Selenium and Bacillus proteolyticus SES synergistically enhanced ryegrass to remediate Cu–Cd–Cr contaminated soil

Nie, Minghua; Wu, Chih-Hung; Tang, Yanni; Shi, Guangyu; Wang, Xu; Hu, Chengxiao; Cao, Jian; Zhao, Xiaohu

doi:10.1016/j.envpol.2023.121272

Cited by 26 publications

(6 citation statements)

References 77 publications

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“…Nano-Se foliar biofortification restricted the absorption and transformation of Cd by enhancing soil qualities (fluorescein diacetate, urease, brassinolide, and p -hydroxybenzoic acid) and abundance of beneficial microorganisms (Gammaproteobacteria, Alphaproteobacteria, Bacteroidia, Gemmatimonadetes, Deltaproteobacteria, and Anaerolineae) in pepper plants . The research by Nie et al showed that the Se and Bacillus proteolyticus SES combined application remedied the mixed pollution soil of Cu–Cd–Cr by increasing the soil acid phosphatase activity and the abundance of beneficial microorganisms (Microbacterium, Pseudomonas extremaustralis, Bacillus amyloliquefaciens, Priestia megaterium, and Bacillus subtilis) in ryegrass plants . Most contemporary research concerning microorganism effects concentrates on pollutants like heavy metals, with minimal emphasis on pesticides.…”

Section: Discussionmentioning

confidence: 99%

“…30 The research by Nie et al showed that the Se and Bacillus proteolyticus SES combined application remedied the mixed pollution soil of Cu−Cd−Cr by increasing the soil acid phosphatase activity and the abundance of beneficial microorganisms (Microbacterium, Pseudomonas extremaustralis, Bacillus amyloliquefaciens, Priestia megaterium, and Bacillus subtilis) in ryegrass plants. 45 Most contemporary research concerning microorganism effects concentrates on pollutants like heavy metals, with minimal emphasis on pesticides. In the research by Huang et al, biochar could relieve the toxicity of atrazine by improving plant growth indexes, soil quality, and bacterial abundance (Lysobacter, Paenarthrobacter, and Sediminibacterium) in soybean plants.…”

Section: ■ Discussionmentioning

confidence: 99%

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Multiomics Explore the Detoxification Mechanism of Nanoselenium and Melatonin on Bensulfuron Methyl in Wheat Plants

Zhou,

Miao,

Dong

et al. 2024

J. Agric. Food Chem.

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Combining nanoselenium (nano-Se) and melatonin (MT) was more effective than treatment alone against abiotic stress. However, their combined application mitigated the toxic effects of bensulfuron methyl, and enhanced wheat growth and metabolism has not been studied. Metabolomics and proteomics revealed that combining nano-Se and MT markedly activated phenylpropanoid biosynthesis pathways, elevating the flavonoid (quercetin by 33.5 and 39.8%) and phenolic acid (vanillic acid by 38.8 and 48.7%) levels in leaves and roots of wheat plants. Interstingly, beneficial rhizosphere bacteria in their combination increased (Oxalobacteraceae, Nocardioidaceae, and Xanthomonadaceae), which positively correlated with the enhancement of soil urease and fluorescein diacetate enzyme activity (27.0 and 26.9%) and the allelopathic substance levels. To summarize, nano-Se and MT mitigate the adverse effects of bensulfuron methyl by facilitating interactions between the phenylpropane metabolism of the plant and the beneficial microbial community. The findings provide a theoretical basis for using nano-Se and MT to remediate herbicidecontaminated soil.

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Section: Discussionmentioning

confidence: 99%

Section: ■ Discussionmentioning

confidence: 99%

Multiomics Explore the Detoxification Mechanism of Nanoselenium and Melatonin on Bensulfuron Methyl in Wheat Plants

Zhou,

Miao,

Dong

et al. 2024

J. Agric. Food Chem.

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“…Formerly classified as Bacillus megaterium , the bacterium P . megaterium has been studied extensively for its resistance to PTEs and its contribute in the improvement of contaminated soils for plant settlement, including trials on abandoned mine tailings ( Bennis et al, 2022 ; Lin et al, 2022 ; Nie et al, 2023 ; Pattanaik et al, 2023 ). Guzman-Moreno et al (2022) found the presence of all the genes for urease synthesis ( ureA , ureB , ureC , ureE , ureF and ureD ), however, urease assays resulted negative, suggesting that the expression of this enzyme could be induced only in presence of urea.…”

Section: Discussionmentioning

confidence: 99%

MICP mediated by indigenous bacteria isolated from tailings for biocementation for reduction of wind erosion

Maureira,

Zapata,

Olave

et al. 2024

Front. Bioeng. Biotechnol.

