Isolation, Characterization and Screening for Antimicrobial Activities of Psychrotolerant Streptomycetes Isolated from Polar Permafrost Soil

D. LyutskanovaBulgarian Academy of Sciences, The Stefan Angeloff Institute of Microbiology, Acad. G. Bonchev str. Bl. 26, 1113Sofia, BulgariaCorrespondence[email protected]

V. IvanovaBulgarian Academy of Sciences, The Stefan Angeloff Institute of Microbiology, Acad. G. Bonchev str. Bl. 26, 1113Sofia, Bulgaria

M. Stoilova-DishevaBulgarian Academy of Sciences, The Stefan Angeloff Institute of Microbiology, Acad. G. Bonchev str. Bl. 26, 1113Sofia, Bulgaria

M. KolarovaBulgarian Academy of Sciences, The Stefan Angeloff Institute of Microbiology, Acad. G. Bonchev str. Bl. 26, 1113Sofia, Bulgaria

K. AleksievaBulgarian Academy of Sciences, The Stefan Angeloff Institute of Microbiology, Acad. G. Bonchev str. Bl. 26, 1113Sofia, Bulgaria

V. RaykovskaBulgarian Academy of Sciences, The Stefan Angeloff Institute of Microbiology, Acad. G. Bonchev str. Bl. 26, 1113Sofia, Bulgaria

V. PeltekovaBulgarian Academy of Sciences, The Stefan Angeloff Institute of Microbiology, Acad. G. Bonchev str. Bl. 26, 1113Sofia, Bulgaria

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ABSTRACT

Ninety one streptomycetes strains were isolated from permafrost soil in Spitsbergen, Arctic Ocean. Five of them showed antimicrobial activity against Gram-positive, Gram-negative bacteria, yeasts and fungi. The strains were psychrotolerant with growth at temperatures between 4°C and 28°C. Morphological, physiological and biochemical characterizations were investigated and the starins could be affiliated to the same genus. Antibiotic production of the strains was investigated at 4°C and the active compouds were isolated from the culture filtrate. Strong activity of the isolated compounds against bacteria, yeast and fungi was detected.

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Isolation, Characterization and Screening for Antimicrobial Activities of Psychrotolerant Streptomycetes Isolated from Polar Permafrost Soil

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Isolation, Characterization and Screening for Antimicrobial Activities of Psychrotolerant Streptomycetes Isolated from Polar Permafrost Soil

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