Ecological analysis of the state of actinomycete complexes in biogeocenoses of drained lowland peatlands
1995
Zvyagintsev, D.G. | Zenova, G.M. | Shirokikh, I.G. | Likhacheva, A.A. | Gracheva, T.A.
Representatives of the genera Streptomyces, Micromonospora, Streptosporangium and actinomycetes, arbitrarily combined into a group of Micropolyspora, were found in actinomycete complexes of drained peatlands using selective techniques of actinomycete isolation and count. Actinomycete complexes of drained peat lands were characterized by a constant presence of saccharomonospores and micropolyspores rarely occuring in zonal soils, a predominance of micromonospores over streptomycetes, a high density and variability of actinomycetes throughout the soil profile. The peat bed exhaustion and subsequent recultivation disturbed the complex structure, namely the composition and density of dominants, a generic diversity, and relations between typical and random species. A vertical stratification of actinomycetes in biocenoses of drained peat lands was found out. It was characterized by a simultaneous continuity and discreteness of the distribution of actinomycete genera in the vertical steplike structure of biogeocenoses. A continuous distribution was peculiar of streptomycetes, the discreteness was observed in the distribution of other genera. It was shown that in the actinomycete complexes of drained peat lands, competitive relations were the most possible between mono- and oligosporous actinomycetes
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