Effect of PHRs and PCPs on Microalgal Growth, Metabolism and Microalgae-Based Bioremediation Processes: A Review

Miazek, Krystian; Brożek-Płuska, Beata

doi:10.3390/ijms20102492

Cited by 55 publications

(35 citation statements)

References 292 publications

(718 reference statements)

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“…This is quite understandable if we consider a species-specific differentiation in antibiotic tolerance, since our strains are much closely related to C. sorokiniana than C. vulgaris . Ciprofloxacin can also cause ≥30% inhibition in Chlorella pyrenoidosa at 100–150 mg l –1 (or μg ml –1 ); moreover, at concentrations comprised within 55–111 mg l –1 (or μg ml –1 ) it can inhibit the 50% growth of Chlamydomonas mexicana ( Miazek and Brozek-Pluska, 2019 ). Anyway, in these last examples, concentrations are much higher than those tested in our experiment (and in any case, higher than the ones commonly detected in environmental freshwater), and the investigated species are not related to our strains.…”

Section: Discussionmentioning

confidence: 99%

“…Benzylpenicillin (penicillin G) is an antibiotic widely used for the treatment of the common bacterial infections including pneumonia, strep throat, syphilis, necrotizing enterocolitis, diphtheria, gas gangrene, leptospirosis, cellulitis, and tetanus ( Stuart et al, 2009 ). It contains a 6-[(2-phenylacetyl)amino] moiety in its structure ( Miazek and Brozek-Pluska, 2019 ), and its inhibitory effect against Microcystis aeruginosa growth has been demonstrated at 0.006 mg l –1 ( Halling-Sorensen, 2000 ). This result is not in agreement with our observations, demonstrating that our strains, even if belonging to different genera/species, can tolerate much higher concentrations of this antibiotic.…”

Section: Discussionmentioning

confidence: 99%

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Isolation of Four Microalgal Strains From the Lake Massaciuccoli: Screening of Common Pollutants Tolerance Pattern and Perspectives for Their Use in Biotechnological Applications

et al. 2020

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Aquatic ecosystems represent one of the largest reservoirs of phytoplankton accounting for most of the primary production of the Earth. The Lake Massaciuccoli located in Tuscany (Italy) is one of the largest swamps that in ancient times entirely covered the Versilia coastal plain. Despite its peculiar features, especially the eutrophic characteristics, its native microalgal consortia have never been explored up to now. In this work, we isolated and described four autochthonous microalgal strains from different sites in the lake (FB, Idr, CL_Sc, and CL_Ch); the four microalgal strains were identified within the Chlorella sorokiniana clade. We exposed them to ten of the most common or emerging environmental contaminants in order to describe their preliminary response to the tested substances: five metals (As, Fe, Ni, Cu, and Zn), two herbicides (Metolachlor and Sethoxydim), two antibiotics (Ciprofloxacin and Benzylpenicillin) and a non-steroidal anti-inflammatory drug (Ibuprofen). Physiological response of the strains highlighted intraspecific differences; strain CL_Sc was the most tolerant in presence of metals while strain Idr was the most sensitive. All strains were sensitive to sethoxydim and tolerant to metolachlor at all the tested concentrations. Strains FB and Idr were the most sensitive in presence of Ibuprofen while strain CL_Ch was the most sensitive to the highest Benzylpenicillin concentration. Resistance pattern of strain Idr somehow reflects both the phylogenetic and the geographic “isolation” from all other three strains. Finally, optical microscope observation confirmed some differences also in the microalgae morphological aspect. Overall, all the strains showed interesting responses in presence of high concentrations of the tested substances, representing putative interesting candidates for water remediation in wastewater treatment plants.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Isolation of Four Microalgal Strains From the Lake Massaciuccoli: Screening of Common Pollutants Tolerance Pattern and Perspectives for Their Use in Biotechnological Applications

et al. 2020

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“…Organic microcontaminants in aquatic environments can cause toxic effects on microorganisms, such as microalgae [ 24 ]. Therefore, most researchers [ 25 , 26 , 27 ] have attempted to evaluate the individual effects of organic microcontaminants on microalgae.…”

