Original scientific paper

Ultrastructural Changes of Plastids during the Ripening of the Fruit of Convallaria majalis L.

Zora Modrušan ; Hrvatska
Mercedes Wrischer ; Hrvatska

Abstract

Ultrastructural changes of plastids during the ripening of the fruit of Convallaria majalis were examined by electron microscopy. Special attention was given to the differences between development of plastids of the outer cell layer (epidermis) and the inner ones (parenchyma). The epidermis of the unripe fruit is characterized by plastids with membrane-bound inclusion while parenchyma contain chloroplasts with grana and highly developed peripheral reticulum. At a later stage, chromoplasts of the epidermis in the semi-ripe fruit still have membrane-bound inclusion and beside that, many plastoglobules. Chromoplasts of the parenchyma have numerous plastoglobules, disintegrated thylak- oid system and non-chlorophyllous membranes. The epidermis and the parenchyma of the ripe fruit have a unique type of chromoplasts characterized by the presence of plastoglobules and numerous newly formed crystalloids.

Keywords

Hrčak ID:

159442

URI

https://hrcak.srce.hr/159442

Publication date:

31.12.1988.

Article data in other languages: croatian

Visits: 890 *