, induces sexual aggregation of Enterococcus faecalis harboring the bacteriocin plasmid, pPD1, and enables pPD1 to transfer at high frequency in a liquid culture. PD78 is a cPD1-inducible cell ...
Differentiate to thrive: lessons from the Legionella pneumophila life cycle
(Blackwell Science Ltd, 2004-07)
When confronted by disparate environments, microbes routinely alter their physiology to tolerate or exploit local conditions. But some circumstances require more drastic remodelling of the bacterial cell, as sporulation ...
Properties of yeast pyruvate decarboxylase and their modification by proteolytic enzymes : I. Stability of decarboxylases from wild-type and mutant strains
(Elsevier, 1968)
High concentrations of inorganic phosphate and ammonium sulfate stabilize yeast pyruvate decarboxylase to heating at 60 [deg] for long periods of time in the presence of TPP and Mg+. When heated at 60 [deg] in phosphate ...
Evaluation of a new transport medium for the preservation of oral streptococci
(Elsevier, 1973-07)
The survival of pooled plaque bacteria and a mixed suspension of Streptococcus mutans, Streptococcus sanguis, Streptococcus mitis, and Streptococcus salivarius were tested in three transport media. A new, non-nutritive, ...
Two routes for synthesis of phosphoenolpyruvate from C4-dicarboxylic acids in
(Elsevier, 1974-08-19)
Mutants of defective in both phosphoenolpyruvate carboxykinase and phosphoenolpyruvate synthetase are unable to use C4-dicarboxylic acids such as succinate and malate as carbon and energy sources for growth. Revertants ...
Aspiration Pneumonia: Dental and Oral Risk Factors in an Older Veteran Population
(Blackwell Science Inc, 2001-05)
To investigate the importance of medical and dental factors in aspiration pneumonia in an older veteran population. DESIGN: Prospective enrollment of subjects with retrospective analysis of data. SETTING: Department of ...
On the use of metaphor to understand, explain, or rationalize redundant genes in yeast
(Blackwell Publishing Ltd, 2008-05)
The proposal that yeast, and cells in general, contains redundant genes that enable cells to survive mutational change has been supported by experiments and a strong metaphor. The redundant gene proposal is analyzed, and ...
The equilibria that allow bacterial persistence in human hosts
(Nature Publishing Group, 2007-10-18)
We propose that microbes that have developed persistent relationships with human hosts have evolved cross-signalling mechanisms that permit homeostasis that conforms to Nash equilibria and, more specifically, to evolutionarily ...
Controlled delivery of inductive proteins, plasmid DNA and cells from tissue engineering matrices
(Blackwell Publishing Ltd, 1999-10)