It showed good growth on carboxymethyl cellulose (CMC) and xylan (XY), reaching 7 × 1011 and 3 × 1011 CFU ml−1 , respectively. As expected, lower growth occurred when grown on crystalline cel- lulose, such as Avicel, or filter paper (7 × 108 and 2 × 108 CFU ml−1 respectively). It was also able to grow on pretreated sugar cane residue (SCRse) or wheat straw (WSe). Under anaerobic conditions