Dataset Information

Draft Genome Sequence of Parageobacillus thermoglucosidasius Strain TG4, a Hydrogenogenic Carboxydotrophic Bacterium Isolated from a Marine Sediment.

ABSTRACT: Parageobacillus thermoglucosidasius possesses biotechnological potential for fuel generation. Here, we report the draft genome sequence of P. thermoglucosidasius strain TG4, which was first isolated from a marine sediment. The genome sequence provides insight into the plasmid diversity and carbon monoxide-dependent hydrogen production capacity of P. thermoglucosidasius.

SUBMITTER: Inoue M

PROVIDER: S-EPMC6357647 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Draft Genome Sequence of Parageobacillus thermoglucosidasius Strain TG4, a Hydrogenogenic Carboxydotrophic Bacterium Isolated from a Marine Sediment.

Inoue Masao M Tanimura Ayumi A Ogami Yusuke Y Hino Taiki T Okunishi Suguru S Maeda Hiroto H Yoshida Takashi T Sako Yoshihiko Y

Microbiology resource announcements 20190131 5

Parageobacillus thermoglucosidasius possesses biotechnological potential for fuel generation. Here, we report the draft genome sequence of P. thermoglucosidasius strain TG4, which was first isolated from a marine sediment. The genome sequence provides insight into the plasmid diversity and carbon monoxide-dependent hydrogen production capacity of P. thermoglucosidasius. ...[more]

PMID: 30714041

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Project description:Calderihabitans maritimus KKC1 is a thermophilic, hydrogenogenic carboxydotroph isolated from a submerged marine caldera. Here, we describe the de novo sequencing and feature analysis of the C. maritimus KKC1 genome. Genome-based phylogenetic analysis confirmed that C. maritimus KKC1 was most closely related to the genus Moorella, which includes well-studied acetogenic members. Comparative genomic analysis revealed that, like Moorella, C. maritimus KKC1 retained both the CO2-reducing Wood-Ljungdahl pathway and energy-converting hydrogenase-based module activated by reduced ferredoxin, but it lacked the HydABC and NfnAB electron-bifurcating enzymes and pyruvate:ferredoxin oxidoreductase required for ferredoxin reduction for acetogenic growth. Furthermore, C. maritimus KKC1 harbored six genes encoding CooS, a catalytic subunit of the anaerobic CO dehydrogenase that can reduce ferredoxin via CO oxidation, whereas Moorella possessed only two CooS genes. Our analysis revealed that three cooS genes formed known gene clusters in other microorganisms, i.e., cooS-acetyl coenzyme A (acetyl-CoA) synthase (which contained a frameshift mutation), cooS-energy-converting hydrogenase, and cooF-cooS-FAD-NAD oxidoreductase, while the other three had novel genomic contexts. Sequence composition analysis indicated that these cooS genes likely evolved from a common ancestor. Collectively, these data suggest that C. maritimus KKC1 may be highly dependent on CO as a low-potential electron donor to directly reduce ferredoxin and may be more suited to carboxydotrophic growth compared to the acetogenic growth observed in Moorella, which show adaptation at a thermodynamic limit.IMPORTANCECalderihabitans maritimus KKC1 and members of the genus Moorella are phylogenetically related but physiologically distinct. The former is a hydrogenogenic carboxydotroph that can grow on carbon monoxide (CO) with H2 production, whereas the latter include acetogenic bacteria that grow on H2 plus CO2 with acetate production. Both species may require reduced ferredoxin as an actual "energy equivalent," but ferredoxin is a low-potential electron carrier and requires a high-energy substrate as an electron donor for reduction. Comparative genomic analysis revealed that C. maritimus KKC1 lacked specific electron-bifurcating enzymes and possessed six CO dehydrogenases, unlike Moorella species. This suggests that C. maritimus KKC1 may be more dependent on CO, a strong electron donor that can directly reduce ferredoxin via CO dehydrogenase, and may exhibit a survival strategy different from that of acetogenic Moorella, which solves the energetic barrier associated with endergonic reduction of ferredoxin with hydrogen.

Dataset Information

Draft Genome Sequence of Parageobacillus thermoglucosidasius Strain TG4, a Hydrogenogenic Carboxydotrophic Bacterium Isolated from a Marine Sediment.

Publications

Draft Genome Sequence of Parageobacillus thermoglucosidasius Strain TG4, a Hydrogenogenic Carboxydotrophic Bacterium Isolated from a Marine Sediment.

Similar Datasets

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