1
|
Alaoui A, Christ F, Silva V, Vested A, Schlünssen V, González N, Gai L, Abrantes N, Baldi I, Bureau M, Harkes P, Norgaard T, Navarro I, de la Torre A, Sanz P, Martínez MÁ, Hofman J, Pasković I, Pasković MP, Glavan M, Lwanga EH, Aparicio VC, Campos I, Alcon F, Contreras J, Mandrioli D, Sgargi D, Scheepers PTJ, Ritsema C, Geissen V. Identifying pesticides of high concern for ecosystem, plant, animal, and human health: A comprehensive field study across Europe and Argentina. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 948:174671. [PMID: 39004368 DOI: 10.1016/j.scitotenv.2024.174671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 06/30/2024] [Accepted: 07/08/2024] [Indexed: 07/16/2024]
Abstract
The widespread and excessive use of pesticides in modern agricultural practices has caused pesticide contamination of the environment, animals, and humans, with confirmed serious health consequences. This study aimed to identify the 20 most critical substances based on an analysis of detection frequency (DF) and median concentrations (MC) across environmental and biological matrices. A sampling campaign was conducted across 10 case study sites in Europe and 1 in Argentina, each encompassing conventional and organic farming systems. We analysed 209 active substances in a total of 4609 samples. All substances ranked among the 20 most critical were detected in silicon wristbands worn by humans and animals and indoor dust from both farming systems. Five of them were detected in all environmental matrices. Overall, higher values of DF and MC, including in the blood plasma of animals and humans, were recorded in samples of conventional compared to organic farms. The differences between farming systems were greater in the environmental samples and less in animal and human samples. Ten substances were detected in animal blood plasma from conventional farms and eight in animal blood plasma from organic farms. Two of those, detected in both farming systems, are classified as hazardous for mammals (acute). Five substances detected in animal blood plasma from organic farms and seven detected in animal blood plasma from conventional farms are classified as hazardous for mammals (dietary). Three substances detected in human blood plasma are classified as carcinogens. Seven of the substances detected in human blood plasma are classified as endocrine disruptors. Six substances, of which five were detected in human blood plasma, are hazardous for reproduction/development. Efforts are needed to elucidate the unknown effects of mixtures, and it is crucial that such research also considers biocides and banned substances, which constitute a baseline of contamination that adds to the effect of substances used in agriculture.
Collapse
Affiliation(s)
- Abdallah Alaoui
- Institute of Geography, University of Bern, Hallerstrasse 12, 3012 Bern, Switzerland.
| | - Florian Christ
- Institute of Geography, University of Bern, Hallerstrasse 12, 3012 Bern, Switzerland
| | - Vera Silva
- Soil Physics and Land Management Group, Wageningen University & Research, Wageningen, Netherlands
| | - Anne Vested
- Department of Public Health, Research unit for Environment, Occupation and Health, Danish Ramazzini Centre, Aarhus University, Aarhus, Denmark
| | - Vivi Schlünssen
- Department of Public Health, Research unit for Environment, Occupation and Health, Danish Ramazzini Centre, Aarhus University, Aarhus, Denmark
| | - Neus González
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201 Reus, Catalonia, Spain
| | - Lingtong Gai
- Soil Physics and Land Management Group, Wageningen University & Research, Wageningen, Netherlands
| | - Nelson Abrantes
- CESAM and Department of Biology, University of Aveiro, Portugal
| | - Isabelle Baldi
- Univ. Bordeaux, INSERM, BPH, U1219, F-33000 Bordeaux, France
| | - Mathilde Bureau
- Univ. Bordeaux, INSERM, BPH, U1219, F-33000 Bordeaux, France
| | - Paula Harkes
- Soil Physics and Land Management Group, Wageningen University & Research, Wageningen, Netherlands
| | - Trine Norgaard
- Department of Agroecology, Aarhus University, Blichers Allé 20, 8830 Tjele, Denmark
| | - Irene Navarro
- Unit of POPs and Emerging Pollutants in Environment, Department of Environment, CIEMAT, Madrid, Spain
| | - Adrián de la Torre
