ЭКСПЕРИМЕНТАЛЬНЫЕ ЦИАНОАКТИНОМИЦЕТНЫЕ АССОЦИАЦИИ

Associations of cyanobacteria with actinomycetes are not investigated. The task was set in this work to study the biological aspects of coexistence of free-living cyanobacterium Anabaena variabilis with actinomycetes isolated from corraloid roots of Strangeria eriopus и Cycas micho- litzii and cyanobacterium Oscillatoria terebriformis (Ag.) Elenk. emend., which were isolated from the natural cyano-bacterial mat of Kamchatkan thermal spring, with actinomycetes, isolated from accumulating culture of cyanobacterium. Positive tropism of streptomycetes hyphes to the cya- nobacterial trichoms and cyanobacterium to streptomycetes were observed. Stimulation of growth of O. terebriformis in the associated culture with the streptomycete was marked. The increase of the fixation of nitrogen by A. variabilis and of photosynthetic activity by O. terebriformis in the associated culture with the streptomycete was marked. On this background associative interaction cyanobacteria with streptomycetes are positively discussing.