ACCELERATED BACTERIOPHAGE SYNTHESIS IN PENTAMIDINE-TREATED ESCHERICHIA COLI

Pasteurella Bacteriophage Sex Specific in Escherichia coli.

Phage H, thought to be specific for Pasteurella pestis, was shown to plate efficiently on F(-) strains of Escherichia coli but not on F(+), F', or Hfr strains. The phage was adsorbed rapidly to F(-) strains but was not adsorbed to strains carrying F. Comparison with seven other reported female-specific phages showed that, although phage H was similar to the other phages in some characteristics,...

Effect of pentamidine on the growth of Escherichia coli.

Since Thrower and Valentine (1943) observed the trypanocidal and bacteriostatic action of propamidine, a number of investigators have studied the antimicrobial action of the aromatic diamidines. Kohn (1943) reported the inhibition of growth of Escherichia coli and Staphylococcus aureus by propamidine. This observation was extended to include Lactobacillus casei and Streptococcus lactis strain R...

Escherichia coli XL10-gold bacteria produce bacteriophage.

Bacteriophage cocktail significantly reduces Escherichia coli O157

Foods contaminated with Escherichia coli O157:H7 cause more than 63,000 foodborne illnesses in the United States every year, resulting in a significant economic impact on medical costs and product liabilities. Efforts to reduce contamination with E. coli O157:H7 have largely focused on washing, application of various antibacterial chemicals, and gamma-irradiation, each of which has practical an...

Biosynthesis of pentose in Escherichia coli. Synthesis of deoxyribose in cells infected with bacteriophage.

The biosynthesis of ribose and deoxyribose in Escherichia coli involves both the oxidative pathway through 6-phosphogluconate and the nonoxidative pathway through the transketolase and transaldolase sequence (Lanning and Cohen, 1954; Bernstein, 1956; Bagatell, Wright, and Sable, 1959). The proportions of the oxidative and nonoxidative pathways depend on the nature of the principal carbon source...