Solubilization of manganese from ores by heterotrophic micro-organisms

Baglin, E. G.; Noble, E. G.; Lamsphire, D.L.; Eisele, J. A.

doi:10.1016/0304-386x(92)90009-o

Cited by 15 publications

(6 citation statements)

References 5 publications

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“…While in presence of glucose R6 became chemotactially more active than the non-energized cells present in media without glucose this could be directly responsible for higher mobilization of Mn (Torrella and Morita, 1981). Glucose oxidation by R6 in presence of basalt leads to the reduction of Mn-oxide which directly supports Roh et al (2002) theory of glucose utilization by heterotrophic bacteria as an electron donor for the reduction of Mn oxide proposed by Madgwick (1987) and Baglin et al (1992) with reference to the solubilisation of Mn from ores. Although the pH of seawater ranged from 7.5 to 8.4 and pH decrease may occur during bacterial growth under experimental conditions.…”

Section: Discussionsupporting

confidence: 74%

Microcosom investigation of Mn mobilization in basalt rock by potential bacteria R6 from Carlsberg ridge ecosystem

BS¹

2015

Biolife

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The biomining can happen in basalt rocks from ridges which contains around 25% Mn in the form of different minerals and oxides due to deep sea hydrothermal activity. The prime goal of this experiment was to demonstrate Mn mobilization from natural Mn minerals and oxides using striping voltammetry from basalt near deep-sea hydrothermal vents (DSHVs) by a potential bacterial isolate R6 which was isolated from this environment. Natural basalt sample was collected from the carls berg ridge during ABP-36 cruise and was characterized by scanning electron microscopy (SEM) and X-ray diffractometry. Bacterial isolation was done in laboratory by spread plate method using 100uM Mn amended NA media plates. Isolated bacteria R6 (Accsession No. LK934696) and basalt sample were used in a laboratory batch experiment. The isolate R6 (identified as marine Bacteria Imtechella halotolerans sp.) and natural basalt rock were placed in 100% seawater in the presence and absence of an organic carbon supplement as 0.01% glucose (analogous abiotic and chemical controls systems were also included). This laboratory batch experiment was incubated in the dark at 28 ± 2 °C for 6 months and cell bio mass, pH, Eh and concentrations of mobilized Mn ions were measured over time. The presence of the bacteria induced the release of Mn from the basalt relative to the controls, especially with the addition of the organic carbon supplement. Bacteria was able to draw significant mobilization rate 27985.91 and 4797.37 μg g -1 d -1 with and without glucose added in biological experiment part when compared with abiotic and chemical controls. Bacterial colonies on the basalt fragments surfaces were examined by SEM which shows evidence of extrapolysaccherides secretion and mineral precipitation. The results of this study suggest that chemoorganotrophic bacteria are involved in the cycling of Mn mobilization in basalt near DSHVs. (2015).Microcosom investigation of Mn mobilization in basalt rock by potential bacteria R6 from Carlsberg ridge ecosystem. Biolife, 3(2), pp 415-427. http://dx.

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Section: Discussionsupporting

confidence: 74%

Microcosom investigation of Mn mobilization in basalt rock by potential bacteria R6 from Carlsberg ridge ecosystem

BS¹

2015

Biolife

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“…Acharya et al (2003) have reported bioleaching of manganese ore (25.7% manganese) using Penicillium citrinum (fungus) and reported 68.3% leaching of manganese in 45 days. Baglin et al (1992) reported 90% of manganese recovery from manganese ores (14% manganese) using heterotrophic microorganisms in 28 days. Various other microorganisms, viz.…”

Section: Batch Studies On Bioleaching Of Manganese Tailingsmentioning

confidence: 97%

“…Various other microorganisms, viz. Thiobacillus ferrooxidans, Aspergillus niger, Penicillium strain, Sulfooxidan strains (Gupta and Ehrlich, 1989;Abbruzzesi et al, 1990;Baglin et al, 1992;Vegilo, 1996;Breed and Hansford, 1999), have been proved to be successful for bioleaching of manganese. But the studies on bioleaching of manganese by T. thiooxidans are limited (Porro et al, 1990).…”

Section: Batch Studies On Bioleaching Of Manganese Tailingsmentioning

confidence: 99%

“…The manganese from these ores is extracted using chemical methods, and the wastes (manganese tailings) are discarded and dumped in the environment, which leads to increase in toxicity of the surrounding areas and thereby results in disturbance of ecosystem. The development of low-cost treatment system for recovery of manganese is the urgent requirement (Trimble and Ehrlich, 1968;Ehrlich, 1973;Adams and Ghiorse, 1984;Ehrlich, 1987;Gupta and Ehrlich, 1989;Baglin et al, 1992;Srimekanond et al, 1992;Vegilo, 1996).…”

