Antibiotic activity of bacterial endobionts of basidiomycete fruit bodies

Bacterial strains (93 isolates) capable of growth on full-strength nutrient media were isolated from 86 fungal fruit bodies collected in the Moscow region. Antimicrobial activity of the endobiont isolates against 12 bacterial and fungal test strains (including drug-resistant ones) was studied in sub...

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Bibliographic Details
Published in:Microbiology (New York) 2016-11, Vol.85 (6), p.752-758
Main Authors: Efimenko, T. A., Malanicheva, I. A., Vasil’eva, B. F., Glukhova, A. A., Sumarukova, I. G., Boikova, Yu. V., Malkina, N. D., Terekhova, L. P., Efremenkova, O. V.
Format: Article
Language:English
Subjects:
Achromobacter
Antibiotics
Antifungal activity
Antimicrobial activity
Bacillus subtilis
Bacteriology
Basidiomycetes
Biomedical and Life Sciences
Ewingella americana
Experimental Articles
Hafnia
Life Sciences
Medical Microbiology
Microbiology
Micrococcus
Nocardia
Physical characteristics
Pseudomonas
Stenotrophomonas maltophilia
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Summary:Bacterial strains (93 isolates) capable of growth on full-strength nutrient media were isolated from 86 fungal fruit bodies collected in the Moscow region. Antimicrobial activity of the endobiont isolates against 12 bacterial and fungal test strains (including drug-resistant ones) was studied in submerged cultures. Most of the strains (84.9%) were found to produce antibiotic compounds with different antimicrobial properties, including antifungal activity in 18.3% of the strains. Morphological characteristics and analysis of the 16S rRNA gene sequences were used to determine the taxonomic position of 16 bacterial strains of the following 10 species: Bacillus subtilis , Ewingella americana , Pseudomonas sp., Stenotrophomonas maltophilia , as well as Achromobacter spanius , B. licheniformis , Hafnia paralvei , Micrococcus terreus , Nocardia coeliaca , and St. rhizophila , which have not been previously known to be endobionts of basidiomycete fruit bodies. Antimicrobial activity of A. spanius , E. americana , H. paralvei , M. terreus , N. coeliaca , and St. rhizophila has not been reported previously. Complex mechanisms of symbiotic relations between fungi and bacteria, including those associated with antibiotic formation, probably developed in the course of co-evolution.
ISSN:0026-2617
1608-3237
DOI:10.1134/S0026261716060084