The effect of 24-epibrassinolide (24-epiBL) on seedling growth, metal uptake and accumulation were investigated in seedlings of Brassica juncea L. cv. PBR 91. Seeds of B. juncea treated with different concentrations (0, 10-7, 10-9 and 10-11 M) of 24-epiBL for 8 h were subjected to various concentrations (0, 25, 50 and 100 mg l-1) of heavy metals (Zn, Mn, Co and Ni). Seedling growth was improved...

In this study conducted in 2020, three concentrations (1, 5 and 10 µM) of 24-epibrassinolide were applied to seedlings Lycopersicon esculentum Mill. (Solanales: Solanaceae) cv. H2274, which is susceptible root-knot nematodes, by immersion, spray irrigation, its effects against nematode Meloidogyne incognita (Kofoid & White, 1919) Chitwood, 1949 (Tylenchida: Meloidogynidae) investigated. One-tho...

Herein, we present a new strategy for the preparation of a broad range of brassinosteroid biosynthetic precursors/metabolites differing by the ring A fragment. The protocol is based on the use of readily available phytohormones of this class bearing a 2α,3α-diol moiety (epibrassinolide or epicastasterone) as starting materials. The required functionalities (Δ2-, 2α,3α- and 2β,3β-epoxy-, 2α,3β-,...

New types of steroid-porphyrin conjugates derived from 20-hydroxyecdysone (20E) and 24-epibrassinolide (EBl) were synthesized. An exceptional regioselectivity in the reaction of both steroids with porphyrin boronic acids was found to give side-chain-conjugated boronic esters as sole products. UV-Vis-, fluorescence and NMR spectroscopy yielded similar data for all the studied compounds confirmin...

to study the effects of 24-epibrassinolode on improving germination parameters and seedling growth of typical american eggplant under chilling stress, an experiment with four concentrations of 24-epibrassinolode (0, 0.5, 1 and 2 µm) in completely randomized design in factorial form with three replicates were performed in plant physiology lab of arak university at 1391. eggplant seeds were soake...

Proposed distributed reactivity model of dehydration for seedling parts of two various maize hybrids (ZP434, ZP704) was established. Dehydration stresses were induced thermally, which is also accompanied by response of hybrids to heat stress. It was found that an increased value of activation energy counterparts within radicle dehydration of ZP434, with a high concentration of 24-epibrassinolid...