Factors affecting growth of an n-hexadecane degrader Acinetobacter species isolated from a highly polluted urban river

Espeche, Maria E.; Cormack, Walter P. Mac; Fraile, Elda R.

doi:10.1016/0964-8305(94)90037-x

Cited by 24 publications

(13 citation statements)

References 21 publications

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“…The majority of the azo dye reducing bacterial species reported so far were able to reduce the dye at pH near 7 [30][31][32] . The requirement of near neutral pH for optimum growth had been reported in several studies [33][34][35] . Results indicate that a pH increase from 5.0 to 7.0 enhanced the decolorization of GGS dyes.…”

Section: Discussionmentioning

confidence: 99%

Optimization of conditions for the biological treatment of textile dyes using isolated soil bacteria

2018

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In the 21 century, environmental pollution has been Background: acknowledged as one of the major problems. The textile and dyeing industries contribute a major portion by discharging intensely complex effluent consisting of highly noxious azoic dyes.In this study, biological treatment using acclimatized microorganisms Methods: were employed in search of a cheap and eco-friendly substitute for color removal from textile waste. The microbial inocula were isolated from effluent soil samples and then applied to flasks containing azo dyes as the only source of carbon for decolorization.Biochemical tests postulated predominance of and Results: Enterococcus bacterial strains. CO isolate or emerged as the best Bacillus Bacillus farraginis decolorizer of Orange M2R dye, decolorizing 98% of the dye. BG isolate or showed maximum decolorization on Green GS dye Paenibacillus macerans that decolorized 97% of the dye. The optimum physiochemical condition for decolorization of OM2R and GGS dye was pH 7.0, 2% NaCl conc., 1% initial dye conc. and 37°C temperature by the selected isolates.The findings were validated and have the potential for Conclusions: bioremediation in textile waste effluent treatment plants.

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Section: Discussionmentioning

confidence: 99%

Optimization of conditions for the biological treatment of textile dyes using isolated soil bacteria

2018

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“…Such an advantageous influence on plant development under contamination might be additionally explained by composition of M10 consortium. It consisted of Enterobacter , Pseudomonas , Rhodococcus , and Acinetobacter strains that are known for their plant growth-promoting features (Saharan and Nehra 2011), as well as an excellent ability to degrade hydrocarbons (Sorkhoh et al 1990; Espeche et al 1994; Kuiper et al 2004; Chang et al 2011; Liu et al 2011; Tyagi et al 2011). As mentioned above, the root length of HEAR and Indian mustard inoculated with M10 consortium upon diesel oil treatments was also higher than in the case of the non-inoculated plants and significantly greater than those enriched in K52 bacteria.…”

Section: Discussionmentioning

confidence: 99%

Bioaugmentation with Petroleum-Degrading Consortia Has a Selective Growth-Promoting Impact on Crop Plants Germinated in Diesel Oil-Contaminated Soil

Graj

Lisiecki

Szulc

et al. 2013

Water Air Soil Pollut

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Rhizoremediation is a complex type of green clean-up technology that involves both plants and the rhizosphere-associated microorganisms to decompose hazardous compounds. The success of the strategy strongly depends on plant tolerance towards the pollutant, as well as plant's interactions with the rhizospheric microbes. The microorganisms may be stimulated by the secreted root exudates, which results in an increased breakdown of contaminants in the rhizosphere. The main goal of this study was to establish a potential rhizoremediation combination for a diesel-polluted site. Inoculation of plant roots or seeds with indigenous rhizospheric populations is a common approach in the rhizoremediation. However, we introduced hydrocarbon-degrading consortia (M10, R3, and K52) that were previously isolated from crude oil-contaminated soil instead of indigenous microbes. Bioaugmentation with these petroleum degraders was applied to screen four high biomass crop species (Indian mustard, alfalfa, high erucic acid rapeseed, HEAR, and low erucic acid rapeseed, LEAR) for their tolerance towards diesel oil. At no pollution, a promoting effect of M10 bacteria could be observed on germination and root elongation of all plant species. Moreover, M10 consortiums increased the germination index at 6,000 mg diesel oil per kilogram dry soil in the case of Indian mustard, alfalfa, and HEAR. The latter species was found to increment its dry weight upon bioaugmentation with M10 bacteria and all diesel oil treatments (6,000 and 24,000 mg diesel oil per kilogram dry soil). The initial results indicate HEAR and the M10 bacterial consortium as a promising plant–microbe tandem for a long-term rhizoremediation process.Electronic supplementary materialThe online version of this article (doi:10.1007/s11270-013-1676-0) contains supplementary material, which is available to authorized users.

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“…Using natural populations of microorganisms for the removal of petroleum and other hydrocarbon pollutants from the environment is cheaper than other remediation technologies [40]. A wide range of hydrocarbon concentrations (0.5 -6%) were used in biodegradation studies and varying growth was obtained [41][42][43][44][45]. In this study 2% (v/v) was used as carbon and energy source for the degradation and based on preliminary screening of biodegradation, two native bacterial species namely Achromobacter and Pseudomonas aeruginosa were isolated.…”

Section: Discussionmentioning

confidence: 99%

Characterization and Evaluation of Polycyclic Aromatic Hydrocarbon (PAH) Degrading Bacteria Isolated from Oil Contaminated Soil

Simaria¹,

Pant²

2015

Appli Micro Open Access

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Polycyclic aromatic hydrocarbons (PAHs) are common environmental pollutants and biodegradation using microorganisms is the preferred and major route of PAH removal from contaminated environments. This study investigated the bacterial degradation of petrol and diesel in liquid media that were isolated from oil contaminated soils by enrichment technique. The isolates could use petrol and diesel as their sole carbon and energy source in Bushnell Hass Mineral Salts (BHMS) medium at 2% (v/v) concentration. A total of eight isolates were selected and characterized by using a variety of phenotypic and morphologic properties. Two isolates each showed highest growth in petrol and diesel containing media during screening were selected and characterized using 16S RNA sequencing. Molecular identification of the isolates assigned them to Achromobacter sp. and Pseudomonas aeruginosa. The selected isolates degraded petrol and diesel up to 31.9% and 34.4% respectively. This study indicates that the contaminated soil samples contain a diverse population of PAH-degrading bacteria and the use of Achromobacter sp. and Pseduomonas aeruginosa has the potential for bioremediation of PAH contaminated sites.

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Factors affecting growth of an n-hexadecane degrader Acinetobacter species isolated from a highly polluted urban river

Cited by 24 publications

References 21 publications

Optimization of conditions for the biological treatment of textile dyes using isolated soil bacteria

Optimization of conditions for the biological treatment of textile dyes using isolated soil bacteria

Bioaugmentation with Petroleum-Degrading Consortia Has a Selective Growth-Promoting Impact on Crop Plants Germinated in Diesel Oil-Contaminated Soil

Characterization and Evaluation of Polycyclic Aromatic Hydrocarbon (PAH) Degrading Bacteria Isolated from Oil Contaminated Soil

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