These develop from Leucoplasts. They are colourless and store Amylopectin to form starch. This then can be converted to Glucose and used to provide energy when the cell needs it. Amyloplasts are found in large numbers in areas of a plant that store starch e.g. potato. Amyloplasts and Chloroplasts are closely related and amyloplasts can turn into chloroplasts. Starch synthesis and storage also takes place in chloroplasts a type of pigmented plastid involved in photosynthesis.
This is a place where Intracellular changes take place through these special Cytoplasmi bridges between cells. The Plasmodesmata appear to be produced as the cells divide-the two cells dont separate completely.