Use of antagonistic bacilli for biocontrol of fungi degrading fresh wood |
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Authors: | A I Melent’ev P Helisto L Yu Kuz’mina N F Galimzyanova G E Aktuganov T Korpela |
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Institution: | (1) Institute of Biology, Ufa Scientific Center, Russian Academy of Sciences, Ufa, 450054 Bashkortostan, Russia;(2) Joint Finnish—Russian Biotechnological Laboratory, University of Turku, 20520 Turku, Finland |
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Abstract: | The species composition of micromycete complexes colonizing aspen, birch, and pine wood was studied. Calculation of the Sorens-Tchekanovsky similarity coefficients showed that these complexes shared a high degree of similarity. They were dominated by representatives of the genera Penicillium, Paecilomyces, Trichoderma, and Rhizopus. Some antagonistic bacilli inhibited growth and development of wood-decay fungi in vitro and led to the formation of spheroplasts on growing hyphae. A study of possible involvement of bacillary mycolytic enzymes in the inhibition of wood-decay fungi demonstrated selectivity of their lytic effect, which was determined by the genus and species of micromycetes and did not correlate with their relative resistance to antagonists. |
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