Toxic effects of amoxicillin on the photosystem II of Synechocystis sp. characterized by a variety of in vivo chlorophyll fluorescence tests

Pan, Xiangliang; Deng, Chunnuan; Zhang, Daoyong; Wang, Jianlong; Mu, Guijin; Ying, Chen

doi:10.1016/j.aquatox.2008.06.018

Cited by 110 publications

(41 citation statements)

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“…PSII is generally recognized as the most sensitive action site of contaminants to cyanobacteria (Pan et al 2008;Wang et al 2012;Zhang et al 2010). Compared with the control group, the quantum yields of PSII exhibited no significant changes following exposure to DMSO or 1.25 and 2.5 mg L -1 CMQ.…”

Section: Resultsmentioning

confidence: 99%

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Multiparameter-Based Bioassay of 2-(4-Chlorophenyl)-4-(4-methoxyphenyl) Quinazoline, a Newly-Synthesized Quinazoline Derivative, Toward Microcystis aeruginosa HAB5100 (Cyanobacteria)

Zhao

Liu

et al. 2015

Bull Environ Contam Toxicol

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Quinazoline derivatives have wide biological activities and therapeutic properties, implying their potential for development and application on a large scale. In the present study, 2-(4-chlorophenyl)-4-(4-methoxyphenyl) quinazoline (CMQ), was selected to examine its effect on unicellular cyanobacteria, Microcystis aeruginosa by evaluating growth, physiological and molecular responses. Growth was inhibited by CMQ, with a 96 h EC 50 of 1.93 ± 0.19 mg L -1 . The up-regulated expression of prx was shown, reflecting that oxidative stress might be a toxic factor of CMQ. At higher concentrations of CMQ, the quantum yields of Y(II) and Y(NPQ) in photosystem II decreased seriously and Y(NO) increased sharply, and psbA gene encoding for D1 protein was over-expressed. These results demonstrated that high concentrations of CMQ had different inhibitory targets associated with photosystem electron transport and with sites beyond the electron transport chain, leading to severe toxicity.

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Section: Resultsmentioning

confidence: 99%

“…Green algae, diatoms and cyanobacteria are commonly used algae (Ma et al 2004;Pan et al 2008;Peterson et al 1997).…”

mentioning

confidence: 99%

Multiparameter-Based Bioassay of 2-(4-Chlorophenyl)-4-(4-methoxyphenyl) Quinazoline, a Newly-Synthesized Quinazoline Derivative, Toward Microcystis aeruginosa HAB5100 (Cyanobacteria)

Zhao

Liu

et al. 2015

Bull Environ Contam Toxicol

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“…[23], few studies reported the toxic effect of β-lactam antibiotics and erythromycin, Ciprofloxacin and sulfamethoxazole on algae or cyanobacteria [24][25][26], the estimated EC 50 value against green algae were 1.54-32.25 mg/L. The effects included the reduction in growth rate and inhibition of Photo system II.…”

Section: Introductionmentioning

confidence: 99%

Toxicity of Single and Mixtures of Antibiotics to Cyanobacteria

Adli¹

2014

J Environ Anal Toxicol

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“…AMX is also toxic toward the algae Cyanophyta Synechococcus leopolensis at concentrations ranging from 50 ng/L to 50 mg/L [16] and inhibits the photosynthesis of Synechocystis sp. [17]. It is, therefore, necessary to remove these emerging contaminants from wastewater prior to discharge in receiving waters.…”

Section: Introductionmentioning

confidence: 99%

Removal of Pharmaceuticals from Wastewater by Intermittent Electrocoagulation

Ensano

Borea

Naddeo

et al. 2017

Water

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Abstract:The continuous release of emerging contaminants (ECs) in the aquatic environment, as a result of the inadequate removal by conventional treatment methods, has prompted research to explore viable solutions to this rising global problem. One promising alternative is the use of electrochemical processes since they represent a simple and highly efficient technology with less footprint. In this paper, the feasibility of treating ECs (i.e., pharmaceuticals) using an intermittent electrocoagulation process, a known electrochemical technology, has been investigated. Diclofenac (DCF), carbamazepine (CBZ) and amoxicillin (AMX) were chosen as being representative of highly consumed drugs that are frequently detected in our water resources and were added in synthetic municipal wastewater. The removal efficiencies of both individual and combined pharmaceuticals were determined under different experimental conditions: hydraulic retention time (HRT) (6, 19 and 38 h), initial concentration (0.01, 4 and 10 mg/L) and intermittent application (5 min ON/20 min OFF) of current density (0.5, 1.15 and 1.8 mA/cm 2 ). Results have shown that these parameters have significant effects on pharmaceutical degradation. Maximum removals (DCF = 90%, CBZ = 70% and AMX = 77%) were obtained at a current density of 0.5 mA/cm 2 , an initial concentration of 10 mg/L and HRT of 38 h.

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Toxic effects of amoxicillin on the photosystem II of Synechocystis sp. characterized by a variety of in vivo chlorophyll fluorescence tests

Cited by 110 publications

References 50 publications

Multiparameter-Based Bioassay of 2-(4-Chlorophenyl)-4-(4-methoxyphenyl) Quinazoline, a Newly-Synthesized Quinazoline Derivative, Toward Microcystis aeruginosa HAB5100 (Cyanobacteria)

Multiparameter-Based Bioassay of 2-(4-Chlorophenyl)-4-(4-methoxyphenyl) Quinazoline, a Newly-Synthesized Quinazoline Derivative, Toward Microcystis aeruginosa HAB5100 (Cyanobacteria)

Toxicity of Single and Mixtures of Antibiotics to Cyanobacteria

Removal of Pharmaceuticals from Wastewater by Intermittent Electrocoagulation

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