Microbiological Characteristics of Bare Peat Circles on Flat-Topped Peat Mounds in the North of Western Siberia
- Authors: Yakushev A.V.1, Matyshak G.V.1, Tarkhov M.O.1, Kachalkin A.V.1,2, Sefilyan A.R.1, Petrov D.G.1
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Affiliations:
- Lomonosov Moscow State University
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Science
- Issue: Vol 52, No 9 (2019)
- Pages: 1081-1090
- Section: Soil Biology
- URL: https://journals.rcsi.science/1064-2293/article/view/225188
- DOI: https://doi.org/10.1134/S1064229319090114
- ID: 225188
Cite item
Abstract
A destructive peat horizon Tmd of bare peat circles on flat-topped peat mounds in the north of Western Siberia differs from peat horizons (T) of typical peat soils in its higher density, water content, and comminution of peat residues; lower microbial biomass; low mineralization and hydrolase activities; low physiological diversity of hydrolytic bacteria; and specific composition of the fungal complex with an uncharacteristically high proportion and quantity of psychrophilic yeasts Leucosporidium drummii. Specific respiration rate and hydrolase activity in the Tmd and T horizons are relatively close, which indicates that, in general, the metabolic activity of microorganisms decomposing the organic matter of peat and increasing the degree of peat decomposition remains unchanged in the soils of bare peat circles.
About the authors
A. V. Yakushev
Lomonosov Moscow State University
Author for correspondence.
Email: a_yakushev84@mail.ru
Russian Federation, Moscow, 119991
G. V. Matyshak
Lomonosov Moscow State University
Email: a_yakushev84@mail.ru
Russian Federation, Moscow, 119991
M. O. Tarkhov
Lomonosov Moscow State University
Email: a_yakushev84@mail.ru
Russian Federation, Moscow, 119991
A. V. Kachalkin
Lomonosov Moscow State University; Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Science
Email: a_yakushev84@mail.ru
Russian Federation, Moscow, 119991; Pushchino, Moscow oblast, 142290
A. R. Sefilyan
Lomonosov Moscow State University
Email: a_yakushev84@mail.ru
Russian Federation, Moscow, 119991
D. G. Petrov
Lomonosov Moscow State University
Email: a_yakushev84@mail.ru
Russian Federation, Moscow, 119991