Fig. 7

Relative expression of the α-arabinofuranosidase (a), α-xylosidase (b), β-glucosidase (c), cellulase (d), SAG12-like (e), and XET-like (f) genes in non-senescing (+1, black bars) and senescing (+8, grey bars) leaves of the sugarcane cv. RB867515. The data were collected at time points from 08:00 to 18:00 h. The GAPDH endogenous gene expression was used as reference to measure relative expression levels, which were calculated according to [39]. The asterisks indicate statistical significance at p ≤ 0.05 when +1 leaves were compared to +8 leaves. Vertical bars show ± S.E. for n = 3