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Chen R, Liu T, Deng D, Huang L, Min M, Xiao X. Review: Progress towards research on the toxicology of pyrimethanil. Comp Biochem Physiol C Toxicol Pharmacol 2024; 283:109940. [PMID: 38777003 DOI: 10.1016/j.cbpc.2024.109940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/22/2024] [Accepted: 05/16/2024] [Indexed: 05/25/2024]
Abstract
Pyrimethanil is a persistent environmental pollutant that poses a significant threat to human health. In this review, we summarize the fungicidal mechanism of pyrimethanil and its toxicological effects on aquatic organisms and mammals, as well as its impact on growth and development as an endocrine disruptor. Additionally, we investigate the metabolism of pyrimethanil in mammals and its molecular mechanism in the occurrence of Alzheimer's disease. Furthermore, this review outlines the influence of climate change on the toxicity of pyrimethanil, emphasizing the need to consider the impact of mixtures of multiple compounds on human health. Finally, we propose several promising future directions for pyrimethanil research, believing that there is a better understanding of the interaction between pyrimethanil and organisms, as well as the development of techniques to remove pyrimethanil, may be the best approach to eliminating the threat posed by this compound.
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Affiliation(s)
- Risi Chen
- Ganzhou Key Laboratory for Drug Screening and Discovery, School of Geography and Environmental Engineering, Gannan Normal University, Ganzhou 341000, Jiangxi, China
| | - Tingting Liu
- Ganzhou Key Laboratory for Drug Screening and Discovery, School of Geography and Environmental Engineering, Gannan Normal University, Ganzhou 341000, Jiangxi, China
| | - Dan Deng
- Gannan Health Vocational College, Ganzhou 341000, Jiangxi, China
| | - Linzhe Huang
- Ganzhou Key Laboratory for Drug Screening and Discovery, School of Geography and Environmental Engineering, Gannan Normal University, Ganzhou 341000, Jiangxi, China
| | - Meixin Min
- Ganzhou Key Laboratory for Drug Screening and Discovery, School of Geography and Environmental Engineering, Gannan Normal University, Ganzhou 341000, Jiangxi, China
| | - Xiaoping Xiao
- Ganzhou Key Laboratory for Drug Screening and Discovery, School of Geography and Environmental Engineering, Gannan Normal University, Ganzhou 341000, Jiangxi, China; Provincal Key Laboratory of Low-Carbon Solid Waste Recycling, Gannan Normal University, Ganzhou 341000, Jiangxi, China; Jiangxi Province Key Laboratory of Synthetic Pharmaceutical Chemistry, Gannan Normal University, Ganzhou 341000, Jiangxi, China.
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2
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Shu X, Guo P, Zhang G, Zhang W, Hu H, Peng J, Xiong Y, Ma B, Lai W. Novel litchi-like Au-Ag nanospheres driven dual-readout lateral flow immunoassay for sensitive detection of pyrimethanil. Food Chem 2024; 450:139380. [PMID: 38640535 DOI: 10.1016/j.foodchem.2024.139380] [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: 01/04/2024] [Revised: 04/10/2024] [Accepted: 04/13/2024] [Indexed: 04/21/2024]
Abstract
Pyrimethanil (PYR) is a fungicide that is harmful to consumers when present in foods at concentrations greater than maximum permitted residue levels. High-performance immunoprobes and dual-readout strategy may be useful for constructing sensitive lateral flow immunoassay (LFIA). Herein, the prepared litchi-like Au-Ag bimetallic nanospheres (LBNPs) exhibited high mass extinction coefficients and fluorescence quenching constants. Benefiting from LBNPs and dual-readout mode, the limits of detection of LBNPs-CM-LFIA and LBNPs-FQ-LFIA for PYR were 0.957 and 0.713 ng mL-1, which were 2.54- and 3.41-fold lower than that of gold nanoparticles-based LFIA, respectively. The limits of quantitation of LBNPs-CM-LFIA and LBNPs-FQ-LFIA were 3.740 and 1.672 ng mL-1, respectively. LBNPs-LFIA was applied to detect PYR in cucumber and grape samples with satisfactory recovery (90%-111%). LBNPs-LFIA showed good agreement with LC-MS/MS for the detection of PYR in the samples. Accordingly, this sensitive and accurate dual-readout LFIA based on LBNPs can be effectively applied for food safety.
