Biodiversity, Adaptation and Biotechnological Importance of Bacteria Occurring in Cold Climates

Reddy, G. S. N.; Chattopadhyay, M. K.; Shivaji, Sisinthy

doi:10.1007/978-3-319-13521-2_2

Cited by 4 publications

(1 citation statement)

References 241 publications

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“…Metagenomes from Polar and high-altitude environments tend to be dominated by Pseudomonadota (Proteobacteria) and/or Actinomycetota (Actinobacteria; Glaring et al, 2015 ; Oh et al, 2019 ; Rai and Bhattacharjee, 2021 ; Zhang et al, 2021 ; Singh et al, 2022 ), indicating that these phyla are ubiquitously present in all cold habitats. Pseudomonadota, furthermore, seems to be relatively well represented among cultured isolates from polar regions in general ( Groudieva et al, 2004 ; Schmidt et al, 2006a ; García-Echauri et al, 2011 ; Sathyanarayana Reddy et al, 2016 ; Aguayo et al, 2017 ; Jaarsma et al, 2023 ). Attempts to bring more difficult-to-culture bacterial strains into culture have for years been carried out through, e.g., application of the iChip ( Nichols et al, 2010 ; Jaarsma et al, 2023 ) and similar co-culture approaches, where in situ nutrients and signaling molecules are made available to the microbial cultures through a diffusion membrane.…”

Section: Introductionmentioning

confidence: 99%

Investigating eukaryotic and prokaryotic diversity and functional potential in the cold and alkaline ikaite columns in Greenland

Thøgersen,

Zervas,

Stougaard

et al. 2024

Front. Microbiol.

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The ikaite columns in the Ikka Fjord, SW Greenland, represent a permanently cold and alkaline environment known to contain a rich bacterial diversity. 16S and 18S rRNA gene amplicon and metagenomic sequencing was used to investigate the microbial diversity in the columns and for the first time, the eukaryotic and archaeal diversity in ikaite columns were analyzed. The results showed a rich prokaryotic diversity that varied across columns as well as within each column. Seven different archaeal phyla were documented in multiple locations inside the columns. The columns also contained a rich eukaryotic diversity with 27 phyla representing microalgae, protists, fungi, and small animals. Based on metagenomic sequencing, 25 high-quality MAGs were assembled and analyzed for the presence of genes involved in cycling of nitrogen, sulfur, and phosphorous as well as genes encoding carbohydrate-active enzymes (CAZymes), showing a potentially very bioactive microbial community.

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