Mikrobiol. Z. 2017; 79(2):78-85. Ukrainian.
doi: https://doi.org/10.15407/microbiolj79.02.078

Biotechnological Multifunctionality of Metabolic Spore-Crystal Complex and
Peculiarities of Bacillus thuringiensis Cultivation

Patyka Т.І., Boyko М.V., Patyka N.V.

National University of Life and Environmental Sciences of Ukraine
13 Heroyiv Oborony Str., Kyiv, 03041, Ukraine

The data on multifunctional properties of natural bacterial strains B. thuringiensis var. thuringiensis with entomotoxic and antifungal effects on larvae of Leptinotarsa decemlineata Say. and phytopathogenic micromycetes Venturia ssp., isolated from planting of stone fruit crops are presented. It is shown that aksenic culture strain B. thuringiensis № 87/3 after in vitro selection has high potential of effciency (titer metabolic sporecrystal complex is from 3.0 to 3.6 billion/ml culture fuid) insecticidal (96.0 - 97.0 %) and antifungal action,which manifested in changes of morphogenesis of micromycetes and the inhibition of germination of conidia within 86 - 93 %.

Key words: B. thuringiensis var. thuringiensis, spore-crystal complex, entomotoxic action, antifungal effect.

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