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Affiliation(s)
- Xinhui Shu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Ping Guo
- Jiangxi General Institute of Testing and Certification, Nanchang 330029, China
| | - Gan Zhang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Wei Zhang
- Jiangxi General Institute of Testing and Certification, Nanchang 330029, China
| | - Hong Hu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Juan Peng
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Yonghua Xiong
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Bingfeng Ma
- Jiangxi General Institute of Testing and Certification, Nanchang 330029, China.
| | - Weihua Lai
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
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3
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Li S, Yu Y, Xie P, Zhu X, Yang C, Wang L, Zhang S. Antifungal Activities of L-Methionine and L-Arginine Treatment In Vitro and In Vivo against Botrytis cinerea. Microorganisms 2024; 12:360. [PMID: 38399764 PMCID: PMC10891807 DOI: 10.3390/microorganisms12020360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 02/01/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
Gray mold caused by Botrytis cinerea is a common postharvest fungal disease in fruit and vegetables. The prevention and treatment of postharvest gray mold has been one of the hot research issues addressed by researchers. This study aimed to investigate the effect of L-methionine and L-arginine on Botrytis cinerea in vitro and on cherry tomato fruit. The results of the in vitro experiment showed that L-methionine and L-arginine had significant inhibitory effects on the mycelial growth and spore germination of Botrytis cinerea, and the inhibitory effects were enhanced with increasing L-methionine or L-arginine concentration. In addition, L-methionine and L-arginine treatment increased the leakage of Botrytis cinerea electrolytes, proteins and nucleic acids. The experiment involving propidium iodide staining and malondialdehyde content assay also confirmed that L-methionine and L-arginine treatment could lead to cell membrane rupture and lipid peroxidation. The results of scanning electron microscopy further verified that the morphology of hyphae was damaged, deformed, dented and wrinkled after treatment with L-methionine or L-arginine. Fruit inoculation experiments displayed that L-methionine and L-arginine treatments significantly inhibited the occurrence and development of gray mold in postharvest cherry tomato. Therefore, treatment with L-methionine or L-arginine might be an effective means to control postharvest gray mold in fruit and vegetables.
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Affiliation(s)
| | | | | | | | | | | | - Shaoying Zhang
- College of Food Science, Shanxi Normal University, Taiyuan 030031, China; (S.L.); (P.X.); (C.Y.)
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4
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Zelalem W, Anteneh W, Mingist M, Kibret M, Adgo E, Erarto F, De Rop J, De Cock A, Spanoghe P, Goethals PLM, Nyssen J, Verleyen E, De Vocht A. Pesticide concentration in three selected fish species and human health risk in the Lake Tana sub-basin, Ethiopia. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:988. [PMID: 37490187 DOI: 10.1007/s10661-023-11594-y] [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: 03/08/2023] [Accepted: 07/10/2023] [Indexed: 07/26/2023]
Abstract
Pesticide use has increased in the Lake Tana sub-basin due to increased agricultural activity, potentially endangering nontargeted organisms. To assess its potential impact on fish health and fish-consuming human populations, pesticide concentrations in the fillet and liver tissue of three fish species, namely Labeobarbus megastoma, Labeobarbus tsanensis, and Oreochromis niloticus, were investigated in Lake Tana. Fish samples were taken from the lake near the rivers of Ribb and Gumara, which flow through agricultural areas where considerable amounts of pesticides have been applied. A total of 96 fish samples were collected. Liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) revealed the presence of ten pesticides. Pyrimethanil was frequently detected in 96% of liver and 65% of fillet samples at a median concentration of 33.9 µg kg-1 and 19.7 µg kg-1, respectively. The highest concentration of pyrimethanil was found in L. megastoma (1850.0 µg kg-1). Labeobarbus megastoma also had the highest concentration of oxamyl (507.0 µg kg-1) and flazasulfuron (60.1 µg kg-1) detected in the liver tissue. The highest concentration of carbaryl (56.5 µg kg-1) was found in the liver tissue of O. niloticus. Fish tissue samples from the two study sites contained pyrimethanil, oxamyl, carbaryl, and flazasulfuron. Only pyrimethanil showed a statistically significant difference between the two sites and the species L. megastoma and L. tsanensis. The amounts of pesticides found in the fish species pose no direct risk to the health of fish consumer human population. However, the results show that the lake ecosystem needs immediate attention and regular monitoring of the rising pesticide usage in the lake watershed.
