3.6. Macrovision imaging
No changes in tissue appearance or cell size were observed according to ripeness, except that more gas bubbles were observed in the outer pericarp late in the ripening process compared to at the beginning of the experiment. The macrovision images confirmed that the cell morphology differed between the core (and placenta) and outer pericarp (Musse et al., 2009). While cells were large and mainly elongated perpendicular to the cuticle in the outer pericarp, cells in the core and the placenta were much smaller and no specific orientation was observed. The structure of the locular tissue was atypical: seeds were surrounded by a set of small, elongated cells, enclosed in a set of cells that were not distinguishable at this scale.