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Isolation and characterization of phorate degrading soil bacteria of environmental and agronomic significance.
- Source :
-
Letters in applied microbiology [Lett Appl Microbiol] 2003; Vol. 36 (6), pp. 349-53. - Publication Year :
- 2003
-
Abstract
- Phorate [O,O-diethyl-S-(ethylthio)methyl phosphoradiothioate] degrading bacteria were isolated from agricultural soil and characterized based on their morphological and biochemical characteristics. The selected isolates PS-1, PS-2 and PS-3 were presumptively identified as Rhizobium, Pseudomonas and Proteous species, respectively. The HPLC analysis of phorate in bioaugmented soil revealed its complete disappearance within 40 days. The degradation isotherms of the isolates PS-1, PS-2 and PS-3 suggested time-dependent disappearance of phorate following the first order rate kinetics at the corresponding rate constants of 0.04, 0.05 and 0.04 days-1. Besides, the isolates concurrently exhibited substantial phosphate solubilization, indole acetic acid, and siderophore production. The isolate PS-3 also showed anti-fungal activity against a phytopathogen Fusarium oxysporum. As a result of the multifarious biological properties, the isolates have been suggested to be important bioresource for efficient bioinoculant development.
- Subjects :
- Agriculture
Antibiosis
Biodegradation, Environmental
Fusarium growth & development
Gram-Negative Bacteria growth & development
Indoleacetic Acids metabolism
Phosphates metabolism
Proteus classification
Proteus growth & development
Proteus isolation & purification
Pseudomonas classification
Pseudomonas isolation & purification
Rhizobium classification
Rhizobium isolation & purification
Siderophores metabolism
Soil Pollutants metabolism
Gram-Negative Bacteria classification
Gram-Negative Bacteria isolation & purification
Insecticides metabolism
Phorate metabolism
Soil Microbiology
Subjects
Details
- Language :
- English
- ISSN :
- 0266-8254
- Volume :
- 36
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Letters in applied microbiology
- Publication Type :
- Academic Journal
- Accession number :
- 12753240
- Full Text :
- https://doi.org/10.1046/j.1472-765x.2003.01329.x