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Affiliation(s)
- Wondie Zelalem
- UHasselt, Centre for Environmental Sciences, 3590, Diepenbeek, Agoralaan, Belgium.
- Department of Fisheries and Aquatic Sciences, Bahir Dar University, Bahir Dar, Ethiopia.
| | - Wassie Anteneh
- Intergovernmental Authority On Development (IGAD), Djibouti, Djibouti
| | - Minwyelet Mingist
- Department of Fisheries and Aquatic Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Mulugeta Kibret
- Department of Biology, Bahir Dar University, Bahir Dar, Ethiopia
| | - Enyew Adgo
- Department of Natural Resource Management, Bahir Dar University, Bahir Dar, Ethiopia
| | - Felegush Erarto
- Department of Fisheries and Aquatic Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Jasmine De Rop
- Department of Plants and Crops, Ghent University, Ghent, Belgium
| | - Andrée De Cock
- Department of Animal Sciences and Aquatic Ecology, Ghent University, Ghent, Belgium
| | - Pieter Spanoghe
- Department of Plants and Crops, Ghent University, Ghent, Belgium
| | - Peter L M Goethals
- Department of Animal Sciences and Aquatic Ecology, Ghent University, Ghent, Belgium
| | - Jan Nyssen
- Department of Geography, Ghent University, Ghent, Belgium
| | - Elie Verleyen
- Department of Biology, Ghent University, Ghent, Belgium
| | - Alain De Vocht
- UHasselt, Centre for Environmental Sciences, 3590, Diepenbeek, Agoralaan, Belgium
- PXL University College, Hasselt, Belgium
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5
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Chen S, Zhang M, Feng S, Gong C, Zhou Y, Xing L, He B, Wu Y, Xue W. Design, synthesis and biological activity of chalcone derivatives containing pyridazine. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
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6
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Laicher D, Benkendorff K, White S, Conrad S, Woodrow RL, Butcherine P, Sanders CJ. Pesticide occurrence in an agriculturally intensive and ecologically important coastal aquatic system in Australia. MARINE POLLUTION BULLETIN 2022; 180:113675. [PMID: 35642798 DOI: 10.1016/j.marpolbul.2022.113675] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 04/15/2022] [Accepted: 04/16/2022] [Indexed: 06/15/2023]
Abstract
Coastal agricultural practices are often located in catchments upstream of ecologically important aquatic systems. Here, we investigate the occurrence of pesticides in a coastal creek flowing into a habitat-protected area within the Solitary Islands Marine Park, Australia. Water samples were collected from six sites along a creek transect during three sampling periods. Samples were analysed for 171 pesticide analytes, including organochlorines, organophosphates, herbicides, and fungicides. Five insecticides, two herbicides, and two fungicides were detected. The neonicotinoid imidacloprid was detected at 5 out of 6 sites, with concentrations reaching 294 μg L-1, the highest yet detected in Australian waterways. The organophosphate insecticide dimethoate was detected at 4 sites, which occurred at the 2nd highest detected concentration in the study (12.8 μg L-1). The presence of these pesticides in the aquatic environment downstream of horticulture in this and other regions may have serious implications for stream biota and ecologically important marine ecosystems.
