Characterization of exopolysaccharides produced by rhizobacteria

Bacteria isolated from the rhizosphere, the rhizobacteria, of sorghum, pearl millet, wheat, alfalfa and rice were screened for the production of exopolysaccharide (EPS). Nearly a quarter of the strains produced exopolysaccharides, either capsular or hydrosoluble slime. A majority of the isolates pro...

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Bibliographic Details
Published in:Applied microbiology and biotechnology 1992-01, Vol.38 (2), p.248-253
Main Authors: Hebbar, K.P, Gueniot, B, Heyraud, A, Colin-Morel, P, Heulin, T, Balandreau, J, Rinaudo, M
Format: Article
Language:English
Subjects:
Biological and medical sciences
Biology of microorganisms of confirmed or potential industrial interest
Biotechnology
characterization
Fundamental and applied biological sciences. Psychology
industrial applications
Medicago sativa
Mission oriented research
nitrogen-fixing bacteria
Oryza sativa
Pennisetum glaucum
physical properties
Physiology and metabolism
polysaccharides
rheological properties
Rhizobium
rhizosphere
screening
soil bacteria
Sorghum bicolor
Triticum aestivum
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Summary:Bacteria isolated from the rhizosphere, the rhizobacteria, of sorghum, pearl millet, wheat, alfalfa and rice were screened for the production of exopolysaccharide (EPS). Nearly a quarter of the strains produced exopolysaccharides, either capsular or hydrosoluble slime. A majority of the isolates produced slime. Physico-chemical analyses have indicated the ability of certain diazotrophic Pseudomonas paucimobilis isolates from millets and sorghum to produce unique types of EPS, which are highly viscous and thermostable.
ISSN:0175-7598
1432-0614
DOI:10.1007/BF00174477