- Unit of POPs and Emerging Pollutants in Environment, Department of Environment, CIEMAT, Madrid, Spain
| | - Paloma Sanz
- Unit of POPs and Emerging Pollutants in Environment, Department of Environment, CIEMAT, Madrid, Spain
| | - María Ángeles Martínez
- Unit of POPs and Emerging Pollutants in Environment, Department of Environment, CIEMAT, Madrid, Spain
| | - Jakub Hofman
- RECETOX, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Igor Pasković
- Department of Agriculture and Nutrition, Institute of Agriculture and Tourism, K. Huguesa 8, 52440 Poreč, Croatia
| | - Marija Polić Pasković
- Department of Agriculture and Nutrition, Institute of Agriculture and Tourism, K. Huguesa 8, 52440 Poreč, Croatia
| | - Matjaž Glavan
- Agronomy Department, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Esperanza Huerta Lwanga
- Soil Physics and Land Management Group, Wageningen University & Research, Wageningen, Netherlands
| | | | - Isabel Campos
- CESAM and Department of Environment and Planning, University of Aveiro, Portugal
| | - Francisco Alcon
- Agricultural Engineering School, Universidad Politécnica de Cartagena, Spain
| | - Josefa Contreras
- Agricultural Engineering School, Universidad Politécnica de Cartagena, Spain
| | | | - Daria Sgargi
- Cesare Maltoni Cancer Research Center, Ramazzini Institute, Italy
| | - Paul T J Scheepers
- Radboud Institute for Biological and Environmental Sciences, Radboud University, Nijmegen, the Netherlands
| | - Coen Ritsema
- Soil Physics and Land Management Group, Wageningen University & Research, Wageningen, Netherlands
| | - Violette Geissen
- Soil Physics and Land Management Group, Wageningen University & Research, Wageningen, Netherlands
| |
Collapse
|
2
|
Wenzel A, Westphal C, Ballauff J, Berkelmann D, Brambach F, Buchori D, Camarretta N, Corre MD, Daniel R, Darras K, Erasmi S, Formaglio G, Hölscher D, Iddris NAA, Irawan B, Knohl A, Kotowska MM, Krashevska V, Kreft H, Mulyani Y, Mußhoff O, Paterno GB, Polle A, Potapov A, Röll A, Scheu S, Schlund M, Schneider D, Sibhatu KT, Stiegler C, Sundawati L, Tjoa A, Tscharntke T, Veldkamp E, Waite PA, Wollni M, Zemp DC, Grass I. Balancing economic and ecological functions in smallholder and industrial oil palm plantations. Proc Natl Acad Sci U S A 2024; 121:e2307220121. [PMID: 38621138 PMCID: PMC11047082 DOI: 10.1073/pnas.2307220121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 01/10/2024] [Indexed: 04/17/2024] Open
Abstract
The expansion of the oil palm industry in Indonesia has improved livelihoods in rural communities, but comes at the cost of biodiversity and ecosystem degradation. Here, we investigated ways to balance ecological and economic outcomes of oil palm cultivation. We compared a wide range of production systems, including smallholder plantations, industrialized company estates, estates with improved agronomic management, and estates with native tree enrichment. Across all management types, we assessed multiple indicators of biodiversity, ecosystem functions, management, and landscape structure to identify factors that facilitate economic-ecological win-wins, using palm yields as measure of economic performance. Although, we found that yields in industrialized estates were, on average, twice as high as those in smallholder plantations, ecological indicators displayed substantial variability across systems, regardless of yield variations, highlighting potential for economic-ecological win-wins. Reducing management intensity (e.g., mechanical weeding instead of herbicide application) did not lower yields but improved ecological outcomes at moderate costs, making it a potential measure for balancing economic and ecological demands. Additionally, maintaining forest cover in the landscape generally enhanced local biodiversity and ecosystem functioning within plantations. Enriching plantations with native trees is also a promising strategy to increase ecological value without reducing productivity. Overall, we recommend closing yield gaps in smallholder cultivation through careful intensification, whereas conventional plantations could reduce management intensity without sacrificing yield. Our study highlights various pathways to reconcile the economics and ecology of palm oil production and identifies management practices for a more sustainable future of oil palm cultivation.