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Affiliation(s)
- Dylan Laicher
- National Marine Science Centre, Faculty of Science and Engineering, Southern Cross University, Coffs Harbour, NSW, Australia.
| | - Kirsten Benkendorff
- National Marine Science Centre, Faculty of Science and Engineering, Southern Cross University, Coffs Harbour, NSW, Australia
| | - Shane White
- National Marine Science Centre, Faculty of Science and Engineering, Southern Cross University, Coffs Harbour, NSW, Australia
| | - Steve Conrad
- National Marine Science Centre, Faculty of Science and Engineering, Southern Cross University, Coffs Harbour, NSW, Australia
| | - Rebecca L Woodrow
- National Marine Science Centre, Faculty of Science and Engineering, Southern Cross University, Coffs Harbour, NSW, Australia
| | - Peter Butcherine
- National Marine Science Centre, Faculty of Science and Engineering, Southern Cross University, Coffs Harbour, NSW, Australia
| | - Christian J Sanders
- National Marine Science Centre, Faculty of Science and Engineering, Southern Cross University, Coffs Harbour, NSW, Australia
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Mello JLDAS, Colombo V, Gorni GR, Corbi JJ. Effects of pyrimethanil fungicide on Chironomidae community structure. AN ACAD BRAS CIENC 2021; 93:e20200860. [PMID: 34550199 DOI: 10.1590/0001-3765202120200860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 02/16/2021] [Indexed: 11/22/2022] Open
Abstract
The use of agrochemicals in agriculture may impact aquatic ecosystems, particularly influencing the stream insect communities. Among aquatic insects, the family Chironomidae is the most abundant and species-diverse insect group found in freshwater ecosystems. However, in the southern hemisphere, studies with Chironomidae are still sparse, compared to Europe and North America. The present study evaluates the responses of Chironomidae species (Insecta: Diptera) to pyrimethanil fungicide in a mesocosm experiment. Water contamination and chironomid community were monitored over 10 months. After five months of monitoring, the pyrimethanil fungicide was completely degraded and there was a statistically significant increase in the Margalef Richness and Shannon-Wiener Index (H') in the control units when compared with the contaminated mesocosms (p = 0.003). Our results point out that the utilization of agrochemicals can be a harmful factor influencing negatively the Chironomidae populations. This finding has key implications for insect conservation strategies and ecological management environments.
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Affiliation(s)
- José Leonardo DA Silva Mello
- Universidade de São Paulo, Departamento de Hidráulica e Saneamento, Escola de Engenharia de São Carlos (EESC), Av. Trabalhador Sãocarlense, 400, 13566-590 São Carlos, SP, Brazil
| | - Vanessa Colombo
- Universidade de São Paulo, Departamento de Hidráulica e Saneamento, Escola de Engenharia de São Carlos (EESC), Av. Trabalhador Sãocarlense, 400, 13566-590 São Carlos, SP, Brazil.,Universidade de Araraquara, Programa de Pós-Graduação em Desenvolvimento Territorial e Meio Ambiente, Rua Carlos Gomes, 1338, Centro, 14801-340 Araraquara, SP, Brazil
| | - Guilherme Rossi Gorni
- Universidade de São Paulo, Departamento de Hidráulica e Saneamento, Escola de Engenharia de São Carlos (EESC), Av. Trabalhador Sãocarlense, 400, 13566-590 São Carlos, SP, Brazil.,Universidade de Araraquara, Programa de Pós-Graduação em Desenvolvimento Territorial e Meio Ambiente, Rua Carlos Gomes, 1338, Centro, 14801-340 Araraquara, SP, Brazil
| | - Juliano J Corbi
- Universidade de São Paulo, Departamento de Hidráulica e Saneamento, Escola de Engenharia de São Carlos (EESC), Av. Trabalhador Sãocarlense, 400, 13566-590 São Carlos, SP, Brazil
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Shen C, Zhu K, Ruan J, Li J, Wang Y, Zhao M, He C, Zuo Z. Screening of potential oestrogen receptor α agonists in pesticides via in silico, in vitro and in vivo methods. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 270:116015. [PMID: 33352482 DOI: 10.1016/j.envpol.2020.116015] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/28/2020] [Accepted: 11/05/2020] [Indexed: 06/12/2023]
Abstract
