Evolution of the hypodermal cells of grape berry during their transformation in pulp cells

Abstract

Some hypodermal cells of grape berry become pulp cells during growth stage to maturity. Their vacuolar tannins disappear and their cell walls get thinner in two times. In a first time, cell walls lose their polysaccharides (PAS negative walls), then they get thinner like pulp walls.

Keywords

• grape berry
• hypodermal cells
• pulp
• cell wall
• polysaccharides
• PAS test