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Zhang H, Zhang M, Zhang H, Shen X, Lv W, Wang X, Zhang J, Guo X. Bioaccumulation, transformation and toxicity of imidacloprid and dinotefuran in Eisenia fetida under single and binary exposure scenarios. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024:104570. [PMID: 39368615 DOI: 10.1016/j.etap.2024.104570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 09/08/2024] [Accepted: 10/03/2024] [Indexed: 10/07/2024]
Abstract
Earthworms (Eisenia fetida) were exposed to individual and binary mixture of imidacloprid (IMI) and dinotefuran (DIN) at 0.05 and 0.5mg/kg for 28 days to investigate their bioaccumulation, transformation and toxicity. IMI was more easily absorbed by earthworms than DIN, and worms didn't accumulate or generate toxic metabolites. The obvious accumulation of neonicotinoids during later period caused significant neural dysfunction, especially when exposed to high-concentration IMI. Meanwhile, oxidative stress indicated by decreased SOD/CAT activity (33.2%-68.1%) and increased MDA (38.4%-55.0%) was induced by binary exposure with high-concentration IMI. By contrast, coelomocytes responded earlier and more strongly than oxidative responses. Coelomocytes' viability and mitochondrial membrane potential were inhibited (23.6%-91.7%) mainly by IMI and binary exposure. Coelomocytes' lactate dehydrogenase activity exerted a fluctuating pattern, suggesting irregular disturbance on cellular functions. This study highlights the role of coelomocytes and the need to consider binary/multiple scenarios and transformation of neonicotinoids in their risk assessment to earthworms.
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Affiliation(s)
- Haiyun Zhang
- Shanghai Academy of Agricultural Sciences, Agricultural Environment and Farmland Conservation Experiment Station of Ministry Agriculture, Key Laboratory of Low-carbon Green Agriculture in Southeastern China, Ministry of Agriculture and Rural Affairs, Shanghai 201403, China
| | - Meng Zhang
- Co‑Innovation Center for Sustainable Forestry in Southern China, College of Ecology and Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Hanlin Zhang
- Shanghai Academy of Agricultural Sciences, Agricultural Environment and Farmland Conservation Experiment Station of Ministry Agriculture, Key Laboratory of Low-carbon Green Agriculture in Southeastern China, Ministry of Agriculture and Rural Affairs, Shanghai 201403, China
| | - Xiaofang Shen
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Weiguang Lv
- Shanghai Academy of Agricultural Sciences, Agricultural Environment and Farmland Conservation Experiment Station of Ministry Agriculture, Key Laboratory of Low-carbon Green Agriculture in Southeastern China, Ministry of Agriculture and Rural Affairs, Shanghai 201403, China
| | - Xilong Wang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Juanqin Zhang
- Shanghai Academy of Agricultural Sciences, Agricultural Environment and Farmland Conservation Experiment Station of Ministry Agriculture, Key Laboratory of Low-carbon Green Agriculture in Southeastern China, Ministry of Agriculture and Rural Affairs, Shanghai 201403, China.
| | - Xiaoying Guo
- School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China.
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Lu YP, Liu JH, Zhang XX, Xu C, Zheng PH, Li JT, Li JJ, Wang DM, Xian JA, Zhang ZL. Integration of transcriptome, gut microbiota, and physiology reveals toxic responses of the red claw crayfish (Cherax quadricarinatus) to imidacloprid. JOURNAL OF HAZARDOUS MATERIALS 2024; 470:134293. [PMID: 38615646 DOI: 10.1016/j.jhazmat.2024.134293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/29/2024] [Accepted: 04/10/2024] [Indexed: 04/16/2024]
Abstract
Imidacloprid enters the water environment through rainfall and causes harm to aquatic crustaceans. However, the potential chronic toxicity mechanism of imidacloprid in crayfish has not been comprehensively studied. In this study, red claw crayfish (Cherax quadricarinatus) were exposed to 11.76, 35.27, or 88.17 μg/L imidacloprid for 30 days, and changes in the physiology and biochemistry, gut microbiota, and transcriptome of C. quadricarinatus and the interaction between imidacloprid, gut microbiota, and genes were studied. Imidacloprid induced oxidative stress and decreased growth performance in crayfish. Imidacloprid exposure caused hepatopancreas damage and decreased serum immune enzyme activity. Hepatopancreatic and plasma acetylcholine decreased significantly in the 88.17 μg/L group. Imidacloprid reduced the diversity of the intestinal flora, increased the abundance of harmful flora, and disrupted the microbiota function. Transcriptomic analysis showed that the number of up-and-down-regulated differentially expressed genes (DEGs) increased significantly with increasing concentrations of imidacloprid. DEG enrichment analyses indicated that imidacloprid inhibits neurotransmitter transduction and immune responses and disrupts energy metabolic processes. Crayfish could alleviate imidacloprid stress by regulating antioxidant and detoxification-related genes. A high correlation was revealed between GST, HSPA1s, and HSP90 and the composition of gut microorganisms in crayfish under imidacloprid stress. This study highlights the negative effects and provides detailed sequencing data from transcriptome and gut microbiota to enhance our understanding of the molecular toxicity of imidacloprid in crustaceans.
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Affiliation(s)
- Yao-Peng Lu
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Jia-Han Liu
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Xiu-Xia Zhang
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Chi Xu
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Pei-Hua Zheng
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Jun-Tao Li
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Jia-Jun Li
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Dong-Mei Wang
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Jian-An Xian
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China.
| | - Ze-Long Zhang
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China.
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Chang J, Gao K, Li R, Dong F, Zheng Y, Zhang Q, Li Y. Comparative uptake, translocation and metabolism of phenamacril in crops under hydroponic and soil cultivation conditions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 925:171670. [PMID: 38485020 DOI: 10.1016/j.scitotenv.2024.171670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/08/2024] [Accepted: 03/10/2024] [Indexed: 03/22/2024]
Abstract
Many studies investigate the plant uptake and metabolism of xenobiotics by hydroponic experiments, however, plants grown in different conditions (hydroponic vs. soil) may result in different behaviors. To explore the potential differences, a comparative study on the uptake, translocation and metabolism of the fungicide phenamacril in crops (wheat/rice) under hydroponic and soil cultivation conditions was conducted. During 7-14 days of exposure, the translocation factors (TFs) of phenamacril were greatly overestimated in hydroponic-wheat (3.6-5.2) than those in soil-wheat systems (1.1-2.0), with up to 3.3 times of difference between the two cultivation systems, implying it should be cautious to extrapolate the results obtained from hydroponic to field conditions. M-144 was formed in soil pore water (19.1-29.9 μg/L) in soil-wheat systems but not in the hydroponic solution in hydroponics; M-232 was only formed in wheat shoots (89.7-103.0 μg/kg) under soil cultivation conditions, however, it was detected in hydroponic solution (20.1-21.2 μg/L), wheat roots (146.8-166.0 μg/kg), and shoots (239.2-348.1 μg/kg) under hydroponic conditions. The root concentration factors (RCFs) and TFs of phenamacril in rice were up to 2.4 and 3.6 times higher than that in wheat for 28 days of the hydroponic exposure, respectively. These results highlighted that cultivation conditions and plant species could influence the fate of pesticides in crops, which should be considered to better assess the potential accumulation and transformation of pesticides in crops.
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Affiliation(s)
- Jinhe Chang
- State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao 266109, China
| | - Kang Gao
- State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Runan Li
- State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Zhongyuan Research Center, Chinese Academy of Agricultural Sciences, XinXiang 453500, China.
| | - Fengshou Dong
- State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yongquan Zheng
- College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao 266109, China
| | - Qingming Zhang
- College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao 266109, China
| | - Yuanbo Li
- State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Zhongyuan Research Center, Chinese Academy of Agricultural Sciences, XinXiang 453500, China
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Zhang Y, Wang B, Sun W, Wang G, Liu Z, Zhang X, Ding J, Han Y, Zhang H. Paternal exposures to endocrine-disrupting chemicals induce intergenerational epigenetic influences on offspring: A review. ENVIRONMENT INTERNATIONAL 2024; 187:108689. [PMID: 38688236 DOI: 10.1016/j.envint.2024.108689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/28/2024] [Accepted: 04/22/2024] [Indexed: 05/02/2024]
Abstract
Endocrine-disrupting chemicals (EDCs) are ubiquitous in ecological environments and have become a great issue of public health concern since the 1990 s. There is a deep scientific understanding of the toxicity of EDCs. However, recent studies have found that the abnormal physiological functions of the parents caused by EDCs could be transmitted to their unexposed offspring, leading to intergenerational toxicity. We questioned whether sustained epigenetic changes occur through the male germline. In this review, we (1) systematically searched the available research on the intergenerational impacts of EDCs in aquatic and mammal organisms, including 42 articles, (2) summarized the intergenerational genetic effects, such as decreased offspring survival, abnormal reproductive dysfunction, metabolic disorders, and behavioral abnormalities, (3) summarized the mechanisms of intergenerational toxicity through paternal interactions, and (4) propose suggestions on future research directions to develop a deeper understanding of the ecological risk of EDCs.
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Affiliation(s)
- Yinan Zhang
- Hangzhou Normal University, Hangzhou 310018, China
| | - Bingyi Wang
- Hangzhou Normal University, Hangzhou 310018, China
| | - Wenhui Sun
- Hangzhou Normal University, Hangzhou 310018, China
| | | | - Zhiquan Liu
- Hangzhou Normal University, Hangzhou 310018, China; Hangzhou International Urbanology Research Center, Hangzhou 311121, China
| | | | - Jiafeng Ding
- Hangzhou Normal University, Hangzhou 310018, China
| | - Yu Han
- Hangzhou Normal University, Hangzhou 310018, China
| | - Hangjun Zhang
- Hangzhou Normal University, Hangzhou 310018, China; Hangzhou International Urbanology Research Center, Hangzhou 311121, China.