Collapse
Affiliation(s)
- Arne Wenzel
- Functional Agrobiodiversity, Department of Crop Sciences, University of Göttingen, Göttingen37077, Germany
| | - Catrin Westphal
- Functional Agrobiodiversity, Department of Crop Sciences, University of Göttingen, Göttingen37077, Germany
- Centre of Biodiversity and Sustainable Land Use, University of Göttingen, Göttingen37077, Germany
| | - Johannes Ballauff
- Forest Botany and Tree Physiology, University of Göttingen, Göttingen37077, Germany
| | - Dirk Berkelmann
- Department of Natural Resources, Faculty of Geo-information Science and Earth Observation, University of Twente, Enschede7522 NB, Netherlands
- Ecology of Tropical Agricultural Systems, University of Hohenheim, Stuttgart70599, Germany
- Laboratorio Biotecnología de Plantas, Escuela de Biología, Universidad de Costa Rica, San Pedro11501, Costa Rica
| | - Fabian Brambach
- Biodiversity, Macroecology & Biogeography, University of Göttingen, Göttingen37077, Germany
| | - Damayanti Buchori
- Department of Plant Protection, IPB University, Bogor16680, Indonesia
| | | | - Marife D. Corre
- Centre of Biodiversity and Sustainable Land Use, University of Göttingen, Göttingen37077, Germany
- Soil Science of Tropical and Subtropical Ecosystems, University of Göttingen, Göttingen37077, Germany
| | - Rolf Daniel
- Department of Natural Resources, Faculty of Geo-information Science and Earth Observation, University of Twente, Enschede7522 NB, Netherlands
| | - Kevin Darras
- Functional Agrobiodiversity, Department of Crop Sciences, University of Göttingen, Göttingen37077, Germany
| | - Stefan Erasmi
- Thünen Institute of Farm Economics, Braunschweig38116, Germany
| | - Greta Formaglio
- Soil Science of Tropical and Subtropical Ecosystems, University of Göttingen, Göttingen37077, Germany
| | - Dirk Hölscher
- Centre of Biodiversity and Sustainable Land Use, University of Göttingen, Göttingen37077, Germany
- Tropical Silviculture and Forest Ecology, University of Göttingen, Göttingen37077, Germany
| | - Najeeb Al-Amin Iddris
- Soil Science of Tropical and Subtropical Ecosystems, University of Göttingen, Göttingen37077, Germany
| | - Bambang Irawan
- Forestry Faculty, University of Jambi, Jambi36361, Indonesia
| | - Alexander Knohl
- Centre of Biodiversity and Sustainable Land Use, University of Göttingen, Göttingen37077, Germany
- Bioclimatology, University of Göttingen, Göttingen37077, Germany
| | - Martyna M. Kotowska
- Plant Ecology and Ecosystems Research, University of Göttingen, Göttingen37077, Germany
| | - Valentyna Krashevska
- Department of Animal Ecology, J.F. Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen37073, Germany
| | - Holger Kreft
- Centre of Biodiversity and Sustainable Land Use, University of Göttingen, Göttingen37077, Germany
- Biodiversity, Macroecology & Biogeography, University of Göttingen, Göttingen37077, Germany
| | - Yeni Mulyani
- Department of Forest Resources Conservation and Ecotourism, Faculty of Forestry, Bogor Agricultural University, Bogor16680, Indonesia
| | - Oliver Mußhoff
- Centre of Biodiversity and Sustainable Land Use, University of Göttingen, Göttingen37077, Germany
- Department of Agricultural Economics and Rural Development, University of Göttingen, Göttingen37073, Germany
| | - Gustavo B. Paterno
- Biodiversity, Macroecology & Biogeography, University of Göttingen, Göttingen37077, Germany
| | - Andrea Polle
- Centre of Biodiversity and Sustainable Land Use, University of Göttingen, Göttingen37077, Germany
- Forest Botany and Tree Physiology, University of Göttingen, Göttingen37077, Germany
| | - Anton Potapov
- Department of Animal Ecology, J.F. Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen37073, Germany
- German Centre for Integrative Biodiversity Research Halle-Jena-Leipzig, Leipzig04103, Germany
- Faculty of Life Sciences, University of Leipzig, Leipzig04103, Germany
