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Environmental Adaptation of Psychrophilic Bacteria Subtercola spp. Isolated from Various Cryospheric Habitats

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Title
Environmental Adaptation of Psychrophilic Bacteria Subtercola spp. Isolated from Various Cryospheric Habitats
Other Titles
다양한 빙권 서식처에서 분리된 호냉성 세균 Subtercola spp.의 환경적응 연구
Authors
Cho, Yong-Joon
이한별
Cho, Ahnna
Kim, Ok-Sun
Keywords
AdaptationComparative genomicsCryosphereEcotypePsychrophile Subtercola spp.Transcriptome
Issue Date
2023
Citation
Cho, Yong-Joon, et al. 2023. "Environmental Adaptation of Psychrophilic Bacteria Subtercola spp. Isolated from Various Cryospheric Habitats". JOURNAL OF MICROBIOLOGY, 61(7): 663-672.
Abstract
Subtercola boreus K300T is a novel psychrophilic strain that was isolated from permanently cold groundwater in Finland and has also been found in several places in Antarctica including lake, soil, and rocks. We performed genomic and transcriptomic analyses of 5 strains from Antarctica and a type strain to understand their adaptation to different environments. Interestingly, the isolates from rocks showed a low growth rate and smaller genome size than strains from the other isolation sources (lake, soil, and groundwater). Based on these habitat-dependent characteristics, the strains could be classified into two ecotypes, which showed differences in energy production, signal transduction, and transcription in the clusters of orthologous groups of proteins (COGs) functional category. In addition, expression pattern changes revealed differences in metabolic processes, including uric acid metabolism, DNA repair, major facilitator superfamily (MFS) transporters, and xylose degradation, depending on the nutritional status of their habitats. These findings provide crucial insights into the environmental adaptation of bacteria, highlighting genetic diversity and regulatory mechanisms that enable them to thrive in the cryosphere.
URI
https://repository.kopri.re.kr/handle/201206/14923
DOI
http://dx.doi.org/10.1007/s12275-023-00068-y
Type
Article
Station
Jang Bogo Station
Indexed
SCIE
Appears in Collections  
2023-2023, Ecophysiology of Antarctic terrestrial organisms to reveal mechanisms of adaptation to changing environment (23-23) / Lee, Hyoungseok (PE23130)
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