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Liu H, Tang X, Tam NFY, Li Q, Ruan W, Xu X, Gao Y, Yan Q, Zhang X, Dai Y, Yang Y. Phytodegradation of neonicotinoids in Cyperus papyrus from enzymatic and transcriptomic perspectives. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132715. [PMID: 37844494 DOI: 10.1016/j.jhazmat.2023.132715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 09/24/2023] [Accepted: 10/03/2023] [Indexed: 10/18/2023]
Abstract
Neonicotinoids are widely used but environmentally hazardous insecticides. Constructed wetlands offer potential for neonicotinoid removal, but the corresponding metabolic pathways and mechanisms in wetland plants are incompletely understood. This study investigated the fate of six neonicotinoids and their metabolites in Cyperus papyrus, a common wetland plant, and the underlying metabolic mechanisms through enzymatic and transcriptomic analyses. Neonicotinoids were absorbed by roots and translocated upward, causing high levels in shoots. Concentrations of neonicotinoids and their metabolites declined to their minimum at day 28 of exposure. Nitro reduction, hydroxylation, and demethylation were the major metabolic reactions with which C. papyrus responded to neonicotinoids. These reactions may be mediated by cytochrome P450 enzyme, aldehyde oxidase, glutathione-disulfide reductase, and glucuronate reductase. The toxicity of neonicotinoids in C. papyrus was evaluated according to the peroxidase and catalase enzymatic activities. Transcriptomic analysis revealed that differentially expressed genes (DEGs) mainly encoded proteins related to immune processes and cell growth regulation. Co-expression correlation analysis of DEGs revealed that the genes encoding P450s, peroxidase and glutathione S-transferase were the key functional genes. This study elucidates the stress response and degradation mechanism of neonicotinoids in wetland plants, providing new insights into the phytoremediation of organic contaminants in constructed wetlands.
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Affiliation(s)
- Huanping Liu
- Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Institute of Hydrobiology, Jinan university, Guangzhou 510632, China; Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), State Key Laboratory for Biocontrol, Guangzhou 510275, China
| | - Xiaoyan Tang
- Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Institute of Hydrobiology, Jinan university, Guangzhou 510632, China; Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Sichuan Normal University, Chengdu 610068, China.
| | - Nora Fung-Yee Tam
- School of Science and Technology, The Hong Kong Metropolitan University, Ho Man Tin, Kowloon, Hong Kong Special Administrative Region, China
| | - Qiwen Li
- Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Institute of Hydrobiology, Jinan university, Guangzhou 510632, China
| | - Weifeng Ruan
- Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Institute of Hydrobiology, Jinan university, Guangzhou 510632, China
| | - Xiaomin Xu
- Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Institute of Hydrobiology, Jinan university, Guangzhou 510632, China
| | - Yanxia Gao
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510006, China
| | - Qingyun Yan
- Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), State Key Laboratory for Biocontrol, Guangzhou 510275, China
| | - Xiaomeng Zhang
- Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Institute of Hydrobiology, Jinan university, Guangzhou 510632, China
| | - Yunv Dai
- Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Institute of Hydrobiology, Jinan university, Guangzhou 510632, China
| | - Yang Yang
- Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Institute of Hydrobiology, Jinan university, Guangzhou 510632, China.
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Erban T, Parizkova K, Sopko B, Talacko P, Markovic M, Jarosova J, Votypka J. Imidacloprid increases the prevalence of the intestinal parasite Lotmaria passim in honey bee workers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:166973. [PMID: 37699488 DOI: 10.1016/j.scitotenv.2023.166973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/05/2023] [Accepted: 09/08/2023] [Indexed: 09/14/2023]
Abstract
A challenge in bee protection is to assess the risks of pesticide-pathogen interactions. Lotmaria passim, a ubiquitous unicellular parasite in honey bees, is considered harmful under specific conditions. Imidacloprid causes unpredictable side effects. Research indicates that both L. passim and imidacloprid may affect the physiology, behavior, immunity, microbiome and lifespan of honey bees. We designed cage experiments to test whether the infection of L. passim is affected by a sublethal dose of imidacloprid. Workers collected at the time of emergence were exposed to L. passim and 2.5 μg/L imidacloprid in the coexposure treatment group. First, samples of bees were taken from cages since they were 5 days old and 3 days postinfection, i.e., after finishing an artificial 24 h L. passim infection. Additional bees were collected every two additional days. In addition, bees frozen at the time of emergence and collected from the unexposed group were analyzed. Abdomens were analyzed using qPCR to determine parasite load, while corresponding selected heads were subjected to a label-free proteomic analysis. Our results show that bees are free of L. passim at the time of emergence. Furthermore, imidacloprid considerably increased the prevalence as well as parasite loads in individual bees. This means that imidacloprid facilitates infection, enabling faster parasite spread in a colony and potentially to surrounding colonies. The proteomic analysis of bee heads showed that imidacloprid neutralized the increased transferrin 1 expression by L. passim. Importantly, this promising marker has been previously observed to be upregulated by infections, including gut parasites. This study contributes to understanding the side effects of imidacloprid and demonstrates that a single xenobiotic/pesticide compound can interact with the gut parasite. Our methodology can be used to assess the effects of different compounds on L. passim.
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Affiliation(s)
- Tomas Erban
- Proteomics and Metabolomics Laboratory, Crop Research Institute, Drnovska 507/73, Prague 6-Ruzyne CZ-161 06, Czechia.
| | - Kamila Parizkova
- Department of Parasitology, Faculty of Science, Charles University, Vinicna 1594/7, Prague 2 CZ-128 00, Czechia
| | - Bruno Sopko
- Proteomics and Metabolomics Laboratory, Crop Research Institute, Drnovska 507/73, Prague 6-Ruzyne CZ-161 06, Czechia
| | - Pavel Talacko
- Proteomics Core Facility, Faculty of Science, BIOCEV, Charles University, Prumyslova 595, Vestec CZ-252 50, Czechia
| | - Martin Markovic
- Proteomics and Metabolomics Laboratory, Crop Research Institute, Drnovska 507/73, Prague 6-Ruzyne CZ-161 06, Czechia
| | - Jana Jarosova
- Laboratory of Hormonal Regulations in Plants, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojova 263, Prague 6-Lysolaje CZ-165 02, Czechia
| | - Jan Votypka
- Department of Parasitology, Faculty of Science, Charles University, Vinicna 1594/7, Prague 2 CZ-128 00, Czechia; Institute of Parasitology, Biology Centre, Czech Academy of Sciences, Branisovska 1160/31, Ceske Budejovice CZ-37005, Czechia
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7
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Eriksson I, Ward LJ, Vainikka L, Sultana N, Leanderson P, Flodin U, Li W, Yuan XM. Imidacloprid Induces Lysosomal Dysfunction and Cell Death in Human Astrocytes and Fibroblasts-Environmental Implication of a Clinical Case Report. Cells 2023; 12:2772. [PMID: 38132092 PMCID: PMC10742227 DOI: 10.3390/cells12242772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 12/01/2023] [Indexed: 12/23/2023] Open
Abstract
Imidacloprid (IMI), a neonicotinoid insecticide, has potential cytotoxic and genotoxic effects on human and experimental models, respectively. While being an emerging environmental contaminant, occupational exposure and related cellular mechanisms are unknown. Herein, we were motivated by a specific patient case where occupational exposure to an IMI-containing plant protection product was associated with the diagnosis of Bell's palsy. The aim was to investigate the toxic effects and cellular mechanisms of IMI exposure on glial cells (D384 human astrocytes) and on human fibroblasts (AG01518). IMI-treated astrocytes showed a reduction in cell number and dose-dependent cytotoxicity at 24 h. Lower doses of IMI induced reactive oxygen species (ROS) and lysosomal membrane permeabilisation (LMP), causing apoptosis and autophagic dysfunction, while high doses caused significant necrotic cell death. Using normal fibroblasts, we found that IMI-induced autophagic dysfunction and lysosomal damage, activated lysophagy, and resulted in a compensatory increase in lysosomes. In conclusion, the observed IMI-induced effects on human glial cells and fibroblasts provide a possible link between IMI cytotoxicity and neurological complications observed clinically in the patient exposed to this neonicotinoid insecticide.
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Affiliation(s)
- Ida Eriksson
- Experimental Pathology, Department of Biomedical and Clinical Sciences, Linköping University, 581 85 Linköping, Sweden; (I.E.); (L.V.)
| | - Liam J. Ward
- Department of Forensic Genetics and Forensic Toxicology, National Board of Forensic Medicine, 587 85 Linköping, Sweden; (L.J.W.)
| | - Linda Vainikka
- Experimental Pathology, Department of Biomedical and Clinical Sciences, Linköping University, 581 85 Linköping, Sweden; (I.E.); (L.V.)
| | - Nargis Sultana
- Laboratory Medicine, Linköping University Hospital, 581 85 Linköping, Sweden; (N.S.)
| | - Per Leanderson
- Occupational and Environmental Medicine, Department of Health, Medicine and Caring Sciences, Linköping University, 581 85 Linköping, Sweden; (P.L.); (U.F.); (X.-M.Y.)
| | - Ulf Flodin
- Occupational and Environmental Medicine, Department of Health, Medicine and Caring Sciences, Linköping University, 581 85 Linköping, Sweden; (P.L.); (U.F.); (X.-M.Y.)
| | - Wei Li
- Obstetrics and Gynaecology, Department of Biomedical and Clinical Sciences, Linköping University, 581 85 Linköping, Sweden; (W.L.)
| | - Xi-Ming Yuan
- Occupational and Environmental Medicine, Department of Health, Medicine and Caring Sciences, Linköping University, 581 85 Linköping, Sweden; (P.L.); (U.F.); (X.-M.Y.)
