Escravos light crude oil degrading potentials of axenic and mixed bacterial cultures

Odjadjare, Emmanuel E.; Ajisebutu, Stella O.; Igbinosa, Etinosa O.; Aiyegoro, Olayinka Ayobami; Trejo‐Hernández, María R.; Okoh, Anthony I.

doi:10.2323/jgam.54.277

Cited by 6 publications

(5 citation statements)

References 25 publications

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“…All four representative species have been reported in bioremediation/biodegradation studies [42,43,44,45] as well as Pseudomonal infections [46,47,48,49], suggesting that municipal wastewater effluent is an important reservoir of Pseudomonas species of both environmental and clinical significance. It is difficult to differentiate between pathogenic and non-pathogenic strains of Pseudomonas species.…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Multiple Antibiotics Resistant (MAR) Pseudomonas Species in the Final Effluents of Three Municipal Wastewater Treatment Facilities in South Africa

Odjadjare

Igbinosa

Mordi

et al. 2012

IJERPH

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The final effluents of three (Alice, Dimbaza, and East London) wastewater treatment plants (WWTPs) were evaluated to determine their physicochemical quality and prevalence of multiple antibiotics resistant (MAR) Pseudomonas species, between August 2007 and July 2008. The annual mean total Pseudomonas count (TPC) was 1.20 × 104 (cfu/100 mL), 1.08 × 104 (cfu/100 mL), and 2.66 × 104 (cfu/100 mL), for the Alice, Dimbaza, and East London WWTPs respectively. The effluents were generally compliant with recommended limits for pH, temperature, TDS, DO, nitrite and nitrate; but fell short of target standards for turbidity, COD, and phosphate. The tested isolates were highly sensitive to gentamicin (100%), ofloxacin (100%), clindamycin (90%), erythromycin (90%) and nitrofurantoin (80%); whereas high resistance was observed against the penicillins (90–100%), rifampin (90%), sulphamethoxazole (90%) and the cephems (70%). MAR index ranged between 0.26 and 0.58. The study demonstrated that MAR Pseudomonas species were quite prevalent in the final effluents of WWTPs in South Africa; and this can lead to serious health risk for communities that depend on the effluent-receiving waters for sundry purposes.

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Section: Discussionmentioning

confidence: 99%

Prevalence of Multiple Antibiotics Resistant (MAR) Pseudomonas Species in the Final Effluents of Three Municipal Wastewater Treatment Facilities in South Africa

Odjadjare

Igbinosa

Mordi

et al. 2012

IJERPH

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“…The antagonistic phenomenon is a common event showed in a mixed microbial population [39]. In case of Streptomyces spp.…”

Section: Resultsmentioning

confidence: 99%

Enhanced Removal of a Pesticides Mixture by Single Cultures and Consortia of Free and ImmobilizedStreptomycesStrains

Fuentes

Briceño

Sáez

et al. 2013

BioMed Research International

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Pesticides are normally used to control specific pests and to increase the productivity in crops; as a result, soils are contaminated with mixtures of pesticides. In this work, the ability of Streptomyces strains (either as pure or mixed cultures) to remove pentachlorophenol and chlorpyrifos was studied. The antagonism among the strains and their tolerance to the toxic mixture was evaluated. Results revealed that the strains did not have any antagonistic effects and showed tolerance against the pesticides mixture. In fact, the growth of mixed cultures was significantly higher than in pure cultures. Moreover, a pure culture (Streptomyces sp. A5) and a quadruple culture had the highest pentachlorophenol removal percentages (10.6% and 10.1%, resp.), while Streptomyces sp. M7 presented the best chlorpyrifos removal (99.2%). Mixed culture of all Streptomyces spp. when assayed either as free or immobilized cells showed chlorpyrifos removal percentages of 40.17% and 71.05%, respectively, and for pentachlorophenol 5.24% and 14.72%, respectively, suggesting better removal of both pesticides by using immobilized cells. These results reveal that environments contaminated with mixtures of xenobiotics could be successfully cleaned up by using either free or immobilized cultures of Streptomyces, through in situ or ex situ remediation techniques.

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“…However, for the construction of a defined mixed culture, the compatibility among the strains must be evaluated. The phenomenon of antagonism is a common event that has been observed in mixed microbial populations (Odjadjare et al, 2008). In particular, bacteria of the Streptomyces genus are recognized as important producers of secondary metabolites with antibacterial, immunosuppressive, antitumor and antifungal effects, among others (Alvarez et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Lindane dissipation in a biomixture: Effect of soil properties and bioaugmentation

Sáez

Bigliardo

Raimondo

et al. 2018

Ecotoxicology and Environmental Safety

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Escravos light crude oil degrading potentials of axenic and mixed bacterial cultures

Cited by 6 publications

References 25 publications

Prevalence of Multiple Antibiotics Resistant (MAR) Pseudomonas Species in the Final Effluents of Three Municipal Wastewater Treatment Facilities in South Africa

Prevalence of Multiple Antibiotics Resistant (MAR) Pseudomonas Species in the Final Effluents of Three Municipal Wastewater Treatment Facilities in South Africa

Enhanced Removal of a Pesticides Mixture by Single Cultures and Consortia of Free and ImmobilizedStreptomycesStrains

Lindane dissipation in a biomixture: Effect of soil properties and bioaugmentation

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