PMID- 21244025 OWN - NLM STAT- MEDLINE DCOM- 20110817 LR - 20161125 IS - 1520-5118 (Electronic) IS - 0021-8561 (Linking) VI - 59 IP - 7 DP - 2011 Apr 13 TI - Theoretical molecular descriptors relevant to the uptake of persistent organic pollutants from soil by zucchini. A QSAR study. PG - 2863-9 LID - 10.1021/jf1038772 [doi] AB - The uptake of persistent organic pollutants (POPs) from soil by plants allows the development of phytoremediation protocols to rehabilitate contaminated areas. The use of diverse theoretical descriptors has been reported in the literature for developing quantitative structure-activity relationship (QSAR) models for predicting the bioconcentration factors (BCFs) of POPs in different plants. In this paper an evaluation is given on the molecular properties of POPs in terms of theoretical molecular descriptors that are relevant to the uptake and accumulation of these persistent pollutants from soil by two zucchini varieties. Statistically significant and predictive linear regression models have been developed for the BCF values of 20 polychlorinated dibenzo-p-dioxins/dibenzofurans and 14 polyhalogenated biphenyls in two zucchini varieties based on retrospective data. The relevant parameters have been selected from a set of 1660 DRAGON, 150 VolSurf, and 11 quantum chemical descriptors. The two most significant regression models, containing VolSurf, DRAGON GETAWAY, and quantum chemical descriptors, displayed the following statistical parameters: (eq 3) n = 27, R(2) = 0.940, q(2) = 0.922, SE = 0.155, F = 392.1; (eq 4) n = 27, R(2) = 0.921, q(2) = 0.898, SE = 0.161, F = 140.4. Predictive capabilities of the equations have been validated by using external validation sets. The QSAR models proposed might contribute to the development of viable soil remediation strategies. FAU - Bordas, Barna AU - Bordas B AD - Plant Protection Institute, Hungarian Academy of Sciences, P.O. Box 102, H-1525 Budapest, Hungary. barna.bordas@gmail.com FAU - Belai, Ivan AU - Belai I FAU - Koomives, Tamas AU - Koomives T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110118 PL - United States TA - J Agric Food Chem JT - Journal of agricultural and food chemistry JID - 0374755 RN - 0 (Benzofurans) RN - 0 (Polychlorinated Dibenzodioxins) RN - 0 (Soil Pollutants) RN - 8U54U639VI (dibenzofuran) SB - IM MH - Benzofurans/chemistry/metabolism MH - Cucurbita/*metabolism MH - Linear Models MH - Polychlorinated Dibenzodioxins/analogs & derivatives/chemistry/metabolism MH - *Quantitative Structure-Activity Relationship MH - Soil Pollutants/*chemistry/*metabolism EDAT- 2011/01/20 06:00 MHDA- 2011/08/19 06:00 CRDT- 2011/01/20 06:00 PHST- 2011/01/20 06:00 [entrez] PHST- 2011/01/20 06:00 [pubmed] PHST- 2011/08/19 06:00 [medline] AID - 10.1021/jf1038772 [doi] PST - ppublish SO - J Agric Food Chem. 2011 Apr 13;59(7):2863-9. doi: 10.1021/jf1038772. Epub 2011 Jan 18.