Section: Introductionmentioning

confidence: 99%

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Biokinetics of Thiobacillus thiooxidans for manganese bioleaching

Lodha¹,

Badhane²,

Srivastava³

et al. 2010

IJEP

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The waste tailing of metals generated during mining processes is degrading the environment by increasing the soil toxicity, leading to disturbances in the ecosystem. This study was initiated to determine the biokinetics of Thiobacillus thiooxidans for manganese bioleaching in the presence of excess sulphur. In batch studies, the effect of manganese concentration on the leaching efficiency of T. thiooxidans was also evaluated, and it was found that as the concentration of manganese increases, the leaching efficiency decreases. This may be due to an inhibitory effect of manganese at higher concentrations. The maximum leaching efficiency of more than 95% was found at lower manganese concentration of 5-25 mg/litre, while the efficiency significantly decreases to 35% at 200 mg/litre manganese. The biokinetic coefficient (maximum growth rate and inhibition constant) was also determined for T. thiooxidans for manganese bioleaching using Haldane's equation. A linear mathematical relationship was also developed between leaching efficiency, initial manganese concentration and time of incubation, which would be useful in predicting the leaching efficiency under various conditions. The significance test using T-paired test was also performed, and it was found that the theoretical leaching efficiency is above 95% confidence level from observed leaching efficiency. The above parameters are invariably required for the design and simulation of batch and continuous bioreactors for bioleaching of manganese tailings. The present work may be useful for management of tailing waste generated during mining processes.

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“…Manganese (IV) is reduced to Mn(II) through biological or chemical processes due to the presence of protons and electron-carrying reducing agents produced by plant roots, microorganisms, or through organic matter decomposition ( Uren, 1981 ). Various Mn-reducing microorganisms, e.g., Arthrobacter , Acinetobacter , Achromobacter , Aspergillus , Bacillus , Clostridium , Enterobacter , Lysinibacillus , Micrococcus , Pseudomonas , and Staphylococcus , have been reported in the literature ( Baglin et al, 1992 ; Das et al, 2012 ; Ghosh et al, 2016 ). Inoculation with Mn-reducing microorganisms, especially bacteria, can improve Mn uptake and plant growth in Mn-deficient soil ( Huber and McCay-Buis, 1993 ).…”

Section: Introductionmentioning

confidence: 99%

Insights Into Manganese Solubilizing Bacillus spp. for Improving Plant Growth and Manganese Uptake in Maize

et al. 2021

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Manganese (Mn) is an essential micronutrient for plant growth that is involved in the structure of photosynthetic proteins and enzymes. Mn deficiency is widespread mainly in dry, calcareous, and sandy soil, which leads to a significant decrease in crop yield. Mn-reducing bacteria promote the solubilization of Mn minerals, thus increasing Mn availability in soil. The present study aimed to assess the Mn solubilizing ability and plant growth-promoting potential of Bacillus spp. strains for maize plants with insoluble Mn compounds. Several Mn-solubilizing bacterial (MSB) strains were isolated from the maize rhizosphere using nutrient agar media amended with 50 mM MnO2. These strains were screened based on qualitative and quantitative solubilization of Mn, phosphorus, potassium, and zinc and production of ammonia. The majority of MSB strains were positive for catalase, protease, amylase, and oxidase activity, while more than 60% of tested strains were positive for lipase activity, and the production of indole-3-acetic acid and siderophores. Forty-five percent of the tested strains also showed solubilization of potassium. All the MSB strains were evaluated for their ability to promote plant growth and Mn uptake in the presence of MnO2 under axenic sand culture conditions. The results revealed that inoculation with MSB strains under sand culture significantly improved the growth of maize seedlings except for strains ASH7, ASH10, and ASH12. Comparatively, strains ASH6, ASH11, ASH19, ASH20, and ASH22 demonstrated a better increase in plant growth, fresh and dry biomass, and Mn uptake in roots and shoots than the other strains tested. All of these strains were identified as Bacillus spp. through 16S rRNA partial gene sequencing. Maize inoculation with these selected identified MSB strains also resulted in an increase in maize growth and nutrient uptake in maize roots and shoots under soil culture conditions in the presence of native soil Mn. The current study highlights the importance of MSB strain inoculation which could be a potential bioinoculants to promote plant growth under Mn deficiency.

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Solubilization of manganese from ores by heterotrophic micro-organisms

Cited by 15 publications

References 5 publications

Microcosom investigation of Mn mobilization in basalt rock by potential bacteria R6 from Carlsberg ridge ecosystem

Microcosom investigation of Mn mobilization in basalt rock by potential bacteria R6 from Carlsberg ridge ecosystem

Biokinetics of Thiobacillus thiooxidans for manganese bioleaching

Insights Into Manganese Solubilizing Bacillus spp. for Improving Plant Growth and Manganese Uptake in Maize

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