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Zhuang L, Wu X, Lyu D, Wang M, Zhou R, Song J, Rong Y. Application of pesticide application measures to reduce residue based on the metabolic transfer law of imidacloprid in banana leaves and soil. CHEMOSPHERE 2023; 344:140290. [PMID: 37758084 DOI: 10.1016/j.chemosphere.2023.140290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 09/07/2023] [Accepted: 09/25/2023] [Indexed: 10/03/2023]
Abstract
An investigation of the metabolism and transfer of imidacloprid (IMI) in banana plants and soil was performed using high-resolution mass spectrometry. Results indicated the presence of eight IMI metabolites in soil and leaves that resulted from hydroxylation of the imidazolidine ring, the reduction and loss of nitro groups, and oxidative cleavage of methylene bridges. Six metabolites, including 4/5-hydroxy IMI (4/5-hydroxy), IMI olefin (olefin), and 6-chloronicotinic acid (6-CNA), were detected in the fruits following leaf treatment, while only three were detected after soil treatment. Quantitative analysis showed that the total amount of imidacloprid and its metabolites transferred from leaves to fruits was higher than that transferred from soil to fruits. Therefore, leaf transfer was considered the main means by which IMI and its metabolites transferred to banana fruits. We found that adjuvants tank-mixed with IMI could reduce the total concentration of pesticide transfer from leaves to fruits, especially reducing the amount of metabolites transformed from the reduction and loss of nitro groups and oxidative cleavage of methylene bridges, thus reducing the pesticide residue in fruits and achieving the purpose of reducing the safety risk.
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Affiliation(s)
- Lvyun Zhuang
- Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Haikou 571100, China; College of Plant Science and Technology, Department of Plant Protection, Huazhong Agricultural University, Wuhan 430070, China.
| | - Xiaopeng Wu
- Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Haikou 571100, China.
| | - Daizhu Lyu
- Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Haikou 571100, China; Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Haikou 571100, China.
| | - Mingyue Wang
- Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Haikou 571100, China.
| | - Ruohao Zhou
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Haikou 571100, China.
| | - Jia Song
- Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruit and Vegetable Products, Haikou 571100, China.
| | - Yu Rong
- Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Haikou 571100, China.
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9
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Li D, Zhou C, Wang S, Hu Z, Xie J, Pan C, Sun R. Imidacloprid-induced stress affects the growth of pepper plants by disrupting rhizosphere-plant microbial and metabolite composition. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 898:165395. [PMID: 37437628 DOI: 10.1016/j.scitotenv.2023.165395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 07/14/2023]
Abstract
Overusing imidacloprid (IMI) has been found to impede secondary metabolism and hinder plant growth. The impact of IMI stress on the interaction between metabolites, rhizosphere, and plant-microbe dispersion through various pathways in pepper plants has not been extensively studied. This study investigated the effects of IMI on plant signaling components, secondary metabolic pathways, and microbial communities in the rhizosphere and phyllosphere. Here, the distribution of IMI and its metabolites (6-chloronicotinic acid, IMI-desnitro, 5-hydroxy-IMI, IMI-urea, and IMI-olefin) was primarily observed in the pepper plant leaves. A rise in IMI concentration had a more significant inhibitive effect on the metabolism of pepper leaves than on pepper roots. The findings of non-target metabolomics indicated that IMI exposure primarily suppresses secondary metabolism in pepper plants, encompassing flavones, phenolic acids, and phytohormones. Notably, the IMI treatment disrupted the equilibrium between plants and microbes by decreasing the population of microorganisms such as Vicinamibacteria, Verrucomicrobiae, Gemmatimonadetes, and Gammaproteobacteria in the phyllosphere, as well as Vicinamibacteria, Gemmatimonadetes, Gammaproteobacteria, and Alphaproteobacteria in the rhizosphere of pepper plants. The study demonstrates that overexposure to IMI harms microbial composition and metabolite distribution in the rhizosphere soil and pepper seedlings, inhibiting plant growth.
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Affiliation(s)
- Dong Li
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, School of Plant Protection, Hainan University, Haikou, Hainan 570228, PR China
| | - Chunran Zhou
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China Yuanmingyuan West Road 2, Beijing 100193, PR China
| | - Shuai Wang
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, School of Plant Protection, Hainan University, Haikou, Hainan 570228, PR China
| | - Zhan Hu
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, School of Plant Protection, Hainan University, Haikou, Hainan 570228, PR China
| | - Jia Xie
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, School of Plant Protection, Hainan University, Haikou, Hainan 570228, PR China
| | - Canping Pan
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China Yuanmingyuan West Road 2, Beijing 100193, PR China.
| | - Ranfeng Sun
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, School of Plant Protection, Hainan University, Haikou, Hainan 570228, PR China.
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10
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Zhai R, Chen G, Liu G, Huang X, Xu X, Li L, Zhang Y, Xu D, Abd El-Aty AM. Comparison of Chemiluminescence Enzyme Immunoassay (Cl-ELISA) with Colorimetric Enzyme Immunoassay (Co-ELISA) for Imidacloprid Detection in Vegetables. Foods 2023; 12:foods12010196. [PMID: 36613412 PMCID: PMC9818176 DOI: 10.3390/foods12010196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/22/2022] [Accepted: 12/26/2022] [Indexed: 01/03/2023] Open
Abstract
Imidacloprid is one of the most commonly used insecticides for managing pests, thus, improving the quality and yield of vegetables. The abuse/misuse of imidacloprid contaminates the environment and threatens human health. To reduce the risk, a colorimetric enzyme-linked immunoassay assay (Co-ELISA) and chemiluminescence enzyme-linked immunoassay assay (Cl-ELISA) were established to detect imidacloprid residues in vegetables. The linear range of Co-ELISA ranged between 1.56 μg/L and 200 μg/L with a limit of detection (LOD) of 1.56 μg/L. The values for Cl-ELISA were 0.19 μg/L to 25 μg/L with an LOD of 0.19 μg/L, which are lower than those of Co-ELISA. Fortifying Chinese cabbage, cucumber, and zucchini with imidacloprid at 10, 50, and 100 μg/L yielded recoveries between 81.7 and 117.6% for Co-ELISA and at 5, 10, and 20 µg/L yielded recoveries range from 69.7 to 120.6% for Cl-ELISA. These results indicate that Cl-ELISA has a high sensitivity and a rapid detection time, saving cost (antigen and antibody concentrations) and serving as a more efficient model for the rapid detection of imidacloprid residue.
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Affiliation(s)
- Rongqi Zhai
- Key Laboratory of Vegetables Quality and Safety Control, Laboratory of Quality & Safety Risk Assessment for Vegetable Products, Ministry of Agriculture and Rural Affairs, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Ge Chen
- Key Laboratory of Vegetables Quality and Safety Control, Laboratory of Quality & Safety Risk Assessment for Vegetable Products, Ministry of Agriculture and Rural Affairs, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Guangyang Liu
- Key Laboratory of Vegetables Quality and Safety Control, Laboratory of Quality & Safety Risk Assessment for Vegetable Products, Ministry of Agriculture and Rural Affairs, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xiaodong Huang
- Key Laboratory of Vegetables Quality and Safety Control, Laboratory of Quality & Safety Risk Assessment for Vegetable Products, Ministry of Agriculture and Rural Affairs, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xiaomin Xu
- Key Laboratory of Vegetables Quality and Safety Control, Laboratory of Quality & Safety Risk Assessment for Vegetable Products, Ministry of Agriculture and Rural Affairs, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Lingyun Li
- Key Laboratory of Vegetables Quality and Safety Control, Laboratory of Quality & Safety Risk Assessment for Vegetable Products, Ministry of Agriculture and Rural Affairs, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yanguo Zhang
- Key Laboratory of Vegetables Quality and Safety Control, Laboratory of Quality & Safety Risk Assessment for Vegetable Products, Ministry of Agriculture and Rural Affairs, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Donghui Xu
- Key Laboratory of Vegetables Quality and Safety Control, Laboratory of Quality & Safety Risk Assessment for Vegetable Products, Ministry of Agriculture and Rural Affairs, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Correspondence: ; Tel.: +86-10-8210-6963
| | - A. M. Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
- Department of Medical Pharmacology, Faculty of Medicine, Atatürk University, 25240 Erzurum, Turkey
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11
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Borah S, Hazarika DJ, Baruah M, Bora SS, Gogoi M, Boro RC, Barooah M. Imidacloprid degrading efficiency of Pseudomonas plecoglossicida MBSB-12 isolated from pesticide contaminated tea garden soil of Assam. World J Microbiol Biotechnol 2022; 39:59. [PMID: 36572801 DOI: 10.1007/s11274-022-03507-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022]
Abstract
Long-term use of toxic pesticides in agricultural grounds has led to adverse effects on the environment and human health. Microbe-mediated biodegradation of pollutants is considered an effective strategy for the removal of contaminants in agricultural and environmental sustainability. Imidacloprid, a neonicotinoid class of pesticides, was widely applied insecticide in the control of pests in agricultural fields including the tea gardens of Assam. Here, native bacteria from imidacloprid contaminating tea garden soils were isolated and screened for imidacloprid degradation efficiency under laboratory conditions. Out of the 30 bacterial isolates, 4 were found to tolerate high concentrations of imidacloprid (25,000 ppm), one of which isolate MBSB-12 showed the highest efficiency for imidacloprid tolerance and utilization as the sole carbon source. Morphological, biochemical, and 16 S ribosomal RNA gene sequencing-based characterization revealed the isolate as Pseudomonas plecoglossicida MBSB-12. The isolate reduced 87% of extractable imidacloprid from the treated soil in 90 days compared to the control soil (without bacterial treatment). High-Resolution Mass Spectrometry (HRMS) analysis indicated imidacloprid breakdown to comparatively less harmful products viz., imidacloprid guanidine olefin [m/z = 209.0510 (M + H)+], imidacloprid urea [m/z = 212.0502 (M + H)+] and a dechlorinated degraded product of imidacloprid with m/z value 175.0900 (M + H)+. Further investigation on the molecular machinery of P. plecoglossicida MBSB-12 involved in the degradation of imidacloprid is expected to provide a better understanding of the degradation pathway.
