2022
DOI: 10.3390/microorganisms10081507
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Rhizosphere Microbial Communities and Geochemical Constraining Mechanism of Antimony Mine Waste-Adapted Plants in Southwestern China

Abstract: 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 microb… Show more

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Cited by 9 publications
(3 citation statements)
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“…While Actinobacteriota are commonly found in mine tailings (especially metal tolerant Arthrobacter spp.) (Gao et al, 2021; Lopez et al, 2017; Xie et al, 2022), these organisms are usually obligate aerobes associated with the rhizosphere of metal hyper-accumulating plants. Therefore, we would expect to see them in the surface layers of vegetated tailings (e.g., ML34) as opposed to the deeper, ML25 tailings.…”
Section: Resultsmentioning
confidence: 99%
“…While Actinobacteriota are commonly found in mine tailings (especially metal tolerant Arthrobacter spp.) (Gao et al, 2021; Lopez et al, 2017; Xie et al, 2022), these organisms are usually obligate aerobes associated with the rhizosphere of metal hyper-accumulating plants. Therefore, we would expect to see them in the surface layers of vegetated tailings (e.g., ML34) as opposed to the deeper, ML25 tailings.…”
Section: Resultsmentioning
confidence: 99%
“…While members of the Actinobacteriota phylum display a diverse range of metabolism, the genera that are commonly found in mine tailings (especially metal tolerant Arthrobacter spp.) ( 42 44 ) are usually obligate aerobes associated with the rhizosphere of metal hyper-accumulating plants. Therefore, we would expect to see them in the surface layers of vegetated tailings (e.g., ML34) as opposed to the deeper, ML25 tailings.…”
Section: Resultsmentioning
confidence: 99%
“…Based on previous research, Actinobacteriota mainly play two roles in uraniumcontaminated remediation systems: reducing uranium migration and providing bioactive substances by preying on certain microorganisms. 40,41 On the other hand, Myxococcota not only clear pathogens through predation but also enhance the degradation capabilities of functional bacteria toward pollutants. 42,43 In summary, when 1% biochar is added to the soil, it significantly increases the relative abundances of Actinobacteriota and Myxococcota, which may contribute to uranium immobilization and plant growth.…”
Section: Lefse Analysismentioning
confidence: 99%