Phenotypic heterogeneity of Pseudomonas aeruginosa isolates in the protected nature park ‘Palić’ (Serbia)

Vujović, Bojana; Teodorović, Smilja; Rudić, Željka; Božić, Mile; Raičević, Vera

doi:10.2166/ws.2016.061

Cited by 5 publications

(5 citation statements)

References 13 publications

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“…Furthermore, finding widely distributed significant opportunistic pathogen of humans, animals and plants, Pseudomonas aeruginosa in Lake Palic and Palic-Ludas canal, but not in Lake Ludas itself [40], is in line with obtained self-purification capacity of water.…”

Section: Advances In Bioremediation and Phytoremediationsupporting

confidence: 57%

Potential and Constraints of Macrophyte Manipulation for Shallow Lake Management

Rudić¹,

Vujović²,

Jovanović³

et al. 2018

Advances in Bioremediation and Phytoremediation

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Palic and Ludas lakes are shallow Pannonian lakes, which have undergone rapid eutrophication. High concentrations of nutrients, along with significantly high values of fecal indicators in water samples, indicate that the Palic-Ludas canal, which connects them, contributes to the pollution of the recipient Lake Ludas, a central part of a special nature reserve. In order to improve water quality in the canal and decrease nutrient load of Lake Ludas, it is suggested to use environmentally friendly solutions, so-called bio-barriers (bio-bridges and biobanks), which will contribute to self-purification efficiency. The given model assumes 10 zones with bio-bridges and 0.4 ha covered by biobanks, using plants common in the area, e.g. Typha spp., Phragmites spp., Juncus spp., Scirpus spp. and Carex spp. The main disadvantage of this technology is occupation of large area; thus, the solution seems to be undersized. It removes 4% TN/year and 8% TP/year of the total amount necessary to achieve good ecological status. Nevertheless, the role of bio-bridges in permanent nutrient removal, through preventing the deposition of organic matter at the bottom sediment and later return of nutrients in water, together with indirect influence through enhancement of biodiversity should not be underestimated.

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Section: Advances In Bioremediation and Phytoremediationsupporting

confidence: 57%

Potential and Constraints of Macrophyte Manipulation for Shallow Lake Management

Rudić¹,

Vujović²,

Jovanović³

et al. 2018

Advances in Bioremediation and Phytoremediation

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“…This experiment was repeated 3 times for all isolates and standard strain ( P. aeruginosa ATCC 1074) similarly. The concentration of pyocyanin ( μg/ml ) was calculated according to the following formula, (OD 520 nm ×17.072 [molar attenuation coefficient])×1.5 [volume of hydrochloric acid], to determine the dilution factor following transfer into the acidic phase 22 , 23 .…”

Section: Methodsmentioning

confidence: 99%

The Effect of Silver Nanoparticles on Pyocyanin Production of Pseudomonas aeruginosa Isolated From Clinical Specimens

Najafi¹,

Moghaddam²,

Yousefi³

2021

AJMB

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Background: Pseudomonas aeruginosa (P. aeruginosa) is an opportunistic pathogen causing a wide range of human infections. The organism is resistant to a wide range of antibiotics. The purpose of this study was to investigate the effect of AgNPs on pyocyanin pigment production of P. aeruginosa bacteria isolated from clinical specimens. Methods: In this study, 15 clinical isolates of P. aeruginosa were collected from different specimens of hospitalized patients. P. aeruginosa was detected by biochemical and molecular (detection of pbo1 gene by colony PCR method) methods and the MIC and MBC of AgNPs were determined by agar dilution method. Inhibition of P. aeruginosa pyocyanin production at AgNPs concentrations of 0, 0.3, 0.5, 1 and 1.5 mg/ml of was studied with OD of 520 nm. Results: The mean MIC and MBC of AgNPs were 1.229 and 1.687 mg/ml, respectively. Pyocyanin production was investigated for all isolates at different concentrations of nanoparticles, and their comparison showed that with increasing nanoparticle concentration, pyocyanin production significantly decreased (p<0.05). Conclusion: According to the results of this study, AgNPs had an inhibitory effect on P. aeruginosa and its pigment production and with increasing nanoparticles concentration, pigment production decreased; therefore, it seems that the nanoparticles can be used to treat and prevent diseases caused by P. aeruginosa.

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“…An increasing detection indicates irrigation water as a source (or a vehicle) for transmission of Salmonella (Liu et al 2018). Another important microbe for the assessment of water quality is Pseudomonas which is a genus of a heterogeneous and ecologically important group of bacteria including Gram-negative, motile, aerobic rods and widespread (Vujović et al 2016). P. aeruginosa tolerates a wide range of physical conditions, including temperature.…”

Section: Microbiological Indicators In Water For Irrigationmentioning

confidence: 99%

Microbial Quality of Irrigation Water in Serbia: Risks to Food Safety

Rudić¹,

Kljujev

Vujović

et al. 2019

Springer Water

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The human pathogen bacteria can colonize and contaminate fresh vegetables and fruits in any part of production chain. Water for irrigation is recognized as a potential source of pathogens that can cause foodborne illnesses. Water is a very effective vector of the transmission of human pathogen to plants, so microbiologically safe water has a unique role in a safe food production. Due to expected water scarcity, the availability of good-quality water for irrigation will be affected, and irrigated agriculture will be challenged. Therefore, a sufficient resource of quality water for irrigation is crucial for sustainable agricultural production. Generally, in Serbia, all surface water resources (canals and rivers) are polluted to some extent, which becomes obvious particularly during the growing season. Even the quality of shallow groundwater occasionally exhibits the levels of faecal indicator bacteria that exceed the limits proposed by international standards for irrigation water quality. The presence of Escherichia coli, E. coli O157:H7, L. monocytogenes, Salmonella spp. on different kind of fresh vegetables has been confirmed, using different methods, i.e. PCR, green fluorescent protein (Gfp) for transformation bacteria, fluorescence in situ hybridization (FISH) and confocal laser scanning microscopy (CLSM). This research shows the ability of the human pathogens to surface, and

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Phenotypic heterogeneity of Pseudomonas aeruginosa isolates in the protected nature park ‘Palić’ (Serbia)

Cited by 5 publications

References 13 publications

Potential and Constraints of Macrophyte Manipulation for Shallow Lake Management

Potential and Constraints of Macrophyte Manipulation for Shallow Lake Management

The Effect of Silver Nanoparticles on Pyocyanin Production of Pseudomonas aeruginosa Isolated From Clinical Specimens

Microbial Quality of Irrigation Water in Serbia: Risks to Food Safety

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