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Affiliation(s)
- Subangshi Borah
- Department of Agricultural Biotechnology, Faculty of Agriculture, Assam Agricultural University, 785013, Jorhat, Assam, India
| | - Dibya Jyoti Hazarika
- Department of Agricultural Biotechnology, Faculty of Agriculture, Assam Agricultural University, 785013, Jorhat, Assam, India
| | - Manjistha Baruah
- Department of Agricultural Biotechnology, Faculty of Agriculture, Assam Agricultural University, 785013, Jorhat, Assam, India
| | - Sudipta Sankar Bora
- DBT-North East Centre for Agricultural Biotechnology, Assam Agricultural University, 785013, Jorhat, Assam, India
| | - Manuranjan Gogoi
- Department of Tea Husbandry and Technology, Assam Agricultural University, 785013, Jorhat, Assam, India
| | - Robin Chandra Boro
- Department of Agricultural Biotechnology, Faculty of Agriculture, Assam Agricultural University, 785013, Jorhat, Assam, India
| | - Madhumita Barooah
- Department of Agricultural Biotechnology, Faculty of Agriculture, Assam Agricultural University, 785013, Jorhat, Assam, India.
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12
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Li R, Wang S, Chang J, Pan X, Dong F, Li Z, Zheng Y, Li Y. Insight into the uptake and metabolism of a new insecticide cyetpyrafen in plants. ENVIRONMENT INTERNATIONAL 2022; 169:107522. [PMID: 36137426 DOI: 10.1016/j.envint.2022.107522] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 08/19/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
As new agrochemicals are continuously introduced into agricultural systems, it is essential to investigate their uptake and metabolism by plants to better evaluate their fate and accumulation in crops and the subsequent risks to human exposure. In this study, the uptake and elimination kinetics and transformation of a novel insecticide, cyetpyrafen, in two model crops (lettuce and rice) were first evaluated by hydroponic experiments. Cyetpyrafen was rapidly taken up by plant roots and reached a steady state within 24 h, and it was preferentially accumulated in root parts with root concentration factors up to 2670 mL/g. An uptake mechanism study suggested that root uptake of cyetpyrafen was likely to be dominated by passive diffusion and was difficult to transport via xylem and phloem. Ten phase I and three phase II metabolites of cyetpyrafen were tentatively identified in the hydroponic-plant system through a nontarget screening strategy. The structures of two main metabolites (M-309 and M-391) were confirmed by synthesized standards. The metabolic pathways were proposed including hydroxylation, hydrolysis, dehydrogenation, dehydration and conjugation, which were assumed to be regulated by cytochrome P450, carboxylesterase, glycosyltransferase, glutathione S-transferases and peroxidase. Cyetpyrafen and its main metabolites (M-409, M-309 and M-391) were estimated to be harmful/toxic toward nontarget organisms by theoretical calculation. The high bioaccumulation and extensive transformation of cyetpyrafen highlighted the necessity for systematically assessing the crop uptake and metabolism of new agrochemicals.
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Affiliation(s)
- Runan Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Sijia Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Jinhe Chang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Xinglu Pan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Fengshou Dong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Zhiyuan Li
- Shanghai AB Sciex Analytical Instrument Trading Co, Ltd, Beijing 100015, PR China
| | - Yongquan Zheng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Yuanbo Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
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13
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Ma Q, Teng Y, Li C, Jiang L. Simultaneous quantitative determination of low-concentration ternary pesticide mixtures in wheat flour based on terahertz spectroscopy and BPNN. Food Chem 2022; 377:132030. [PMID: 34999452 DOI: 10.1016/j.foodchem.2021.132030] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 12/20/2021] [Accepted: 12/31/2021] [Indexed: 12/25/2022]
Abstract
Terahertz spectroscopy has been widely applied in the quantitative analysis of pesticides, however, it still encounters challenge pursuing high prediction accuracy in multi-component mixtures analysis with ultra-low concentration. Here, back propagation neural network (BPNN) was applied on the determination of ternary pesticide mixtures in wheat flour. By spectral pre-processing and model parameter optimization, high-quality spectra and complete network frame was achieved. On this basis, a novel wavelength selection method was presented and the most efficient peak width was given. Our method here achieved the optimal results, the correlation coefficient of prediction sets (RP) were 0.9913, 0.9948, 0.9923, and corresponding root mean square error (RMSE) were 0.0211%, 0.0176%, 0.0191%. More importantly, the concentration of pesticides in this study was extremely low compared with similar quantitative analysis based on terahertz spectroscopy, which can promote the application of this technology into actual production.
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Affiliation(s)
- Qingxiao Ma
- College of Information Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Yan Teng
- College of Information Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Chun Li
- College of Information Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Ling Jiang
- College of Information Science and Technology, Nanjing Forestry University, Nanjing 210037, China.
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14
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Physiological and Biochemical Variations in Celery by Imidacloprid and Fenpyroximate. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12094306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Pesticides are one of the abiotic stresses that have had an impact on the quality of agricultural products, especially in China. This study was the first to explore the soluble protein (SP) accumulation, peroxidase (POD) activity, and superoxide dismutase (SOD) activity variations in the stem and leaf of celery plants in the field after 2 h, 1, 3, 5, 8, 10, 14, 21, 28-day of spraying imidacloprid (IMI) and fenpyroximate (FEN) at various doses. The findings demonstrated that there was no notable difference in ultimate residues between 1 F and 10 F, and even with the 10 F treatment, the residues were not a concern. The SP accumulation alterations were mainly provoked by residues, which dramatically boosted in stem and eventually declined in leaf. The POD activity in celery was a dynamic process with a marked shift (enhanced and declined) when compared with non-pesticide treatment after 28 days. The field trial exhibited that the SOD was principally positioned in leaf whether pesticides were applied or not, which might be due to the distinctive structure of the celery leaf compared with the stem. No obvious linear relation between application dose and SOD activity was observed.
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15
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Zhang N, Huang L, Zhang Y, Liu L, Sun C, Lin X. Sulfur deficiency exacerbates phytotoxicity and residues of imidacloprid through suppression of thiol-dependent detoxification in lettuce seedlings. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 291:118221. [PMID: 34740294 DOI: 10.1016/j.envpol.2021.118221] [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: 07/14/2021] [Revised: 08/21/2021] [Accepted: 09/21/2021] [Indexed: 06/13/2023]
Abstract
Sulfur, an essential macronutrient, plays important roles in plant development and stress mitigation. Sulfur deficiency, a common problem in agricultural soils, may disturb plant stress resistance and xenobiotic detoxification. In the present study, the function and mechanism of limited sulfur nutrition on the residues and phtotoxicity of imidacloprid were investigated in lettuce plants. Sulfur deficiency significantly increased imidacloprid accumulation in lettuce tissues, exacerbated imidacloprid biological toxicity by enhancing the accumulation of toxic metabolites, like imidacloprid-olefin. Simultaneously, imidacloprid-induced detoxification enzymes including cytochromes P450, glutathione S-transferases (GSTs) and glycosyltransferases were inhibited under limited sulfur supply. On the other hand, sulfur deficiency further enhanced the generation of reactive oxygen species and exacerbated lipid peroxidation in lettuce tissues. Sulfur deficiency mainly reduced the abundance of thiol groups, which are essential redox modulators as well as xenobiotic conjugators, and significantly inhibited GSTs expression. These results clearly suggested that sulfur deficiency inhibited the synthesis of sulfur-containing compounds, leading to increased accumulation of pesticide residues and toxic metabolites as well as reduced detoxification capacity, consequently leading to oxidative damage to plants. Therefore, moderate sulfur supply in regions where neonicotinoid insecticides are intensively and indiscriminately used may be an efficient strategy to reduce pesticide residues and the potential risk to ecosystem.
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Affiliation(s)
- Nan Zhang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Lin Huang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yuxue Zhang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Lijuan Liu
- Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou, 310015, China
| | - Chengliang Sun
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou, 310058, China.
| | - Xianyong Lin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou, 310058, China
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16
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Zhou J, Dong C, An W, Zhao Q, Zhang Y, Li Z, Jiao B. Dissipation of imidacloprid and its metabolites in Chinese prickly ash (Zanthoxylum) and their dietary risk assessment. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 225:112719. [PMID: 34478976 DOI: 10.1016/j.ecoenv.2021.112719] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/17/2021] [Accepted: 08/26/2021] [Indexed: 06/13/2023]
Abstract
Dissipation of imidacloprid (IMI) and its metabolites (urea, olefin, 5-hydroxy, guanidine, 6-chloronicotinic acid) in Chinese prickly ash (CPA) was investigated using QuEChERS combined with UPLC-MS/MS. Good linearity (r2 ≥0.9963), accuracy (recoveries of 71.8-104.3%), precision (relative standard deviations of 0.9-9.4%), and sensitivity (limit of quantification ≤0.05 mg kg-1) were obtained. After application of IMI at dosage of 467 mg a.i. L-1 for three times with interval of 7 d, the dissipation dynamics of IMI in CPA followed first-order kinetics, with half-life of 6.48-7.29 d. IMI was the main compound in CPA, followed by urea and guanidine with small amounts of olefin, 5-hydroxy, and 6-chloronicotinic acid. The terminal residues of total IMI and its metabolites at PHI of 14-21 d were 0.16-7.80 mg kg-1 in fresh CPA and 0.41-10.44 mg kg-1 in dried CPA, with the median processing factor of 3.62. Risk assessment showed the acute (RQa) and chronic dietary risk quotients (RQc) of IMI in CPA were 0.020-0.083% and 0.052-0.334%, respectively. Based on the dietary structures of different genders and ages of Chinese people, the whole dietary risk assessment indicated that RQc was less than 100% for the general population except for 2- to 7-year-old children (RQc of 109.9%), implying the long-term risks of IMI were acceptable to common consumers except for children.