| | - Alexander Röll
- Tropical Silviculture and Forest Ecology, University of Göttingen, Göttingen37077, Germany
| | - Stefan Scheu
- Centre of Biodiversity and Sustainable Land Use, University of Göttingen, Göttingen37077, Germany
- Department of Animal Ecology, J.F. Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen37073, Germany
| | - Michael Schlund
- Department of Natural Resources, Faculty of Geo-information Science and Earth Observation, University of Twente, Enschede7522 NB, Netherlands
| | - Dominik Schneider
- Institute of Microbiology and Genetics, Department of Genomic and Applied Microbiology, University of Göttingen, Göttingen37077, Germany
| | - Kibrom T. Sibhatu
- Department of Agricultural Economics and Rural Development, University of Göttingen, Göttingen37073, Germany
| | | | - Leti Sundawati
- Department of Forest Management, Faculty of Forestry, Bogor Agricultural University, Bogor16680, Indonesia
| | - Aiyen Tjoa
- Agriculture Faculty, Tadulako University, Palu94118, Indonesia
| | - Teja Tscharntke
- Centre of Biodiversity and Sustainable Land Use, University of Göttingen, Göttingen37077, Germany
- Agroecology, Department of Crop Sciences, University of Göttingen, Göttingen37075, Germany
| | - Edzo Veldkamp
- Centre of Biodiversity and Sustainable Land Use, University of Göttingen, Göttingen37077, Germany
- Soil Science of Tropical and Subtropical Ecosystems, University of Göttingen, Göttingen37077, Germany
| | - Pierre-André Waite
- Technische Universität Dresden, Chair of Forest Botany, Tharandt01737, Germany
| | - Meike Wollni
- Centre of Biodiversity and Sustainable Land Use, University of Göttingen, Göttingen37077, Germany
- Department of Agricultural Economics and Rural Development, University of Göttingen, Göttingen37073, Germany
| | | | - Ingo Grass
- Ecology of Tropical Agricultural Systems, University of Hohenheim, Stuttgart70599, Germany
- Center for Biodiversity and Integrative Taxonomy (KomBioTa), University of Hohenheim, Stuttgart70599, Germany
| |
Collapse
|
3
|
Yuan X, Bowling A, Gemperline E, Mannam V, Howard S. Real-time, depth-resolved, in vivo multiphoton fluorescence lifetime imaging microscopy of agricultural herbicide treatments in plants. OPTICS EXPRESS 2024; 32:13733-13745. [PMID: 38859335 DOI: 10.1364/oe.507002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 02/13/2024] [Indexed: 06/12/2024]
Abstract
The development of effective and safe agricultural treatments requires sub-cellular insight of the biochemical effects of treatments in living tissue in real-time. Industry-standard mass spectroscopic imaging lacks real-time in vivo capability. As an alternative, multiphoton fluorescence lifetime imaging microscopy (MPM-FLIM) allows for 3D sub-cellular quantitative metabolic imaging but is often limited to low frame rates. To resolve relatively fast effects (e.g., photosynthesis inhibiting treatments), high-frame-rate MPM-FLIM is needed. In this paper, we demonstrate and evaluate a high-speed MPM-FLIM system, "Instant FLIM", as a time-resolved 3D sub-cellular molecular imaging system in highly scattering, living plant tissues. We demonstrate simultaneous imaging of cellular autofluorescence and crystalline agrochemical crystals within plant tissues. We further quantitatively investigate the herbicidal effects of two classes of agricultural herbicide treatments, photosystem II inhibiting herbicide (Basagran) and auxin-based herbicide (Arylex), and successfully demonstrate the capability of the MPM-FLIM system to measure biological changes over a short time with enhanced imaging speed. Results indicate that high-frame-rate 3D MPM-FLIM achieves the required fluorescence lifetime resolution, temporal resolution, and spatial resolution to be a useful tool in basic plant cellular biology research and agricultural treatment development.
