The Dissolution and Reaccumulation of Starch Granules in Grape Vine Cane

Abstract

Starch granules may be observed to break down in vivo either by corrosion spreading inwards from discrete points on the surface or by a decrease in size without change in shape due solely to surface action. The latter way may be termed reverse apposition because apposition growth of granules is observed as an increase in size without change in shape. There are grounds for suggesting the hypothesis that amylases are responsible for corrosion and some other enzyme system for reverse apposition.