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Affiliation(s)
- Jie Zhou
- Citrus Research Institute, Southwest University & Chinese Academy of Agricultural Sciences, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; Quality Supervision and Testing Center for Citrus and Seedling, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China
| | - Chao Dong
- Citrus Research Institute, Southwest University & Chinese Academy of Agricultural Sciences, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; Quality Supervision and Testing Center for Citrus and Seedling, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China
| | - Wenjing An
- Citrus Research Institute, Southwest University & Chinese Academy of Agricultural Sciences, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; Quality Supervision and Testing Center for Citrus and Seedling, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China
| | - Qiyang Zhao
- Citrus Research Institute, Southwest University & Chinese Academy of Agricultural Sciences, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; Quality Supervision and Testing Center for Citrus and Seedling, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China
| | - Yaohai Zhang
- Citrus Research Institute, Southwest University & Chinese Academy of Agricultural Sciences, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; Quality Supervision and Testing Center for Citrus and Seedling, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China
| | - Zhixia Li
- Citrus Research Institute, Southwest University & Chinese Academy of Agricultural Sciences, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; Quality Supervision and Testing Center for Citrus and Seedling, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China
| | - Bining Jiao
- Citrus Research Institute, Southwest University & Chinese Academy of Agricultural Sciences, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; Quality Supervision and Testing Center for Citrus and Seedling, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China.
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17
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Fernandes CHM, Silva BF, Aquino JM. On the performance of distinct electrochemical and solar-based advanced oxidation processes to mineralize the insecticide imidacloprid. CHEMOSPHERE 2021; 275:130010. [PMID: 33676275 DOI: 10.1016/j.chemosphere.2021.130010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/09/2021] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
Water contamination by contaminants of emerging concern is one of the main challenges to be solved by our desired sustainable society. In the same time, different technologies for water treatment are becoming enough mature to be implemented. In this work, two different advanced oxidation processes (AOP) were investigated: i) electrochemical processes (electrochemical, photoassisted electrochemical, electro Fered-Fenton, and photo-electro Fered-Fenton - PEF-Fered) using a BDD and DSA® electrodes under UVA and UVC irradiation (9 W) and ii) solar-based AOP using four distinct oxidants (HOCl, H2O2, S2O82-, HSO5-) in the presence or absence of Fe2+ ions to oxidize and mineralize imidacloprid (IMD: 50 mg L-1) containing solutions. The PEF-Fered (1.0 mM Fe2+ and 50 mg L-1 h-1 H2O2) under UVA or UVC irradiation and HOCl/UVC (NaCl 17 mM) processes using a BDD and DSA® electrodes (10 mA cm -2), respectively, performed equally well to completely oxidize and mineralize (∼90%) IMD at the expense of only ∼0.3 kWh g-1. Low amounts and highly oxidized byproducts identified through liquid chromatography tandem mass spectrometry were observed for the HOCl/UVC process using a DSA® electrode. Concerning the solar-based AOP, all assessed oxidants (4 mM h-1) successfully oxidized IMD within 3 h of treatment, whereas only H2O2 and HOCl led to significant (∼60%) TOC abatement after 6 h treatment. The use of Fe2+ (0.5 or 1.0 mM) had no significant improvement in the oxidation and mineralization of IMD.
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Affiliation(s)
- Carlos H M Fernandes
- Universidade Federal de São Carlos, Departamento de Química, 13565-905, São Carlos, SP, Brazil
| | - Bianca F Silva
- Universidade Estadual Paulista, Instituto de Química de Araraquara, Departamento de Química Analítica, 14800-900, Araraquara, SP, Brazil
| | - José M Aquino
- Universidade Federal de São Carlos, Departamento de Química, 13565-905, São Carlos, SP, Brazil.
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18
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Kadlikova K, Vaclavikova M, Halesova T, Kamler M, Markovic M, Erban T. The investigation of honey bee pesticide poisoning incidents in Czechia. CHEMOSPHERE 2021; 263:128056. [PMID: 33297064 DOI: 10.1016/j.chemosphere.2020.128056] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/14/2020] [Accepted: 08/17/2020] [Indexed: 06/12/2023]
Abstract
Honey bees are major pollinators of crops with high economic value. Thus, bees are considered to be the most important nontarget organisms exposed to adverse effects of plant protection product use. The side effects of pesticides are one of the major factors often linked to colony losses. Fewer studies have researched acute poisoning incidents in comparison to the study of the sublethal effects of pesticides. Here, we compared pesticides in dead/dying bees from suspected poisoning incidents and the suspected crop source according to government protocols. Additionally, we analyzed live bees and bee bread collected from the brood comb to determine recent in-hive contamination. We used sites with no reports of poisoning for reference. Our analysis confirmed that not all of the suspected poisonings correlated with the suspected crop. The most important pesticides related to the poisoning incidents were highly toxic chlorpyrifos, deltamethrin, cypermethrin and imidacloprid and slightly toxic prochloraz and thiacloprid. Importantly, poisoning was associated with pesticide cocktail application. Almost all poisoning incidents were investigated in relation to rapeseed. Some sites were found to be heavily contaminated with several pesticides, including a reference site. However, other sites were moderately contaminated despite agricultural use, including rapeseed cultivation sites, which can influence the extent of pesticide use, including tank mixes and other factors. We suggest that the analysis of pesticides in bee bread and in bees from the brood comb is a useful addition to dead bee and suspected crop analysis in poisoning incidents to inform the extent of recent in-hive contamination.
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Affiliation(s)
- Klara Kadlikova
- Crop Research Institute, Drnovska 507/73, Prague 6-Ruzyne, CZ-161 06, Czechia; Czech University of Life Sciences, Faculty of Agrobiology, Food and Natural Resources, Department of Plant Protection, Prague 6-Suchdol, CZ-165 21, Czechia
| | - Marta Vaclavikova
- ALS Limited, ALS Czech Republic, Na Harfe 336/9, Prague 9-Vysocany, CZ-190 00, Czechia
| | - Tatana Halesova
- ALS Limited, ALS Czech Republic, Na Harfe 336/9, Prague 9-Vysocany, CZ-190 00, Czechia
| | - Martin Kamler
- Bee Research Institute at Dol, Maslovice-Dol 94, Libcice nad Vltavou, CZ-252 66, Czechia
| | - Martin Markovic
- Crop Research Institute, Drnovska 507/73, Prague 6-Ruzyne, CZ-161 06, Czechia
| | - Tomas Erban
- Crop Research Institute, Drnovska 507/73, Prague 6-Ruzyne, CZ-161 06, Czechia.
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19
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Chen Y, Nie E, Huang L, Lu Y, Gao X, Akhtar K, Ye Q, Wang H. Translocation and metabolism of imidacloprid in cabbage: Application of 14C-labelling and LC-QTOF-MS. CHEMOSPHERE 2021; 263:127928. [PMID: 32835975 DOI: 10.1016/j.chemosphere.2020.127928] [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] [Received: 03/27/2020] [Revised: 07/30/2020] [Accepted: 08/04/2020] [Indexed: 06/11/2023]
Abstract
Imidacloprid (IMI) is a widely used neonicotinoid insecticide effective against sucking and some chewing insects. Translocation and metabolism of IMI in plants are related to food safety. In this study, 14C-labeled IMI was used to investigate its translocation, transformation, radioactive IMI metabolites and possible metabolic pathways in cabbage. The amount of IMI accumulated in the edible part of cabbage accounted for 80.3-95.4% of the applied amounts by foliar application. There was a tendency to transport from edible parts to inedible parts. The proportions of extractable IMI decreased gradually from 92.4% to 83.0% in edible parts, greater than that in inedible parts over the experiment (0-19 days), while the bound residues showed an opposite trend. The half-life of IMI was determined as 33.0 and 63.0 days in the edible parts and whole plant, respectively. Five radioactive components including the parent IMI were detected by HPLC-LSC. The relative content of M1 was less than 0.01 mg kg-1, which was not required to identify according to the metabolic scheme proposed by the US Environmental Protection Agency. The metabolites N-nitro(1-6-chloro-3-pyridylmethyl)-4,5-dihydroxyimidazol-2-imine (M2), N-nitro(1-6-chloro-3-pyridylmethyl)-4/5-hydroxyimidazole-2-imine (M3) and 1/3-(1-6-chloro-3-pyridylmethyl)-2,4-imidazodione (M4) were identified by LC-QTOF-MS. The primary metabolism of IMI in cabbage included hydrolysis and oxidation. The residue level and daily intake values of IMI in cabbage were estimated to be 0.033-0.078 mg kg-1 and 9.56-20.01 ng d-1 kg-1, respectively, which were far below the maximum residue level and allowable daily intake values.
