Indole-3-butyric acid (IBA) was recently identified by GC/MS analysis as an endogenous constituent of various plants . Plant tissues contained 9 ng g fresh weight of free IBA and 37 ng g-' fresh weight of total IBA, compared to 26 ng g-' and 52 ng g-' fresh weight of free and total indole-3-acetic acid (IAA), respectively . IBA level was found to increase during plant development, but never rea...

In the commercial production of roses, introducing a method to reduce the time of propagation with maximum success is crucial. This study was conducted to investigate the effect of different concentrations (0, 1500, 3000, 4500 mg/L) of Indole-3-butyric acid (IBA) on propagation of three cultivars of Rosa hybrid L. ('Dolce Vita', 'Samurai' and 'Utopia') by stenting (simultaneous cutting and graf...

The seeds of Plukenetia polyadenia have high levels of unsaturated fatty acids and are used as medicine and food for native people in the Peruvian and Brazilian Amazon. The objective of this study was to develop a method for vegetative propagation of Plukenetia polyadenia by rooting of cuttings. The experiment was laid out in a randomized complete block design with 12 treatments and 3 replicati...

Vegetation removal during resource extraction in the Arctic causes long-lasting impacts requiring revegetation to accelerate plant reestablishment. This study focused on root development shrub cuttings from seven common species at Diavik Diamond Mine, Northwest Territories. Two experiments were conducted; first had six soaking times (zero, one, three, five, ten, twenty days), four indole-3-buty...

Rose is the most favorite cut flowers all over the world. Production of high-quality flowers, prevention, and delay of flower senescence, is a major goal in floriculture. Now a day, biotechnological approaches have been used to improve ornamental attributes. Tissue culture and genetic transformation appear to offer valuable advancements for operating floral characteristics. In this study, after...

Rambutan tree (Nepheliumlappaceum L.) is an important but a lesser known fruit tree in Ghana and has several nutritional and medicinal uses. Efforts to establish plantation of Rambutan in Ghana to ensure its sustainable use is challenged with unavailable planting materials because the seeds are recalcitrant in nature, loses viability easily when exposed to dryness. Seeds are therefore sown dire...

A method of in vitro clonal propagation of cowslip Primula veris L. (Primulaceae) is reported. This is a species of medicinal importance, protected by law in Poland. MS medium Murashige and Skoog (1962) with 6 benzyladenine BA (4.44 μM) and 2,4-dichlorophenoxyacetic acid 2,4-D (1.13 μM) was found to be optimal for in vitro cowslip propagation from shoot tips under the conditions of culture. Roo...

Indole-3-acetic acid (IAA) is the most important member of the group of phytohormones known as auxins, which regulate many aspects of plant growth and development. The concentration of IAA in cells and tissues is controlled by various mechanisms, including de novo biosynthesis, synthesis and hydrolysis of IAA conjugates, conversion of IAA to indole-3-butyric acid (IBA), and oxidative degradatio...

S-Adenosylmethionine synthetase (SAMS) catalyzes the synthesis of S-adenosylmethionine (SAM), a precursor for ethylene and polyamine biosynthesis. Here, we report the isolation of the 1498 bp full-length cDNA sequence encoding tetraploid black locust (Robinia pseudoacacia L.) SAMS (TrbSAMS), which contains an open reading frame of 1179 bp encoding 392 amino acids. The amino acid sequence of Trb...