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Editorial Board Members' Collection Series: Biology, Diversity, and Ecology of...
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Editorial Board Members' Collection Series: Biology, Diversity, and Ecology of Methanotrophic Bacteria

A special issue of Microorganisms (ISSN 2076-2607). This special issue belongs to the section "Environmental Microbiology".

Deadline for manuscript submissions: closed (30 November 2023) | Viewed by 3732

Special Issue Editors

Dr. Svetlana N. Dedysh

E-Mail Website
Guest Editor
Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, 117 901 Moscow, Russia
Interests: microbiology of wetlands; acidic peatlands; methanotrophic bacteria; ecology of methanotrophs; planctomycetes; acidobacteria; bacterial systematics
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Marina G. Kalyuzhnaya

E-Mail Website
Guest Editor
Department of Biology, San Diego State University, San Diego, CA 92182-4614, USA
Interests: single carbon cycling; plant-methanotroph interaction; synthetic methanotrophy; novel methanotrophic traits; symbiosis; methane driven N2-fixation; C1-microbial networks; metagenomics and multi-omics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to announce this Collection titled “Editorial Board Members' Collection Series: Biology, Diversity, and Ecology of Methanotrophic Bacteria”, which will collect papers invited by the Editorial Board Members.

This issue will be a collection of research papers in all disciplines relating to biology, metabolic and taxonomic diversity, ecology and environmental importance, as well as the biotechnological potential of methanotrophic bacteria. All papers will be fully open access upon publication after peer review.

Dr. Svetlana N. Dedysh
Prof. Dr. Marina G. Kalyuzhnaya
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Microorganisms is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (3 papers)

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Research

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17 pages, 3948 KiB  
Article
Interactions between Cyanobacteria and Methane Processing Microbes Mitigate Methane Emissions from Rice Soils
by Germán Pérez, Sascha M. B. Krause, Paul L. E. Bodelier, Marion Meima-Franke, Leonardo Pitombo and Pilar Irisarri
Microorganisms 2023, 11(12), 2830; https://doi.org/10.3390/microorganisms11122830 - 21 Nov 2023
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Abstract
Cyanobacteria play a relevant role in rice soils due to their contribution to soil fertility through nitrogen (N2) fixation and as a promising strategy to mitigate methane (CH4) emissions from these systems. However, information is still limited regarding the [...] Read more.
Cyanobacteria play a relevant role in rice soils due to their contribution to soil fertility through nitrogen (N2) fixation and as a promising strategy to mitigate methane (CH4) emissions from these systems. However, information is still limited regarding the mechanisms of cyanobacterial modulation of CH4 cycling in rice soils. Here, we focused on the response of methane cycling microbial communities to inoculation with cyanobacteria in rice soils. We performed a microcosm study comprising rice soil inoculated with either of two cyanobacterial isolates (Calothrix sp. and Nostoc sp.) obtained from a rice paddy. Our results demonstrate that cyanobacterial inoculation reduced CH4 emissions by 20 times. Yet, the effect on CH4 cycling microbes differed for the cyanobacterial strains. Type Ia methanotrophs were stimulated by Calothrix sp. in the surface layer, while Nostoc sp. had the opposite effect. The overall pmoA transcripts of Type Ib methanotrophs were stimulated by Nostoc. Methanogens were not affected in the surface layer, while their abundance was reduced in the sub surface layer by the presence of Nostoc sp. Our results indicate that mitigation of methane emission from rice soils based on cyanobacterial inoculants depends on the proper pairing of cyanobacteria–methanotrophs and their respective traits. Full article
(This article belongs to the Special Issue Editorial Board Members' Collection Series: Biology, Diversity, and Ecology of Methanotrophic Bacteria)
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16 pages, 4717 KiB  
Article
One Step Closer to Enigmatic USCα Methanotrophs: Isolation of a Methylocapsa-like Bacterium from a Subarctic Soil
by Olga V. Danilova, Igor Y. Oshkin, Svetlana E. Belova, Kirill K. Miroshnikov, Anastasia A. Ivanova and Svetlana N. Dedysh
Microorganisms 2023, 11(11), 2800; https://doi.org/10.3390/microorganisms11112800 - 17 Nov 2023
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Abstract
The scavenging of atmospheric trace gases has been recognized as one of the lifestyle-defining capabilities of microorganisms in terrestrial polar ecosystems. Several metagenome-assembled genomes of as-yet-uncultivated methanotrophic bacteria, which consume atmospheric CH4 in these ecosystems, have been retrieved in cultivation-independent studies. In [...] Read more.
The scavenging of atmospheric trace gases has been recognized as one of the lifestyle-defining capabilities of microorganisms in terrestrial polar ecosystems. Several metagenome-assembled genomes of as-yet-uncultivated methanotrophic bacteria, which consume atmospheric CH4 in these ecosystems, have been retrieved in cultivation-independent studies. In this study, we isolated and characterized a representative of these methanotrophs, strain D3K7, from a subarctic soil of northern Russia. Strain D3K7 grows on methane and methanol in a wide range of temperatures, between 5 and 30 °C. Weak growth was also observed on acetate. The presence of acetate in the culture medium stimulated growth at low CH4 concentrations (~100 p.p.m.v.). The finished genome sequence of strain D3K7 is 4.15 Mb in size and contains about 3700 protein-encoding genes. According to the result of phylogenomic analysis, this bacterium forms a common clade with metagenome-assembled genomes obtained from the active layer of a permafrost thaw gradient in Stordalen Mire, Abisco, Sweden, and the mineral cryosol at Axel Heiberg Island in the Canadian High Arctic. This clade occupies a phylogenetic position in between characterized Methylocapsa methanotrophs and representatives of the as-yet-uncultivated upland soil cluster alpha (USCα). As shown by the global distribution analysis, D3K7-like methanotrophs are not restricted to polar habitats but inhabit peatlands and soils of various climatic zones. Full article
(This article belongs to the Special Issue Editorial Board Members' Collection Series: Biology, Diversity, and Ecology of Methanotrophic Bacteria)
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Review