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Affiliation(s)
- Yan Chen
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou, 310058, China
| | - Enguang Nie
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou, 310058, China
| | - Lei Huang
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou, 310058, China
| | - Yuhui Lu
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou, 310058, China
| | - Xing Gao
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou, 310058, China
| | - Kashif Akhtar
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou, 310058, China
| | - Qingfu Ye
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou, 310058, China
| | - Haiyan Wang
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou, 310058, China.
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Wan Y, Han Q, Wang Y, He Z. Five degradates of imidacloprid in source water, treated water, and tap water in Wuhan, central China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 741:140227. [PMID: 32574922 DOI: 10.1016/j.scitotenv.2020.140227] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/09/2020] [Accepted: 06/12/2020] [Indexed: 06/11/2023]
Abstract
Imidacloprid (IMI) is one of the most applied neonicotinoid insecticides worldwide. The occurrence of its degradates such as desnitro-imidacloprid (DN-IMI), imidacloprid-urea (IMI-urea), and desnitro-imidacloprid-olefin (DN-IMI-olefin) in environment water and their fate during drinking water treatment were seldom documented. In this study, IMI and its degradates were determined in source water (the Yangtze River and its largest tributary, the Hanshui River), treated water, and tap water (n = 20, 20, and 169, respectively) in different seasons of 2019 in Wuhan, central China. Their occurrence, removal efficiency, and seasonal variations were evaluated. Advanced water treatment with ozone combined with activated carbon might remove target analytes efficiently but conventional water treatment cannot. IMI and its degradates were 100% detectable in the conventionally treated water samples in July. IMI and DN-IMI decreased while IMI-urea, DN-IMI-olefin, imidacloprid-olefin (IMI-olefin), and 5-hydroxy-imidacloprid (5-OH-IMI) increased during conventional drinking water treatment. IMI and its degradates were found in the tap water samples treated conventionally (range: 1.17-32.0 ng/L for IMI; 0.57-7.00 ng/L for DN-IMI; 0.58-4.50 ng/L for IMI-urea; 0.04-0.65 ng/L for DN-IMI-olefin; < method detection limit [MDL]-0.80 ng/L for IMI-olefin; < MDL-0.35 ng/L for 5-OH-IMI). The concentrations of DN-IMI and IMI-urea observed in this study were higher than those observed in North America. Sodium sulfite did not increase the levels of DN-IMI and IMI-urea in tap water samples in the present study. This is the first study to demonstrate the occurrence of DN-IMI and IMI-urea in water in China and the occurrence of DN-IMI-olefin, IMI-olefin, and 5-OH-IMI in water.
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Affiliation(s)
- Yanjian Wan
- Institute of Environmental Health, Wuhan Centers for Disease Control & Prevention, Wuhan, Hubei 430024, PR China.
| | - Qing Han
- Institute of Environmental Health, Wuhan Centers for Disease Control & Prevention, Wuhan, Hubei 430024, PR China
| | - Yao Wang
- Institute of Environmental Health, Wuhan Centers for Disease Control & Prevention, Wuhan, Hubei 430024, PR China
| | - Zhenyu He
- Institute of Environmental Health, Wuhan Centers for Disease Control & Prevention, Wuhan, Hubei 430024, PR China.
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21
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Adak T, Mahapatra B, Swain H, Patil NB, Pandi G GP, Gowda GB, Annamalai M, Pokhare SS, Meena K S, Rath PC, Jena M. Indigenous biobed to limit point source pollution of imidacloprid in tropical countries. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 272:111084. [PMID: 32854888 DOI: 10.1016/j.jenvman.2020.111084] [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] [Received: 04/27/2020] [Revised: 07/02/2020] [Accepted: 07/10/2020] [Indexed: 06/11/2023]
Abstract
Point pollution of pesticides originating from the washing of spraying machines could be controlled by biobed system and it is in use in temperate countries. The biobed system is yet to be established in tropical countries. An indigenous biobed system was prepared using local resources like rice straw, farm yard manures (FYM) and paddy field soil to suit the tropical climate. Lowermost 3 cm layer of the biobed system was filled with rice husk biochar to prevent leaching of pesticides from the system. This model system was tested with high doses of imidacloprid (178 mg/column), a commonly used pesticide against number of insect-pests in different crops, for its degradation. The bio-mix trapped a major part of the imidacloprid on the top most layer of the biobed column and only a very small part of imidacloprid recovered from the leachate. The biobed system could degrade 70.13% of applied imidacloprid within 15 days of the experiment and only 5.27% of the total pesticide recovered 90 days after incubation. Addition of biochar layer adsorbed imidacloprid from the outgoing leachate from the biobed column. Biomixture boosted microbial activity more particularly fungal population, which might be responsible for imidacloprid degradation. Microbial biomass carbon, and soil enzymes indicated faster dissipation of imidacloprid from the top layer of the biobed. This simple but efficient biobed system using local resources can fulfill the need of the small and marginal farmers of Asian countries for pesticide decontamination.
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Affiliation(s)
- Totan Adak
- Crop Protection Division, ICAR-National Rice Research Institute (formerly Central Rice Research Institute), Cuttack, 753006, India.
| | - Bibhab Mahapatra
- Crop Protection Division, ICAR-National Rice Research Institute (formerly Central Rice Research Institute), Cuttack, 753006, India
| | - Harekrushna Swain
- Crop Protection Division, ICAR-National Rice Research Institute (formerly Central Rice Research Institute), Cuttack, 753006, India
| | - Naveenkumar B Patil
- Crop Protection Division, ICAR-National Rice Research Institute (formerly Central Rice Research Institute), Cuttack, 753006, India
| | - Guru P Pandi G
- Crop Protection Division, ICAR-National Rice Research Institute (formerly Central Rice Research Institute), Cuttack, 753006, India
| | - G Basana Gowda
- Crop Protection Division, ICAR-National Rice Research Institute (formerly Central Rice Research Institute), Cuttack, 753006, India
| | - M Annamalai
- Crop Protection Division, ICAR-National Rice Research Institute (formerly Central Rice Research Institute), Cuttack, 753006, India
| | - Somnath S Pokhare
- Crop Protection Division, ICAR-National Rice Research Institute (formerly Central Rice Research Institute), Cuttack, 753006, India
| | - Sankari Meena K
- Crop Protection Division, ICAR-National Rice Research Institute (formerly Central Rice Research Institute), Cuttack, 753006, India
| | - P C Rath
- Crop Protection Division, ICAR-National Rice Research Institute (formerly Central Rice Research Institute), Cuttack, 753006, India
| | - Mayabini Jena
- Crop Protection Division, ICAR-National Rice Research Institute (formerly Central Rice Research Institute), Cuttack, 753006, India
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Zhang X, Chen L, Leng R, Zhang J, Zhou Y, Zhang Y, Yang S, He K, Huang B. Mechanism study of the beneficial effect of sodium selenite on metabolic disorders in imidacloprid-treated garlic plants. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 200:110736. [PMID: 32450438 DOI: 10.1016/j.ecoenv.2020.110736] [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] [Received: 02/10/2020] [Revised: 05/05/2020] [Accepted: 05/06/2020] [Indexed: 06/11/2023]
Abstract
As an effective neonicotinoid insecticide, imidacloprid (IMI) has been widely used in crop production, but its residue affects normal plant growth. Selenium (Se) is a non-essential mineral nutrient in higher plants, that acts as the active centre of glutathione peroxidase (GSH-Px), which removes harmful peroxides. In this study, we investigated the mechanism by which selenium improves the growth status of IMI-treated garlic plants through analyses of apparent morphology and antioxidant enzyme activity as well as the dynamic changes in nutrients and metabolites in the plants. The results showed that 80 μg/kg Na2SeO3 had a strong effect on alleviating the damage in garlic plants exposed to IMI (1.2 mg/kg) by increasing the absorption of mineral elements to enhance the synthesis of chlorophyll and antioxidant enzymes. A nontarget metabolomics analysis based on gas chromatography-mass spectrometry (GC-MS) indicated that the addition of Na2SeO3 to IMI-treated garlic could reconstruct the plant metabolic distribution by enhancing the nitrogen and indole metabolism, maintaining lower concentrations of secondary metabolites and maintaining the balance of the plant energy metabolism. Our study provides novel insights into the molecular mechanisms by which garlic plants responds to IMI exposure and suggests the use of selenium with IMI-contaminated plants as a solution for the advancement of sustainable agricultural pesticide use.
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Affiliation(s)
- Xiaoni Zhang
- School of Life Sciences, Anhui University, Hefei, 230601, China; Center for Stem Cell and Translational Medicine, Anhui University, Hefei, 230601, China
| | - Lingyun Chen
- School of Life Sciences, Anhui University, Hefei, 230601, China; Center for Stem Cell and Translational Medicine, Anhui University, Hefei, 230601, China
| | - Ruyue Leng
- School of Life Sciences, Anhui University, Hefei, 230601, China; Center for Stem Cell and Translational Medicine, Anhui University, Hefei, 230601, China
| | - Jian Zhang
- School of Life Sciences, Anhui University, Hefei, 230601, China; Center for Stem Cell and Translational Medicine, Anhui University, Hefei, 230601, China
| | - Yuhang Zhou
- School of Life Sciences, Anhui University, Hefei, 230601, China; Center for Stem Cell and Translational Medicine, Anhui University, Hefei, 230601, China
| | - Yuying Zhang
- Anhui Province Huaxin Biological Medical Co. Ltd., Jieshou, 236501, Anhui, China
| | - Silin Yang
- Anhui Province Huaxin Biological Medical Co. Ltd., Jieshou, 236501, Anhui, China
| | - Kan He
- School of Life Sciences, Anhui University, Hefei, 230601, China; Center for Stem Cell and Translational Medicine, Anhui University, Hefei, 230601, China.
| | - Bei Huang
- School of Life Sciences, Anhui University, Hefei, 230601, China; Center for Stem Cell and Translational Medicine, Anhui University, Hefei, 230601, China.
