Fig. 4

Growth of C. bescii strains on cellobiose (a) or xylan substrates (b). JWCB21, the parent strain used in these experiments (see Table 2 for genotype details); JWCB73, the E1 expression strain; JWCB74, the E1 expression strain containing Acel_0180; JWCB75, the E1 expression strain containing Acel_0372. Viable cell counts are measured after 36 h cultivation on xylan substrates