Figure 2.

Contents of xyloglucan and starch in detached cotyledons (A and B, respectively; legend in A) and in cotyledons attached to the seedlings (C and D; legend in C) of H. courbaril. The attached cotyledons were from seedlings grown under control conditions (control), in the darkness. or with shoot excised above the cotyledons insertions at 34 d (excised). Cotyledons were detached at 19, 34, and 41 d and kept in water in the darkness or in 10⁻⁶ m 2,4-D (41 d only). Bars represent sd of the mean of three composed replicates.