In modern agricultural management, the use of pesticides is indispensable. Due to their massive use worldwide, pesticides represent a latent risk to both humans and the environment. In the present study, 1056 frequently used pesticides were screened for oestrogen receptor (ER) agonistic activity by using in silico methods. We found that 72 and 47 pesticides potentially have ER agonistic activity by the machine learning methods random forest (RF) and deep neural network (DNN), respectively. Among endocrine-disrupting chemicals (EDCs), 14 have been reported as EDCs or ER agonists by previous studies. We selected 3 reported and 7 previously unreported pesticides from 76 potential ER agonists to further assess ERα agonistic activity. All 10 selected pesticides exhibited ERα agonistic activity in human cells or zebrafish. In the dual-luciferase reporter gene assays, six pesticides exhibited ERα agonistic activity. Additionally, nine pesticides could induce mRNA expression of the pS2 and NRF1 genes in MCF-7 cells, and seven pesticides could induce mRNA expression of the vtg1 and vtg2 genes in zebrafish. Importantly, the remaining 48 out of 76 potential ER agonists, none of which have previously been reported to have endocrine-disrupting effects or oestrogenic activity, should be of great concern. Our screening results can inform environmental protection goals and play an important role in environmental protection and early warnings to human health.
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Affiliation(s)
- Chao Shen
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361005, China
| | - Kongyang Zhu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361005, China
| | - Jinpeng Ruan
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361005, China
| | - Jialing Li
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361005, China
| | - Yi Wang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361005, China
| | - Meirong Zhao
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Chengyong He
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361005, China
| | - Zhenghong Zuo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361005, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, Fujian, 361005, China.
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Vonk JA, Kraak MHS. Herbicide Exposure and Toxicity to Aquatic Primary Producers. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 250:119-171. [PMID: 32945954 DOI: 10.1007/398_2020_48] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The aim of the present review was to give an overview of the current state of science concerning herbicide exposure and toxicity to aquatic primary producers. To this end we assessed the open literature, revealing the widespread presence of (mixtures of) herbicides, inevitably leading to the exposure of non-target primary producers. Yet, herbicide concentrations show strong temporal and spatial variations. Concerning herbicide toxicity, it was concluded that the most sensitive as well as the least sensitive species differed per herbicide and that the observed effect concentrations for some herbicides were rather independent from the exposure time. More extensive ecotoxicity testing is required, especially considering macrophytes and marine herbicide toxicity. Hence, it was concluded that the largest knowledge gap concerns the effects of sediment-associated herbicides on primary producers in the marine/estuarine environment. Generally, there is no actual risk of waterborne herbicides to aquatic primary producers. Still, median concentrations of atrazine and especially of diuron measured in China, the USA and Europe represented moderate risks for primary producers. Maximum concentrations due to misuse and accidents may even cause the exceedance of almost 60% of the effect concentrations plotted in SSDs. Using bioassays to determine the effect of contaminated water and sediment and to identify the herbicides of concern is a promising addition to chemical analysis, especially for the photosynthesis-inhibiting herbicides using photosynthesis as endpoint in the bioassays. This review concluded that to come to a reliable herbicide hazard and risk assessment, an extensive catch-up must be made concerning macrophytes, the marine environment and especially sediment as overlooked and understudied environmental compartments.