Collapse
|
4
|
Sun S, Chen W, Peng K, Chen X, Chen J. Characterization of a novel amidohydrolase with promiscuous esterase activity from a soil metagenomic library and its application in degradation of amide herbicides. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:20970-20982. [PMID: 38383926 PMCID: PMC10948491 DOI: 10.1007/s11356-024-32362-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 02/03/2024] [Indexed: 02/23/2024]
Abstract
Amide herbicides have been extensively used worldwide and have received substantial attention due to their adverse environmental effects. Here, a novel amidohydrolase gene was identified from a soil metagenomic library using diethyl terephthalate (DET) as a screening substrate. The recombinant enzyme, AmiH52, was heterologously expressed in Escherichia coli and later purified and characterized, with the highest activity occurring at 40 ℃ and pH 8.0. AmiH52 was demonstrated to have both esterase and amidohydrolase activities, which exhibited highly specific activity for p-nitrophenyl butyrate (2669 U/mg) and degrading activity against several amide herbicides. In particular, it displayed the strongest activity against propanil, with a high degradation rate of 84% at 8 h. A GC-MS analysis revealed that propanil was transformed into 3,4-dichloroaniline (3,4-DCA) during this degradation. The molecular interactions and binding stability were then analyzed by molecular docking and molecular dynamics simulation, which revealed that several key amino acid residues, including Tyr164, Trp66, Ala59, Val283, Arg58, His33, His191, and His226, are involved in the specific interactions with propanil. This study provides a function-driven screening method for amide herbicide hydrolase from the metagenomic libraries and a promising propanil-degrading enzyme (AmiH52) for potential applications in environmental remediation.
Collapse
Affiliation(s)
- Shengwei Sun
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
- School of Engineering, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK
| | - Wanqi Chen
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Kailin Peng
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Xueyingzi Chen
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Jinju Chen
- School of Engineering, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK.
- Department of Materials, Loughborough University, Loughborough, LE11 3TU, UK.
| |
Collapse
|
5
|
Huang Y, Zhao S, Xian L, Li W, Zhou C, Sun J. Negative Effects of Butachlor on the Growth and Physiology of Four Aquatic Plants. PLANTS (BASEL, SWITZERLAND) 2024; 13:304. [PMID: 38276761 PMCID: PMC10819925 DOI: 10.3390/plants13020304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/09/2024] [Accepted: 01/15/2024] [Indexed: 01/27/2024]
Abstract
The increasing use of herbicides in intelligent agricultural production is driven by the time-consuming nature of manual weeding, as well as its ephemeral effectiveness. However, herbicides like butachlor degrade slowly and can be washed away by rainwater, ultimately flowing into the farm ponds and posing risks to aquatic plants. To identify and recommend superior restoration strategies that effectively address the challenges posed by butachlor, we investigated the impacts of butachlor on the growth and physiology of four common aquatic plants (i.e., Hydrilla verticillata, Ceratophyllum demersum, Potamogeton maackianus, and Myriophyllum aquaticum) and their potential role in mitigating environmental damage by reducing residual herbicide levels. Our findings indicated that M. aquaticum was tolerant to butachlor, exhibiting higher growth rates than other species when exposed to various butachlor concentrations. However, the concentration of butachlor negatively impacted the growth of H. verticillata, C. demersum, and P. maackianus, with higher concentrations leading to more significant inhibitory effects. After a 15-day experimental period, aquatic plants reduced the butachlor residuals in culture mediums across concentrations of 0.5 mg/L, 1 mg/L, and 2 mg/L compared to non-plant controls. Our findings classified P. maackianus as butachlor-sensitive and M. aquaticum as butachlor-tolerant species. This investigation represents novel research aimed at elucidating the contrasting effects of different concentrations of butachlor on four common aquatic species in the agricultural multi-pond system.
