The plant hormone auxin plays a central role in growth and morphogenesis. In shoot apical meristems, auxin flux is polarized through its interplay with PIN proteins. Concentration-based mathematical models of the flux can explain some aspects of phyllotaxis for the L1 surface layer, where auxin accumulation points act as sinks and develop into primordia. The picture differs in the interior of t...

Lisianthus (Eustoma grandiflorum L.) is a very popular, ornamental plant. Due to low germination of its seeds, usual techniques for its propagation are not efficient. The present study was aimed to establish callus from explants of different plant parts of Eustoma grandiflorum L. Raf Shinners in B5, LS and MS media with modifications.  The results showed that among different plant parts, leaf e...

Cistanche deserticola (CD) is one of the two authoritative source plants of Cistanches Herba, a well-known medicinal plant. Herein, 1H NMR spectroscopy was employed to characterize the chemical profile and to distinguish the different parts, as well as to propose a new processing workflow for CD. Signal assignment was achieved by multiple one and two dimensional NMR spectroscopic techniques in ...

Objective: To study plants purification capability of  Cu on two cultivars of vetch plant (Vigna Radiata) in contaminated soils and their effects on morphological characteristics. Methods: we conducted a completely randomized trial as factorial. Different concentrations of  Cu (0, 150, 300, and 400 mg/ Kg of dried soil) were used. After four weeks growth on contaminated soil, parameters such as...

Gentiana rigescens Franch (Gentianaceae) is a famous medicinal plant for treatments of rheumatism, convulsion, and jaundice. Comprehensive investigation of different parts and cultivation years of this plant has not yet been conducted. This study presents the quantitative and qualitative characterization of iridoid glycosides from G. rigescens performed by HPLC and FTIR spectroscopy techniques....

We examine a multiple-vehicle routing problem that permits split pick-ups (mVRPSP). This problem involves a fleet of trucks having identical capacity, multiple suppliers, and a single assembly plant. The fleet is responsible for moving parts from the suppliers to the assembly plant. The problem is to determine, for each truck, how many parts to pick up at each supplier to then transport to the ...