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22 pages, 929 KiB  
Review
State-of the-Art Constraint-Based Modeling of Microbial Metabolism: From Basics to Context-Specific Models with a Focus on Methanotrophs
by Mikhail A. Kulyashov, Semyon K. Kolmykov, Tamara M. Khlebodarova and Ilya R. Akberdin
Microorganisms 2023, 11(12), 2987; https://doi.org/10.3390/microorganisms11122987 - 14 Dec 2023
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Abstract
Methanotrophy is the ability of an organism to capture and utilize the greenhouse gas, methane, as a source of energy-rich carbon. Over the years, significant progress has been made in understanding of mechanisms for methane utilization, mostly in bacterial systems, including the key [...] Read more.
Methanotrophy is the ability of an organism to capture and utilize the greenhouse gas, methane, as a source of energy-rich carbon. Over the years, significant progress has been made in understanding of mechanisms for methane utilization, mostly in bacterial systems, including the key metabolic pathways, regulation and the impact of various factors (iron, copper, calcium, lanthanum, and tungsten) on cell growth and methane bioconversion. The implementation of -omics approaches provided vast amount of heterogeneous data that require the adaptation or development of computational tools for a system-wide interrogative analysis of methanotrophy. The genome-scale mathematical modeling of its metabolism has been envisioned as one of the most productive strategies for the integration of muti-scale data to better understand methane metabolism and enable its biotechnological implementation. Herein, we provide an overview of various computational strategies implemented for methanotrophic systems. We highlight functional capabilities as well as limitations of the most popular web resources for the reconstruction, modification and optimization of the genome-scale metabolic models for methane-utilizing bacteria. Full article
(This article belongs to the Special Issue Editorial Board Members' Collection Series: Biology, Diversity, and Ecology of Methanotrophic Bacteria)
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