Toxicity of benzophenone-3 and its biodegradation in a freshwater microalga Scenedesmus obliquus. 2020

Sang-Hun Lee, and Jiu-Qiang Xiong, and Shaoguo Ru, and Swapnil M Patil, and Mayur B Kurade, and Sanjay P Govindwar, and Sang-Eun Oh, and Byong-Hun Jeon
Department of Environmental Science, Keimyung University, 42601 Daegu, South Korea.

Environmental contamination by benzophenone-3 has gained attention because of its frequent occurrence and adverse environmental impact. Studies investigating the toxicity and removal mechanisms, along with its degradation pathway in microalgae are still rare. In this study, the ecotoxicity of benzophenone-3 on Scenedesmus obliquus was assessed through dose-response test, risk quotient evaluation, and changes of microalgal biochemical characteristics and gene expression. The calculated risk quotients of benzophenone-3 were >1, implying its high environmental risk. Expression of the ATPF0C and Tas genes encoding ATP-synthase and oxidoreductase was significantly increased in S. obliquus after exposure to benzophenone-3, while that of Lhcb1 and HydA genes was reduced. When exposed to 0.1-3 mg L-1 benzophenone-3, 23-29 % removal was achieved by S. obliquus, which was induced by abiotic removal, bioadsorption, bioaccumulation and biodegradation. Metabolic fate analyses showed that biodegradation of benzophenone-3 was induced by hydroxylation, and methylation, forming less toxic intermediates according to the toxicity assessment of the identified products. This study provides a better understanding of the toxicity and metabolic mechanisms of benzophenone-3 in microalgae, demonstrating the potential application of microalgae in the remediation of benzophenone-3 contaminated wastewater.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008745 Methylation Addition of methyl groups. In histo-chemistry methylation is used to esterify carboxyl groups and remove sulfate groups by treating tissue sections with hot methanol in the presence of hydrochloric acid. (From Stedman, 25th ed) Methylations
D010788 Photosynthesis The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide using energy obtained from light rather than from the oxidation of chemical compounds. Photosynthesis comprises two separate processes: the light reactions and the dark reactions. In higher plants; GREEN ALGAE; and CYANOBACTERIA; NADPH and ATP formed by the light reactions drive the dark reactions which result in the fixation of carbon dioxide. (from Oxford Dictionary of Biochemistry and Molecular Biology, 2001) Calvin Cycle,Calvin-Benson Cycle,Calvin-Benson-Bassham Cycle,Carbon Fixation, Photosynthetic,Reductive Pentose Phosphate Cycle,Dark Reactions of Photosynthesis,Calvin Benson Bassham Cycle,Calvin Benson Cycle,Cycle, Calvin,Cycle, Calvin-Benson,Cycle, Calvin-Benson-Bassham,Photosynthesis Dark Reaction,Photosynthesis Dark Reactions,Photosynthetic Carbon Fixation
D006900 Hydroxylation Placing of a hydroxyl group on a compound in a position where one did not exist before. (Stedman, 26th ed) Hydroxylations
D001577 Benzophenones Derivatives of benzophenone (with the structural formula phenyl-(C
D014874 Water Pollutants, Chemical Chemical compounds which pollute the water of rivers, streams, lakes, the sea, reservoirs, or other bodies of water. Chemical Water Pollutants,Landfill Leachate,Leachate, Landfill,Pollutants, Chemical Water
D015870 Gene Expression The phenotypic manifestation of a gene or genes by the processes of GENETIC TRANSCRIPTION and GENETIC TRANSLATION. Expression, Gene,Expressions, Gene,Gene Expressions
D044444 Scenedesmus A genus of GREEN ALGAE in the family Scenedesmaceae. It forms colonies of usually four or eight cylindrical cells that are widely distributed in freshwater and SOIL.
D058086 Microalgae A non-taxonomic term for unicellular microscopic algae which are found in both freshwater and marine environments. Some authors consider DIATOMS; CYANOBACTERIA; HAPTOPHYTA; and DINOFLAGELLATES as part of microalgae, even though they are not algae. Microphytes
D018570 Risk Assessment The qualitative or quantitative estimation of the likelihood of adverse effects that may result from exposure to specified health hazards or from the absence of beneficial influences. (Last, Dictionary of Epidemiology, 1988) Assessment, Risk,Benefit-Risk Assessment,Risk Analysis,Risk-Benefit Assessment,Health Risk Assessment,Risks and Benefits,Analysis, Risk,Assessment, Benefit-Risk,Assessment, Health Risk,Assessment, Risk-Benefit,Benefit Risk Assessment,Benefit-Risk Assessments,Benefits and Risks,Health Risk Assessments,Risk Analyses,Risk Assessment, Health,Risk Assessments,Risk Benefit Assessment,Risk-Benefit Assessments

Related Publications

Sang-Hun Lee, and Jiu-Qiang Xiong, and Shaoguo Ru, and Swapnil M Patil, and Mayur B Kurade, and Sanjay P Govindwar, and Sang-Eun Oh, and Byong-Hun Jeon
May 2019, Journal of hazardous materials,
Sang-Hun Lee, and Jiu-Qiang Xiong, and Shaoguo Ru, and Swapnil M Patil, and Mayur B Kurade, and Sanjay P Govindwar, and Sang-Eun Oh, and Byong-Hun Jeon
February 2024, Chemosphere,
Sang-Hun Lee, and Jiu-Qiang Xiong, and Shaoguo Ru, and Swapnil M Patil, and Mayur B Kurade, and Sanjay P Govindwar, and Sang-Eun Oh, and Byong-Hun Jeon
January 2020, Frontiers in microbiology,
Sang-Hun Lee, and Jiu-Qiang Xiong, and Shaoguo Ru, and Swapnil M Patil, and Mayur B Kurade, and Sanjay P Govindwar, and Sang-Eun Oh, and Byong-Hun Jeon
January 2013, PloS one,
Sang-Hun Lee, and Jiu-Qiang Xiong, and Shaoguo Ru, and Swapnil M Patil, and Mayur B Kurade, and Sanjay P Govindwar, and Sang-Eun Oh, and Byong-Hun Jeon
August 2009, Ecotoxicology (London, England),
Sang-Hun Lee, and Jiu-Qiang Xiong, and Shaoguo Ru, and Swapnil M Patil, and Mayur B Kurade, and Sanjay P Govindwar, and Sang-Eun Oh, and Byong-Hun Jeon
April 2019, Journal of biotechnology,
Sang-Hun Lee, and Jiu-Qiang Xiong, and Shaoguo Ru, and Swapnil M Patil, and Mayur B Kurade, and Sanjay P Govindwar, and Sang-Eun Oh, and Byong-Hun Jeon
October 2016, Ecotoxicology and environmental safety,
Sang-Hun Lee, and Jiu-Qiang Xiong, and Shaoguo Ru, and Swapnil M Patil, and Mayur B Kurade, and Sanjay P Govindwar, and Sang-Eun Oh, and Byong-Hun Jeon
March 2019, Chemosphere,
Sang-Hun Lee, and Jiu-Qiang Xiong, and Shaoguo Ru, and Swapnil M Patil, and Mayur B Kurade, and Sanjay P Govindwar, and Sang-Eun Oh, and Byong-Hun Jeon
January 2013, Ecotoxicology and environmental safety,
Sang-Hun Lee, and Jiu-Qiang Xiong, and Shaoguo Ru, and Swapnil M Patil, and Mayur B Kurade, and Sanjay P Govindwar, and Sang-Eun Oh, and Byong-Hun Jeon
April 2016, Bioresource technology,
Copied contents to your clipboard!