Collapse
Affiliation(s)
- Yixuan Huang
- School of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
- Aquatic Plants Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Suting Zhao
- Hubei Key Laboratory of Big Data in Science and Technology, Wuhan Library, Chinese Academy of Sciences, Wuhan 430071, China
| | - Ling Xian
- Aquatic Plants Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Wei Li
- Aquatic Plants Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
- Research Center for Ecology, College of Science, Tibet University, Lhasa 850000, China
- Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Cunyu Zhou
- School of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
| | - Junyao Sun
- Aquatic Plants Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
- Research Center for Ecology, College of Science, Tibet University, Lhasa 850000, China
| |
Collapse
|
6
|
Xu Z, Li B, Jia Y, Guo X, Lv F. Biodegradation of Imazethapyr by Bacterial Strain IM9601 Isolated from Agricultural Soil. Curr Microbiol 2023; 81:33. [PMID: 38062306 PMCID: PMC10703984 DOI: 10.1007/s00284-023-03533-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 10/21/2023] [Indexed: 12/18/2023]
Abstract
The widespread utilization of the herbicide imazethapyr presents significant challenges to crop rotation and results in detrimental soil degradation issues. Bacterial biodegradation has emerged as a promising and eco-friendly approach for mitigating pesticide residues contamination in the environment. In this study, a novel bacterium, identified as Brevibacterium sp. IM9601, was isolated and characterized based on morphological, physiological, and biochemical characteristics, as well as 16S rRNA gene sequence. This strain exhibited the ability to utilize imazethapyr as its sole carbon source for growth. Response surface methodology (RSM) was applied to optimize the degradation conditions. The most favorable conditions were determined to be a temperature of 27 °C, pH of 6.0, and an initial inoculum with a final OD600 of 0.15. Under these optimized condition, bacterial strain IM9601 exhibited substantial imazethapyr degradation, with removal rates of 90.08 and 87.05% for initial imazethapyr concentrations of 50 and 100 mg L-1, respectively, achieved within a 5-day incubation period. This investigation highlights imazethapyr-degrading capabilities of the Brevibacterium genus bacterial strain IM9601, marking it as a potentially novel and effective solution for addressing the environmental pollution resulting from the usage of imazethapyr. The study contributes to the growing body of research on bioremediation approaches, offering a sustainable and environmentally friendly method for mitigating the adverse impacts of herbicide contamination in agricultural settings.
Collapse
Affiliation(s)
- Zehua Xu
- Horticultural Research Institute, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Baiyun Li
- Horticultural Research Institute, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Yonghua Jia
- Horticultural Research Institute, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Xinnian Guo
- Agricultural Resources and Environment Institute, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Fanyang Lv
- Biotechnology Research Institute/State Key Laboratory of Agricultural Microbiology, Chinese Academy of Agricultural Sciences, Beijing, China.
| |
Collapse
|
7
|
Oyeyiola YB, Opeolu BO. Immediate effects of atrazine application on soil organic carbon and selected macronutrients and amelioration by sawdust biochar pretreatment. PHYSICAL SCIENCES REVIEWS 2023. [DOI: 10.1515/psr-2022-0241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
Abstract
Increasing use of herbicides has contributed immensely to current soil and water degradation in the tropics. Published works on effects of herbicides on soil organic carbon (SOC) – a major indicator for soil health and macronutrients and their enhancement by biochar are scarce for soils in Africa despite heavy herbicide applications every cropping season. This incubation trial evaluated immediate effects of atrazine application on SOC and selected soil macronutrients. The potential of sawdust (SD) biochar to mitigate associated SOC and macronutrients depletion was also assessed. A total of 950 g soil was placed in each leaching column (20 cm length and 7 cm diameter). The experiment was a factorial combination of four SD biochar types: SD + poultry manure (PM) pyrolyzed at 350 °C, SD-PM at 350 °C, SD + PM at 450 °C and SD-PM at 450 °C applied at two rates of 5 and 10 t/ha equivalent to 2.38 and 4.76 