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This work is licensed under a Creative Commons Attribution 4.0 International License.
Single Toxicity and QSAR-Assistant Toxic Mechanisms of Pesticides (Dimethoate, Malathion, Atrazine, Prometryn and Acetochlor) to Photobacterium phosphoreum in the Sediment Lixivium
Corresponding Author(s) : Wenjin Zhao
Asian Journal of Chemistry,
Vol. 27 No. 2 (2015): Vol 27 Issue 2
Abstract
To investigate the toxicity of diverse pesticides in the lixivium of sediments, 5 kinds of typical pesticides (dimethoate, malathion, atrazine, prometryn and acetochlor were selected as target objects to explore their single toxicity and toxic mechanisms to Photobacterium phosphoreum through the quantitative structure-activity relationship (QSAR) model, respectively. The dose-response curves of pesticides were fitted through Weibull and Logit models based on the single toxicity experiments, which indicated the toxic order of the pesticides to Photobacterium phosphoreum as follows: prometryn > dimethoate > malathion > atrazine > acetochlor. To reveal the mechanism of single toxicity, the DFT-B3LYP method with the basis set 6-31G (d) was employed to calculate 29 quantum chemical parameters of the typical pesticides as theoretical descriptors, thus a QSAR model was established using multiple linear regression method. It was found that both the first-order hyperpolarizabilities byyz and bxyz have significant influence on the single toxicity of 5 pesticides and they are in proportion to the single toxicity of 5 pesticides to Photobacterium phosphoreum, where byyz plays a dominant role in controlling pesticide toxicity.
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- http://www.chinapesticide.gov.cn/doc13/13030405.html.
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References
http://www.chinapesticide.gov.cn/doc13/13030405.html.
D. Pimentel, J. Agric. Environ. Ethics, 8, 17 (1995); doi:10.1007/BF02286399.
W.F. Durham and C.H. Williams, Annu. Rev. Entomol., 17, 123 (1972); doi:10.1146/annurev.en.17.010172.001011.
M. Faust, R. Altenburger, T. Backhaus, H. Blanck, W. Boedeker, P. Gramatica, V. Hamer, M. Scholze, M. Vighi and L.H. Grimme, Aquat. Toxicol., 56, 13 (2001); doi:10.1016/S0166-445X(01)00187-4.
M. Faust, R. Altenburger, T. Backhaus, H. Blanck, W. Boedeker, P. Gramatica, V. Hamer, M. Scholze, M. Vighi and L.H. Grimme, Aquat. Toxicol., 63, 43 (2003); doi:10.1016/S0166-445X(02)00133-9.
X.W. Zhu, S.S. Liu, H.L. Ge and Y. Liu, Water Res., 43, 1731 (2009); doi:10.1016/j.watres.2009.01.004.
S.S. Liu, X.Q. Song, H.L. Liu, Y.H. Zhang and J. Zhang, Chemosphere, 75, 381 (2009); doi:10.1016/j.chemosphere.2008.12.026.
S. Xu, L. Li, Y. Tan, J. Feng, Z. Wei and L. Wang, Bull. Environ. Contam. Toxicol., 64, 316 (2000); doi:10.1007/s001280000002.
M.J. Zhu, F. Ge, R.L. Zhu, X.Y. Wang and X.Y. Zheng, Chemosphere, 80, 46 (2010); doi:10.1016/j.chemosphere.2010.03.044.
Y.L. Phyu, M.S.J. Warne and R.P. Lim, Environ. Toxicol. Chem., 27, 420 (2008); doi:10.1897/07-141R.1.
D. Nori-Shargh, F.R. Ghanizadeh, M.M. Hosseini and F. Deyhimi, J. Mol. Struct. Theochem., 808, 135 (2007); doi:10.1016/j.theochem.2007.01.001.
J.E. Lee, W. Choi and B.J. Mhin, J. Phys. Chem. A, 107, 2693 (2003); doi:10.1021/jp027133m.
X.W. Li, E. Shibata and T. Nakamura, J. Chem. Eng. Data, 48, 727 (2003); doi:10.1021/je0256582.
J. Tomasi, B. Mennucci and R. Cammi, Chem. Rev., 105, 2999 (2005); doi:10.1021/cr9904009.
X.Y. Cai, L. Jiang, Y.L. Zeng and Y. Li, Chinese J. Lumin., 34, 1667 (2013); doi:10.3788/fgxb20133412.1667.
C. Hansch, A. Leo and R.W. Taft, Chem. Rev., 91, 165 (1991); doi:10.1021/cr00002a004.
H. Gao, J.A. Katzenellenbogen, R. Garg and C. Hansch, Chem. Rev., 99, 723 (1999); doi:10.1021/cr980018g.
D.B. Wei, A.Q. Zhang, C.D. Wu, S.K. Han and L.S. Wang, Chemosphere, 44, 1421 (2001); doi:10.1016/S0045-6535(00)00538-5.
S.S. Liu, H.L. Liu, C.S. Yin and L.S. Wang, J. Chem. Inf. Comput. Sci., 43, 964 (2003); doi:10.1021/ci020377j.