Response of soil protists to antimony and arsenic contamination

Yang, Rui; Sun, Weimin; Guo, Lifang; Li, Baoqin; Wang, Qi; Huang, Duanyi; Gao, Wenlong; Xu, Rui; Li, Yongbin

doi:10.1016/j.envpol.2022.120387

Cited by 14 publications

(4 citation statements)

References 62 publications

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“…which have been described as early biofilm colonizers and important EPS producers (Gao et al, 2022; Katharios-Lanwermeyer et al, 2014; Liébana et al, 2016) and commonly detected during the initial phases of granulation (Liébana et al, 2019; Weissbrodt et al, 2012; Xia et al, 2018). A diverse community of microeukaryotes was also present, mostly protozoa with different feeding modes and motility which promote microbial activity and aggregation against predation (Yang et al, 2022). The Rhogostoma genus increased in abundance, dominating the community by the end of the floccular stage.…”

Section: Discussionmentioning

confidence: 99%

“…A diverse community of microeukaryotes was also present, mostly protozoa with different feeding modes and motility which promote microbial activity and aggregation against predation (Yang et al, 2022). The Rhogostoma genus increased in abundance, dominating the community by the end of the floccular stage.…”

Section: The Initial Granulation Stage Is Characterized By Rapid Comm...mentioning

confidence: 99%

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Community successional patterns and inter-kingdom interactions during granular biofilm development

de Celis,

Modin,

Arregui

et al. 2024

Preprint

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Aerobic granular sludge is a compact and efficient biofilm process used for wastewater treatment which has received much attention and is currently being implemented worldwide. The microbial associations and their ecological implications occurring during granule development, especially those involving inter-kingdom interactions, are poorly understood. In this work, we monitored the prokaryote and eukaryote community composition and structure during the granulation of activated sludge for 343 days in a sequencing batch reactor (SBR), and investigated the influence of abiotic and biotic factors on the granule development. Sludge granulation was accomplished with low-wash out dynamics at long settling times, allowing for the microbial communities to adapt to the SBR environmental conditions. The sludge granulation and associated changes in microbial community structure could be divided into three stages: floccular, intermediate, and granular. The eukaryotic and prokaryotic communities showed parallel successional dynamics, with three main sub-communities identified for each kingdom, dominating in each stage of sludge granulation. Although inter-kingdom interactions were shown to affect community succession during the whole experiment, during granule development random factors like the availability of settlement sites or drift acquired increasing importance. The prokaryotic community was more affected by deterministic factors, including reactor conditions, while the eukaryotic community was to a larger extent shaped by biotic interactions (including inter-kingdom interactions) and stochasticity.

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Section: Discussionmentioning

confidence: 99%

Section: The Initial Granulation Stage Is Characterized By Rapid Comm...mentioning

confidence: 99%

Community successional patterns and inter-kingdom interactions during granular biofilm development

de Celis,

Modin,

Arregui

et al. 2024

Preprint

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“…Tailings are fine-grained sand particles generated as waste during the mining process, which may cause severe environmental problems. − For example, large tailing dumps are unstable, suffer from slope instability, and may cause geohazards such as landslides. , In addition, tailings can continuously release toxic metal(loid)s into adjacent environments (e.g., soils, rivers, and groundwater), threatening these habitats and human health. − Due to their adverse environmental effects, it is of great importance to explore appropriate management and treatment strategies for mine tailings.…”

Section: Introductionmentioning

confidence: 99%

Phototrophic Nitrogen Fixation, a Neglected Biogeochemical Process in Mine Tailings?

Li,

Sun,

Yang

et al. 2024

Environ. Sci. Technol.

