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Kang D, Lee H, Bae H, Jeon J. Comparative insight of pesticide transformations between river and wetland systems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 879:163172. [PMID: 37003314 DOI: 10.1016/j.scitotenv.2023.163172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 03/18/2023] [Accepted: 03/26/2023] [Indexed: 05/17/2023]
Abstract
The widespread use of pesticides threatens the environment and ecosystems. Despite the positive effects of plant protection products, pesticides also have unexpected negative effects on nontarget organisms. The microbial biodegradation of pesticides is one of the major pathways for reducing their risks at aquatic ecosystems. The objective of this study was to compare the biodegradability of pesticides in simulated wetland and river systems. Parallel experiments were conducted with 17 pesticides based on the OECD 309 guidelines. A comprehensive analytical method, such as target screening combined with suspect and non-target screening, was performed to evaluate the biodegradation via identification of transformation products (TPs) using LC-HRMS. As evidence of biodegradation, we identified 97 TPs for 15 pesticides. Metolachlor and dimethenamid had 23 and 16 TPs, respectively, including Phase II glutathione conjugates. The analysis of 16S rRNA sequences for microbials characterized operational taxonomic units. Rheinheimera and Flavobacterium, which have the potential for glutathione S-transferase, were dominant in wetland systems. Estimation of toxicity, biodegradability, and hydrophobicity using QSAR prediction indicated lower environmental risks of detected TPs. We conclude that the wetland system is more favorable for pesticide degradation and risk mitigation mainly attributed to the abundance and variety of the microbial communities.
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Affiliation(s)
- Daeho Kang
- Department of Environmental Engineering, Changwon National University, Changwon, Gyeongsangnamdo 51140, Republic of Korea
| | - Hyebin Lee
- Graduate School of Carbon Neutrality, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of Korea
| | - Hyokwan Bae
- Graduate School of Carbon Neutrality, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of Korea; Department of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of Korea
| | - Junho Jeon
- Department of Environmental Engineering, Changwon National University, Changwon, Gyeongsangnamdo 51140, Republic of Korea; School of Smart and Green Engineering, Changwon National University, Changwon, Gyeongsangnamdo 51140, Republic of Korea.
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2
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Deng P, Mou L, Ou G, Luo X, Hu D, Zhang Y. Degradation Dynamics and Residue Analysis of Four Propiconazole Stereoisomers in "Fengtang" Plum during Storage by LC-MS/MS. Foods 2023; 12:foods12112200. [PMID: 37297445 DOI: 10.3390/foods12112200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 05/19/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
Herein, an accurate and sensitive method was developed for detecting four stereoisomers of propiconazole in "Fengtang" plum by LC-MS/MS. The mean recovery of four propiconazole stereoisomers ranged from 79.42 to 104.10% at three adding levels with reasonable RSD of 1.54-11.68%, and the LOD and LOQ of the four stereoisomers was 0.0005 mg/kg and 0.004 mg/kg, respectively. In addition, the residue and selective degradation of propiconazole stereoisomers in plums were investigated by storage at 20 °C and 4 °C. The half-lives of propiconazole stereoisomeric during storage were 9.49-15.40 d at 20 °C, and 21.00-28.88 d at 4 °C. The degradation of (2R,4R)-propiconazole and (2R,4S)-propiconazole in stored plums was slightly slower than that of the corresponding enantiomers (2S,4S)-propiconazole and (2S,4R)-propiconazole. The total residues of propiconazole were 0.026-0.487 mg/kg in the plum storage period, and the water washing could remove 49.35% to 54.65% of the propiconazole residue in plum. The hardness of plums treated with propiconazole was generally higher than that of control in the middle and late stages of storage. The effects of propiconazole on the total soluble solid content of plums were different at 20 °C and 4 °C. This study provides a scientific reference for the food safety evaluation of the "Fengtang" plum after the application of propiconazole during the storage period.
