Combined effects of 17β-estradiol and copper on growth, biochemical characteristics and pollutant removals of freshwater microalgae Scenedesmus dimorphus

Li, Shuangxi; Chu, Ruoyu; Hu, Dan; Yin, Zhaoyi; Mo, Fan; Hu, Tianyi; Liu, Chenchen; Zhu, Linna

doi:10.1016/j.scitotenv.2020.138597

Cited by 43 publications

(11 citation statements)

References 46 publications

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“…The results obtained in the current study are promising, given that 100% efficiency was obtained in a period that is 11 times less than that reported by Li et al [ 17 ]. Biodegradation and the effects of 2 mg of E2 L −1 were evaluated by Li et al [ 26 ] using S. dimorphus . They reported that the presence of E2 affected the growth and photosynthetic activity of S. dimorphus , attributing it to a 46.1% decrease in the E2 concentration.…”

Section: Resultsmentioning

confidence: 99%

Biotransformation of 17β-Estradiol through a Denitrifying Sludge

Camacho-López

Romo-Gómez

Otazo-Sánchez

et al. 2022

IJERPH

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17β-estradiol (E2) is the natural estrogen with the most significant potential for endocrine disruption in the biota of aquatic ecosystems at trace concentrations. It is, therefore, essential to study treatments for water polluted with E2 that would guarantee its complete elimination and mineralization. Denitrification is a biological process shown to have the capacity to completely biodegrade drugs, such as ampicillin. This work is aimed to evaluate the biotransformation of 17β-estradiol by employing a denitrifying sludge. The assays performed were: (I) abiotic with 3.5 mg E2-C L−1 and (II) denitrifying with 10 mg CH3COO−-C L−1 as the reference, 10 mg E2-C L−1 as the sole electron donor, and a mixture of (mg L−1) 10 E2-C with 10 CH3COO−-C at C N−1 of 1.1. The E2-C and NO3−-N consumption efficiencies were greater than 99%, and HCO3−-C and N2 production yields were close to 1 in all assays. The denitrifying sludge could biodegrade up to 10 mg E2-C L−1 as the sole electron donor and when mixed with 10 mg CH3COO−-C L−1. No intermediate metabolites were generated from the process.

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Section: Resultsmentioning

confidence: 99%

Biotransformation of 17β-Estradiol through a Denitrifying Sludge

Camacho-López

Romo-Gómez

Otazo-Sánchez

et al. 2022

IJERPH

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“…The contents of chlorophyll a and b as well as carotenoid were analyzed using the methods of a previous study ( Li et al., 2020a ). Specifically, 8 mL algal culture was obtained and centrifuged at 4°C, 8000 rpm for 10 min.…”

Section: Methodsmentioning

confidence: 99%

Physiological and transcriptomic responses of Chlorella sorokiniana to ciprofloxacin reveal molecular mechanisms for antibiotic removal

et al. 2022

iScience

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“…2B). Carbohydrates and lipids also play important role in carbon partitioning, osmotic homeostasis, and metabolism of algal cells (Li et al 2020). In the present study, carbohydrate content increased from 139 µg mg -1 (DM) (C and LL) to 182 µg mg -1 (DM) in PYR and LL while it was not affected by PYR and HL as compared to C and HL in S. acutus (Fig.…”

Section: Biomolecules Of Algal Cellsmentioning

confidence: 99%

Light intensity affects tolerance of pyrene in Chlorella vulgaris and Scenedesmus acutus

Tomar¹,

ATRE²,

Sharma³

et al. 2023

Photosynt.

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The impact of light intensity on the toxicity of pyrene, a 4-ring polycyclic aromatic hydrocarbon (PAH), was studied in Chlorella vulgaris and Scenedesmus acutus. Both species were cultured under low light, LL [50-60 µmol(photon) m -2 s -1 ], and high light, HL [100-110 µmol(photon) m -2 s -1 ] conditions to study the effects of pyrene (PYR) toxicity on growth parameters, the content of biomolecules, chlorophyll content, and photosynthetic efficiency. In the presence of PYR, S. acutus could grow well in LL and HL intensity. On the other hand, C. vulgaris showed a drastic decrease in growth and photosynthesis during HL conditions due to PYR toxicity. Regulation of nonphotochemical and photochemical quenching was responsible for the survival of S. acutus under PYR toxicity in LL and HL conditions. Thus, S. acutus seems to be a more promising candidate for pyrene degradation under varying light conditions. Highlights• Chlorella vulgaris is more sensitive to PYR in high light than in low light intensity • Scenedesmus acutus regulates Y(NPQ) and Y(NO) to protect PSII from pyrene toxicity • Scenedesmus acutus is more suitable for the removal of pyrene under varying light conditions Materials and methodsAlgal species and culture conditions: Freshwater microalgal species C. vulgaris was procured from Phycospectrum

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Combined effects of 17β-estradiol and copper on growth, biochemical characteristics and pollutant removals of freshwater microalgae Scenedesmus dimorphus

Cited by 43 publications

References 46 publications

Biotransformation of 17β-Estradiol through a Denitrifying Sludge

Biotransformation of 17β-Estradiol through a Denitrifying Sludge

Physiological and transcriptomic responses of Chlorella sorokiniana to ciprofloxacin reveal molecular mechanisms for antibiotic removal

Light intensity affects tolerance of pyrene in Chlorella vulgaris and Scenedesmus acutus

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