Functional Specificity in the Structure of Streptomycete Complexes in the Soils Contaminated with Heavy Metals
I. G. SHIROKIKH1,2, E. S. SOLOVYEVA1, T. J. ASHIHMINA1
a:2:{s:4:"TEXT";s:269:"1Institute of Biology Komi Scientific Center of Ural Division of RAS and Vyatka State University of Humanities, 610002, Kirov, Svobody str., 122
2N. V. Rudnitski Zonal North-East Agricultural Research Institute, 610007, Kirov, Leninа str., 166a";s:4:"TYPE";s:4:"html";}
Keywords: soils, heavy metals, Streptomyces, radial growth rate, frequency of occurrence, biomass, biosorption
Abstract
The data on growth kinetics of the representatives of the genus Streptomyces under the influence of lead, zinc and copper ions was used to show the differences in the functional structure of soil streptomycete complexes in ecotopes with various degrees of heavy metal pollution. We compared streptomycetes obtained from moderately (residential zone, garden patches) and severely polluted soils (traffic zone, industrial area) with streptomycetes taken on the background site. As the result, the former showed higher radial growth rate under the influence of 3 mg/l of metal ions and lower biomass accumulation in liquid medium supplemented with 10 mg/l of Pb2+ than the latter.
DOI: http://dx.doi.org/10.1134/S1995425515010138
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