Laboratory Study of the Effect of Ammonium and Lanthanum Salts on Methane Oxidation and Composition of Microbial Communities in Soddy-Podzolic Soil

Assessment of the response of soil microbial communities, performing important ecological and biospheric functions, to natural or anthropogenic impacts is one of the promising approaches to solve the problems of stress resilience of ecosystems. A model experiment with soddy-podzolic soil (Eutric Alb...

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Bibliographic Details
Published in:Eurasian soil science 2023-05, Vol.56 (5), p.573-583
Main Authors: Kravchenko, I. K., Sizov, L. R., Lysak, L. V.
Format: Article
Language:English
Subjects:
Ammonium
Ammonium compounds
Anthropogenic factors
Bacteria
Earth and Environmental Science
Earth Sciences
Ecology of Soil Microorganisms
Ecosystem resilience
Geotechnical Engineering & Applied Earth Sciences
Gram-negative bacteria
Gram-positive bacteria
Human influences
Lanthanum
Methane
Methanotrophic bacteria
Microbial activity
Microbiomes
Microbiota
Microorganisms
Oxidation
Podzolic soils
Salts
Soil
Soil microorganisms
Soils
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Summary:Assessment of the response of soil microbial communities, performing important ecological and biospheric functions, to natural or anthropogenic impacts is one of the promising approaches to solve the problems of stress resilience of ecosystems. A model experiment with soddy-podzolic soil (Eutric Albic Retisol (Abruptic, Loamic)) has shown the inhibitory effect of ammonium and the stimulating effect of lanthanum on methane oxidation by soil microorganisms. The application of ammonium and lanthanum reduced the taxonomic diversity of the soil bacterial community and changed its structure: the relative content of gram-positive bacteria of Actinobacteriota and Bacillota phyla decreased, while the portion of gram-negative bacteria of the phylum Pseudomonadota increased. Applied lanthanum causes a significant (by several orders of magnitude) rise in the relative content of methanotrophs of Methylobacter genus and of obligate methylotrophs of Methylotenera genus in the community. The results of this work may be used to develop approaches for the control of the activity of the soil methane filter and of the accompanying microbiota.
ISSN:1064-2293
1556-195X
DOI:10.1134/S1064229322602773