[A change of sensitivity threshold of Apis mellifera to action of pathogen at different periods of starvation].

The work studies thresholds of sensitivity in the honeybee Apis mellifera in connection with action of different periods of starvation on biochemical and cellular parameters of protective reactions. Intraspecies differences are shown during additional action of a bacterial preparation at the physiological level. An importance of the hidden (latent) phase for the insects is evaluated in manifestation of the general adaptive syndrome, which precedes the phase of anxiety development. The intraspecies peculiarities of response of protective systems in the honeybee consist not only in the activity level of physiological processes, but also in the rate of overcoming the sensitivity threshold to pathogen.

[Local honeybee (Apis mellifera mellifera L.) populations in the Urals].

The COI-COII intergenic region of mitochondrial DNA (mtDNA) was studied in local honeybee (Apis mellifera mellifera) L. populations from the Middle and Southern Urals. Analysis of bee colonies in these regions revealed apiaries enriched in families descending from A. m. mellifera in the maternal lineage. These results confirm the suggestion of preservation of A. m. mellifera refuges in the Urals and provide grounds for work on the preservation of the gene pool of this bee variety, valuable for all Russia.