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Affiliation(s)
- Pengyu Deng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals, Guizhou University, Guiyang 550025, China
| | - Lianhong Mou
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals, Guizhou University, Guiyang 550025, China
| | - Guipeng Ou
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals, Guizhou University, Guiyang 550025, China
| | - Xin Luo
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals, Guizhou University, Guiyang 550025, China
| | - Deyu Hu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals, Guizhou University, Guiyang 550025, China
| | - Yuping Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals, Guizhou University, Guiyang 550025, China
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3
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Hong AJ, Lee J, Cha Y, Zoh KD. Propiconazole degradation and its toxicity removal during UV/H 2O 2 and UV photolysis processes. CHEMOSPHERE 2022; 302:134876. [PMID: 35551935 DOI: 10.1016/j.chemosphere.2022.134876] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/30/2022] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
Propiconazole (PRO) is a triazole fungicide that is frequently detected in the water. In this study, we investigated the kinetics and degradation mechanism of PRO during the UV photolysis and UV/H2O2 processes. PRO was removed by the pseudo-first-order kinetics in both processes. The removal of PRO was enhanced by increasing H2O2 concentration in the UV/H2O2 process. The highest removal under neutral conditions, and lower removal of PRO were observed in acidic and alkaline pHs in the UV/H2O2 process. The presence of natural water ingredients such as Cl-, NO3-, humic acid acted as radical scavengers, but HCO3- ion acted as both radical promoter and scavenger in the UV/H2O2 process. The transformation products (TPs) of PRO during both processes were identified using LC-QTOF/MS. Four TPs ([M+H]+ = 238, 256, 306, and 324) were identified during UV photolysis, and six TPs ([M+H]+ = 238, 256, 306, 324, 356, and 358) were identified in the UV/H2O2 process. Among the identified TPs, TP with [M+H]+ values of 356 and 358 were newly identified in the UV/H2O2 process. In addition, ionic byproducts, such as Cl-, NO3-, formate (HCOO-), and acetate (CH3COO-), were newly identified, indicating that significant mineralization was achieved in the UV/H2O2 process. Based on the identified TPs and ionic byproducts, the degradation mechanisms of PRO during two processes were proposed. The major reactions in both processes were ring cleavage and cyclization, and hydroxylation by OH radicals. The Microtox test with Vibrio fischeri showed that, while the toxicity of the reaction solution increased first, then gradually decreased during UV photolysis, the UV/H2O2 process initially increased toxicity at 10 min due to the production of TPs, but toxicity was completely removed as the reaction progressed. The results obtained in this study imply that the UV/H2O2 process is an effective treatment for eliminating PRO, its TPs, and the resulting toxicity in water.
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Affiliation(s)
- Ae-Jung Hong
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, 08826, South Korea
| | - Jaewon Lee
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, 08826, South Korea
| | - Youngho Cha
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, 08826, South Korea
| | - Kyung-Duk Zoh
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, 08826, South Korea.
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Henriques MB, Rezende KFO, Castilho-Barros L, Barbieri E. Sublethal effects of propiconazole on the metabolism of lambari Deuterodon iguape (Eigenmann 1907), a native species from Brazil. FISH PHYSIOLOGY AND BIOCHEMISTRY 2021; 47:1165-1177. [PMID: 34142328 DOI: 10.1007/s10695-021-00968-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 05/14/2021] [Indexed: 06/12/2023]
Abstract
The objective of this study was to analyze the sublethal effects of propiconazole on Deuterodon iguape, a native fish common in Brazil, which has potential for aquaculture and use as a bioindicator. The hypothesis was to test whether D. iguape has a metabolism similar to Danio rerio so that its use in bioassays may be validated. Lethal concentration (LC50) and metabolic rates were studied in fish exposed to propiconazole. Specific oxygen consumption and ammonia excretion for D. iguape and D. rerio increased by 0.01 µg L-1 and then decreased as the propiconazole concentration increased. The decrease in the averages of specific oxygen consumption at the concentration of 0.1 µg L-1 represented a reduction in the metabolic rate compared to the control of 71% for D. iguape and 40% D. rerio. For the ammonia excretion, at the same concentration, there was a reduction of 68.7% and 45.4% for D. iguape and D. rerio, respectively. When comparing ammonia excretion of the two species for each concentration of propiconazole, there was a significant difference (p < 0.05) in relation to the control and for the highest concentration (0.1 µg L-1). As for specific oxygen consumption, there was a statistically significant difference only for the concentration of 0.1 µg L-1. D. iguape proved to be a good and useful bioindicator for ichthyologists or ecologists in studies of moderate pesticide contamination in freshwater aquatic environments, as its metabolic response was similar to D. rerio.
