Mobility and potential bioavailability of antimony in contaminated soils: Short-term impact on microbial community and soil biochemical functioning

Diquattro, Stefania; Garau, Giovanni; Mangia, Nicoletta Pasqualina; Drigo, Barbara; Lombi, Enzo; Vasileiadis, Sotirios; Castaldi, Paola

doi:10.1016/j.ecoenv.2020.110576

Cited by 34 publications

(19 citation statements)

References 64 publications

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“…No significant differences in the alpha index of bacteria were noted among Pb treatments ( p > 0.05); however, the structural composition of the bacteria was affected by Pb contamination. This finding is similar to those of Diquattro et al (2020) . The enrichment and diversity indices for bacteria in the MH and OL samples were higher than those in the control sample ( Table 3 ), and the specific OTU number for bacteria was highest in the MH samples ( Figure 1 ).…”

Section: Discussionsupporting

confidence: 90%

“…Fungal abundance and diversity were the highest in the soil samples treated with high Pb concentrations not only after multistage contamination but also after single instance contamination, Pb contamination significantly increased fungal diversity (p < 0.05; Table 4). Diquattro et al (2020) reported that the high concentration of antimony significantly increased the number of culturable heterotrophic fungi in sandy clay loam (p < 0.05). Zhang et al (2022) also reported that mediumconcentration Pb treatment (500 mg kg −1 ) was more conducive to maintaining higher activity and diversity of fungi in the cinnamon soil, and there was a significant inhibitory effect on the number and diversity of fungi when the Pb content in soil reached Fungal genus-level species composition in Pb-contaminated tea garden soil.…”

Section: Discussionmentioning

confidence: 98%

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Bacterial and fungal diversities examined through high-throughput sequencing in response to lead contamination of tea garden soil

Zhang

Deng

et al. 2023

Front. Microbiol.

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Several studies have indicated that the heavy-metal content in tea is increasing gradually. Researchers examining the soil of more than 100 tea gardens in China have observed that lead content was higher in some soils. The effect of lead contamination on soil microorganisms in tea gardens was studied to determine the effect of lead on the essential functions of microorganisms in a tea garden soil ecosystem. Previous studies on pot experiments adopted the method of adding a single instance of pollution, which failed to comprehensively simulate the characteristics of the slow accumulation of heavy metals in soil. This study designed with two pollution modes (multistage and single instance) determined the content of soil lead in different forms according to the European Community Bureau of Reference extraction procedure. The community structure, species diversity and functional abundance of soil bacteria and fungi were examined by high-throughput sequencing. We observed that the content of four forms of lead was higher in the multistage contamination mode than in the single instance contamination mode. The effects of lead contamination on bacteria differed significantly (p < 0.05), and the abundance and diversity of bacteria were higher in the multistage contamination mode than in the single instance contamination mode. The community structure of fungi was more affected by lead than was that of bacteria. The content of each lead form was the environmental factor most strongly affecting soil bacteria and fungi. The predicted main function of the bacterial community was amino acid transport and metabolism, and the trophic mode of the fungal community was mainly pathotroph–saprotroph. This study revealed changes in soil microorganisms caused by different forms of lead and contamination methods in tea garden soil and provide a theoretical basis for examining the effects of lead contamination on soil microorganisms.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 98%

Bacterial and fungal diversities examined through high-throughput sequencing in response to lead contamination of tea garden soil

Zhang

Deng

et al. 2023

Front. Microbiol.

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“…Organic matter was a more influential factor on the DHA values than the higher or lower Sb and Pb concentrations in soil. Diquattro et al (2020) also found very low DHA values in soils doped with Sb (V), and their estimated probable cause was the importance of Sb concentrations in reducing soil enzymatic activity by interacting with the enzyme-substrate complex, enzyme denaturation or interacting with protein-active groups (Nannipieri et al, 2003). In our case, the low SOM values seemed to act as a limiting factor, which could be important given these low DHA values.…”

Section: Discussionsupporting

confidence: 54%

Evaluation of antimony availability in a mining context: Impact for the environment, and for mineral exploration and exploitation.

et al. 2023

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“…Adding Sb to the soil can significantly reduce substrate-induced resuscitation [ 83 ]. Sb can influence microbial diversity by affecting biological community-level physiological profile, and soil dehydrogenase activity [ 84 ]. In an Sb-polluted area, microbial composition and diversity were negatively correlated with Sb content [ 56 ].…”

Section: Discussionmentioning

confidence: 99%

Rhizosphere Microbial Communities and Geochemical Constraining Mechanism of Antimony Mine Waste-Adapted Plants in Southwestern China

Xie

Hao

et al. 2022

Microorganisms

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Antimony (Sb) and arsenic (As) are two hazardous metalloid elements, and the biogeochemical cycle of Sb and As can be better understood by studying plant rhizosphere microorganisms associated with Sb mine waste. In the current study, samples of three types of mine waste—Sb mine tailing, waste rocks, and smelting slag—and associated rhizosphere microorganisms of adapted plants were collected from Qinglong Sb mine, southwest China. 16S rRNA was sequenced and used to study the composition of the mine waste microbial community. The most abundant phylum in all samples was Proteobacteria, followed by Bacteroidota, Acidobacteriota, and Actinobacteriota. The community composition varied among different mine waste types. Gammaproteobacteria was the most abundant microorganism in tailings, Actinobacteria was mainly distributed in waste rock, and Saccharimonadia, Acidobacteriae, and Ktedonobacteria were mainly present in slag. At the family level, the vast majority of Hydrogenophilaceae were found in tailings, Ktedonobacteraceae, Chthoniobacteraceae, and Acidobacteriaceae (Subgroup 1) were mostly found in slag, and Pseudomonadaceae and Micrococcaceae were mainly found in waste rock. Actinobacteriota and Arthrobacter are important taxa for reducing heavy metal(loid) mobility, vegetation restoration, and self-sustaining ecosystem construction on antimony mine waste. The high concentrations of Sb and As reduce microbial diversity.

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Mobility and potential bioavailability of antimony in contaminated soils: Short-term impact on microbial community and soil biochemical functioning

Cited by 34 publications

References 64 publications

Bacterial and fungal diversities examined through high-throughput sequencing in response to lead contamination of tea garden soil

Bacterial and fungal diversities examined through high-throughput sequencing in response to lead contamination of tea garden soil

Evaluation of antimony availability in a mining context: Impact for the environment, and for mineral exploration and exploitation.

Rhizosphere Microbial Communities and Geochemical Constraining Mechanism of Antimony Mine Waste-Adapted Plants in Southwestern China

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