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Pang S, Lin Z, Zhang W, Mishra S, Bhatt P, Chen S. Insights Into the Microbial Degradation and Biochemical Mechanisms of Neonicotinoids. Front Microbiol 2020; 11:868. [PMID: 32508767 PMCID: PMC7248232 DOI: 10.3389/fmicb.2020.00868] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/14/2020] [Indexed: 12/22/2022] Open
Abstract
Neonicotinoids are derivatives of synthetic nicotinoids with better insecticidal capabilities, including imidacloprid, nitenpyram, acetamiprid, thiacloprid, thiamethoxam, clothianidin, and dinotefuran. These are mainly used to control harmful insects and pests to protect crops. Their main targets are nicotinic acetylcholine receptors. In the past two decades, the environmental residues of neonicotinoids have enormously increased due to large-scale applications. More and more neonicotinoids remain in the environment and pose severe toxicity to humans and animals. An increase in toxicological and hazardous pollution due to the introduction of neonicotinoids into the environment causes problems; thus, the systematic remediation of neonicotinoids is essential and in demand. Various technologies have been developed to remove insecticidal residues from soil and water environments. Compared with non-bioremediation methods, bioremediation is a cost-effective and eco-friendly approach for the treatment of pesticide-polluted environments. Certain neonicotinoid-degrading microorganisms, including Bacillus, Mycobacterium, Pseudoxanthomonas, Rhizobium, Rhodococcus, Actinomycetes, and Stenotrophomonas, have been isolated and characterized. These microbes can degrade neonicotinoids under laboratory and field conditions. The microbial degradation pathways of neonicotinoids and the fate of several metabolites have been investigated in the literature. In addition, the neonicotinoid-degrading enzymes and the correlated genes in organisms have been explored. However, few reviews have focused on the neonicotinoid-degrading microorganisms along with metabolic pathways and degradation mechanisms. Therefore, this review aimed to summarize the microbial degradation and biochemical mechanisms of neonicotinoids. The potentials of neonicotinoid-degrading microbes for the bioremediation of contaminated sites were also discussed.
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Affiliation(s)
- Shimei Pang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Ziqiu Lin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Wenping Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Sandhya Mishra
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Pankaj Bhatt
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Shaohua Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
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Erban T, Vaclavikova M, Tomesova D, Halesova T, Hubert J. tau-Fluvalinate and other pesticide residues in honey bees before overwintering. PEST MANAGEMENT SCIENCE 2019; 75:3245-3251. [PMID: 30983110 DOI: 10.1002/ps.5446] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 04/11/2019] [Accepted: 04/15/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Pesticides have often been linked to honey bee colony losses, which occur mainly over winter. In this study, we investigated residues in nine colonies at a model agricultural research site during the period before wintering. Moreover, we applied the acaricide tau-fluvalinate to the colonies via a strip formulation. The pesticide content was determined by UHPLC-QqQ-MS/MS in bees from brood comb initially collected in mid-September immediately prior to the start of tau-fluvalinate treatment and 30 later at the time of tau-fluvalinate strip removal. RESULTS In addition to commonly analyzed pesticides, we detected two plant growth regulators, chlormequat and metazachlor, in the bee colonies. Whereas thiacloprid, chlormequat and acetamiprid decreased after 30 days and contributed considerably to differences between sample time points, other pesticides appeared to be rather stable. Interestingly, we identified diazinon, which has been banned in the European Union since 2007. The residues of methiocarb sulfoxide and imidacloprid-urea in the absence of their parent compounds indicate historical environmental contamination that can be identified by the detection of residues in a bee colony. tau-Fluvalinate was detected only after the 30-day treatment at an average (± SD) concentration of 1.29 ± 1.93 ng/bee, ranging from 0.06 to 7.13 ng/bee. CONCLUSION The multidimensional behavior of pesticides in a bee colony was indicated. Although the research area is used for agriculture, the measured pesticide level was relatively low. The recorded concentrations of tau-fluvalinate should not be dangerous to bees, as the values were ∼ 200-5000-fold lower than the reported median lethal dose (LD50 ) values. © 2019 Society of Chemical Industry.
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Affiliation(s)
| | | | | | | | - Jan Hubert
- Crop Research Institute, Prague, Czechia
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25
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Wu C, Dong F, Mei X, Ning J, She D. Distribution, Dissipation, and Metabolism of Neonicotinoid Insecticides in the Cotton Ecosystem under Foliar Spray and Root Irrigation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:12374-12381. [PMID: 31613611 DOI: 10.1021/acs.jafc.9b04664] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The uptake, distribution, metabolism, and degradation of three neonicotinoid insecticides (NIs)-imidacloprid (IMI), acetamiprid (ACE), and thiamethoxam (THI) in different parts of cotton plants were investigated under field conditions. Insecticides were either applied by foliar spraying or root irrigation. Foliar application resulted in high tissue concentration (average tissue concentration ratio, TCR: 46.78-68.61% for leaves and 12.2-31.40% for flowers). The flowers showed high NI residual. The metabolism and trends of NIs in different parts of cotton were reported here for the first time. Metabolites, toxic to bees, were detected in the flowers. The translocation factor was around 0.004 for the spray treatment and 0.2-0.7 for the root irrigation treatment. The average root concentration factors of IMI, ACE, and THI were 0.838, 8.027, and 1.014, respectively, indicating that the three NIs can be transported from the soil to the plant. The high concentrations of NIs and their metabolites in flowers indicate exposure risk to pollinators, such as bees.
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Affiliation(s)
- Changcai Wu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection , Chinese Academy of Agricultural Sciences , Beijing 100193 , China
| | - Fengshou Dong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection , Chinese Academy of Agricultural Sciences , Beijing 100193 , China
| | - Xiangdong Mei
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection , Chinese Academy of Agricultural Sciences , Beijing 100193 , China
| | - Jun Ning
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection , Chinese Academy of Agricultural Sciences , Beijing 100193 , China
| | - Dongmei She
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection , Chinese Academy of Agricultural Sciences , Beijing 100193 , China
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Li J, Jiang Y, Li D. Determination of imidacloprid and its relevant metabolites in tomato using modified QuEChERS combined with ultrahigh-pressure liquid chromatography/Orbitrap tandem mass spectrometry. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:5211-5218. [PMID: 31038219 DOI: 10.1002/jsfa.9769] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/28/2019] [Accepted: 04/24/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Red tomato processing is one of the leading industries in Xinjiang, but also the largest export industry. In the process of tomato planting, imidacloprid (IMI) is often used to kill aphids, which poses the risk of pesticide residue. However, as daily consumables, pesticide residue on tomatoes may cause a potential threat to human health. Therefore the aims of this research were to study the residue dynamics of IMI pesticides in tomatoes by monitoring field experiments and to investigate the fate of IMI and its metabolites under Xinjiang field conditions. RESULTS In the field trials, three different doses of IMI were sprayed on tomato during the fruit setting stage. Degradation of IMI and residue behaviors of its metabolites at different stages were systemically traced and evaluated by ultrahigh-performance liquid chromatography coupled with tandem mass spectrometry (UHPLC/Q-Orbitrap MS). An accurate mass tool was used as the main method to identify the IMI metabolites. The improved method showed high efficiency in detecting IMI and 6-chlorinated nicotinic acid (6-CNA), being able to determine hazardous pesticides at trace levels. The fate of IMI in field tomato was investigated over 28 days. The metabolic mechanism of IMI in tomato is: OH products in the early stage and carbonyl products in the late stage. CONCLUSION Under natural conditions, pesticides in tomatoes will gradually decrease with time. In this process, olefin IMI is produced, but it is almost completely metabolized after 28 days. Therefore even 10 times the recommended dose of IMI pesticide will not endanger human health. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Junfang Li
- College of Chemical Engineering, Xinjiang Agricultural University, Urumqi, China
| | - Yuwei Jiang
- College of Chemical Engineering, Xinjiang Agricultural University, Urumqi, China
| | - Deqiang Li
- College of Chemical Engineering, Xinjiang Agricultural University, Urumqi, China
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Li Y, Long L, Ge J, Li H, Zhang M, Wan Q, Yu X. Effect of Imidacloprid Uptake from Contaminated Soils on Vegetable Growth. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:7232-7242. [PMID: 31184888 DOI: 10.1021/acs.jafc.9b00747] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In the present study, the effect of imidacloprid uptake from contaminated soils on the growth of leaf vegetable Shanghaiqing was investigated. The result showed that during 35-day exposure, the concentration of imidacloprid (IMI) was in the order of vegetable shoots > vegetable roots > soil, indicating that IMI was more readily concentrated in vegetable shoots than in roots. Moreover, the biomass of IMI-treated vegetable shoots was comparable to that of the controls with early exposure, but was higher than that of the controls after 7-day exposure, showing that the test concentration of IMI could stimulate vegetable growth. The plant metabolic analysis of vegetable shoots using LC-QTOF/MS revealed that IMI may cause oxidative stress to the plant shoots with early exposure; however, the stressful situation of IMI seems to be relieved with the increase of some substances (such as spermidine and phenylalanine) with late exposure. Moreover, the upregulation of N-rich amino acids (glutamine, aspartate, and arginine) suggested that the process of fixing inorganic nitrogen in the plant should be enhanced, possibly contributing to enhanced growth rates. Additionally, four IMI's metabolites were identified by using MS-FINDER software, and the distribution of three metabolites in vegetable tissues was compared.
