Table II. Respiratory O₂ uptake in darkness by Synechocystis WT and ΔLepB1 strains - effect of PCP and DBMIB. All rates are given as μmol O₂ h⁻¹ (ml at OD 730 = 1)⁻¹ ± standard deviation, measured in the presence of 5 mm glucose. Values in parentheses are expressed as percentage of control rate.

Addition	Rate of respiration
	WT	ΔLepB1
Control	0.090 ± 0.002 (100)	0.087 ± 0.002 (100)
3 mm PCP	0.018 ± 0.003 (20)	0.035 ± 0.001 (40)
10 μm DBMIB	0.122 ± 0.001 (136)	0.205 ± 0.002 (236)
40 μm DBMIB	0.130 ± 0.003 (144)	0.291 ± 0.004 (334)