Community Structure, Drivers, and Potential Functions of Different Lifestyle Viruses in Chaohu Lake

Zheng, Yu; Gao, Zihao; Wu, Shuai; Ruan, Aidong

doi:10.3390/v16040590

Viruses

2024

DOI: 10.3390/v16040590

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Community Structure, Drivers, and Potential Functions of Different Lifestyle Viruses in Chaohu Lake

Yu Zheng,

Zihao Gao,

Shuai Wu

et al.

Abstract: Viruses, as the most prolific entities on Earth, constitute significant ecological groups within freshwater lakes, exerting pivotal ecological roles. In this study, we selected Chaohu Lake, a representative eutrophic freshwater lake in China, as our research site to explore the community distribution, driving mechanisms, and potential ecological functions of diverse viral communities, the intricate virus–host interaction systems, and the overarching influence of viruses on global biogeochemical cycling.

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Cited by 3 publications

References 78 publications

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Eutrophication impacts the distribution and functional traits of viral communities in lakes

Zhang,

Xiong,

Zhang

et al. 2024

Science of The Total Environment

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Eutrophication impacts the distribution and functional traits of viral communities in lakes

Zhang,

Xiong,

Zhang

et al. 2024

Science of The Total Environment

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Virus ecology and 7‐year temporal dynamics across a permafrost thaw gradient

Sun,

Pratama,

Gazitúa

et al. 2024

Environmental Microbiology

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Soil microorganisms are pivotal in the global carbon cycle, but the viruses that affect them and their impact on ecosystems are less understood. In this study, we explored the diversity, dynamics, and ecology of soil viruses through 379 metagenomes collected annually from 2010 to 2017. These samples spanned the seasonally thawed active layer of a permafrost thaw gradient, which included palsa, bog, and fen habitats. We identified 5051 virus operational taxonomic units (vOTUs), doubling the known viruses for this site. These vOTUs were largely ephemeral within habitats, suggesting a turnover at the vOTU level from year to year. While the diversity varied by thaw stage and depth‐related patterns were specific to each habitat, the virus communities did not significantly change over time. The abundance ratios of virus to host at the phylum level did not show consistent trends across the thaw gradient, depth, or time. To assess potential ecosystem impacts, we predicted hosts in silico and found viruses linked to microbial lineages involved in the carbon cycle, such as methanotrophy and methanogenesis. This included the identification of viruses of Candidatus Methanoflorens, a significant global methane contributor. We also detected a variety of potential auxiliary metabolic genes, including 24 carbon‐degrading glycoside hydrolases, six of which are uniquely terrestrial. In conclusion, these long‐term observations enhance our understanding of soil viruses in the context of climate‐relevant processes and provide opportunities to explore their role in terrestrial carbon cycling.

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Metagenomic Analysis of Seasonal Variations in Viral Dynamics and Diversity in Seawater of Jeju Island, Republic of Korea

Hwang,

Oh,

Jin

2024

JMSE

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Jeju, the largest island in Korea, is the most economically important in terms of marine aquaculture. We investigated the marine viral composition adjacent to Jeju Island over four seasons in 2022 and sequenced DNA libraries extracted from samples in March, June, September, and December using Illumina HiSeq 2000. We obtained 212,402, 186,542, 235,441, and 224,513 contigs from the four-season samples, respectively. Among the identified metagenomes, bacteriophages were dominant in all the samples. Bacillus phage G was the dominant species in March and June, whereas Pelagibacter phage HTVC 008M was the dominant species in September and December. Additionally, the number of viruses that infected algal hosts was higher in December than in other seasons. Marine viruses appeared in all seasons and infected marine vertebrates such as fish. Functional analysis using MG-RAST revealed that cell wall- and capsule-related metabolism groups were activated in March and June, whereas virulence-, disease-, and defense-related metabolism groups were activated in September and December. Conclusively, this study revealed seasonal changes in marine viral communities in the sea adjacent to Jeju Island. Our data will be useful in identifying emerging marine viral pathogens and for further community studies on marine organisms.

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Community Structure, Drivers, and Potential Functions of Different Lifestyle Viruses in Chaohu Lake

Cited by 3 publications

References 78 publications

Eutrophication impacts the distribution and functional traits of viral communities in lakes

Eutrophication impacts the distribution and functional traits of viral communities in lakes

Virus ecology and 7‐year temporal dynamics across a permafrost thaw gradient

Metagenomic Analysis of Seasonal Variations in Viral Dynamics and Diversity in Seawater of Jeju Island, Republic of Korea

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