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In this study, native ureolytic bacteria were isolated from copper tailings soils to perform microbial-induced carbonate precipitation (MICP) tests and evaluate their potential for biocement formation and their contribution to reduce the dispersion of particulate matter into the environment from tailings containing potentially toxic elements. It was possible to isolate a total of 46 bacteria; among them only three showed ureolytic activity: Priestia megaterium T130-1, Paenibacillus sp. T130-13 and Staphylococcus sp. T130-14. Biocement cores were made by mixing tailings with the isolated bacteria in presence of urea, resulting similar to those obtained with Sporosarcina pasteurii and Bacillus subtilis used as positive control. Indeed, XRD analysis conducted on biocement showed the presence of microcline (B. subtilis 17%; P. megaterium 11. 9%), clinochlore (S. pasteurii, 6.9%) and magnesiumhornblende (Paenibacillus sp. 17.8%; P. megaterium 14.6%); all these compounds were not initially present in the tailings soils. Moreover the presence of calcite (control 0.828%; Paenibacillus sp. 5.4%) and hematite (control 0.989%; B. subtilis 6.4%) was also significant unlike the untreated control. The development of biofilms containing abundant amount of Ca, C, and O on microscopic soil particles was evidenced by means of FE-SEM-EDX and XRD. Wind tunnel tests were carried out to investigate the resistance of biocement samples, accounted for a mass loss five holds lower than the control, i.e., the rate of wind erosion in the control corresponded to 82 g/m2h while for the biocement treated with Paenibacillus sp. it corresponded to only 16.371 g/m2h. Finally, in compression tests, the biocement samples prepared with P. megaterium (28.578 psi) and Paenibacillus sp. (28.404 psi) showed values similar to those obtained with S. pasteurii (27.102 psi), but significantly higher if compared to the control (15.427 psi), thus improving the compression resistance capacity of the samples by 85.2% and 84.1% with respect to the control. According to the results obtained, the biocement samples generated with the native strains showed improvements in the mechanical properties of the soil supporting them as potential candidates in applications for the stabilization of mining liabilities in open environments using bioaugmentation strategies with native strains isolated from the same mine tailing.

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“…Besides, Jiao et al [37] recently reported that the addition of 0.1 mg/kg nano‐Se to soil would cause the crosstalk between root exudates and rhizobacteria, which significantly promoted rice seedling growth. Nie et al [38] also proved that the addition of exogenous Se during rhizosphere bacterial inoculation could promote plant growth and heavy metals resistance. In another aspect, rhizosphere bacterium is also critical for Se transformation along the plant–soil continuum [39–41].…”

Section: Discussionmentioning

confidence: 99%

A novel selenite‐tolerant rhizosphere bacterium Wautersiella enshiensis sp. nov., isolated from Chinese selenium hyperaccumulator, Cardamine hupingshanensis

Yuan

Xia

2023

J Basic Microbiol

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Selenium (Se) is a dietary essential trace element for humans with various physiological functions and it could also be accumulated by some plant species, like Astragalus bisulcatus, Stanleya pinnata, and Cardamine hupinshanensis. A novel Gram‐stain‐negative, facultatively anaerobic, selenite‐tolerant bacterium, designated strain YLX‐1T, was isolated from the rhizosphere of a Se hyperaccumulating plant, Cardamine hupingshanensis in Enshi, China. Phylogenetic analysis based on 16 S rRNA gene sequences indicated that strain YLX‐1T is a potential new species in the genus Wautersiella. Strain YLX‐1T could grow in the temperature range of 4–37°C (optimally at 28°C) and in the pH range of 5–9 (optimum pH 7), which also could tolerate Se up to 6000 mg Se/L via producing extracellular red nano‐Se with 100–300 nm size. However, it could predominantly accumulate selenocystine (SeCys2) in the cell under lower Se stress (1.5 mg Se/L). These results would help broaden our knowledge about the Se accumulation and transformation mechanism involved in rhizosphere bacteria like strain YLX‐1T in C. hupingshanensis. Based on polyphasic data, we propose the creation of the new species Wautersiella enshiensis sp. nov., strain YLX‐1T ( = CCTCC M 2013671) which will be promising to produce nano‐Se as fertilizer, food additives or medicine.

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Selenium and Bacillus proteolyticus SES synergistically enhanced ryegrass to remediate Cu–Cd–Cr contaminated soil

Cited by 26 publications

References 77 publications

Multiomics Explore the Detoxification Mechanism of Nanoselenium and Melatonin on Bensulfuron Methyl in Wheat Plants

Multiomics Explore the Detoxification Mechanism of Nanoselenium and Melatonin on Bensulfuron Methyl in Wheat Plants

MICP mediated by indigenous bacteria isolated from tailings for biocementation for reduction of wind erosion

A novel selenite‐tolerant rhizosphere bacterium Wautersiella enshiensis sp. nov., isolated from Chinese selenium hyperaccumulator, Cardamine hupingshanensis

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