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Affiliation(s)
- J Arie Vonk
- Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands.
| | - Michiel H S Kraak
- Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
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Complete Genome Sequence of Sphingobacterium psychroaquaticum Strain SJ-25, an Aerobic Bacterium Capable of Suppressing Fungal Pathogens. Curr Microbiol 2019; 77:115-122. [PMID: 31646352 DOI: 10.1007/s00284-019-01789-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 10/04/2019] [Indexed: 01/22/2023]
Abstract
Using antagonistic bacterium is an effective method to control plant disease by fungal pathogens. An aerobic bacterium designated SJ-25, capable of suppressing Fusarium graminearum, Exserohilum turcicum, Pythium aphanidermatum, and Cochliobolus sativus, was isolated from farmland soil. The phylogenetic analysis revealed that strain SJ-25 belongs to the species of Sphingobacterium psychroaquaticum. The genome of strain SJ-25 consists of a 4,396,535-bp chromosome with a G+C content of 41.7 mol%; including 3696 CDS, 64 tRNA genes and six rRNA operons. Genomic analysis revealed that its genome contains multiple genes responsible for biosynthesis of siderophore, methyl 4-hydroxybenzoate, chitinase, giving strain SJ-25 the antagonistic ability on fungi pathogen. Strain SJ-25 harbors sets genes responsible for production of 2, 3-butanediol and salicylic acid, which could elicit the induced systemic resistance of the host plant. This genome sequence could be used as a basis material for further exploration of antagonistic mechanisms on fungi, widening our understanding of the ecological role of the genus Sphingobacterium in farmland ecosystem.
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11
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van der Linden P, Shinn C, Moreira-Santos M, Oehlmann J, Ribeiro R, Müller R. Aquatic mesocosms exposed to a fungicide in warm and cold temperate European climate zones: Long-term macroinvertebrate response. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 681:133-142. [PMID: 31103651 DOI: 10.1016/j.scitotenv.2019.05.112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 05/08/2019] [Accepted: 05/08/2019] [Indexed: 06/09/2023]
Abstract
At present, the European Union legislation facilitates the use of similar pesticides among European Member States, thereby assuming that biodiversity and ecosystems have equal sensitivities to contaminants throughout the whole of Europe. However, with this assumption, fundamental environmental and biological differences between climatic zones are being ignored in Environmental Risk Assessment. Such differences may strongly influence the behaviour of contaminants, their effects on biodiversity and on the natural functioning of ecosystems. Furthermore, toxicity testing in European ecoregions other than cold-temperate has largely depended on standardized tests using cold-temperate species and conditions, which may lead to a false estimation of risks to organisms from other ecoregions. The present study aim was to determine the response of freshwater macroinvertebrate communities to the fungicide pyrimethanil by conducting aquatic mesocosm experiments in two different ecoregions with different climates: cold-temperate (Frankfurt, Germany) and warm-temperate (Coimbra, Portugal). The results indicate that the community in the cold-temperate climate was more sensitive to the fungicide in comparison to the warm-temperate community. This difference was most likely related to a different rate of fungicide disappearance, which was slower in the colder climate. Based upon our results we discuss important implications for improving Environmental Risk Assessment across climate zones and under present-day global climate change scenarios.
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Affiliation(s)
- P van der Linden
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, Coimbra 3000-456, Portugal.
| | - C Shinn
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, Coimbra 3000-456, Portugal
| | - M Moreira-Santos
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, Coimbra 3000-456, Portugal
| | - J Oehlmann
- Goethe University, Department Aquatic Ecotoxicology, Max von Laue straße 13, Frankfurt 60438, Germany
| | - R Ribeiro
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, Coimbra 3000-456, Portugal
| | - R Müller
- Goethe University, Institute of Occupational Social and Environmental Medicine, Theodor Stern Kai 7, Frankfurt 60590, Germany; Institute of Tropical Medicine, Nationalestraat 155, Antwerp 2000, Belgium
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