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Affiliation(s)
- Marcelo Barbosa Henriques
- Instituto de Pesca-Governo do Estado de São Paulo, Av. Bartolomeu de Gusmão, 192, Ponta da Praia, Santos, SP, 11030-906, Brazil.
| | - Karina Fernandes Oliveira Rezende
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade de São Paulo, Av. Prof. Lineu Prestes, 1524, São Paulo, SP, 05508-000, Brazil
| | - Leonardo Castilho-Barros
- Instituto de Pesca-Governo do Estado de São Paulo, Av. Bartolomeu de Gusmão, 192, Ponta da Praia, Santos, SP, 11030-906, Brazil
| | - Edison Barbieri
- Instituto de Pesca Governo Do Estado de São Paulo, Av. Professor Wladimir Besnard, s/n, Cananéia, SP, 11990-000, Brazil
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5
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Wayment DG, Ledet HJ, Torres KA, White PM. Soil dissipation of sugarcane billet seed treatment fungicides and insecticide using QuEChERS and HPLC. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2021; 56:188-196. [PMID: 33499735 DOI: 10.1080/03601234.2020.1858685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Chemical treatment of sugarcane seed with fungicides and insecticides prior to planting increases yields of cane and sugar for the perennial, annually harvested crop. However, the fate of the applied chemicals is unknown. Therefore, the purpose of this study was to measure the aerobic dissipation of selected billet seed treatment chemicals in a mineral sugarcane soil from Louisiana. Soil samples from the surface 15 cm were treated with either thiamethoxam, azoxystrobin, fluxapyroxad, propiconazole, or pyraclostrobin and monitored over 100 days under laboratory conditions. Insecticide and fungicide levels were determined by high performance liquid chromatography. Dissipation data were fitted to four kinetic models: simple first-order (SFO), first order multi-compartment (FOMC), double-first order in parallel (DFOP), and hockey-stick (HS). The dissipation half-life (DT50) of thiamethoxam, azoxystrobin, fluxapyroxad, propiconazole, or pyraclostrobin were 275, 100, 144, 74, and 39 d, respectively. Overall, the DT50 for the pesticides in the study indicated medium to long persistence in soil under the conditions of the experiment. This is the first report for several of these pesticides related to the aerobic dissipation in soils used to grow sugarcane.
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Affiliation(s)
- Darcey G Wayment
- Department of Chemistry and Physical Sciences, Nicholls State University, Thibodaux, Louisiana, USA
| | - Harley J Ledet
- Department of Chemistry and Physical Sciences, Nicholls State University, Thibodaux, Louisiana, USA
| | - Kylie A Torres
- Department of Chemistry and Physical Sciences, Nicholls State University, Thibodaux, Louisiana, USA
| | - Paul M White
- Agricultural Research Service (ARS), United States Department of Agriculture (USDA), Sugarcane Research Unit, Houma, Louisiana, USA
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6
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Bielská L, Hale SE, Škulcová L. A review on the stereospecific fate and effects of chiral conazole fungicides. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 750:141600. [PMID: 33182213 DOI: 10.1016/j.scitotenv.2020.141600] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 07/29/2020] [Accepted: 08/08/2020] [Indexed: 06/11/2023]
Abstract
The production and use of chiral pesticides are triggered by the need for more complex molecules capable of effectively combating a greater spectrum of pests and crop diseases, while sustaining high production yields. Currently, chiral pesticides comprise about 30% of all pesticides in use; however, some pesticide groups such as conazole fungicides (CFs) consist almost exclusively of chiral compounds. CFs are produced and field-applied as racemic (1:1) mixtures of two enantiomers (one chiral center in the molecule) or four diastereoisomers, i.e., two pairs of enantiomers (two chiral centers in the molecule). Research on the stereoselective environmental behavior and effects of chiral pesticides such as CFs has become increasingly important within the fields of environmental chemistry and ecotoxicology. This is motivated by the fact that currently, the fate and effects of chiral pesticides such as CFs that arise due to their stereoselectivity are not fully understood and integrated into risk assessment and regulatory decisions. In order to fill this gap, a summary of the state-of-the-art literature related to the stereospecific fate and effects of CFs is needed. This will also benefit the agrochemistry industry as they enhance their understanding of the environmental implications of CFs which will aid future research and development of chiral products. This review provides a collection of >80 stereoselective studies for CFs related to chiral analytical methods, fungicidal activity, non-target toxicity, and behavior of this broadly used pesticide class in the soil environment. In addition, the review sheds more light on mechanisms behind stereoselectivity, considers possible agricultural and environmental implications, and suggests future directions for the safe use of chiral CFs and the reduction of their environmental footprint.
