Ultrastructure of Panax ginseng cells and cyanobacteria Chlorogloeopsis fritschii in the association cultivated in darkness
1995
Baulina, O.I. | Lobakova, E.S. | Korzhenevskaya, T.G. | Butenko, R.G. | Gusev, M.V.
The ultrastructure of ginseng cells and facultative photoprophic cyanobacteria C. frischii, growing in the association, was investigated. Positive interactions between ginseng cells and cyanobacteria were established when the association was grown under conditions non-optimal for the separate growth of each partner. The ginseng cells for 14 d of growth in the association preserved the specificity of their organization as terpenegenic ones. Additionally, under this conditions, they are possessed of more developed, relative to the growth in monoculture, system and membranes. The date of ultrastructural analysis and the growth characteristics revealed, that up to 14 d growth in the association with the population of ginseng cells reached the stage of growth and accumulation of biomass, and the growth of cyanobacteria is delayed, as compared to corresponding monocultures. In the association the mixed aggregates of ginseng cells and cyanobacteria are predominant; they are formed with the precipitation of acid polysaccharides and cyanobacteria sheaths. The relative increase of growth and retention of the level of terpene synthesis in ginseng cells in the medium with decreased sucrose content was accompanied by the destructive changes of cyanobacterial sheaths. The latter is supposed to result from the mechanisms of hydrolytic degradation and use of cyanobacterial sheath polysaccharides by both partners of the association as the additional carbon source
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