Sulfuriferula nivalis sp. nov., a sulfur oxidizer isolated from snow and emended description of Sulfuriferula plumbiphila

Kojima, Hisaya; Mochizuki, Jun; Fukui, Manabu

doi:10.1099/ijsem.0.004166

Cited by 12 publications

(2 citation statements)

References 15 publications

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“…The Sulfuriferula OTU that is most abundant in libraries from the field experiments (‘Field DC’, Figure S6) (OTU 8) makes up only a small fraction (less than 0.1%) of the OTUs found in the naturally‐weathered ‘outcrop’ libraries, while the Sulfuriferula OTU that is most abundant in libraries from the naturally‐weathered outcrops (OTU 111) is less than 1% of the Field DC libraries (Figure S6). The genus Sulfuriferula contains multiple species that have different growth requirements, including both obligate autotrophs and mixotrophs, some of which can grow both aerobically and anaerobically (Jones, Roepke, et al, 2017; Kojima et al, 2020; Watanabe et al, 2015, 2016). Because of the diversity of metabolic capabilities in this genus, it would not be surprising if certain Sulfuriferula spp.…”

Section: Discussionmentioning

confidence: 99%

Microbial communities from weathered outcrops of a sulfide‐rich ultramafic intrusion, and implications for mine waste management

Hobart,

Greensky,

Hernandez

et al. 2023

Environmental Microbiology

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The Duluth Complex (DC) contains sulfide‐rich magmatic intrusions that represent one of the largest known economic deposits of copper, nickel, and platinum group elements. Previous work showed that microbial communities associated with experimentally‐weathered DC waste rock and tailings were dominated by uncultivated taxa and organisms not typically associated with mine waste. However, those experiments were designed for kinetic testing and do not necessarily represent the conditions expected for long‐term environmental weathering. We used 16S rRNA gene methods to characterize the microbial communities present on the surfaces of naturally‐weathered and historically disturbed outcrops of DC material. Rock surfaces were dominated by diverse uncultured Ktedonobacteria, Acetobacteria, and Actinobacteria, with abundant algae and other phototrophs. These communities were distinct from microbial assemblages from experimentally‐weathered DC rocks, suggesting different energy and nutrient resources in environmental samples. Sulfide mineral incubations performed with and without algae showed that photosynthetic microorganisms could have an inhibitory effect on autotrophic populations, resulting in slightly lower sulfate release and differences in dominant microorganisms. The microbial assemblages from these weathered outcrops show how communities develop during weathering of sulfide‐rich DC rocks and represent baseline data that could evaluate the effectiveness of future reclamation of waste produced by large‐scale mining operations.

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Section: Discussionmentioning

confidence: 99%

Microbial communities from weathered outcrops of a sulfide‐rich ultramafic intrusion, and implications for mine waste management

Hobart,

Greensky,

Hernandez

et al. 2023

Environmental Microbiology

View full text Add to dashboard Cite

show abstract

“…S6) (OTU 8) makes up only a small fraction (less than 0.1%) of the OTUs found in the naturally-weathered “outcrop” libraries, while the Sulfuriferula OTU that is most abundant in libraries from the naturally-weathered outcrops (OTU 111) is less than 1% of the Field DC libraries (Figure S6). The genus Sulfuriferula contains multiple species that have different growth requirements, including both obligate autotrophs and mixotrophs, some of which can grow both aerobically and anaerobically (Watanabe et al ., 2015, 2016; Jones, Roepke, et al ., 2017; Kojima et al ., 2020). Because of the diversity of metabolic capabilities in this genus, it would not be surprising if certain Sulfuriferula spp.…”

Section: Discussionmentioning

confidence: 99%

Microbial communities from weathered outcrops of a sulfide-rich ultramafic intrusion, and implications for mine waste management

Hobart

Greensky

Hernandez

et al. 2022

Preprint

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The Duluth Complex, Northeastern Minnesota, contains sulfide-rich magmatic intrusions that, collectively, represent one of the world's largest known economic deposits of copper, nickel, and platinum group elements (Cu-Ni-PGEs). Previous work showed that microbial communities associated with experimentally-weathered Duluth Complex waste rock and tailings were dominated by uncultivated taxa and other populations not typically associated with mine waste. However, those experiments were designed for kinetic testing and do not necessarily represent the conditions expected for reclaimed mine waste or long-term weathering in the environment. We therefore used 16S rRNA gene methods to characterize the microbial communities present on the surfaces of naturally-weathered and historically disturbed outcrops of Duluth Complex material, as well as a circumneutral seep draining a reclaimed blast pit. Rock surfaces were dominated by diverse uncultured Ktedonobacteria, Acetobacteria, and Actinobacteria while seeps were dominated by Proteobacteria, including Leptothrix spp. and Methylovulum spp. All samples had abundant algae and other phototrophs. These communities were distinct from previously-described microbial assemblages from experimentally-weathered Duluth Complex rocks, suggested different energy and nutrient resources in the reclaimed rocks, outcrops, and seeps. Sulfide mineral incubations performed with and without algae showed that photosynthetic microorganisms could have an inhibitory effect on some of the autotrophic populations from the site, resulting in slightly lower sulfate release and differences in the dominant microorganisms. The microbial assemblages from these weathered outcrops show how communities are expected to develop during natural weathering of sulfide-rich Duluth Complex rocks, and represent baseline data that could be used to evaluate the effectiveness of future reclamation of tailings and waste rock produced by large scale mining operations.

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Sulfurimicrobium lacus gen. nov., sp. nov., a sulfur oxidizer isolated from lake water, and review of the family Sulfuricellaceae to show that it is not a later synonym of Gallionellaceae

et al. 2020

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Sulfuriferula nivalis sp. nov., a sulfur oxidizer isolated from snow and emended description of Sulfuriferula plumbiphila

Cited by 12 publications

References 15 publications

Microbial communities from weathered outcrops of a sulfide‐rich ultramafic intrusion, and implications for mine waste management

Microbial communities from weathered outcrops of a sulfide‐rich ultramafic intrusion, and implications for mine waste management

Microbial communities from weathered outcrops of a sulfide-rich ultramafic intrusion, and implications for mine waste management

Sulfurimicrobium lacus gen. nov., sp. nov., a sulfur oxidizer isolated from lake water, and review of the family Sulfuricellaceae to show that it is not a later synonym of Gallionellaceae

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