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Affiliation(s)
- Lucie Bielská
- Recetox, Faculty of Science, Masaryk University, Kamenice 5, Brno 625 00, Czech Republic.
| | - Sarah E Hale
- Norwegian Geotechnical Institute (NGI), P.O. Box 3930, Ullevål Stadion, N-0806 Oslo, Norway
| | - Lucia Škulcová
- Recetox, Faculty of Science, Masaryk University, Kamenice 5, Brno 625 00, Czech Republic
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Azhari NR, Yahaya N, Mohd Suah FBM, Prabu S, Yih Hui B, Shahriman MS, Mohamad Zain NN, Raoov M. Enantioseparation of ketoconazole and miconazole by capillary electrophoresis and a study on their inclusion interactions with β-cyclodextrin and derivatives. Chirality 2020; 33:37-50. [PMID: 33197086 DOI: 10.1002/chir.23285] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/22/2020] [Accepted: 10/14/2020] [Indexed: 11/07/2022]
Abstract
A chiral separation method coupled with capillary electrophoresis (CE) analysis for ketoconazole and miconazole enantiomers using chiral selectors such as β-cyclodextrin (β-CD) and hydroxypropyl-β-CD (HP-β-CD) was developed in this study, which included the optimisation, validation and application of the method on the antifungal cream samples. The formation of inclusion complex between the hosts (β-CD and HP-β-CD) and guests (ketoconazole and miconazole) were compared and analysed using ultraviolet-visible spectrophotometry, nuclear magnetic resonance (NMR) spectroscopy and molecular docking methods. Results from the study showed that in a concentration that ranged between 0.25 and 50 mg L-1 , the linear calibration curves of each enantiomer had a high coefficient of regression (R2 > 0.999), low limit of detection (0.075 mg L-1 ) and low limit of quantification (0.25 mg L-1 ). The relative standard deviation (RSD) of the intraday and interday analyses ranged from 0.79% to 8.01% and 3.30% to 11.43%, respectively, while the recoveries ranged from 82.0% to 105.7% (RSD < 7%, n = 3). The most probable structure of the inclusion complexes was proposed based on the findings from the molecular docking studies conducted using the PatchDock server.
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Affiliation(s)
- Nurul Raihana Azhari
- Integrative Medicine Cluster, Advanced Medical and Dental Institute (AMDI), University of Science, Malaysia, Penang, Malaysia
| | - Noorfatimah Yahaya
- Integrative Medicine Cluster, Advanced Medical and Dental Institute (AMDI), University of Science, Malaysia, Penang, Malaysia
| | | | - Samikannu Prabu
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Boon Yih Hui
- Malaysian Pharmaceutical Industries Sdn. Bhd, Penang, Malaysia
| | | | - Nur Nadhirah Mohamad Zain
- Integrative Medicine Cluster, Advanced Medical and Dental Institute (AMDI), University of Science, Malaysia, Penang, Malaysia
| | - Muggundha Raoov
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
- Centre for Ionic Liquids, Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
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Siek M, Paszko T. Factors affecting coupled degradation and time-dependent sorption processes of tebuconazole in mineral soil profiles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 690:1035-1047. [PMID: 31302536 DOI: 10.1016/j.scitotenv.2019.06.409] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 06/21/2019] [Accepted: 06/24/2019] [Indexed: 06/10/2023]
Abstract
This laboratory degradation and adsorption study aimed to determine the tebuconazole degradation parameters for 6 profiles of Polish mineral soils and to find links between the tebuconazole degradation rate, its adsorption, soil microbial activity and other significant soil properties. The values of the adsorption distribution coefficient Kd, obtained in batch experiments after 96 h of shaking were in the range of 6.2-34.6 mL g-1. In both batch experiments and incubation experiments at 20 °C, the typical course of adsorption processes was observed, an initial rapid stage followed by a slow stage. In 3 of the 18 soils examined, adsorption was not reached within 51 days. The range of the half-life values was 201-433 days for the Ap horizon and up to 3904 days for subsoils, which were estimated using the two-site nonequilibrium adsorption model coupled with first-order degradation for dissolved and adsorbed pesticide. It was found that modeling the degradation of tebuconazole on the basis of the coefficients of microbial biomass activity for topsoil and two subsoils explained almost 96% of the variance of the estimated pore water degradation rate coefficients in examined soils. The degradation rate was also negatively correlated with the amount adsorbed in the time dependent adsorption sites. This fraction was the least available for soil microorganisms because it was strongly adsorbed in soil pores with a radius <2.5 nm, determined from the H2O desorption isotherm. The degradation rate was also affected by the ratio of the water content in soil during degradation experiments to the water content at field capacity. The results indicated that degradation occurred in the soil liquid phase only.