g/950 g soil, respectively. Atrazine alone and absolute control (AC) that received neither biochar nor atrazine were included for comparison. The treatments were replicated thrice in completely randomized design. Appropriate biochar was applied within 5 cm soil depth, moistened to field capacity, and left to equilibrate for 2 weeks. Thereafter, 20 mL atrazine solution was applied at 2.5 kg a.i/ha (achieved through 6.75 g atrazine powder/l of distilled water). Basal NPK 15:15:15 fertilizer mixed with urea at 0.1 and 0.03 g/900 g soil, respectively, was applied to mimic farmers’ practice on atrazine treated fields. Maize seeds were thereafter sown in the treated soils and nurtured for 2 weeks. Data taken on soil pH, SOC, exchangeable bases, available phosphorus, and dry biomass weight (DBW) of maize seedlings at the expiration of the trial were subjected to two-way analysis of variance using Genstat Statistical Package with means separated using LSD at 5% probability level. There were significant reductions in soil pH (5.8%), SOC (31%), and Ex. Ca (27%) in atrazine alone soil compared to AC. Contrarily, similar atrazine treated soil pretreated with SD biochar had increased soil pH, SOC, exchangeable Ca, available P, and DBW by 5.6 (in SD + PM@450 °C), 73.6 (SD-PM@450 °C), 84 (SD + PM@450 °C), 2,338.4 (SD + PM@450 °C), and 154.8% (SD + PM@350 °C), respectively, dominantly at 10 t/ha compared to AC. Sole atrazine treated soil was, however, higher in soil available P (23.8 mg/kg) and TDBW (0.56 g) against 5.42 mg/kg and 0.42 g from AC, respectively. Biochar pH and organic carbon were the most influential biochar properties contributing significantly to SOC sequestration and macronutrient enrichment in the atrazine treated soil. Pretreatment of soils with sawdust biochar prior to atrazine application is, therefore, recommended for mitigating associated organic carbon and macronutrient depletion in the soils for enhanced maize production.
Collapse
Affiliation(s)
- Yetunde Bunmi Oyeyiola
- Department of Crop Production and Soil Science , Ladoke Akintola University of Technology , Ogbomoso , Nigeria
| | - Beatrice Olutoyin Opeolu
- Faculty of Applied Sciences , Cape Peninsula University of Technology , Cape Town , South Africa
| |
Collapse
|
8
|
Ferreira MF, Torres C, Bracamonte E, Galetto L. Glyphosate affects the susceptibility of non-target native plant species according to their stage of development and degree of exposure in the landscape. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 865:161091. [PMID: 36566866 DOI: 10.1016/j.scitotenv.2022.161091] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/16/2022] [Accepted: 12/17/2022] [Indexed: 06/17/2023]
Abstract
Unsustainable agriculture is producing a great socio-ecological transformation in Latin America because it has expanded into areas occupied by native forests. Glyphosate is the most widely used herbicide, with severe ecotoxicological effects on non-target organisms. The aim of this study was to determine the effects of glyphosate on seedlings of 24 non-target herbaceous and non-herbaceous plant species present in forest relicts of Argentine Chaco. The effects of a gradient of glyphosate doses (525, 1050, 2100, 4200, and 8400 g ai/ha) were measured in seedlings of each species under greenhouse conditions. Seedlings were grown from seeds collected from native forest fragments of different sizes (assuming three different degrees of historical exposure to glyphosate in the landscape). Doses were applied at different stages of seedling development (five- and ten-weeks after emergence), and phytotoxicity, growth reduction, and sensitivity were measured. Glyphosate produced lethal or sublethal effects in all 24 species, some of which were very sensitive (>60 % of the species presented strong to severe growth reduction with ¼ of the dose used on crops). The greatest toxicological effects were related to early stage of development, herbaceous species, and low historical exposure to glyphosate. According to the species sensitivity distribution, the drift-dose to protect 95 % of the plant species that occur in larger forest fragments should not exceed 5 % of the dose commonly used on crops. These results suggest that the current weed management linked to glyphosate-resistant crops could lead to a gradual loss of biodiversity in the landscape. Concurrently, selection of glyphosate-tolerant biotypes in some non-target species could represent a very problematic cycle for the current model of industrial agriculture. Some alternatives for weed control are proposed.
