The Flower Bud Development and Pollen Ultrastructure of Ciplukan (Physalis angulata L.)
Utaminingsih (a), Tiara Suryani (b), Siti Susanti (c), Maryani (d*)

(a), (b), (c), (*d) Plant Structure and Development Laboratory, Faculty of Biology, Universitas Gadjah Mada- Jl. Teknika Selatan, Sekip Utara, Yogyakarta 55281
*mmyani[at]ugm.ac.id

Abstract

The Solanaceae family is a group of plants that have many taxa with high economic value. The Physalis genus is one of the members of the family Solanaceae which is widely used in the medical field, as well as food ingredients. The concentration of secondary metabolites in Physalis increases with the development of flower buds, so data is needed regarding the development of flower buds. P. angulata and P. divaricata D. Don are two species that have many similarities. The purpose of this study was to determine the development of P. angulata L. flower buds and to compare the flower morphological characteristics of some species from the same family and to compare the pollen ultrastructure of P. angulata L. and P. divaricata D.Don. The youngest buds and buds at anthesis had a diameter of 1.1 ± 0.02 mm and 9.3 ± 0.67 mm and a length of 2.4 ± 0.02 mm and 9.3 ± 4.67 mm respectively. The easiest flower morphological character to distinguish between genus is the color of petal. Pollen ultrastructures P. divaricata and P. angulata have a prolate shape, tricolpate type aperture, and verrucate ornamentation.

Keywords: Solanaceae, Physalis, flower bud, pollen ultrastructure

Topic: Biology