Draft Genome Sequence of
            <i>Hymenobacter</i>
            sp. Strain IS2118, Isolated from a Freshwater Lake in Schirmacher Oasis, Antarctica, Reveals Diverse Genes for Adaptation to Cold Ecosystems

Koo, Hyunmin; Ptacek, Travis; Crowley, Michael R.; Swain, Ashit K.; Osborne, John D.; Bej, Asim K.; Andersen, Dale T.

doi:10.1128/genomea.00739-14

Cited by 10 publications

(6 citation statements)

References 15 publications

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“…Additionally, we identified 38 genes for the metabolism of terpenoids and polyketides, 29 genes for xenobiotic biodegradation and metabolism, 43 genes related to DNA replication and repair (UvrABC system, recA , and MutS), and 29 genes related to membrane transport (including 16 ABC transporters, 11 secretory systems, and 2 manganese transporters of the natural resistance-associated macrophage protein [NRAMP] family). Similar to what was reported recently for a different Hymenobacter isolate ( 7 ), we found 4 teichoic and 3 lipoteichoic biosynthesis genes, which are characteristically present in Gram-positive organisms, although AT01-02 is Gram negative. Interestingly, 16 genes indicated the presence of bacteriophage (including 9 integrase, 5 transposase, 1 terminase, and 1 lamin tail domain), which is related to low optical densities obtained with liquid cultures, and to a clear center observed in old colonies grown on agar plates.…”

Section: Genome Announcementsupporting

confidence: 90%

Draft Genome Sequence of Hymenobacter sp. Strain AT01-02, Isolated from a Surface Soil Sample in the Atacama Desert, Chile

et al. 2016

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Section: Genome Announcementsupporting

confidence: 90%

Draft Genome Sequence of Hymenobacter sp. Strain AT01-02, Isolated from a Surface Soil Sample in the Atacama Desert, Chile

et al. 2016

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“…Contrarily, the coldest mat ( i.e. , Mat-3) was characterized by a relatively higher proportion of the bacterial orders Flavobacteriales and Cytophagales , and the fungal order Rhizophydiales , previously described as cold tolerant or psychrophiles (Koo et al , 2014; Králová, 2017; Rojas-Jimenez et al , 2017).…”

Section: Discussionmentioning

confidence: 99%

Biomarker Profiling of Microbial Mats in the Geothermal Band of Cerro Caliente, Deception Island (Antarctica): Life at the Edge of Heat and Cold

et al. 2019

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Substrate-atmosphere interfaces in Antarctic geothermal environments are hot-cold regions that constitute thin habitable niches for microorganisms with possible counterparts in ancient Mars. Cerro Caliente hill in Deception Island (active volcano in the South Shetland Islands) is affected by ascending hydrothermal fluids that form a band of warm substrates buffered by low air temperatures. We investigated the influence of temperature on the community structure and metabolism of three microbial mats collected along the geothermal band of Cerro Caliente registering 88°C, 8°C, and 2°C at the time of collection. High-throughput sequencing of small subunit ribosomal ribonucleic acid (SSU rRNA) genes and Life Detector Chip (LDChip) microarray immunoassays revealed different bacterial, archaeal, and eukaryotic composition in the three mats. The mat at 88°C showed the less diverse microbial community and a higher proportion of thermophiles (e.g., Thermales). In contrast, microbial communities in the mats at 2°C and 8°C showed relatively higher diversity and higher proportion of psychrophiles (e.g., Flavobacteriales). Despite this overall association, similar microbial structures at the phylum level (particularly the presence of Cyanobacteria) and certain hot-and cold-tolerant microorganisms were identified in the three mats. Daily thermal oscillations recorded in the substrate over the year (4.5-76°C) may explain the coexistence of microbial fingerprints with different thermal tolerances. Stable isotope composition also revealed metabolic differences among the microbial mats. Carbon isotopic ratios suggested the Calvin-Benson-Bassham cycle as the major pathway for carbon dioxide fixation in the mats at 2°C and 8°C, and the reductive tricarboxylic acid cycle and/or the 3-hydroxypropionate bicycle for the mat at 88°C, indicating different metabolisms as a function of the prevailing temperature of each mat. The comprehensive biomarker profile on the three microbial mats from Cerro Caliente contributes to unravel the diversity, composition, and metabolism in geothermal polar sites and highlights the relevance of geothermal-cold environments to create habitable niches with interest in other planetary environments.

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“…However, it seems that strain MC1A has a higher number of UV-resistant genes than other strains. For example, strain IS2118 has only 51 genes related to DNA repair including rec and uvr system [6] .…”

Section: Discussionmentioning

confidence: 99%

Draft genome sequence of strain MC1A, a UV-resistant bacterium isolated from dry soil in Puerto Rico

2016

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We report here the draft genome sequence of a novel UV-resistant bacterium isolated from dry soil on the south coast of Puerto Rico. Based on polyphasic taxonomy, strain MC1A represents a new species and the name Solirubrum puertoriconensis is proposed. Assembly was performed using NGEN Assembler into eight contigs (N50 = 1,292,788), the largest of which included 1,549,887 bp. The draft genome consists of 4,810,875 bp and has a GC content of 58.7%. Several genes related to DNA repair and UV resistance were found. The Whole Genome Shotgun project is available at DDBJ/EMBL/GenBank under the accession LNAL00000000.

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Draft Genome Sequence of Hymenobacter sp. Strain IS2118, Isolated from a Freshwater Lake in Schirmacher Oasis, Antarctica, Reveals Diverse Genes for Adaptation to Cold Ecosystems

Cited by 10 publications

References 15 publications

Draft Genome Sequence of Hymenobacter sp. Strain AT01-02, Isolated from a Surface Soil Sample in the Atacama Desert, Chile

Draft Genome Sequence of Hymenobacter sp. Strain AT01-02, Isolated from a Surface Soil Sample in the Atacama Desert, Chile

Biomarker Profiling of Microbial Mats in the Geothermal Band of Cerro Caliente, Deception Island (Antarctica): Life at the Edge of Heat and Cold

Draft genome sequence of strain MC1A, a UV-resistant bacterium isolated from dry soil in Puerto Rico

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