Dataset Information

Construction of the Whole Genome of Brevundimonas sp. Strain NIBR11: An Exploration of Bacteria Isolated from Algae in the Nakdong River.

ABSTRACT: We report the genome sequence of Brevundimonas sp. strain NIBR11. Strain NIBR11 was isolated from algae collected from the Nakdong River. The assembled contig contains 3,123 coding sequences (CDSs), 6 rRNA genes, 48 tRNA genes, 1,623 genes for hypothetical proteins, and 109 genes for proteins with putative functions.

SUBMITTER: Yu M

PROVIDER: S-EPMC10353468 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature

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Construction of the Whole Genome of <i>Brevundimonas</i> sp. Strain NIBR11: An Exploration of Bacteria Isolated from Algae in the Nakdong River.

Yu Minjae M Park Jin Young JY Yu Jaewoong J Kim Jin Nam JN Choi Ahhyeon A

Microbiology resource announcements 20230607 7

We report the genome sequence of <i>Brevundimonas</i> sp. strain NIBR11. Strain NIBR11 was isolated from algae collected from the Nakdong River. The assembled contig contains 3,123 coding sequences (CDSs), 6 rRNA genes, 48 tRNA genes, 1,623 genes for hypothetical proteins, and 109 genes for proteins with putative functions. ...[more]

PMID: 37284755

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Project description:The toxic element arsenic (As) has become the major focus of global research owing to its harmful effects on human health, resulting in the establishment of several guidelines to prevent As contamination. The widespread industrial use of As has led to its accumulation in the environment, increasing the necessity to develop effective remediation technologies. Among various treatments, such as chemical, physical, and biological treatments, used to remediate As-contaminated environments, biological methods are the most economical and eco-friendly. Microbial oxidation of arsenite (As(III)) to arsenate (As(V)) is a primary detoxification strategy for As remediation as it reduces As toxicity and alters its mobility in the environment. Here, we evaluated the self-detoxification potential of microcosms isolated from Nakdong River water by investigating the autotrophic and heterotrophic oxidation of As(III) to As(V). Experimental data revealed that As(III) was oxidized to As(V) during the autotrophic and heterotrophic growth of river water microcosms. However, the rate of oxidation was significantly higher under heterotrophic conditions because of the higher cell growth and density in an organic-matter-rich environment compared to that under autotrophic conditions without the addition of external organic matter. At an As(III) concentration > 5 mM, autotrophic As(III) oxidation remained incomplete, even after an extended incubation time. This inhibition can be attributed to the toxic effect of the high contaminant concentration on bacterial growth and the acidification of the growth medium with the oxidation of As(III) to As(V). Furthermore, we isolated representative pure cultures from both heterotrophic- and autotrophic-enriched cultures. The new isolates revealed new members of As(III)-oxidizing bacteria in the diversified bacterial community. This study highlights the natural process of As attenuation within river systems, showing that microcosms in river water can detoxify As under both organic-matter-rich and -deficient conditions. Additionally, we isolated the bacterial strains HTAs10 and ATAs5 from the microcosm which can be further investigated for potential use in As remediation systems. Our findings provide insights into the microbial ecology of As(III) oxidation in river ecosystems and provide a foundation for further investigations into the application of these bacteria for bioremediation.

Dataset Information

Construction of the Whole Genome of Brevundimonas sp. Strain NIBR11: An Exploration of Bacteria Isolated from Algae in the Nakdong River.

Publications

Construction of the Whole Genome of <i>Brevundimonas</i> sp. Strain NIBR11: An Exploration of Bacteria Isolated from Algae in the Nakdong River.

Similar Datasets

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