STUDY OF ANATOMICAL STRUCTURE OF VEGETATIVE ORGANS, FLORAL MERISTEM AND POLLEN DEVELOPMENT IN SESAME

ABSTRACT: Sesame (sesamum indicum L.) is recognized as the oldest oilseed and belongs to the Pedaliaceae family. It is cultivated in tropical and temperate regions. In order to study anatomical and developmental process, the samples were collected from Babol in summer of 2014. The vegetative organs were fixed in alcohol-glycerin. Likewise, collected flowers and meristems were fixed in F.A.A and then the slides were prepared for staining and microscopic studies. The vegetative organs present dicotyledonous-type structure. The microsporogenesis in sesame presents perfect flowers, tetrasporangiate anthers, tetrahedral tetrads arrangement and secretory tapetum. This report is a contribution to consider sesame pollen ontogeny in Pedaliacea family