1 research outputs found
CHARACTERISTICS OF SOIL ACTINOMYCETES FROM ANTARCTICA
Forty-seven actinomyces strains were isolated from Antarctic soils -
nineteen of them showed antagonistic activity against Gram-positive and
Gram-negative bacteria. Six of the strains possessed a broad spectrum
of antibacterial activity. Results obtained from the physiological and
biochemical analyses including determination of 39 characteristics
proved that two of the strains (23 and 29) were similar whereas all the
rest differed among each other. Morphological studies indicated that
the strains belonged to the genera Streptomyces , Actinomadura and
Kitasatosporia . Antibacterial activity of three actinomycetes strains
(designed as 29, 30 and 47) was confirmed in batch culture. They were
active against clinical isolates from the species Staphylococcus aureus
and Streptococcus pneumoniae. The three strains also showed
antibacterial activity against the phytopathogenic bacteria Xanthomonas
axonopodis pv. glycines, X. vesicatoria, X. axonopodis pv. phaseoli,
Pseudomonas syringae pv. tomato and Clavibacter michiganensis , for
which no biological means for control, had been developed yet. The
broadest spectrum of antibacterial action had the strain 29. The
antibacterial compounds produced by these strains probably possessed
non-polar structure and consisted of several active components