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Volume 11, Issue 1 (10-2011)
Abstract
Plants from papilionoideae Subfamily of fabaceae family have a papilionoid flower. Glycyrrhiza glabra is an important plant of this family and is a perennial and bushy plant which includes raceme inflorescences with blue or dark violet flowers. Flower has synsepalous calyx with five lobes that at adaxial surface has secretory hairs. Corolla has three kinds of petals: a vexillium, two wings and two keels. In contrast to other petals, wings have secretory locules more and are darker in color. Keels do not attach to each other. Androecium is decamerous, diadelphous, heteromorphy. Anther characters are: tetrasporange, extrorse, longitudinal dehiscence, four wall layers, simultaneous cytokinesis, secretory taptum and sheroidal pollen. Gynoecium is monocarpate with campilotropous and crossinucelate ovules, open style and disk shaped stigma. Secretory thricomes are seen on the outer side of sepals. Fruit is pod with 2-5 seeds, which even at maturity stage has secretory thricomes. Eventually, it seems that flower color, its papilionoid structure, numerous secretory thricomes on ovary wall, sepals and wings are important charachters at insect attraction.
Volume 18, Issue 58 (8-2004)
Abstract
In this investigation, quantitative analysis of glycyrrhizic acid (GA) in roots and calluses from different populations of Glycyrrhiza glabra L. were performed by HPLC. For this purpose roots and seeds were collected from localities of Abadeh (Fars), Djupar (Kerman) and Veyssian (Lorestan). For callus production, root explants of ten days old seedlings were maintained on Murashige and Skoog medium with 2,4-D (0.5 mg.l-1), IAA (0.5 mg.l-1) and BAP (0.1 mg.l-1). After 42 days, the growing calluses were excised and used for GA analysis. High amounts of GA were found in roots but no significant differences were observed between roots from different populations contrary to calluses. Between calluses of different origin, the highest content of GA (still remaining very small compared with the roots one) was observed in callus of G.glabra L. var. glabra of Fars. The lowest level of GA was noticed in calluses of G.glabra L. var. glandulifera of Fars, which have shown the maximum of growth in vitro.