Section: Introductionmentioning

confidence: 99%

Removal of Pharmaceutical Micropollutants with Integrated Biochar and Marine Microalgae

et al. 2020

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Using microalgae to remove pharmaceuticals and personal care products (PPCPs) micropollutants (MPs) have attracted considerable interest. However, high concentrations of persistent PPCPs can reduce the performance of microalgae in remediating PPCPs. Three persistent PPCPs, namely, carbamazepine (CBZ), sulfamethazine (SMT) and tramadol (TRA), were treated with a combination of Chaetoceros muelleri and biochar in a photobioreactor during this study. Two reactors were run. The first reactor comprised Chaetoceros muelleri, as the control, and the second reactor comprised Chaetoceros muelleri and biochar. The second reactor showed a better performance in removing PPCPs. Through the response surface methodology, 68.9% (0.330 mg L−1) of CBZ, 64.8% (0.311 mg L−1) of SMT and 69.3% (0.332 mg L−1) of TRA were removed at the initial concentrations of MPs (0.48 mg L−1) and contact time of 8.1 days. An artificial neural network was used in optimising elimination efficiency for each MP. The rational mean squared errors and high R2 values showed that the removal of PPCPs was optimised. Moreover, the effects of PPCPs concentration (0–100 mg L−1) on Chaetoceros muelleri were studied. Low PPCP concentrations (<40 mg L−1) increased the amounts of chlorophyll and proteins in the microalgae. However, cell viability, chlorophyll and protein contents dramatically decreased with increasing PPCPs concentrations (>40 mg L−1).

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“…Several studies have already been carried out to evaluate the toxicities of PhACs to microalgae (Miazek & Brozek‐Pluska, 2019). In general, the results suggested that PhACs at certain levels (ng/L or µg/L) did not exhibit acute toxicity to microalgae, but information concerning their chronic effects is still limited (Miazek & Brozek‐Pluska, 2019; W. Zhang et al, 2012). Most of the reported studies considered short exposure times, such as 24, 72, or 96 hr (Yang et al, 2008; Zounková et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have already been carried out to evaluate the toxicities of PhACs to microalgae (Miazek & Brozek-Pluska, 2019). In general, the results suggested that PhACs at certain levels (ng/L or µg/L) did not exhibit acute toxicity to microalgae, but information T A B L E 1 Structural formulae of the PhACs studied and some of their physicochemical characteristics concerning their chronic effects is still limited (Miazek & Brozek-Pluska, 2019;W. Zhang et al, 2012).…”

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confidence: 99%

Caffeine reduces the toxicity of albendazole and carbamazepine to the microalgae Raphidocelis subcapitata (Sphaeropleales, Chlorophyta)

et al. 2020

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Pharmaceutically active compounds (PhACs) are emerging contaminants that have been widely detected in water bodies in the last decades, with ecological effects toward aquatic biota that have not been fully elucidated. Most studies concerning their toxicity to microalgae have only considered short-term individual PhAC exposure, rather than combined exposure to several compounds for longer time periods. In this study, we investigated the effects of albendazole (ABZ) (anthelmintic) and carbamazepine (antiepileptic), alone and in combination with caffeine, on the growth and production of chlorophyll-a of the microalgae Raphidocelis subcapitata, during 16 days of exposure. ABZ alone had a more significant effect than carbamazepine alone on the growth rate and maximum cell density of the microalgae (p < .05; analysis of variance). These results were probably related to the effect of ABZ in inhibiting enzyme complexes and cell membrane proteins related to adenosine triphosphate synthesis, which is important for cell growth. The presence of caffeine lowered the toxicities of ABZ and carbamazepine to the microalgae, probably due to its antioxidant properties, positively affecting chlorophyll-a production, growth rate, and maximum cell density. Thus, caffeine had an antagonistic interaction with the studied PhACs. The results reinforce the importance of ecotoxicological assays that compare individual and combined PhAC exposure conditions. Our findings highlighted that caffeine can be a relevant factor influencing such assays, considering its widespread occurrence in impacted water bodies.

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Effect of PHRs and PCPs on Microalgal Growth, Metabolism and Microalgae-Based Bioremediation Processes: A Review

Cited by 55 publications

References 292 publications

Isolation of Four Microalgal Strains From the Lake Massaciuccoli: Screening of Common Pollutants Tolerance Pattern and Perspectives for Their Use in Biotechnological Applications

Isolation of Four Microalgal Strains From the Lake Massaciuccoli: Screening of Common Pollutants Tolerance Pattern and Perspectives for Their Use in Biotechnological Applications

Removal of Pharmaceutical Micropollutants with Integrated Biochar and Marine Microalgae

Caffeine reduces the toxicity of albendazole and carbamazepine to the microalgae Raphidocelis subcapitata (Sphaeropleales, Chlorophyta)

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