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Affiliation(s)
- M Siek
- Department of Chemistry, University of Life Sciences, Akademicka 15, 20-950 Lublin, Poland
| | - T Paszko
- Department of Chemistry, University of Life Sciences, Akademicka 15, 20-950 Lublin, Poland.
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Paszko T, Jankowska M. Modeling the effect of adsorption on the degradation rate of propiconazole in profiles of Polish Luvisols. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 161:584-593. [PMID: 29929135 DOI: 10.1016/j.ecoenv.2018.05.093] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 05/29/2018] [Accepted: 05/30/2018] [Indexed: 06/08/2023]
Abstract
Laboratory adsorption and degradation studies were carried out to determine the effect of time-dependent adsorption on propiconazole degradation rates in samples from three Polish Luvisols. Strong propiconazole adsorption (organic carbon normalized adsorption coefficients Koc in the range of 1217-7777 mL/g) was observed in batch experiments, with a typical biphasic mechanism with a fast initial step followed by the time-dependent step, which finished within 48 h in the majority of soils. The time-dependent step observed in incubation experiments was longer (duration from 5 to 23 d), and its contribution to total adsorption was from 20% to 34%. The half-lives obtained at 25 °C and 40% maximum water holding capacity of soil, were in the range of 34.7-112.9 d in the Ap horizon and in the range of 42.3-448.8 d for subsoils. The very strong correlations, between degradation rates in pore water and soil organic carbon and soil microbial activity, indicated that microbial degradation of propiconazole was most likely the only significant process responsible for the decay of this compound under aerobic conditions for the whole of the examined soil profiles. Modeling of the processes showed that only models coupling adsorption and degradation were able to correctly describe the experimental data. The analysis of the bioavailability factor values showed that degradation was not limited by the rate of propiconazole desorption from soil, but sorption affected the degradation rate by decreasing its availability for microorganisms.
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Affiliation(s)
- Tadeusz Paszko
- Department of Chemistry, University of Life Sciences, Akademicka 15, 20-950 Lublin, Poland.
| | - Monika Jankowska
- Department of Chemistry, University of Life Sciences, Akademicka 15, 20-950 Lublin, Poland
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Cheng Y, Zheng Y, Dong F, Li J, Zhang Y, Sun S, Li N, Cui X, Wang Y, Pan X, Zhang W. Stereoselective Analysis and Dissipation of Propiconazole in Wheat, Grapes, and Soil by Supercritical Fluid Chromatography-Tandem Mass Spectrometry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:234-243. [PMID: 27983813 DOI: 10.1021/acs.jafc.6b04623] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An efficient and sensitive chiral analytical method was established for the determination of propiconazole stereoisomers by supercritical fluid chromatography-tandem mass spectrometry (SFC-MS/MS). Stereoisomeric separation was performed on a Chiralpak AD-3 column with CO2/ethanol (93:7) as the mobile phase. The four propiconazole stereoisomers were well separated in 4.7 min with resolutions above 2.0. The specificity, linearity, matrix effects, accuracy, precision, and stability of the developed method were evaluated. The stereoselective dissipation of propiconazole in wheat straw, grape, and soil samples was investigated according to the proposed method. The results indicated that significant stereoselective degradation occurred in wheat straw and grapes, with preferential degradation of (-)-propiconazole A and (+)-propiconazole B in wheat straw and the opposite case in grapes. No enantioselectivity was observed in soil, although diastereoisomer A degraded more rapidly than diastereoisomer B. These results could contribute to a more accurate assessment of the environmental risk and food safety of propiconazole.
