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Pseudomonas aeruginosa AK2 showed the best plant growth-promoting activity. These isolates were tested for their ability to produce indole acetic acid in pure culture in the absence and presence of L-tryptophan at. 50, 100, 200 and 500 µg/ml. For both strains, indole production increased with increases in tryptophan con-.
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Indigenous soil samples were tested for Phosphate solubilization. Efficient phosphate solubilizng bacteria were isolated. Effect of four different media on phosphate solubilization were determined. Auxin production by these bacteria were determined via bioassay and high performance liquid chromatography by the bacteria
Introduction. Plant growth promoting rhizobacteria (PGPR) are considered to promote plant growth directly or indirectly. PGPR can exhibit a variety of characteristics responsible for influencing plant growth. The common traits include production of plant growth regulators (auxin, gibberellin, ethylene etc.), siderophores, HCN
in the system examined, indole-3-acetic acid does not contribute to the biocontrol properties of strain CHA0. z 1999. Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved. Keywords: Pseudomonas ?uorescens; Biocontrol; Indole-3-acetic acid; Auxin; Root growth; Pythium
With event of time other applications have been studied includes resistance to pesticides, antibiotics like phosphonomycin, salt tolerance and pH tolerance. The microbes surrounding plants consist of rhizobia,. Indole acetic acid production from Pseudomonas species isolated from rhizosphere of garden plants in Amravati.
Indole acetic acid (IAA) production is a major property of rhizosphere bacteria that stimulate and facilitate plant growth. The present work deals with isolation, characterization and identification of indole acetic acid producing bacteria from the rhizospheric soil. Out of ten Indole acetic acid producing isolates, five were
Abstract. We have developed a new assay that differentiates between indoleacetic acid (IAA)-producing and -nonproducing bacteria on a colony plate lift. Medium supplemented with 5 mM L-tryptophan is inoculated with isolates of interest, overlaid with a nitrocellulose membrane, and then incubated until bacterial colonies
Indole-3-acetic acid (IAA) production was monitored in nine plant growth-promoting rhizobacteria isolated from the rhizospheric soil of alfalfa (Medicago sativa). The isolate producing maximum amount of IAA was identified as Pseudomonas putida UB1 by 16S rRNA partial gene sequencing. Further investigations were
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