High quality draft genome sequence of the heavy metal resistant bacterium Halomonas zincidurans type strain B6T

Huo, Ying‐Yi; Li, Zhengyang; Cheng, Hong; Wang, Chunsheng; Xu, Xue-Wei

doi:10.1186/1944-3277-9-30

Cited by 20 publications

(6 citation statements)

References 54 publications

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“…amylovorus [ 32 ]. The decreased relative abundances of Lachnospiraceae, Ruminococcaceae, Erysipelotrichaceae and Ruminococcus might be beneficial to promote growth or alleviate incidence of diarrhea of weaning piglets [ 34 ]. Compared to the control group, Nano-ZnO treatment significantly decreased the Ruminococcus level, while compared with the traditional ZnO treatment, the unclassified bacterial abundance was increased.…”

Section: Discussionmentioning

confidence: 99%

“…It is reported that only 14% of Nano-ZnO could dissolve in gastric fluids [ 13 ] and Nano-ZnO had limited solubility in neutral environment [ 14 ]. In addition, Nano-ZnO particles are unstable in suspension of water, where they aggregate together and continue to increase size beyond the nanoscale [ 34 ]. So the limited impact of Nano-ZnO on cecal microbiota showed in our study might result from the low concentrations of Nano-ZnO and zinc ions dissolved from Nano-ZnO.…”

Section: Discussionmentioning

confidence: 99%

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Dietary ZnO nanoparticles alters intestinal microbiota and inflammation response in weaned piglets

et al. 2017

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The present study was carried out to determine whether low dose of zinc oxide nanoparticles (Nano-ZnO) could serve as a potential substitute of pharmacological dose of traditional ZnO in weaned piglets. 180 crossbred weaning piglets were randomly assigned to 3 treatments. Experimental animals were fed basal diet supplemented with 0 mg Zn/kg (Control), 600 mg Zn/kg (Nano-ZnO) and 2000 mg Zn/kg (ZnO) for 14 days. On day 14 after weaning, the piglets fed Nano-ZnO did not differ from those fed traditional ZnO in growth performance and jejunal morphology, while Nano-ZnO treatment could significantly alleviate the incidence of diarrhea (P < 0.05). In jejunum, the mRNA expressions of intestinal antioxidant enzymes and tight junction proteins were increased (P < 0.05) in Nano-ZnO treatment. In ileum, the expression levels of IFN-γ, IL-1β, TNF-α and NF-κB were decreased (P < 0.05). Gene sequencing analysis of 16S rRNA revealed that dietary Nano-ZnO increased the bacterial richness and diversity in ileum, while decreased both of them in cecum and colon. Specifically, the relative abundances of Streptococcus in ileum, Lactobacillus in colon were increased, while the relative abundances of Lactobacillus in ileum, Oscillospira and Prevotella in colon were decreased (P < 0.05). In conclusion, our data reveal that low dose of Nano-ZnO (600 mg Zn/kg) can effectively reduce piglet diarrhea incidence, similar to high dose of traditional ZnO (2000 mg Zn/kg), which may be mediated by improving intestinal microbiota and inflammation response in piglets, and help to reduce zinc environmental pollution.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Dietary ZnO nanoparticles alters intestinal microbiota and inflammation response in weaned piglets

et al. 2017

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“…2A). All of these bacterial taxa have previously been reported to typically increase rapidly in abundance during oil spills, to degrade hydrocarbons and to tolerate/detoxify heavy metals (Gutierrez et al, 2013;Dubinsky et al, 2013;Kumar et al, 2019;Dell'Anno et al, 2021a,b,c;Huo et al, 2014;Liu et al, 2019;Ramasamy et al, 2020;Ghosh et al, 2022). This suggests that our microbiome enrichment strategy was successful in selectively boosting autochthonous bacterial taxa with promising potential for petroleum hydrocarbon and HM remediation.…”

Section: Characterization Of the Enriched Microbiome And Of The Bacte...mentioning

confidence: 59%

Microbiome enrichment from contaminated marine sediments unveils novel bacterial strains for petroleum hydrocarbon and heavy metal bioremediation

Dell’Anno

Zyl

Trindade

et al. 2023

Environmental Pollution

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“…The existence of the DnaK gene cluster was widespread in microorganisms who thrive in hydrothermal vents, such as Thiomicrospira ( Tang et al, 2013 ). In addition, H. titanicae SOB56 might be resistant to many metals such as lead, cadmium, zinc, and mercury, similar to H. zincidurans B6 T ( Huo et al, 2014 ). Meanwhile, many reported Halomonas genomes ( Wang and Shao, 2021 ) (including H. titanicae SOB56) in hydrothermal vents carry genes encoding copper resistance proteins, implying the tolerance to such bio-toxic metals in the environment.…”

Section: Discussionmentioning

confidence: 99%

Heterotrophic Sulfur Oxidation of Halomonas titanicae SOB56 and Its Habitat Adaptation to the Hydrothermal Environment

Gao

Wang

et al. 2022

Front. Microbiol.

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Halomonas bacteria are ubiquitous in global marine environments, however, their sulfur-oxidizing abilities and survival adaptations in hydrothermal environments are not well understood. In this study, we characterized the sulfur oxidation ability and metabolic mechanisms of Halomonas titanicae SOB56, which was isolated from the sediment of the Tangyin hydrothermal field in the Southern Okinawa Trough. Physiological characterizations showed that it is a heterotrophic sulfur-oxidizing bacterium that can oxidize thiosulfate to tetrathionate, with the Na2S2O3 degradation reaching 94.86%. Two potential thiosulfate dehydrogenase-related genes, tsdA and tsdB, were identified as encoding key catalytic enzymes, and their expression levels in strain SOB56 were significantly upregulated. Nine of fifteen examined Halomonas genomes possess TsdA- and TsdB-homologous proteins, whose amino acid sequences have two typical Cys-X2-Cys-His heme-binding regions. Moreover, the thiosulfate oxidation process in H. titanicae SOB56 might be regulated by quorum sensing, and autoinducer-2 synthesis protein LuxS was identified in its genome. Regarding the mechanisms underlying adaptation to hydrothermal environment, strain SOB56 was capable of forming biofilms and producing EPS. In addition, genes related to complete flagellum assembly system, various signal transduction histidine kinases, heavy metal transporters, anaerobic respiration, and variable osmotic stress regulation were also identified. Our results shed light on the potential functions of heterotrophic Halomonas bacteria in hydrothermal sulfur cycle and revealed possible adaptations for living at deep-sea hydrothermal fields by H. titanicae SOB56.

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High quality draft genome sequence of the heavy metal resistant bacterium Halomonas zincidurans type strain B6T

Cited by 20 publications

References 54 publications

Dietary ZnO nanoparticles alters intestinal microbiota and inflammation response in weaned piglets

Dietary ZnO nanoparticles alters intestinal microbiota and inflammation response in weaned piglets

Microbiome enrichment from contaminated marine sediments unveils novel bacterial strains for petroleum hydrocarbon and heavy metal bioremediation

Heterotrophic Sulfur Oxidation of Halomonas titanicae SOB56 and Its Habitat Adaptation to the Hydrothermal Environment

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