Impact of Environmental Factors on the Diversity and Structure of Bacterial and Eukaryotic Communities

A special issue of Life (ISSN 2075-1729). This special issue belongs to the section "Microbiology".

Deadline for manuscript submissions: 30 June 2026 | Viewed by 1201

Special Issue Editors


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Guest Editor
School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
Interests: environmental health; veterinary science; bioaerosols; infectious diseases; airborne transmission; air pollution; atmospheric science; one health
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Guest Editor
Faculty of Science, Academic Assembly, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
Interests: microbial ecology; atmospheric environments; aquatic environments; bacteria
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Environmental factors—such as climate change, pollution, land use, and nutrient availability—play a crucial role in shaping bacterial and eukaryotic communities across ecosystems. Understanding how these factors influence biodiversity, community assembly, and ecological interactions is essential for predicting ecosystem responses to global changes. This Special Issue invites the submission of original research and reviews exploring the effects of abiotic and biotic stressors on the diversity, composition, and function of bacterial and eukaryotic communities in terrestrial, aquatic, atmospheric, and host-associated environments. We welcome studies employing advanced molecular techniques (e.g., metagenomics, amplicon sequencing), bioinformatics, and ecological modeling to uncover the mechanistic drivers of community dynamics. Topics of interest include, but are not limited to, microbial resilience to environmental shifts, host–microbe–environment interactions, biogeographical patterns, and the role of keystone species in ecosystem stability. Contributions addressing conservation strategies, bioremediation, and climate adaptation are also encouraged.

Prof. Dr. Jun Noda
Prof. Dr. Daisuke Tanaka
Guest Editors

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Keywords

  • environmental factors
  • bacterial and eukaryotic communities
  • climate adaptation
  • pollution
  • microbial resilience
  • metagenomic analysis
  • amplicon sequencing
  • bioinformatics

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Published Papers (1 paper)

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Research

23 pages, 8420 KB  
Article
Bacterial Community Composition and Structure in the Littoral of Rila Mountains Glacial Lakes
by Boyanka Angelova, Silvena Boteva, Ivan Traykov, Martin Tsvetkov and Anelia Kenarova
Life 2025, 15(12), 1921; https://doi.org/10.3390/life15121921 - 15 Dec 2025
Cited by 1 | Viewed by 717
Abstract
High-mountain lakes are biodiversity hotspots sensitive to increasing regional and global climate warming. However, their microbial communities remain insufficiently characterized due to their remoteness and limited accessibility. This study aimed to determine how seasonal environmental parameters shape the composition, structure and diversity of [...] Read more.
High-mountain lakes are biodiversity hotspots sensitive to increasing regional and global climate warming. However, their microbial communities remain insufficiently characterized due to their remoteness and limited accessibility. This study aimed to determine how seasonal environmental parameters shape the composition, structure and diversity of littoral bacterial communities in three glacial lakes in Rila Mountains (Bulgaria). Water samples were collected during ice-free periods in 2023 and 2024, and bacterial taxonomic composition was analysed by Next-generation sequencing. A total of 1158 bacterial OTUs were identified encompassing 18 phyla and 165 families. Actinomycetota, Pseudomonadota, and Bacteroidota were dominant at the phylum level, and Sporichthyaceae, Comamonadaceae, Chitinophagaceae and Mycobacteriaceae were most abundant among the families. Community richness and diversity peaked in June, immediately after ice melting, particularly in the highest-altitude lake (Sulzata Lake), and declined during the warm season (August), when the relative abundances of Sporichthyaceae and Mycobacteriaceae (Actinomycetota) increased. Seasonal restructuring occurred across phyla and families even in a single taxon, with water temperature and organic carbon availability identified as the main environmental drivers. The findings have improved our understanding of temperature-driven bacterial responses. They have also highlighted the vulnerability of cold-adapted taxa to regional climate warming which may contribute to more effective biodiversity conservation strategies for these unique ecosystems. Full article
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