Pseudomonas butanovora possesses an alcohol-inducible alkane monooxygenase, butane monooxygenase (BMO), that initiates growth on C(2)-C(9) alkanes. A lacZ transcriptional reporter strain, P. butanovora bmoX::lacZ, in which the BMO promoter controls the expression of beta-galactosidase activity, was used to show that 1-butanol induced the BMO promoter in the presence or absence of O(2) when lact...

SUMMARY The deoxyribonudeotide, total nucleotide, and protein con tent of single mononuclear cells derived directly from the peripheral blood buffy coats of patients with infectious mono nucleosis were determined cytochemically by means of ultra microspectrophotometry and ultramicrointerferometry. A small fraction of cells in the populations derived from each patient was found to be in the 5-or...