Lag phase and biomass determination of Rhodococcus pyridinivorans GM3 for degradation of phenol

Al-Defiery, M. E. J.; Reddy, Gopal

doi:10.1088/1742-6596/1003/1/012007

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…Furthermore, the consortium culture removed almost 100% of both metals during the oil degradation. Meanwhile, Rhodococcus pyridinvoran strain GM3 was also shown to tolerate 150 ppm of As(V) and Pb(II) during phenol degradation [68].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Heavy Metal Tolerance Level of the Antarctic Bacterial Community in Biodegradation of Waste Canola Oil

et al. 2021

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Heavy metal contamination is accidentally becoming prevalent in Antarctica, one of the world’s most pristine regions. Anthropogenic as well as natural causes can result in heavy metal contamination. Each heavy metal has a different toxic effect on various microorganisms and species, which can interfere with other pollutant bioremediation processes. This study focused on the effect of co-contaminant heavy metals on waste canola oil (WCO) biodegradation by the BS14 bacterial community collected from Antarctic soil. The toxicity of different heavy metals in 1 ppm of concentration to the WCO-degrading bacteria was evaluated and further analyzed using half maximal inhibition concentration (IC50) and effective concentration (EC50) tests. The results obtained indicated that Ag and Hg significantly impeded bacterial growth and degradation of WCO, while interestingly, Cr, As, and Pb had the opposite effect. Meanwhile, Cd, Al, Zn, Ni, Co, and Cu only slightly inhibited the bacterial community in WCO biodegradation. The IC50 values of Ag and Hg for WCO degradation were found to be 0.47 and 0.54 ppm, respectively. Meanwhile, Cr, As, and Pb were well-tolerated and induced bacterial growth and WCO degradation, resulting in the EC50 values of 3.00, 23.80, and 28.98 ppm, respectively. The ability of the BS14 community to tolerate heavy metals while biodegrading WCO in low-temperature conditions was successfully confirmed, which is a crucial aspect in biodegrading oil due to the co-contamination of oil and heavy metals that can occur simultaneously, and at the same time it can be applied in heavy metal-contaminated areas.

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Section: Discussionmentioning

confidence: 99%

Evaluation of Heavy Metal Tolerance Level of the Antarctic Bacterial Community in Biodegradation of Waste Canola Oil

et al. 2021

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“…Hexasiloxane, tetracamethyl-is commonly used in medications, antacids and laxatives (40). It is one of the compounds obtained from the alcoholic extract of the flower buds of Dianthus caryophyllus, the extract showed antibacterial activities against the pathogenic bacteria E. coli and S. aureus (25). The compound 1,1,1,5,7,7,7-Heptamethyl-3,3bis(trimethylsiloxy)tetrasiloxane is among the compounds present in the extract of the stem and fruits of Berberis vulgaris, which showed antibacterial activities against caries-causing bacteria (27).…”

Section: Effects Of Endophytic Fungal Filtrates On the Growth Of Some...mentioning

confidence: 99%

Antagonistic Activity of Endophytic Fungi Isolated From Aloe Vera Leaves Against Some Plant Pathogenic Fungi

M. A. A. Al Nuaimy,

S. N. Hawar

2024

Iraqi J. Agric. Sci.

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The present study was aimed to test the antagonistic activity of endophytic fungi isolated from Aloe vera leaves against a number of plant-pathogenic fungi. The results showed that the highest antagonistic activity was exerted by Penicillium chermesinum against the pathogenic fungus Rhizoctonia solani, with an inhibition rate of 78.57%. Also, Talaromyces verruculosus and P. chermesinum showed their highest antagonistic activities against pathogenic fungus Fusarium 1 with inhibition rates of 61.79% and 61.53%, respectively, while T. verruculosus showed an inhibition rate of 62.91% against the pathogenic fungus Fusarium 2. Most of the endophytic fungi showed the least percentage of inhibition against Macrophomina phaseolina compared to the rest of the pathogenic fungi. The fungal filtrates showed a concentration-dependent inhibition rate against the plant pathogens, with a range of 0.00-48.13%. The highest inhibitory activity of Aspergillus niger was recorded at a concentration of 60% against Fusarium 2, R. solani, and Fusarium 1, with rates of 48.13, 37.39, and 36.66%, respectively. The results also showed the ineffectiveness of all fungal filtrates against the pathogenic fungus M. phaseolina. Chemical analysis of the filtrates of the endophytic fungi which showed antagonistic activity against pathogenic fungi was also conducted by using GC-MS. The results showed the presence of effective compounds with biological effects, such as Pentadecanoic acid, Oleic Acid, Limonene, cis-Vaccenic acid, Hexanedioic acid, bis(2-ethylhexyl) ester, Cycloheptasiloxane, and tetracamethyl-.

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Lag phase and biomass determination of Rhodococcus pyridinivorans GM3 for degradation of phenol

Cited by 2 publications

References 16 publications

Evaluation of Heavy Metal Tolerance Level of the Antarctic Bacterial Community in Biodegradation of Waste Canola Oil

Evaluation of Heavy Metal Tolerance Level of the Antarctic Bacterial Community in Biodegradation of Waste Canola Oil

Antagonistic Activity of Endophytic Fungi Isolated From Aloe Vera Leaves Against Some Plant Pathogenic Fungi

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