FIG 2.

Biomass protein and storage carbohydrate (glycogen and trehalose) contents in aerobic ammonium- and phosphate-limited (N- and P-limited) cultures of S. cerevisiae CEN.PK113-7D. Data represent the averages and standard errors from multiple measurements on duplicate cultures. (A and B) Biomass protein (A) and storage carbohydrates (glycogen and trehalose) (B). Samples were withdrawn from the steady-state, slow-growth (μ = 0.025 h⁻¹) chemostat cultures and the pseudo-steady-state, near-zero-growth (μ < 0.002 h⁻¹) retentostat cultures. (C and D) Glycogen (C) and trehalose (D) contents versus the specific growth rate in the prolonged retentostat cultures.