Extracts of pea seedlings (Pisum sativum, variety Alaska) oxidize indole-3-acetic acid to a bacteriostatic compound which has been identified as 3-hydroxymethyloxindole. At physiological pH this compound is readily dehydrated to 3-methyleneoxindole, another bacteriostatic agent. The extracts of pea seedlings also contain a reduced triphosphopyridine nucleotide-linked enzyme which reduces 3-meth...

Joint application of gibberellic acid and indole-3-acetic acid to excised stem sections, terminal cuttings, and decapitated plants of a green dwarf pea results in a markedly synergistic growth response to these hormones. Synergism in green tall pea stem sections is comparatively small, although growth is kinetically indistinguishable from similarly treated dwarf sections.Gibberellin-induced gro...

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...

[2',2'-(2)H(2)]-indole-3-acetic acid ([2',2'-(2)H(2)]IAA) was prepared in an easy and efficient manner involving base-catalyzed hydrogen/deuterium exchange. 1-O-([2',2'-(2)H(2)]-indole-3-acetyl)-beta-D-glucopyranose, [2',2'-(2)H(2)]-2-oxoindole-3-acetic acid, and 1-O-([2',2'-(2)H(2)]-2-oxoindole-3-acetyl)-beta-D-glucopyranose were also successfully synthesized from deuterated IAA, and effective...

Herein we report the first Ru-catalyzed C-H arylation of benzoic acids with readily available aryl (pseudo)halides. The reaction, which does not require the use of silver salt additives, allows the arylation of previously challenging hindered benzoic acids and the use of generally unreactive ortho-substituted halorarenes. Furthermore, our new protocol can efficiently be applied to indole carbox...

Azotobacter spp. are known for their ability to fix nitrogen into the soil non-symbiotically. Their activities can be enhanced through provision of optimum cultural conditions. Hence, this study aimed isolate and optimize growth (medium condtions) with a focus on pH, sucrose indole acetic acid (IAA) concentrations. The counts obtained from rhizosphere crops ranged 4.0 × 104 – 1.0 106 CFU/g. thr...

drought tolerances of 55 indigenous strains of pseudomonas fluorescens were evaluated. to assess the tolerance rate of the strains to various levels of water deficit, their growth rate in nb medium containing concentrations of 40.587, 438.838 and 548.838 g of polyethylene glycol 6000 per liter of medium were utilized. water potentials of aforesaid levels were estimated as 0, - 10, - 20 and -30 ...

Indole is a benzopyrrole in which the benzene and pyrrole rings are fused through the 2-and 3-positions of the pyrrole nucleus. The indole derivatives are very much used as anticonvulsant agents. In the same context, several indole derivatives were prepared by the reaction between indole-3carboxaldehyde and various p-substituted phenylsemicarbazides, in the presence of glacial acetic acid. The ...