Height ratios of characteristic lignin and carbohydrate FTIR peaks in isolated cell walls from wild-type and 35S::OsEXPA8 transgenic suspension cells.

Suspension cultures on day 10 from three independent 35S::OsEXPA8 transgenic lines (L1, L4 and L5) were used for preparing cell wall extracts, respectively. Values are the means of three biological replications ± standard error. Asterisks (*) indicate 35S::OsEXPA8 transgenic suspension cell parameters were significantly different from that of wild-type cells by statistical analysis using the Student’s t-test program (PPeak assignations: 1160 cm−1, C-O-C vibration of the glycosidic link in cellulose, xyloglucan, or pectic polysaccharides; 1425 cm−1, C-H stretch in CH2 of cellulose; 1540 cm−1, lignin aromatic ring stretching; 1740 cm−1, C = O stretch in ester groups.