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Adler, Howard I. (Oak Ridge National Laboratory, Oak Ridge, Tenn.), and Alice A. Hardigree. Growth and division of filamentous forms of Escherichia coli. J. Bacteriol. 90:223-226. 1965.-Cells of certain mutant strains of Escherichia coli grow into long multinucleate filaments after exposure to radiation. Deoxyribonucleic acid, ribonucleic acid, and protein(More)
Changes in colony morphology were associated with the degeneration of solvent-producing strains of Clostridium acetobutylicum. The most efficient solvent-producing strains gave rise exclusively to colonies with dense centers containing large numbers of spores. Many outgrowths of various morphologies developed from the perimeter of such colonies after(More)
A survey of sweet itch in horses in Israel based on a questionnaire to owners reported that 158 of 723 horses (21.8 per cent) had sweet itch lesions. The results indicated that the likelihood of a horse acquiring sweet itch decreased with increasing altitude but no definite association with rainfall zones was evident. Variation in the density of the horse(More)
A particulate fraction derived from bacterial cells stimulates septation in irradiated Escherichia coli lon mutants when added to postirradiation plating media. It was established that the particles are derived from the cytoplasmic membrane and that they have been partially purified by sucrose density gradient centrifugation. These particles also contain(More)
An Escherichia coli polA (Ex) mutant that is usually inviable at restrictive temperatures (43 degrees C) was found to grow normally at 43 degrees C when incubated in the presence of a membrane-containing fraction prepared from E. coli. This membrane fraction causes anaerobic conditions that are necessary but not sufficient for restoration of viability since(More)
Adler, Howard I. (Oak Ridge National Laboratory, Oak Ridge, Tenn.), William D. Fisher, Alice A. Hardigree, and George E. Stapleton. Repair of radiation-induced damage to the cell division mechanism of Escherichia coli. J. Bacteriol. 91:737-742. 1966.-Microscopic observations of irradiated populations of filamentous Escherichia coli cells indicated that(More)
  • H I Adler
  • 1990
The cytoplasmic membranes of many aerobic and facultative bacteria contain enzymes that catalyze the reduction of dissolved oxygen to water. Preparations of small particles derived from such membranes can be filter sterilized without loss of the oxygen-reducing enzymes. These particle preparations can be used to produce anaerobic conditions in a variety of(More)