Succession of Microbial Community in Gray Forest Soil during the Decomposition of Different Organic Compounds
- Authors: Khomutova T.E.1, Dushchanova K.S.2, Smirnov V.E.3,4, Borisov A.V.1
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Affiliations:
- Institute of Physicochemical and Biological Problems in Soil Science, Russian Academy of Sciences
- Pushchino State Institute of Natural Sciences
- Center for Ecological Problems and Productivity of Forests, Russian Academy of Sciences
- Institute of Mathematical Problems of Biology–Branch of the Keldysh Federal Research Center of the Institute of Applied Mathematics, Russian Academy of Sciences
- Issue: Vol 52, No 8 (2019)
- Pages: 963-970
- Section: Soil Biology
- URL: https://journals.rcsi.science/1064-2293/article/view/225144
- DOI: https://doi.org/10.1134/S1064229319080088
- ID: 225144
Cite item
Abstract
In a model laboratory experiment on gray forest soil, the succession of microbial communities during the decomposition of proteins, lipids, and polysaccharides was studied. Proteins were mineralized during the first three months; active decomposition of lipids started two months after the beginning of the experiment. Differences in the functional diversity of microbial communities during the succession were revealed using the method of multisubstrate testing of respiration activity. Microbial respiratory responses to introduction of nitrogen-containing compounds (amino acids) were the highest in variants with decomposition of nitrogen-free compounds and low in protein variants. The ratio of respiratory responses of microbial communities to introduction of carboxylic acids to that of amino acids characterized the nitrogen supply in the soil. This parameter may be useful for reconstruction of initial presence of organic materials in various archaeological contexts.
About the authors
T. E. Khomutova
Institute of Physicochemical and Biological Problems in Soil Science, Russian Academy of Sciences
Author for correspondence.
Email: khomutova-t@rambler.ru
Russian Federation, Pushchino, Moscow oblast, 142290
K. S. Dushchanova
Pushchino State Institute of Natural Sciences
Email: khomutova-t@rambler.ru
Russian Federation, Pushchino, Moscow oblast, 142290
V. E. Smirnov
Center for Ecological Problems and Productivity of Forests, Russian Academy of Sciences; Institute of Mathematical Problems of Biology–Branch of the Keldysh Federal Research Center of the Institute of Applied Mathematics, Russian Academy of Sciences
Email: khomutova-t@rambler.ru
Russian Federation, Moscow, 117997; Pushchino, Moscow oblast, 142290
A. V. Borisov
Institute of Physicochemical and Biological Problems in Soil Science, Russian Academy of Sciences
Email: khomutova-t@rambler.ru
Russian Federation, Pushchino, Moscow oblast, 142290
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