THE ULTRASTRUCTURE OF APPLE FRUIT CELLS DURING STORAGE
T. Kh. Kumakhova
Chair of Botany, Kabardino-Balkarian State University, Nalchik;
e-mail: kumachova@aport.ru
A study was made of ultrastructural features of epidermal and hypodermal cells of freshly collect apples of
early- and late-ripe cultivars, and of those storaged at low temperature. In late-cultivars, I ultrastructure of
most cells remained unchanged within 8 months (except increased vacuolation). In early-ri cultivars, signs of
senile destruction were evident in many hypodermal cells as early as within 2 months storage. Apple cells of all
cultivars contained a fairly developed smooth endoplasmic reticulum (SER). suggestion is made that SER may be
involved in the synthesis of abscisic acid essential for the fr dormancy maintenance.
Key words: smooth endoplasmic reticulum, abscisic acid, apple
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