Impact of metal exposure on environmentally isolated Serratia marcescens’ growth, oxidative-stress resistance, biofilm formation, and proliferation in eukaryotic co-culture models

Adedoyin, Folasade T; Sridhar, B. B. Maruthi; Rosenzweig, Jason A.

doi:10.1016/j.ecoenv.2023.114677

Cited by 3 publications

(3 citation statements)

References 22 publications

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“…To optimize the removal, it is important to evaluate the behavior of heavy metals together with the characteristics of the adsorbent; in the literature, it has been found that the mechanism of biosorption is not yet fully understood as this process is determined by physiology, chemical and physicochemical factors, ionic strength, i.e., metal ion chemistry, pH, temperature, metal concentration, contact time, the composition of the cell wall, and physiological characteristics of the microorganism [41][42][43]. Although the removal of Pb was not considerable or close to the permitted levels (0.05 mg/L) according to Peruvian legislation, possibly due to extrinsic and intrinsic aspects of the bacterium or due to independent variables that were not taken into account, for example, the contact time, this study serves as a reference to establish differences regarding the methods of removal of Pb by the bacterium S. marcescens [44,45].…”

Section: Discussionmentioning

confidence: 80%

An In Vitro Study of the Effects of Temperature and pH on Lead Bioremoval Using Serratia marcescens

Lecca-Caballero,

Vega-Moreno,

Cabanillas-Chirinos

et al. 2023

Sustainability

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Heavy metal contamination of water is a widespread problem in Peru and represents a potential threat to the ecosystem. Bacteria are an ecological alternative to treating these effluents. This research aims to determine the influence of temperature and pH on the lead (Pb) bioremoval in surface water using Serratia marcescens under laboratory conditions. The sample was collected from a stream located in Santiago de Chuco City (Peru). Treatments (T) were carried out by combining pH (5 and 7) and temperature (25, 30, and 35 °C). The bacterial inoculum (S. marcescens) was 3 × 108 CFU/mL, which was constant in all treatments. The lead bioremoval evaluation was performed in an airlift bioreactor and the incubation time was 24 h. The total lead concentration was determined using atomic absorption spectrophotometry. The results show that treatment 6 (temperature: 35 °C, pH: 5, and inoculum: 3 × 108 UFC/mL) showed a better result than the other treatments, with a removal value of 63.94%. Furthermore, the total lead concentration decreased from an initial concentration of 0.268 mg Pb/L to a final value of 0.0964 mg Pb/L. These results are still above the allowed water value (15 µg/L) according to Peruvian standards. On the other hand, temperature and pH influenced lead removal from surface water when S. marcescens was used after a short incubation period (24 h). Although an attempt was made to improve lead bioremoval by varying two parameters, temperature and pH, future research is still needed to investigate the effect of different inoculum concentrations, the use of microbial consortia, and a broader range of physicochemical parameters.

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Section: Discussionmentioning

confidence: 80%

An In Vitro Study of the Effects of Temperature and pH on Lead Bioremoval Using Serratia marcescens

Lecca-Caballero,

Vega-Moreno,

Cabanillas-Chirinos

et al. 2023

Sustainability

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“…Such microorganisms should be hydrocarbon degraders able to withstand the stress brought about by the toxic nature of hydrocarbons and variations in environmental conditions. Serratia marcescens can adapt to harsh environmental conditions (Adedoyin et al, 2023;Ketola & Hiltunen, 2014) and has been implicated as a hydrocarbondegrading microorganism (Agbor & Antai, 2019).…”

Section: Discussionmentioning

confidence: 99%

“…These enzymes include amylase, chitinase, lipase, and protease (Sharma & Tiwari, 2005), contributing to its ability to break down complex organic compounds. Serratia marcescens can adapt to harsh environmental conditions such as elevated salt concentrations and heavy metal contamination (Adedoyin et al, 2023;Ketola & Hiltunen, 2014). Some strains of Serratia marcescens are been explored for their potential in bio-pesticide production (Konecka et al, 2019;Fu et al, 2021;Tao et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

The potential of Serratia marcescens in Bioremediation of Crude-oil Polluted Soil

Peekate,

Ogolo

2024

UJMR

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Bioremediation, which involves the use of microorganisms, is an environmentally friendly approach in restoring crude-oil polluted environments. The use of Serratia marcescens (SM) in bioremediation of crude-oil polluted soil was investigated in this study. Soil from a farm was inoculated in nutrient broth for bacterial enrichment. The broth culture was inoculated on nutrient agar and incubated at ambient temperatures (27 – 32 °C). Bacterial isolates with red colonies were selected and identified. Identified SM was used in preparing bacterial-mineral-salts suspension. The bioremediation experiment consisted of two setups: Control (CT) and setup treated with SM (TSM). Both setups contained crude-oil polluted soil. Mineral-salt solution and the bacterial-mineral-salt suspension were added to setup CT and TSM, respectively. Total hydrocarbon concentration (THC), total heterotrophic bacteria (THB), hydrocarbon utilizing bacteria (HUB), total fungi (TF), and hydrocarbon utilizing fungi (HUF) in the setups were determined at various times. About 38.3 % and 46.5 % THC reduction were achieved in setup CT and TSM, respectively. The percentage of THB that are HUB was higher in setup TSM on day 7 (8.8 %) and day 28 (4.4 %) but higher in setup CT on day 14 (1.7 %) and day 21 (6.6 %). The percentage of TF that are HUF was higher in setup TSM on day 14 (98.0 %) and on day 28 (41.6 %) but higher in setup CT on day 21 (85.3 %). It is concluded that SM has a potential for use in bioremediation of crude-oil polluted soil

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Impact of Soluble and Exchangeable Concentrations of Elements in Surface Sediments from Recreational Areas on Culturable Bacterial Behaviors

Saygin,

Baysal,

Ekinci

2024

Analytical Letters

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Impact of metal exposure on environmentally isolated Serratia marcescens’ growth, oxidative-stress resistance, biofilm formation, and proliferation in eukaryotic co-culture models

Cited by 3 publications

References 22 publications

An In Vitro Study of the Effects of Temperature and pH on Lead Bioremoval Using Serratia marcescens

An In Vitro Study of the Effects of Temperature and pH on Lead Bioremoval Using Serratia marcescens

The potential of Serratia marcescens in Bioremediation of Crude-oil Polluted Soil

Impact of Soluble and Exchangeable Concentrations of Elements in Surface Sediments from Recreational Areas on Culturable Bacterial Behaviors

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