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Affiliation(s)
- Youpu Cheng
- Tianjin Agricultural University , Tianjin, China
| | - Yongquan Zheng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences , Beijing, China
| | - Fengshou Dong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences , Beijing, China
| | - Jing Li
- Institute of Quality Standard and Testing Technology for Agro-products , Tianjin Academy of Agricultural Sciences , Tianjin, China
| | | | - Shuhong Sun
- Tianjin Agricultural University , Tianjin, China
| | - Ning Li
- Tianjin Agricultural University , Tianjin, China
| | - Xinyi Cui
- Tianjin Agricultural University , Tianjin, China
| | | | - Xinglu Pan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences , Beijing, China
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11
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Best NB, Hartwig T, Budka JS, Bishop BJ, Brown E, Potluri DPV, Cooper BR, Premachandra GS, Johnston CT, Schulz B. Soilless plant growth media influence the efficacy of phytohormones and phytohormone inhibitors. PLoS One 2014; 9:e107689. [PMID: 25485677 PMCID: PMC4259294 DOI: 10.1371/journal.pone.0107689] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 06/20/2014] [Indexed: 11/29/2022] Open
Abstract
Plant growth regulators, such as hormones and their respective biosynthesis inhibitors, are effective tools to elucidate the physiological function of phytohormones in plants. A problem of chemical treatments, however, is the potential for interaction of the active compound with the growth media substrate. We studied the interaction and efficacy of propiconazole, a potent and specific inhibitor of brassinosteroid biosynthesis, with common soilless greenhouse growth media for rice, sorghum, and maize. Many of the tested growth media interacted with propiconazole reducing its efficacy up to a hundred fold. To determine the molecular interaction of inhibitors with media substrates, Fourier Transform Infrared Spectroscopy and sorption isotherm analysis was applied. While mica clay substrates absorbed up to 1.3 mg of propiconazole per g substrate, calcined clays bound up to 12 mg of propiconazole per g substrate. The efficacy of the gibberellic acid biosynthesis inhibitor, uniconazole, and the most active brassinosteroid, brassinolide, was impacted similarly by the respective substrates. Conversely, gibberellic acid showed no distinct growth response in different media. Our results suggest that the reduction in efficacy of propiconazole, uniconazole, and brassinolide in bioassays when grown in calcined clay is caused by hydrophobic interactions between the plant growth regulators and the growth media. This was further confirmed by experiments using methanol-water solvent mixes with higher hydrophobicity values, which reduce the interaction of propiconazole and calcined clay.
