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Study on acute toxicity and structure-activity relationship of Daphnia magna exposed to naphthoquinones. 2011

Wenhua Song, and Jing Guo, and Feng Ding, and Weixuan Hu, and Zhen Li, and Minling Gao
School of Environmental and Chemical Engineering, Tianjin Polytechnic University, No. 63 Chenglin Road, Hedong District, Tianjin 300160, China. songwenhua9316@sina.com

The acute toxicities of the six naphthoquinone compounds on Daphnia magna (D. magna) at 48 h were classified as harmful, toxic, and very toxic. The results indicated that logP played an important part in the toxicity of compounds to organism. And 1-carbonyl or the other hydrophobic substituents of the naphthoquinone compounds are likely to mediate the binding of the compound to the target via hydrogen bonding and hydrophobic interactions. Our results provided a foundation for further investigation using 3D-QSAR and HQSAR to evaluate the aquatic ecological risk and the mechanism of toxicity of naphthoquinones.

UI MeSH Term Description Entries
D009285 Naphthoquinones Naphthalene rings which contain two ketone moieties in any position. They can be substituted in any position except at the ketone groups. Naphthalenediones,Naphthazarins,Naphthoquinone
D003621 Daphnia A diverse genus of minute freshwater CRUSTACEA, of the suborder CLADOCERA. They are a major food source for both young and adult freshwater fish. Daphnias
D006860 Hydrogen Bonding A low-energy attractive force between hydrogen and another element. It plays a major role in determining the properties of water, proteins, and other compounds. Hydrogen Bonds,Bond, Hydrogen,Hydrogen Bond
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
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
D057927 Hydrophobic and Hydrophilic Interactions The thermodynamic interaction between a substance and WATER. Hydrophilic Interactions,Hydrophilic and Hydrophobic Interactions,Hydrophilicity,Hydrophobic Interactions,Hydrophobicity,Hydrophilic Interaction,Hydrophilicities,Hydrophobic Interaction,Hydrophobicities,Interaction, Hydrophilic,Interaction, Hydrophobic,Interactions, Hydrophilic,Interactions, Hydrophobic
D020003 1-Octanol A colorless, slightly viscous liquid used as a defoaming or wetting agent. It is also used as a solvent for protective coatings, waxes, and oils, and as a raw material for plasticizers. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed) n-Octanol,n-Octyl Alcohol,1 Octanol,Alcohol, n-Octyl,n Octanol,n Octyl Alcohol
D021281 Quantitative Structure-Activity Relationship A quantitative prediction of the biological, ecotoxicological or pharmaceutical activity of a molecule. It is based upon structure and activity information gathered from a series of similar compounds. Structure Activity Relationship, Quantitative,3D-QSAR,QSAR,QSPR Modeling,Quantitative Structure Property Relationship,3D QSAR,3D-QSARs,Modeling, QSPR,Quantitative Structure Activity Relationship,Quantitative Structure-Activity Relationships,Relationship, Quantitative Structure-Activity,Relationships, Quantitative Structure-Activity,Structure-Activity Relationship, Quantitative,Structure-Activity Relationships, Quantitative

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