Complete Genome Sequence of the Linear Plasmid pJD12 Hosted by
            <i>Micrococcus</i>
            sp. D12, Isolated from a High-Altitude Volcanic Lake in Argentina

Dib, Julián Rafael; Angelov, Angel; Liebl, Wolfgang; Döbber, Johannes; Voget, Sonja; Schuldes, Jörg; Gorriti, Marta Fabiana; Farı́as, Marı́a Eugenia; Meinhardt, Friedhelm; Daniel, Rolf

doi:10.1128/genomea.00627-15

Cited by 4 publications

(4 citation statements)

References 11 publications

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“…Microorganisms have evolved traits that allow them to cope with a wide range of environmental conditions. For example, chemoorganotrophic representatives of the genus Micrococcus (class Actinobacteria , family Micrococcaceae ) are commonly found in temperate soil ( 1 ), water ( 2 ), mammalian skin ( 3 ), Antarctic ice ( 4 ), and desert soil ( 5 ). Survival and reproduction in some of these habitats has been linked to the ability of Micrococcus spp.…”

Section: Genome Announcementmentioning

confidence: 99%

Whole-Genome Sequence of the Soil Bacterium Micrococcus sp. KBS0714

et al. 2017

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Section: Genome Announcementmentioning

confidence: 99%

Whole-Genome Sequence of the Soil Bacterium Micrococcus sp. KBS0714

et al. 2017

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“…The strains were taxonomically identified and characterized in terms of their resistance to environmental conditions such as arsenic, salt, UV and antibiotics , indicating that HAAL constitute an important reserve of genes and molecular mechanisms to counteract various stress factors. In the light of ongoing genomic/metagenomic projects , putative extremoenzymes and extremolytes produced by these microbes offer promising biotechnological applications that range from bioremediation and biomining to the production of important drugs.…”

Section: Polyextremophiles: When One Extreme Is Not Enoughmentioning

confidence: 99%

“…A1, L. Azul, planktonic), pJD12 (KR152226, Micrococcus sp. D12, red biofilm, L. Diamante) . Meanwhile, metagenomic shotgun sequencing is in progress.…”

Section: Concluding Remarks and Future Perspectivesmentioning

confidence: 99%

“…Accordingly, HAAL‐isolated strains display intrinsic high UV resistance that render models for studying adaptive responses and mechanisms that underlie light sensing and UV resistance in environmental microbes. In fact, the availability of genomes of model polyextremophilic microbes and several metagenomes of complex microbial communities in microbialites is providing a great opportunity to perform in‐depth basic and applied research .…”

Section: Introductionmentioning

confidence: 99%

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Forged Under the Sun: Life and Art of Extremophiles from Andean Lakes

Albarracín

Gärtner

Farı́as

2015

Photochem & Photobiology

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High-altitude Andean lakes (HAAL) are a treasure chest for microbiological research in South America. Their indigenous microbial communities are exposed to extremely high UV irradiation and to multiple chemical extremes (Arsenic, high salt content, alkalinity). Microbes are found both, free-living or associated into microbial mats with different degrees of mineralization and lithification, including unique modern stromatolites located at 3570 m above sea level. Characterization of these polyextremophilic microbes began only recently, employing morphological and phylogenetic methods as well as high-throughput sequencing and proteomics approach. Aside from providing a general overview on microbial communities, special attention is given to various survival strategies; HAAL's microbes present a complex system of shared genetic and physiological mechanisms (UV-resistome) based on UV photoreceptors and stress sensors with their corresponding response regulators, UV avoidance and protection strategies, damage tolerance and UV damage repair. Molecular information will be provided for what is, so far the most studied HAAL molecule, a CPD-Class I photolyase from Acinetobacter Ver3 (Laguna Verde, 4400 m). This work further proposes some strategies that make an appeal for the preservation of HAAL, a highly fragile environment that offers promising and ample research possibilities.

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Assessment of the plasmidome of an extremophilic microbial community from the Diamante Lake, Argentina

Perez

Saona

Farı́as

et al. 2021

Sci Rep

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Diamante Lake located at 4589 m.a.s.l. in the Andean Puna constitutes an extreme environment. It is exposed to multiple extreme conditions such as an unusually high concentration of arsenic (over 300 mg L−1) and low oxygen pressure. Microorganisms thriving in the lake display specific genotypes that facilitate survival, which include at least a multitude of plasmid-encoded resistance traits. Hence, the genetic information provided by the plasmids essentially contributes to understand adaptation to different stressors. Though plasmids from cultivable organisms have already been analyzed to the sequence level, the impact of the entire plasmid-borne genetic information on such microbial ecosystem is not known. This study aims at assessing the plasmidome from Diamante Lake, which facilitates the identification of potential hosts and prediction of gene functions as well as the ecological impact of mobile genetic elements. The deep-sequencing analysis revealed a large fraction of previously unknown DNA sequences of which the majority encoded putative proteins of unknown function. Remarkably, functions related to the oxidative stress response, DNA repair, as well as arsenic- and antibiotic resistances were annotated. Additionally, all necessary capacities related to plasmid replication, mobilization and maintenance were detected. Sequences characteristic for megaplasmids and other already known plasmid-associated genes were identified as well. The study highlights the potential of the deep-sequencing approach specifically targeting plasmid populations as it allows to evaluate the ecological impact of plasmids from (cultivable and non-cultivable) microorganisms, thereby contributing to the understanding of the distribution of resistance factors within an extremophilic microbial community.

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Complete Genome Sequence of the Linear Plasmid pJD12 Hosted by Micrococcus sp. D12, Isolated from a High-Altitude Volcanic Lake in Argentina

Cited by 4 publications

References 11 publications

Whole-Genome Sequence of the Soil Bacterium Micrococcus sp. KBS0714

Whole-Genome Sequence of the Soil Bacterium Micrococcus sp. KBS0714

Forged Under the Sun: Life and Art of Extremophiles from Andean Lakes

Assessment of the plasmidome of an extremophilic microbial community from the Diamante Lake, Argentina

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