Interactions between the antimicrobial agent triclosan and the bloom-forming cyanobacteria Microcystis aeruginosa

Huang, Xiaolong; Tu, Yenan; Cheng, Song; Li, Tiancui; Lin, Juan; Wu, Yonghong; Liu, Jiantong; Wu, Chenxi

doi:10.1016/j.aquatox.2016.01.002

Cited by 51 publications

(14 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Oxidation was also found to be important for the organophosphorus pesticide fenamiphos 24 , whereas sulfate and glucose conjugation as well as O-methylation products were observed in the case of tetrabromobisphenol A 25 . O-methylation of the antimicrobial triclosan was also observed 26 .…”

Section: Introductionmentioning

confidence: 91%

Exploring micropollutant biotransformation in three freshwater phytoplankton species

Stravs

Pomati

Hollender

2017

Environ. Sci.: Processes Impacts

View full text Add to dashboard Cite

Phytoplankton constitute an important component of surface water ecosystems; however little is known about their contribution to biotransformation of organic micropollutants. To elucidate biotransformation processes, batch experiments with two cyanobacterial species (Microcystis aeruginosa and Synechococcus sp.) and one green algal species (Chlamydomonas reinhardtii) were conducted. Twenty-four micropollutants were studied, including 15 fungicides and 9 pharmaceuticals. Online solid phase extraction (SPE) coupled with liquid chromatography (LC)-high resolution tandem mass spectrometry (HRMS/MS) was used together with suspect and nontarget screening to identify transformation products (TPs). 14 TPs were identified for 9 micropollutants, formed by cytochrome P450-mediated oxidation, conjugation and methylation reactions. The observed transformation pathways included reactions likely mediated by promiscuous enzymes, such as glutamate conjugation to mefenamic acid and pterin conjugation of sulfamethoxazole. For 15 compounds, including all azole fungicides tested, no TPs were identified. Environmentally relevant concentrations of chemical stressors had no influence on the transformation types and rates.

show abstract

Section: Introductionmentioning

confidence: 91%

Exploring micropollutant biotransformation in three freshwater phytoplankton species

Stravs

Pomati

Hollender

2017

Environ. Sci.: Processes Impacts

View full text Add to dashboard Cite

show abstract

“…Chlorophyll from dead algal cells has been found to be able to catalyze the photodegradation of benzo[a]pyrene by acting as a photosensitizer (Luo et al 2015). Extracellular secretions from M. aeruginosa have also been found to be able to accelerate the photodegradation of triclosan (Huang et al 2016). As photodegradation depends on light penetration, the extent of photodegradation can be affected by the configuration of algae-based treatment systems.…”

Section: Photodegradationmentioning

confidence: 99%

“…in 7 days and its removal was attributed to algae mediated uptake and photolysis (Bai and Acharya 2016). However, removal of triclosan by M. aeruginosa was mainly attributed to biotransformation with methylation as a major biotransformation pathway and 51% of the removed triclosan was transformed into methyl-triclosan (Huang et al 2016). Removal of carbamazepine by algae is relatively slow with only 30-37% of the compound removed in 10 days, and two metabolites (10,11-dihydro-10,11-expoxycarbamazepine and n-hydroxycarbamazepine) were identified likely due to the presence of cytochrome P450 in algae (Xiong et al 2016).…”

Section: Antiepilepticsmentioning

confidence: 99%

Removal of pharmaceuticals and personal care products from wastewater using algae-based technologies: a review

Wang

Liu

et al. 2017

Rev Environ Sci Biotechnol

Self Cite

148

View full text Add to dashboard Cite

Pharmaceuticals and personal care products (PPCPs) consist of a variety of compounds extensively used for the treatment of human and animal diseases and for health or cosmetic reasons. PPCPs are considered as emerging environmental contaminants due to their ubiquitous presence in the environment and high environmental risks. In wastewater treatment plants using conventional activated sludge processes, many PPCPs cannot be efficiently removed. Therefore, there is an increasing need for more effective and cost-efficiency ways of removing PPCPs while treating wastewater. Algae-based technologies have recently attracted growing attentions for their potential application in wastewater treatment and hazardous contaminant removal, which are advantages in reducing operation cost while generating valuable products and sequestrating greenhouse gases at the same time. This work reviews the up-to date researches to reveal potential toxic effects of PPCPs on algae and algae-bacteria consortia, identify mechanisms involved in PPCP removal, and assess the fate of PPCPs in algae-based treatment systems. Current researches suggest that algae and algae-bacteria consortia have great potentials in PPCP removal but more works are required before algae-based technologies can be implemented in large scales. Knowledge gaps are identified and further research focuses are proposed in this review.

show abstract

“…Higher concentrations of both aromatic hydrocarbons were lethal for all tested species (Kumar et al 2009). Huang et al (2016) studied the interactions between diaromatic triclosan (TCS) and the cyanobacteria Microcystis aeruginosa . The results showed that even 1 μg/L of this chemical inhibited growth and that a higher dose (10 μg/L) induced deactivation of photosynthesis.…”

Section: The Response Of Cyanobacteria To the Presence Of Aromatic Comentioning

confidence: 99%

Metabolic relation of cyanobacteria to aromatic compounds

Żyszka-Haberecht

Niemczyk

Lipok

2018

Appl Microbiol Biotechnol

View full text Add to dashboard Cite

Cyanobacteria, also known as blue-green (micro)algae, are able to sustain many types of chemical stress because of metabolic adaptations that allow them to survive and successfully compete in a variety of ecosystems, including polluted ones. As photoautotrophic bacteria, these microorganisms synthesize aromatic amino acids, which are precursors for a large variety of substances that contain aromatic ring(s) and that are naturally formed in the cells of these organisms. Hence, the transformation of aromatic secondary metabolites by cyanobacteria is the result of the possession of a suitable “enzymatic apparatus” to carry out the biosynthesis of these compounds according to cellular requirements. Another crucial aspect that should be evaluated using varied criteria is the response of cyanobacteria to the presence of extracellular aromatic compounds. Some aspects of the relationship between aromatic compounds and cyanobacteria such as the biosynthesis of aromatic compounds, the influence of aromatic compounds on these organisms and the fate of aromatic substances inside microalgal cells are presented in this paper. The search for this information has suggested that there is a lack of knowledge about the regulation of the biosynthesis of aromatic substances and about the transport of these compounds into cyanobacterial cells. These aspects are of pivotal importance with regard to the biotransformation of aromatic compounds and understanding them may be the goals of future research.

show abstract

Interactions between the antimicrobial agent triclosan and the bloom-forming cyanobacteria Microcystis aeruginosa

Cited by 51 publications

References 37 publications

Exploring micropollutant biotransformation in three freshwater phytoplankton species

Exploring micropollutant biotransformation in three freshwater phytoplankton species

Removal of pharmaceuticals and personal care products from wastewater using algae-based technologies: a review

Metabolic relation of cyanobacteria to aromatic compounds

Contact Info

Product

Resources

About