Effect of Nickel and Cobalt on Methanogenic Enrichment Cultures and Role of Biogenic Sulfide in Metal Toxicity Attenuation

Paulo, Lara M.; Ramiro-García, Javier; Mourik, S. van; Stams, Alfons Johannes Maria; Sousa, Diana Z.

doi:10.3389/fmicb.2017.01341

Cited by 42 publications

(18 citation statements)

References 55 publications

(65 reference statements)

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“…Iron (Fe), Ni and Co are the most demanded metals for microbial metabolic activity. As a trace element, Ni has been demonstrated to influence microbial growth, metabolism, community structure and diversity in methanogenic environments (Cai, Qiu & Chen, 2004; Paulo et al, 2017). Methanogenesis is considered one of the most metal-rich enzymatic pathways in biology.…”

Section: Discussionmentioning

confidence: 99%

Effects of nickel and cobalt on methane production and methanogen abundance and diversity in paddy soil

Wang

Chen

et al. 2019

PeerJ

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BackgroundPaddies are an important anthropogenic source of methane emissions to the atmosphere, and they are impacted by heavy metal pollution. Nickel (Ni) and cobalt (Co) pollution might either enhance or mitigate CH4 emission from paddy soils due to the total amounts of metals, bioavailability and functional microbial activity and composition.MethodsAn incubation experiment was conducted, and different Ni and Co concentrations were added to test the effects of trace metals on methane production in paddy soil. The archaea community structure and the abundance of methanogen functional groups in the paddy soil with added Ni and Co were detected using high-throughput sequencing and quantitative PCR based on the 16S rRNA and mcrA (methyl coenzyme M reductase) genes, respectively.ResultsThe highest methane production rate was 561 mg CH4 kg−1 dry soil d−1 with the addition of 50 mg kg−1 Ni and 684 mg CH4 kg−1 dry soil d−1 with the addition of 25 mg kg−1 Co. Accordingly, the mcrA gene was most abundant in the 50 mg kg−1 Ni addition (3.1 × 106 ± 0.5 × 106 copies g−1 dry soil). The lowest mcrA gene abundance was detected in the 500 mg kg−1 Co addition (9.2× 105 ± 0.4 × 105 copies g−1 dry soil). The dominant methanogens were Methanobacterium, Methanosarcina, Methanocella, Methanomassiliicoccus, Bathyarchaeota, and Rice Cluster I (RC-I), and the relative abundances of these groups were higher than 1% in the Ni and Co treatments. Additionally, the archaeal compositions differed significantly in the soils with various Ni and Co additions. The most abundant Methanococcus spp. represented 51.3% of the composition in the 50 mg kg−1 Ni addition, which was significantly higher than that of the control (12.9% to 17.5%).DiscussionOur results indicated that the contamination of soil by Ni and Co significantly affected total methanogens abundance and specific methanogen functional groups. Ni and Co additions to paddy soil promoted methanogenic activity at low concentrations, while they had inhibitory effects at high concentrations. Because paddy soils largely contribute to methane emissions and are increasingly exposed to heavy metal pollution, our results show that future assessments of greenhouse gas flux from paddy soils should take into account the effects of pollution by Ni and Co.

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Section: Discussionmentioning

confidence: 99%

Effects of nickel and cobalt on methane production and methanogen abundance and diversity in paddy soil

Wang

Chen

et al. 2019

PeerJ

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“…They can be conducted under batch (Colleran et al, 1992;Kiyuna et al, 2017;O'Flaherty et al, 1998a;Owen et al, 1979) or continuous (Godoi et al, 2015;Parkin & Speece, 1983) conditions. Tests can be done directly with reactor sludge (Godoi et al, 2015;Kiyuna et al, 2017), with enrichments from reactor sludge (Paulo et al, 2017;Wang et al, 1991) or with pure cultures of anaerobic bacteria (O'Flaherty et al, 1998b). The parameters that indicate inhibition are:…”

Section: Techniques For Quantification Of Sulfide Toxicity On Microbimentioning

confidence: 99%

Biological treatment of organic sulfate-rich wastewaters

Lens¹,

Omil²,

Lema³

et al. 2020

Environmental Technologies to Treat Sulphur Pollution: Principles and Engineering

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Many wastewaters have a high sulfate and organic carbon content, such as those generated by industrial processes that use sulfuric acid (fermentation industry), or sulfate-rich feedstocks (seafood processing industry). The use of sulfurous compounds less oxidized than sulfate in industrial processes, such as sulfide (tanneries, Kraft pulping), sulfite (sulfite pulping), or dithionite (pulp bleaching) also results in the generation of sulfate-rich wastewaters. Besides these organic wastewaters, some sulfate-rich effluents hardly contain any organic matter. These are generated during the leaching of sulfur-rich wastes (mine spoils and landfills, see Chapter 15) or during the scrubbing of sulfur-containing off-gases (see Lagas, 2000). Specific aspects of the treatment of these inorganic wastewaters are presented in Chapter 7. Aqueous sulfate emissions are generally considered safe. In humans, sulfate concentrations exceeding 500 mg L −1 can have laxative effects (US EPA, 1990), but the Drinking Water Standards of the U.S. Public Health Service proposed a maximum of 250 mg L −1 , based on aesthetic aspects. In the last decade, the water quality guidelines have included sulfur compounds in the protection of freshwater aquatic life. The Province of British Columbia (Canada), for instance, has set the maximum sulfate concentration between 128-429 mg L −1 (BC ME, 2013), depending on the water hardness (Elphick et al., 2011) to ensure aquatic life protection. This range was established based on toxicity assays with different

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“…Sulfide reacts with Fe (and other metals) and precipitates mainly as FeS in solid phase. When sulfide reacts with potential toxic metals, the formation of metal sulfide precipitation may alleviate metal toxicity for the AD microbial community such as methanogens (Paulo et al, 2015(Paulo et al, , 2017. Sulfide is also oxidized to zero-valent S, which likely represents elemental and polysulfidic S formation via chemical and (potentially) microbial processes.…”

Section: Sulfur Biogeochemistry In Anaerobic Digestersmentioning

confidence: 99%

Biogeochemistry of major elements in anaerobic digesters: carbon, nitrogen, phosphorus, sulfur and iron

Hullebusch¹,

Yekta²,

Çallı³

et al. 2019

Trace Elements in Anaerobic Biotechnologies

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This chapter provides an overview of the main biochemical transformations of major elements, including carbon, nitrogen, sulfur, iron and phosphorus in anaerobic digesters. Mineralization of organic matter during anaerobic digestion processes results in the production of inorganic carbonate, ammonium, sulfide, and phosphate species, which are involved in a complex network of chemical and biological reactions through interaction with available macro and micro nutrients as well as microbial processes with profound effects on the efficiency and stability of the anaerobic digester performance. The interplay of iron, phosphorus and sulfur cycles has recently attracted attention in the frame of research developed for the recovery of phosphorus on one hand and in the frame of the

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Effect of Nickel and Cobalt on Methanogenic Enrichment Cultures and Role of Biogenic Sulfide in Metal Toxicity Attenuation

Cited by 42 publications

References 55 publications

Effects of nickel and cobalt on methane production and methanogen abundance and diversity in paddy soil

Effects of nickel and cobalt on methane production and methanogen abundance and diversity in paddy soil

Biological treatment of organic sulfate-rich wastewaters

Biogeochemistry of major elements in anaerobic digesters: carbon, nitrogen, phosphorus, sulfur and iron

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