Table 4.

Lag phase (days) for M. trichosporium OB3b growth experiments.

C-source	N-source	N:C ratio	CH4-grown inoculum		CH3OH-grown inoculum
			Fresh	Aged	Fresh	Aged
CH4	NH4+	Low	1	2.5	–	–
CH4	NH4+	High	1.5	2.5	–	–
CH4	NO3-	Low	1.5	2.5	–	–
CH4	NO3-	High	1.5	2.5	–	–
CH3OH	NH4+	Low	12–14	9	5–5.5	9.5–10.5
CH3OH	NH4+	High	10–13	12–13	5.5	9–11
CH3OH	NO3-	Low	12–14	10.5	4.5–5	9–11.5
CH3OH	NO3-	High	10.5–11	9	4.5	8.5