Pesticides Curbing Soil Fertility: Effect of Complexation of Free Metal Ions
Name:
image 1.jpg
Size:
71.16Kb
Format:
JPEG image
Description:
Supplemental files
Name:
image 2.jpg
Size:
86.56Kb
Format:
JPEG image
Description:
Supplemental files
Name:
image 3.jpg
Size:
80.41Kb
Format:
JPEG image
Description:
Supplemental files
Name:
table 1.docx
Size:
19.96Kb
Format:
Microsoft Word 2007
Description:
Supplemental files
Name:
table 2.docx
Size:
19.96Kb
Format:
Microsoft Word 2007
Description:
Supplemental files
Name:
table 3.docx
Size:
20.57Kb
Format:
Microsoft Word 2007
Description:
Supplemental files
Name:
table 4.docx
Size:
20.49Kb
Format:
Microsoft Word 2007
Description:
Supplemental files
Name:
table 5.docx
Size:
2.275Mb
Format:
Microsoft Word 2007
Description:
Supplemental files
Type
ArticleKAUST Department
Chemical Science ProgramKAUST Catalysis Center (KCC)
Physical Science and Engineering (PSE) Division
Date
2017-07-04Permanent link to this record
http://hdl.handle.net/10754/625168
Metadata
Show full item recordAbstract
Researchers have suggested that the reason behind infertility is pernicious effect of broad spectrum pesticides on non target, beneficial microorganism of soil. Here, studying the chelating effect of selective organophosphate and carbamate pesticides with essential metal ions, at all possible combinations of three different pH (4 ± 0.05, 7 ± 0.05 and 9 ± 0.05) and three different temperatures (15 ± 0.5°C, 30 ± 0.5°C and 45 ± 0.5°C), shows very fast rate of reaction which further increases with increase of pH and temperature. Carbonyl oxygen of carbamate and phosphate oxygen of organophosphate were found to be common ligating sites among all the complexes. Formed metal complexes were found to be highly stable and water insoluble on interaction with essential metal ions in solvent medium as well as over silica. Density functional theory (DFT) calculations not only reinforced the experimental observations, but, after a wide computational conformational analysis, unraveled the nature of the high stable undesired species that consist of pesticides complexed by metal ions from the soil. All in all, apart from the direct toxicity of pesticides, the indirect effect by means of complexation of free metal ions impoverishes the soil.Citation
Kaur S, Kumar V, Chawla M, Cavallo L, Poater A, et al. (2017) Pesticides Curbing Soil Fertility: Effect of Complexation of Free Metal Ions. Frontiers in Chemistry 5. Available: http://dx.doi.org/10.3389/fchem.2017.00043.Sponsors
This work is supported (financially) by UGC, India through UGC- start-up grant provided to NU (No.F. 30-70/2014) and by Rajiv Gandhi National Fellowship scheme awarded to VK (RGNF-SCHIM-1223). Authors are thankful to Gautami Ltd. India, for providing active component of technical grade pesticides. Authors also like to acknowledge SIC, Dr. H.S. Gour University, SAIF, Panjab University Chandigarh, SAIF IIT Madras and SAIF Kochi Kerala for instrumental support. AP thanks the Spanish MINECO for a project CTQ2014-59832-JIN. MC and LC thank King Abdullah University of Science and Technology for support.Publisher
Frontiers Media SAJournal
Frontiers in ChemistryPubMed ID
28725644Additional Links
http://journal.frontiersin.org/article/10.3389/fchem.2017.00043/fullae974a485f413a2113503eed53cd6c53
10.3389/fchem.2017.00043
Scopus Count
Except where otherwise noted, this item's license is described as This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Related articles
- Complexation of DTPA and EDTA with Cd(2+): stability constants and thermodynamic parameters at the soil-water interface.
- Authors: Karak T, Paul RK, Das DK, Boruah RK
- Issue date: 2016 Dec
- Abiotic hydrolysis of pesticides in the aquatic environment.
- Authors: Katagi T
- Issue date: 2002
- Metal ion interactions with methyl gallate characterized by UV spectroscopic and computational methods.
- Authors: Zhang L, Liu Y, Hu X, Wang Y, Xu M
- Issue date: 2019 Sep 30
- DFT study of the interaction between DOTA chelator and competitive alkali metal ions.
- Authors: Frimpong E, Skelton AA, Honarparvar B
- Issue date: 2017 Sep
- DFT investigation on the selective complexation of Fe(3+) and Al(3+) with hydroxypyridinones used for treatment of the aluminium and iron overload diseases.
- Authors: Kaviani S, Izadyar M, Housaindokht MR
- Issue date: 2018 Mar