FIG. 6.

Growth of M. catarrhalis O35E at 26°C compared to that at 37°C. Bacteria were grown to mid-logarithmic phase (OD₆₀₀ = 0.3) under standard conditions at 37°C (▴). The culture was then split (arrow), and equal aliquots were incubated further at 26°C (▪) and 37°C (⋄), respectively. The inset displays the time course of the temperature downshift of the bacterial culture aliquot exposed to 26°C.