Pesticides Curbing Soil Fertility: Effect of Complexation of Free Metal Ions

Handle URI:
http://hdl.handle.net/10754/625168
Title:
Pesticides Curbing Soil Fertility: Effect of Complexation of Free Metal Ions
Authors:
Kaur, Sukhmanpreet; Kumar, Vijay; Chawla, Mohit ( 0000-0002-3332-3055 ) ; Cavallo, Luigi ( 0000-0002-1398-338X ) ; Poater, Albert; Upadhyay, Niraj
Abstract:
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.
KAUST Department:
KAUST Catalysis Center (KCC); Physical Sciences and Engineering (PSE) Division
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.
Publisher:
Frontiers Media SA
Journal:
Frontiers in Chemistry
Issue Date:
4-Jul-2017
DOI:
10.3389/fchem.2017.00043
PubMed ID:
28725644
Type:
Article
ISSN:
2296-2646
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.
Additional Links:
http://journal.frontiersin.org/article/10.3389/fchem.2017.00043/full
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorKaur, Sukhmanpreeten
dc.contributor.authorKumar, Vijayen
dc.contributor.authorChawla, Mohiten
dc.contributor.authorCavallo, Luigien
dc.contributor.authorPoater, Alberten
dc.contributor.authorUpadhyay, Nirajen
dc.date.accessioned2017-07-06T09:43:06Z-
dc.date.available2017-07-06T09:43:06Z-
dc.date.issued2017-07-04en
dc.identifier.citationKaur 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.en
dc.identifier.issn2296-2646en
dc.identifier.pmid28725644-
dc.identifier.doi10.3389/fchem.2017.00043en
dc.identifier.urihttp://hdl.handle.net/10754/625168-
dc.description.abstractResearchers 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.en
dc.description.sponsorshipThis 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.en
dc.publisherFrontiers Media SAen
dc.relation.urlhttp://journal.frontiersin.org/article/10.3389/fchem.2017.00043/fullen
dc.rightsThis 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.en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titlePesticides Curbing Soil Fertility: Effect of Complexation of Free Metal Ionsen
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalFrontiers in Chemistryen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Chemistry, Lovely Professional University, Jalandhar, Indiaen
dc.contributor.institutionRegional Ayurveda Research Institute for Drug Development, Gwalior, Indiaen
dc.contributor.institutionDepartament de Química, Facultat de Ciències, Institut de Química Computacional i Catàlisi, Universitat de Girona, Girona, Spainen
dc.contributor.institutionDepartment of Chemistry, Dr. Harisingh Gour Vishwavidyalaya, Sagar, Indiaen
kaust.authorChawla, Mohiten
kaust.authorCavallo, Luigien
kaust.authorPoater, Alberten
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