Characterization of an antibiotic produced by a strain of Pseudomonas fluorescens inhibitory to Gaeumannomyces graminis var. tritici and Pythium spp

@article{Gurusiddaiah1986CharacterizationOA,
  title={Characterization of an antibiotic produced by a strain of Pseudomonas fluorescens inhibitory to Gaeumannomyces graminis var. tritici and Pythium spp},
  author={S. Gurusiddaiah and David M. Weller and A. Sarkar and Robert J. Cook},
  journal={Antimicrobial Agents and Chemotherapy},
  year={1986},
  volume={29},
  pages={488 - 495}
}
The production, isolation, and characterization of an antibiotic substance from cultures of Pseudomonas fluorescens 2-79 (NRRL B-15132) is described. P. fluorescens 2-79 originally was isolated from the roots of wheat and is suppressive to the wheat root disease take-all caused by Gaeumannomyces graminis var. tritici. The antibiotic was isolated from potato glucose broth cultures of strain 2-79 by solvent extraction. It was purified by silica gel column chromatography and was a greenish yellow… 
Role of a phenazine antibiotic from Pseudomonas fluorescens in biological control of Gaeumannomyces graminis var. tritici
TLDR
Results indicate that sequences required for phenazine production were present in the cloned DNA and support the importance of the phenazine antibiotic in disease suppression in the rhizosphere.
Production, purification, and characterization of antifungal metabolite from Pseudomonas aeruginosa SD12, a new strain obtained from tannery waste polluted soil.
TLDR
The strain was used as a biocontrol agent against root rot and wilt disease of pyrethrum caused by Rhizoctonia solani and showed broad-spectrum antagonistic activity towards a range of phytopathogenic fungi, which is the first report of its kind.
Chromatographic Detection of Antibacterial Antibiotics from Pseudomonas fluorescens (TNAU PF1) and Their Effect on Bacterial Wilt Pathogen Ralstonia solanacearum (KK2)
TLDR
The ability of crude antibiotics in inhibiting Ralstonia colonies was higher than the individual antibiotics (2,4-diacetylphloroglucinol and Phenazine) under in vitro.
Defined media for optimal pyoverdine production by Pseudomonas fluorescens 2-79
TLDR
A Plackett-Burman design was used to identity eight amino acids, out of the 19 present in casamino acids, that were responsible for the increased pyoverdine production: methionine, valine, isoleucine, tyrosine, proline, phenylalanine, glutamic acid, and glycine.
Production of the Antibiotic Phenazine-1-Carboxylic Acid by Fluorescent Pseudomonas Species in the Rhizosphere of Wheat
TLDR
In steamed and natural soils, roots from which the antibiotic was recovered had significantly less disease than roots with no antibiotic, indicating that suppression of take-all is related directly to the presence of the antibiotic in the rhizosphere.
Isolation and Identification of Antifungal 7 V-Butylbenzenesulphonamide Produced by Pseudomonas sp . AB 2
An antifungal bacterial strain, isolated from a greenhouse soil sample, inhibits growth of micro flora nearby. It was selected for further studies of bacterial antifungal properties. This isolate was
Revised structure for the phenazine antibiotic from Pseudomonas fluorescens 2-79 (NRRL B-15132)
TLDR
Data suggest that phenazine-1-carboxylic acid is probably not an effective biological control agent for phytopathogens in environments with a pH greater than 7.0, and that an authentic antibiotic obtained from D. M. Weller was indistinguishable in all of its measured physicochemical and biological properties.
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