A wastewater bacterium Bacillus sp. KUJM2 acts as an agent for remediation of potentially toxic elements and promoter of plant (Lens culinaris) growth

Mondal, Monojit; Tsang, Yiu Fai; Sarkar, Binoy; Sarkar, Dibyendu; Rai, Mahendra; Sarkar, Santosh Kumar; Hooda, Peter S.

doi:10.1016/j.chemosphere.2019.05.156

Cited by 27 publications

(12 citation statements)

References 62 publications

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“…The bacterial strain E. cloacae R7 used in this study was capable of not only diminishing the content of Cd and Pb in root and shoot of forage maize plants but also significantly augmenting the root and shoot dry weight of this plant in the presence or absence of those heavy metals. Similar observation was reported by Mondal et al. (2019) .…”

Section: Discussionsupporting

confidence: 92%

“…For example, heavy metal–resistant Bacillus sp. KUJM2 diminished the content of As, Cd, Cu, and Ni in lentil plant ( Lens culinaris ) by immobilizing these metals in the rhizosphere soils ( Mondal et al., 2019 ). Cadmium–resistant B. megaterium H3 boosted immobilization of Cd and diminished metal bioaccessibility, absorption and translocation in rice plant, therewith attenuating metal toxicity ( Li et al., 2017b ), whereas B. thuringiensis X30 diminished Cd and Pb concentration in radish by immobilizing Cd and Pb in the rhizosphere soils ( Han et al., 2018 ).…”

Section: Discussionmentioning

confidence: 99%

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Combined use of municipal solid waste biochar and bacterial biosorbent synergistically decreases Cd(II) and Pb(II) concentration in edible tissue of forage maize irrigated with heavy metal–spiked water

Abedinzadeh

Etesami

Alikhani

et al. 2020

Heliyon

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A pot experiment was carried out to evaluate the effect of a municipal solid waste (MSW) biochar and a bacterial strain on the forage maize growth and the concentration of lead (Pb) and cadmium (Cd) in the edible tissue of maize irrigated with water contaminated with Cd (5 mg L −1 ) and Pb (100 mg L −1 ). Experimental treatments included (i) bacterial strain at two levels: no bacterial strain and Enterobacter cloacae R7; (ii) MSW biochar at three levels: 0, 1, and 3% ( w/w ); and (iii) irrigation water quality at five levels: plants irrigated with 100% freshwater (FW), plants irrigated with 75%FW + 25% contaminated water (CW), plants irrigated with 50%FW + 50% CW, plants irrigated with 25%FW + 75% CW, and plants irrigated with 100% CW. The effect of various treatments on maize growth indices and concentration of Pb(II) and Cd(II) in the plant was significant at 5% level. The concentration of these metals in the shoot of plants irrigated with 75 and 100% CW was higher than the permissible limits for Cd(II) and Pb(II) in livestock feed. However, the concentration of these metals in the shoot of the plants irrigated with 25 and 50% CW was lower than the permissible limit for this use. In this study, the combined application of 3%biochar and E. cloacae R7 had a significant effect on increased root dry weight (ranging from 29 to 33%), shoot dry weight (ranging from 32 to 43%) and bacterial root colonization (ranging from 33 to 53%) and on reduced concentration of Pb (ranging from 78 to 80%) and Cd (ranging from 72 to 76%) of the shoot of maize plant (edible tissues used by livestock), which was below the permissible limits for livestock feed, compared to corresponding controls. According to the results of this study, to reduce the concentration of the heavy metals in forage maize shoot (below the permissible limits for livestock feed), it is suggested using heavy metal–contaminated water either in combination with freshwater (50 or 75% FW) or in combination with biochar and bacterial biosorbent, averting human/animal health risk.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Combined use of municipal solid waste biochar and bacterial biosorbent synergistically decreases Cd(II) and Pb(II) concentration in edible tissue of forage maize irrigated with heavy metal–spiked water

Abedinzadeh

Etesami

Alikhani

et al. 2020

Heliyon

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“…Cd, Pb, Cu, Ni, Zn, As) [68] in soil by producing polymeric substances which can effectively chelate metal ions [74]. In that way, the harmful effects of metals on plants are lowered by reduced metal bioavailability, uptake and translocation [73] and allows for enhanced heavy metal phytoremediation [68]. In our previous study [21] the potential of two Bacillus strains in producing substances promoting plant growth was demonstrated.…”

Section: Plos Onementioning

confidence: 99%

“…In addition, its potential in the promotion of A. filiculoides growth was demonstrated [21]. Mondal and co-workers [73] studied the potential of Bacillus sp. KUJM2 for remediation of potentially toxic elements.…”

Section: Plos Onementioning

confidence: 99%

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Azolla filiculoides L. as a source of metal-tolerant microorganisms

et al. 2020

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The metal hyperaccumulator Azolla filiculoides is accompanied by a microbiome potentially supporting plant during exposition to heavy metals. We hypothesized that the microbiome exposition to selected heavy metals will reveal metal tolerant strains. We used Next Generation Sequencing technique to identify possible metal tolerant strains isolated from the metaltreated plant (Pb, Cd, Cr(VI), Ni, Au, Ag). The main dominants were Cyanobacteria and Proteobacteria constituting together more than 97% of all reads. Metal treatment led to changes in the composition of the microbiome and showed significantly higher richness in the Pb-, Cd-and Cr-treated plant in comparison with other (95-105 versus 36-44). In these treatments the share of subdominant Actinobacteria (0.4-0.8%), Firmicutes (0.5-0.9%) and Bacteroidetes (0.2-0.9%) were higher than in non-treated plant (respectively: 0.02, 0.2 and 0.001%) and Ni-, Au-and Ag-treatments (respectively: <0.4%, <0.2% and up to 0.2%). The exception was Au-treatment displaying the abundance 1.86% of Bacteroidetes. In addition, possible metal tolerant genera, namely: Acinetobacter,

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Bacillus as a Versatile Tool for Crop Improvement and Agro-Industry

Mukherjee

Pandey

Parvez

et al. 2022

Bacilli in Climate Resilient Agriculture and Bioprospecting

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A wastewater bacterium Bacillus sp. KUJM2 acts as an agent for remediation of potentially toxic elements and promoter of plant (Lens culinaris) growth

Abstract: A wastewater bacterium Bacillus sp. KUJM2 acts as an agent for remediation of potentially toxic elements and promoter of plant (Lens culinaris) growth

Cited by 27 publications

References 62 publications

Combined use of municipal solid waste biochar and bacterial biosorbent synergistically decreases Cd(II) and Pb(II) concentration in edible tissue of forage maize irrigated with heavy metal–spiked water

Combined use of municipal solid waste biochar and bacterial biosorbent synergistically decreases Cd(II) and Pb(II) concentration in edible tissue of forage maize irrigated with heavy metal–spiked water

Azolla filiculoides L. as a source of metal-tolerant microorganisms

Bacillus as a Versatile Tool for Crop Improvement and Agro-Industry

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