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Affiliation(s)
- Yong Li
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base , Ministry of Science and Technology , 50 Zhongling Street , Nanjing 210014 , China
- Institute of Food Safety and Nutrition , Jiangsu Academy of Agricultural Sciences , 50 Zhongling Street , Nanjing 210014 , China
| | - Ling Long
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base , Ministry of Science and Technology , 50 Zhongling Street , Nanjing 210014 , China
- Institute of Food Safety and Nutrition , Jiangsu Academy of Agricultural Sciences , 50 Zhongling Street , Nanjing 210014 , China
| | - Jing Ge
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base , Ministry of Science and Technology , 50 Zhongling Street , Nanjing 210014 , China
- Institute of Food Safety and Nutrition , Jiangsu Academy of Agricultural Sciences , 50 Zhongling Street , Nanjing 210014 , China
- School of the Environment and Safety Enginerring , Jiangsu University , 301 Zhenjiang City University Road , Zhenjiang 212001 , China
| | - Haocong Li
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base , Ministry of Science and Technology , 50 Zhongling Street , Nanjing 210014 , China
- Institute of Food Safety and Nutrition , Jiangsu Academy of Agricultural Sciences , 50 Zhongling Street , Nanjing 210014 , China
| | - Meng Zhang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base , Ministry of Science and Technology , 50 Zhongling Street , Nanjing 210014 , China
- Institute of Food Safety and Nutrition , Jiangsu Academy of Agricultural Sciences , 50 Zhongling Street , Nanjing 210014 , China
| | - Qun Wan
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base , Ministry of Science and Technology , 50 Zhongling Street , Nanjing 210014 , China
- Institute of Food Safety and Nutrition , Jiangsu Academy of Agricultural Sciences , 50 Zhongling Street , Nanjing 210014 , China
| | - Xiangyang Yu
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base , Ministry of Science and Technology , 50 Zhongling Street , Nanjing 210014 , China
- Institute of Food Safety and Nutrition , Jiangsu Academy of Agricultural Sciences , 50 Zhongling Street , Nanjing 210014 , China
- School of the Environment and Safety Enginerring , Jiangsu University , 301 Zhenjiang City University Road , Zhenjiang 212001 , China
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Erban T, Sopko B, Talacko P, Harant K, Kadlikova K, Halesova T, Riddellova K, Pekas A. Chronic exposure of bumblebees to neonicotinoid imidacloprid suppresses the entire mevalonate pathway and fatty acid synthesis. J Proteomics 2019; 196:69-80. [DOI: 10.1016/j.jprot.2018.12.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 12/07/2018] [Accepted: 12/20/2018] [Indexed: 11/16/2022]
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Lin Y, Chen F, Lin S, Huang P, Akutse KS, Yu D, Gao Y. Imidacloprid Pesticide Regulates Gynaikothrips uzeli (Thysanoptera: Phlaeothripidae) Host Choice Behavior and Immunity Against Lecanicillium lecanii (Hypocreales: Clavicipitaceae). JOURNAL OF ECONOMIC ENTOMOLOGY 2018; 111:2069-2075. [PMID: 29992326 DOI: 10.1093/jee/toy209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Indexed: 06/08/2023]
Abstract
We attempted to develop an efficient management strategy against gall thrips (Gynaikothrips uzeli Zimmermann (Thysanoptera: Phlaeothripidae)) via the combined application of a systemic insecticide (imidacloprid) and an entomopathogenic fungus (Lecanicillium lecanii Zimmerman (Hypocreales: Clavicipitaceae)). The attraction of G. uzeli to Ficus microcarpa volatiles after imidacloprid treatment was weaker than for untreated plants, which could be due to modulation of volatile metabolite profiles by imidacloprid. The toxicity of L. lecanii against nymph and adult thrips was much higher for those that fed on plants treated with a 50% lethal concentration (LC50) of imidacloprid than for the controls. Phenoloxidase (PO) activity was significantly inhibited in treated G. uzeli, while hemocyte abundances were not different in treated and healthy individuals. Thus, imidacloprid impacted the PO-related humoral immunity of G. uzeli, but not their cellular immunity. Overall, F. microcarpa treated with imidacloprid at LC50 concentrations exhibited volatile profiles that decreased the attraction of G. uzeli and also indirectly increased the pathogenicity of L. lecanni by inhibiting the humoral immunity of gall thrips. The results reported here suggest that combined application of imidacloprid and L. lecanii could be used as a new integrated control strategy against gall thrips.
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Affiliation(s)
- Yongwen Lin
- Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian, P.R. China
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian, P.R. China
| | - Feng Chen
- Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian, P.R. China
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Fuzhou, Fujian, P.R. China
| | - Sheng Lin
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian, P.R. China
| | - Peng Huang
- Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian, P.R. China
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Fuzhou, Fujian, P.R. China
| | | | - Deyi Yu
- Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian, P.R. China
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Fuzhou, Fujian, P.R. China
| | - Yulin Gao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, P.R. China
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Sharma A, Kumar V, Yuan H, Kanwar MK, Bhardwaj R, Thukral AK, Zheng B. Jasmonic Acid Seed Treatment Stimulates Insecticide Detoxification in Brassica juncea L. FRONTIERS IN PLANT SCIENCE 2018; 9:1609. [PMID: 30450109 PMCID: PMC6224710 DOI: 10.3389/fpls.2018.01609] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 10/17/2018] [Indexed: 05/18/2023]
Abstract
The present study focused on assessing the effects of jasmonic acid (JA) seed treatment on the physiology of Brassica juncea seedlings grown under imidacloprid (IMI) toxicity. It has been observed that IMI application declined the chlorophyll content and growth of seedlings. However, JA seed treatment resulted in the significant recovery of chlorophyll content and seedling growth. Contents of oxidative stress markers like superoxide anion, hydrogen peroxide, and malondialdehyde were enhanced with IMI application, but JA seed treatment significantly reduced their contents. Antioxidative defense system was activated with IMI application which was further triggered after JA seed treatment. Activities of antioxidative enzymes and contents of non-enzymatic antioxidants were enhanced with the application of IMI as well as JA seed treatment. JA seed treatment also regulated the gene expression of various enzymes under IMI stress. These enzymes included respiratory burst oxidase (RBO), Ribulose-1,5-bisphosphate carboxylase/oxygenase (RUBISCO), NADH-ubiquinone oxidoreductase (NADH), carboxylesterase (CXE), chlorophyllase (CHLASE), cytochrome P450 monooxygenase (P450). JA seed treatment up-regulated the expressions of RUBISCO, NADH, CXE, and P450 under IMI toxicity. However, expressions of RBO and CHLASE were down-regulated in seedlings germinated from JA seed treatment and grown in presence of IMI. Seed soaking with JA also resulted in a significant reduction of IMI residues in B. juncea seedlings. The present study concluded that seed soaking with JA could efficiently reduce the IMI toxicity by triggering the IMI detoxification system in intact plants.
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Affiliation(s)
- Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Plant Stress Physiology Lab, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
- *Correspondence: Anket Sharma, Bingsong Zheng,
| | - Vinod Kumar
- Department of Botany & Environment Studies, DAV University, Jalandhar, India
| | - Huwei Yuan
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
| | | | - Renu Bhardwaj
- Plant Stress Physiology Lab, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Ashwani Kumar Thukral
- Plant Stress Physiology Lab, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Bingsong Zheng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- *Correspondence: Anket Sharma, Bingsong Zheng,
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Mohammed YMM, Badawy MEI. Biodegradation of imidacloprid in liquid media by an isolated wastewater fungus Aspergillus terreus YESM3. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2017; 52:752-761. [PMID: 28937920 DOI: 10.1080/03601234.2017.1356666] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In the present study, a new fungal strain capable of imidacloprid degradation was isolated from agricultural wastewater drain. The fungal strain of YESM3 was identified as Aspergillus terreus based on ITS1-5.8S rDNA-ITS2 gene sequence by PCR amplification of a 500 bp sequence. Screening of A. terreus YESM3 to the insecticide imidacloprid tolerance was achieved by growing fungus in Czapek Dox agar for 6 days at 28°C. High values (1.13 and 0.94 cm cm-1) of tolerance index (TI) were recorded at 25 and 50 mg L-1 of imidacloprid, respectively in the presence and absence of sucrose. However, at 400 mg L-1 the fungus did not grow. Effects of the imidacloprid concentration, pH, and inoculum size on the biodegradation percentage were tested using Box-Behnken statistical design and the biodegradation was monitored by HPLC analysis at different time intervals. Box-Behnken results indicated that optimal conditions for biodegradation were at pH 4 and two fungal discs (10 mm diameter) in the presence of 61.2 mg L-1 of imidacloprid. A. terreus YESM3 strain was capable of degrading 85% of imidacloprid 25 mg L-1 in Czapek Dox broth medium at pH 4 and 28°C for 6 days under static conditions. In addition, after 20 days of inoculation, biodegradation recorded 96.23% of 25 mg L-1 imidacloprid. Degradation kinetics showed that the imidacloprid followed the first order kinetics with half-life (t50) of 1.532 day. Intermediate product identified as 6-chloronicotinic acid (6CNA) as one of the major metabolites during degradation of imidacloprid by using HPLC. Thus, A. terreus YESM3 showed a potential to reduce pollution by pesticides and toxicity in the effected environment. However, further studies should be conducted to understand the biodegradation mechanism of this pesticide in liquid media.
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Affiliation(s)
- Youssef M M Mohammed
- a Department of Botany and Microbiology, Faculty of Science , Damanhour University , Damanhour , Egypt
| | - Mohammed E I Badawy
- b Department of Pesticide Chemistry and Technology, Faculty of Agriculture , Alexandria University , Alexandria , Egypt
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