Anatomical structure of vegetative organs and developmental characteristics of generative organs of Mangifera indica L.

Mangifera indica is an evergreen tree belongs to the Anacardiaceae family، in Iran it is found in the Hormozgan and Baluchistan provinces. Till now، no research has been carried out regarding the structural characteristic and development of this species; therefore in the present study structure of vegetative organs and developmental characteristics of reproductive stages was investigated. The vegetative organs were cut and fixed in glycerin and ethanol. The young flowers and buds were sampled at different developmental stages. Samples were fixed in FAA and sliced using a microtome. Staining was carried out with Eosin and Haematoxylin. The primary and secondary structures of root، shoot، petiole، leaf، inflorescence axil and shoot apical meristem showed similarity to dicotyledons. Generative organs contained androecium with 5 stamens which one was reproductive while others were sterile. The anther had 2 parts and 4 pollen sacs. The tapetum layer was secretary type and pollens were three porated. The gynocecium had a carpel with one cameotropous ovule and one tegument. The placentation was of a basal type. The secretary tissues were seen in vegetative organs of the plant. Base on the anatomical findings، we observed a characteristics similarity between this plants and other Angiosperms. With respect to the results of the developmental stages of reproductive organs new information for recognition of this plant was obtained.