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Biological nitrogen fixation (BNF) has important ecological significance in mine tailing by contributing to the initial accumulation of nitrogen. In addition to chemolithotrophic and heterotrophic BNF, light may also fuel BNF in oligotrophic mine tailings. However, knowledge regarding the occurrence and ecological significance of this biogeochemical process in mine tailings remains ambiguous. The current study observed phototrophic BNF in enrichment cultures established from three primary successional stages (i.e., original tailings, biological crusts, and pioneer plants) of tailings. Notably, phototrophic BNF in tailings may be more active at vegetation stages (i.e., biological crusts and pioneering plants) than in bare tailings. DNA-stable isotope probing identified Roseomonas species as potential aerobic anoxygenic phototrophs responsible for phototrophic BNF. Furthermore, metagenomic binning as well as genome mining revealed that Roseomonas spp. contained essential genes involved in nitrogen fixation, anoxygenic photosynthesis, and carbon fixation, suggesting their genetic potential to mediate phototrophic BNF. A causal inference framework equipped with the structural causal model suggested that the enrichment of putative phototrophic diazotrophic Roseomonas may contribute to an elevated total nitrogen content during primary succession in these mine tailings. Collectively, our findings suggest that phototrophic diazotrophs may play important roles in nutrient accumulation and hold the potential to facilitate ecological succession in tailings.

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“…Antimony (Sb) and arsenic (As) have similar chemical characteristics ( Anawar et al, 2011 ; Yu et al, 2021 ) and occur ubiquitously in the environment at trace levels ( Johnston et al, 2020 ; Xu et al, 2020 ; Li Y. et al, 2021 ). Both Sb and As have been listed as priority pollutants by the European Union and the Environmental Protection Agency of the USA and restricted pollutants by China ( Wei et al, 2015a ; Chang et al, 2022 ; Yang et al, 2022 ; Zhou et al, 2022 ). Sb is carcinogenic and excessive Sb exposure can damage the respiratory, cardiovascular, and urinary systems ( Nishad and Bhaskarapillai, 2021 ; Liu et al, 2022 ; Zhou et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Arbuscular mycorrhizal fungi community analysis revealed the significant impact of arsenic in antimony- and arsenic-contaminated soil in three Guizhou regions

et al. 2023

Front. Microbiol.

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IntroductionThe lack of systematic investigations of arbuscular mycorrhizal fungi (AMF) community composition is an obstacle to AMF biotechnological applications in antimony (Sb)- and arsenic (As)-polluted soil.MethodsMorphological and molecular identification were applied to study the AMF community composition in Sb- and As-contaminated areas, and the main influencing factors of AMF community composition in Sb- and As-contaminated areas were explored.Results(1) A total of 513,546 sequences were obtained, and the majority belonged to Glomeraceae [88.27%, 193 operational taxonomic units (OTUs)], followed by Diversisporaceae, Paraglomeraceae, Acaulosporaceae, Gigasporaceae, and Archaeosporaceae; (2) the affinity between AMF and plants was mainly related to plant species (F = 3.488, p = 0.022 < 0.050), which was not significantly correlated with the total Sb (TSb) and total As (TAs) in soil; (3) the AMF spore density was mainly related to the available nitrogen, available potassium, and total organic carbon; (4) The effect of soil nutrients on AMF community composition (total explanation: 15.36%) was greater than that of soil Sb and As content (total explanation: 5.80%); (5) the effect of TAs on AMF community composition (λ = −0.96) was more drastic than that of TSb (λ = −0.21), and the effect of As on AMF community composition was exacerbated by the interaction between As and phosphorus in the soil; and (6) Diversisporaceae was positively correlated with the TSb and TAs.DiscussionThe potential impact of As on the effective application of mycorrhizal technology should be further considered when applied to the ecological restoration of Sb- and As-contaminated areas.

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Response of soil protists to antimony and arsenic contamination

Cited by 14 publications

References 62 publications

Community successional patterns and inter-kingdom interactions during granular biofilm development

Community successional patterns and inter-kingdom interactions during granular biofilm development

Phototrophic Nitrogen Fixation, a Neglected Biogeochemical Process in Mine Tailings?

Arbuscular mycorrhizal fungi community analysis revealed the significant impact of arsenic in antimony- and arsenic-contaminated soil in three Guizhou regions

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