Fig. 5

Profile of the neutral monosaccharides fucose (a), rhamnose (b), arabinose (c), galactose (d), glucose (e), and xylose (f) in the ‘between-leaves’ gradient and in the ‘in-leaf’ senescence gradient of the sugarcane cv. RB867515. The “leaf” axis shows the sugarcane leaf number according to Kuijper [26]. The amounts of all neutral monosaccharides correspond to 100 % of the cell-wall major components. Statistical analysis: leaf refers to statistics applied in different leaves (from +1 to +8); leaf position refers to statistics applied to the same leaf (base, middle, and tip portions) and leaf*position refers to statistics applied for the whole data set (‘between-leaves’ and ‘in-leaf’ gradients); asterisk indicates statistical difference: **p ≤ 0.01, *p ≤ 0.05, and ns non-significant