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Affiliation(s)
- Norman B. Best
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana, United States of America
| | - Thomas Hartwig
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana, United States of America
- Department of Plant Biology, Carnegie Institution for Science, Stanford, California, United States of America
| | - Joshua S. Budka
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana, United States of America
- Plant Soil and Nutrition Research Unit, USDA ARS, Ithaca, New York, United States of America
| | - Brandon J. Bishop
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana, United States of America
| | - Elliot Brown
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana, United States of America
| | - Devi P. V. Potluri
- Department of Biology, Chicago State University, Chicago, Illinois, United States of America
| | - Bruce R. Cooper
- Bindley Bioscience Center, Purdue University, West Lafayette, Indiana, United States of America
| | | | - Cliff T. Johnston
- Department of Agronomy, Purdue University, West Lafayette, Indiana, United States of America
| | - Burkhard Schulz
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana, United States of America
- * E-mail:
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12
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Sánchez-Hernández L, Guijarro-Diez M, Marina ML, Crego AL. New approaches in sensitive chiral CE. Electrophoresis 2013; 35:12-27. [DOI: 10.1002/elps.201300355] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 09/27/2013] [Accepted: 09/27/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Laura Sánchez-Hernández
- Department of Analytical Chemistry; Physical Chemistry and Chemical Engineering, Faculty of Biology, Environmental Sciences and Chemistry, University of Alcalá; Alcalá de Henares Madrid Spain
| | - Miguel Guijarro-Diez
- Department of Analytical Chemistry; Physical Chemistry and Chemical Engineering, Faculty of Biology, Environmental Sciences and Chemistry, University of Alcalá; Alcalá de Henares Madrid Spain
| | - María Luisa Marina
- Department of Analytical Chemistry; Physical Chemistry and Chemical Engineering, Faculty of Biology, Environmental Sciences and Chemistry, University of Alcalá; Alcalá de Henares Madrid Spain
| | - Antonio L. Crego
- Department of Analytical Chemistry; Physical Chemistry and Chemical Engineering, Faculty of Biology, Environmental Sciences and Chemistry, University of Alcalá; Alcalá de Henares Madrid Spain
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13
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Li Y, Dong F, Liu X, Xu J, Chen X, Han Y, Liang X, Zheng Y. Studies of Enantiomeric Degradation of the Triazole Fungicide Hexaconazole in Tomato, Cucumber, and Field Soil by Chiral Liquid Chromatography-Tandem Mass Spectrometry. Chirality 2013; 25:160-9. [DOI: 10.1002/chir.22121] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Accepted: 09/21/2012] [Indexed: 11/09/2022]
Affiliation(s)
- Yuanbo Li
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Key Laboratory of Integrated Pest Management in Crops; Ministry of Agriculture; Beijing 100193 People's Republic of China
| | - Fengshou Dong
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Key Laboratory of Integrated Pest Management in Crops; Ministry of Agriculture; Beijing 100193 People's Republic of China
| | - Xingang Liu
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Key Laboratory of Integrated Pest Management in Crops; Ministry of Agriculture; Beijing 100193 People's Republic of China
| | - Jun Xu
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Key Laboratory of Integrated Pest Management in Crops; Ministry of Agriculture; Beijing 100193 People's Republic of China
| | - Xiu Chen
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Key Laboratory of Integrated Pest Management in Crops; Ministry of Agriculture; Beijing 100193 People's Republic of China
| | - Yongtao Han
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Key Laboratory of Integrated Pest Management in Crops; Ministry of Agriculture; Beijing 100193 People's Republic of China
| | - Xuyang Liang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Key Laboratory of Integrated Pest Management in Crops; Ministry of Agriculture; Beijing 100193 People's Republic of China
| | - Yongquan Zheng
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Key Laboratory of Integrated Pest Management in Crops; Ministry of Agriculture; Beijing 100193 People's Republic of China
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14
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Jáč P, Scriba GKE. Recent advances in electrodriven enantioseparations. J Sep Sci 2012; 36:52-74. [DOI: 10.1002/jssc.201200836] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2012] [Revised: 09/22/2012] [Accepted: 09/22/2012] [Indexed: 01/05/2023]
Affiliation(s)
- Pavel Jáč
- Department of Pharmaceutical Chemistry; School of Pharmacy; Friedrich Schiller University; Jena; Germany
| | - Gerhard K. E. Scriba
- Department of Pharmaceutical Chemistry; School of Pharmacy; Friedrich Schiller University; Jena; Germany
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15
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Enantioselective separation and simultaneous determination of fenarimol and nuarimol in fruits, vegetables, and soil by liquid chromatography–tandem mass spectrometry. Anal Bioanal Chem 2012; 404:1983-91. [DOI: 10.1007/s00216-012-6325-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Revised: 07/17/2012] [Accepted: 08/02/2012] [Indexed: 10/27/2022]
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16
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Simultaneous enantioselective determination of triazole fungicide difenoconazole and its main chiral metabolite in vegetables and soil by normal-phase high-performance liquid chromatography. Anal Bioanal Chem 2012; 404:2017-31. [DOI: 10.1007/s00216-012-6240-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Revised: 06/22/2012] [Accepted: 06/29/2012] [Indexed: 11/26/2022]
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