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Abstract
SUMMARY: The rate of decrease in optical density (increase in size of organisms) was determined in washed suspensions of a strain of Pseudomonas aeruginosa after they were added to potassium, sodium, or potassium + sodium phosphate buffers. The rate was increased by the addition of pyruvate or acetate. The maximal effect of pyruvate occurred in potassium + sodium buffer; of acetate in potassium buffer. Rate changes were also dependent on pH value and osmotic pressure.
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© Journal of General Microbiology 1963