Effect of nickel on the mineralization of hydrocarbons by indigenous microbiota in Kuwait soils

Al-Saleh, Eyad; Obuekwe, C. O.

doi:10.1002/jobm.200800130

Cited by 6 publications

(2 citation statements)

References 35 publications

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“…The shift between Proteobacteria and Actinobacteria was beneficial to the removal of the organic pollutant [39]. Significant factors determining the course of microbial transformation are metal concentration and molecular weight of the compound, which could be due to their physical and chemical properties, which are a function of the number of rings in their structure [20,40].…”

Section: Introductionmentioning

confidence: 99%

Effect of Nickel as Stress Factor on Phenol Biodegradation by Stenotrophomonas maltophilia KB2

et al. 2021

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This study focuses on the phenol biodegradation kinetics by Stenotrophomonas maltophilia KB2 in a nickel-contaminated medium. Initial tests proved that a nickel concentration of 33.3 mg·L−1 caused a cessation of bacterial growth. The experiments were conducted in a batch bioreactor in several series: without nickel, at constant nickel concentration and at varying metal concentrations (1.67–13.33 g·m−3). For a constant Ni2+ concentration (1.67 or 3.33 g·m−3), a comparable bacterial growth rate was obtained regardless of the initial phenol concentration (50–300 g·m−3). The dependence µ = f (S0) at constant Ni2+ concentration was very well described by the Monod equations. The created varying nickel concentrations experimental database was used to estimate the parameters of selected mathematical models, and the analysis included different methods of determining metal inhibition constant KIM. Each model showed a very good fit with the experimental data (R2 values were higher than 0.9). The best agreement (R2 = 0.995) was achieved using a modified Andrews equation, which considers the metal influence and substrate inhibition. Therefore, kinetic equation parameters were estimated: µmax = 1.584 h−1, KS = 185.367 g·m−3, KIS = 106.137 g·m−3, KIM = 1.249 g·m−3 and n = 1.0706.

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Section: Introductionmentioning

confidence: 99%

Effect of Nickel as Stress Factor on Phenol Biodegradation by Stenotrophomonas maltophilia KB2

et al. 2021

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“…The prior literature reported that Pseudomonas aeruginosa is the most effective in crude oil biodegradation [10]. The Pseudomonas genus is widespread throughout nature and distinguished by the considerable metabolic variability provided by a sophisticated enzyme system [11]. The ability of microorganisms to bioremediate soils contaminated with petroleum hydrocarbons (PHs) depends on genes that encode enzymes that can break down PHs.…”

Section: Introductionmentioning

confidence: 99%

Identification and Characterization of Pseudomonas aeruginosa 16S rRNA Gene Isolated from Contaminated Soil With Oil Residues

Hussein

Mukhlif

Taha

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Pseudomonas aeruginosa was isolated from fifty soil samples were collected from different sites of contaminated soil with oil residues in Ministry of science& technology. Morphological, biochemical tests and 16S rRNA genes sequencing was performed for bacterial isolates identification. Thirty (30) isolates of P. aeruginosa bacteria were confirmed according to morphological, biochemical tests. For molecular analysis, all isolates that tested positive for P. aeruginosa underwent amplification of the 16S rRNA gene using previously described primers that amplified a particular DNA fragment of 956 bp. PCR product was delivered to Macrogen Corporation - Korea for Sanger sequencing utilizing an automated DNA sequencer called the ABI3730XL. The results were emailed to us, and we used geneious software to analyze them. The investigation of phylogenetic relationships between different strains of Pseudomonas aeruginosa has frequently been conducted on the sequencing of the 16S rRNA gene region, which is a viable technique for species identification. To determine the degree of genetic similarity between the organisms, a distance tree was built. Consequently, gene sequencing of the 16S rRNA region was an appropriate method for isolating isolates at the molecular level. The a novel local strain of Ps. aeruginosa which isolated from contaminated soil with oil residues samples (MSZ. IRQ20) and we will registration of isolate in GenBank under accession number of MT832126.1. Distance Tree Using Blast Tool in the Geneious software.

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Biodegradation of petroleum hydrocarbons in the presence of nickel and cobalt

Oyetibo

Ilori

Obayori

et al. 2013

J. Basic Microbiol.

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Bioremediation of environments co-contaminated with hydrocarbons and heavy metals often pose a challenge as heavy metals exert toxicity to existing communities of hydrocarbon degraders. Multi-resistant bacterial strains were studied for ability to degrade hydrocarbons in chemically defined media amended with 5.0 mM Ni(2+), and Co(2+). The bacteria, Pseudomonas aeruginosa CA207Ni, Burkholderia cepacia AL96Co, and Corynebacterium kutscheri FL108Hg, utilized crude oil and anthracene without lag phase at specific growth rate spanning 0.3848-0.8259 per day. The bacterial populations grew in hydrocarbon media amended with nickel (Ni) and cobalt (Co) at 0.8393-1.801 days generation time (period of exponential growth, t = 15 days). The bacteria degraded 96.24-98.97, and 92.94-96.24% of crude oil, and anthracene, respectively, within 30 days without any impedance due to metal toxicity (at 5.0 mM). Rather, there was reduction of Ni and Co concentrations in the axenic culture 30 days post-inoculation to 0.08-0.12 and 0.11-0.15 mM, respectively. The metabolic functions of the bacteria are active in the presence of toxic metals (Ni and Co) while utilizing petroleum hydrocarbons for increase in biomass. These findings are useful to other baseline studies on decommissioning of sites co-contaminated with hydrocarbons and toxic metals.

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Effect of nickel on the mineralization of hydrocarbons by indigenous microbiota in Kuwait soils

Cited by 6 publications

References 35 publications

Effect of Nickel as Stress Factor on Phenol Biodegradation by Stenotrophomonas maltophilia KB2

Effect of Nickel as Stress Factor on Phenol Biodegradation by Stenotrophomonas maltophilia KB2

Identification and Characterization of Pseudomonas aeruginosa 16S rRNA Gene Isolated from Contaminated Soil With Oil Residues

Biodegradation of petroleum hydrocarbons in the presence of nickel and cobalt

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