Specific activity of cellulase produced by C. luteola MFCL0. Cells were grown in PGA medium, NB, and NB+PGA at 8, 11, 14, 17, 20, 24, and 28°C. Cellulase activity was assayed as described in the text. Each datum point represents a mean based on at least three independent determinations. The error bars indicate standard deviations. Symbols: □, PGA medium; ○, NB; ⊕, NB+PGA. OD580, optical density at 580 nm.