Collapse
Affiliation(s)
- María Florencia Ferreira
- Instituto Multidisciplinario de Biología Vegetal, Universidad Nacional de Córdoba-Consejo Nacional de Investigaciones Científicas y Técnicas, Avenida Vélez Sarsfield 1611, Córdoba, Argentina
| | - Carolina Torres
- Instituto Multidisciplinario de Biología Vegetal, Universidad Nacional de Córdoba-Consejo Nacional de Investigaciones Científicas y Técnicas, Avenida Vélez Sarsfield 1611, Córdoba, Argentina; Cátedra de Diversidad Biológica III, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Avenida Vélez Sarsfield 1611, Córdoba, Argentina
| | - Enzo Bracamonte
- Cátedra de Ecotoxicología, Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba, Ingeniero Agrónomo Félix Aldo Marrone 746, Córdoba, Argentina
| | - Leonardo Galetto
- Instituto Multidisciplinario de Biología Vegetal, Universidad Nacional de Córdoba-Consejo Nacional de Investigaciones Científicas y Técnicas, Avenida Vélez Sarsfield 1611, Córdoba, Argentina; Cátedra de Diversidad Biológica III, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Avenida Vélez Sarsfield 1611, Córdoba, Argentina.
| |
Collapse
|
9
|
S Karthick Raja Namasivayam, U Karthika Pandian, Vani Chava, R S Arvind Bharani, M Kavisri, Meivelu Moovendhan. Chitosan nanocomposite as an effective carrier of potential herbicidal metabolites for noteworthy phytotoxic effect against major aquatic invasive weed water hyacinth (Eichhornia crassipes). Int J Biol Macromol 2023; 226:1597-1610. [PMID: 36455822 DOI: 10.1016/j.ijbiomac.2022.11.272] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 11/25/2022] [Accepted: 11/26/2022] [Indexed: 11/29/2022]
Abstract
In this current work, the herbicidal activity of fungal metabolites stacked chitosan nanocomposite against significant aquatic invasive weed Eichhornia crassipes (water hyacinth) was examined. Herbicidal metabolites from the fungal strain Allophoma oligotrophica were extracted and purified under standard condition. Altered ionic gelation technique was received for the amalgamation of chitosan nanocomposite fabricated with herbicidal metabolites. Synthesized nanocomposite incited checked herbicidal impact on the leaflets of water hyacinth. Synthesized nanocomposite induced marked herbicidal effect on the tested leaflets of water hyacinth. Necrotic development on the tested leaflets at earlier incubation period followed by progressive enhancement of necrotic lesion reveals the noteworthy herbicidal activity of the synthesized nanocomposite. Parenchymal, mesenchymal tissue disintegration, reduction of total chlorophyll content, elevated anti oxidative enzymes and changes in qualitative protein profiling of tested leaflets reveals the nanocomposite induced noteworthy morphometric and functional effects. Effect of solvents on the release profile demonstrates that ethyl acetate treatment brought about controlled or sustained release of metabolites. No sign of toxic effect on the zebra fish embryonic developmental stages revealed biocompatibility of the nanocomposite.
Collapse
Affiliation(s)
- S Karthick Raja Namasivayam
- Department of Research & Innovation, Saveetha School of Engineering, SIMATS deemed University, Chennai 602195, Tamil Nadu, India
| | - U Karthika Pandian
- Centre for Bioresource Research and Development (C-BIRD), Department of Biotechnology, Sathyabama Institute of Science and Technology, Chennai 600119, Tamil Nadu, India
| | - Vani Chava
- Centre for Bioresource Research and Development (C-BIRD), Department of Biotechnology, Sathyabama Institute of Science and Technology, Chennai 600119, Tamil Nadu, India
| | - R S Arvind Bharani
- Department of Research & Innovation, Saveetha School of Engineering, SIMATS deemed University, Chennai 602195, Tamil Nadu, India
| | - M Kavisri
- Department of Civil Engineering, School of building and Environment, Sathyabama Institute of Science &Technology, Chennai 600119, Tamil Nadu, India
| | - Meivelu Moovendhan
- Centre for Ocean Research, Col.Dr. Jeppiaar Research Park, Sathyabama Institute of Science & Technology, Chennai 600119, Tamil Nadu, India.
| |
Collapse
|
10
|
Iriart V, Baucom RS, Ashman TL. Interspecific variation in resistance and tolerance to herbicide drift reveals potential consequences for plant community co-flowering interactions and structure at the agro-eco interface. ANNALS OF BOTANY 2022; 130:1015-1028. [PMID: 36415945 PMCID: PMC9851304 DOI: 10.1093/aob/mcac137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/02/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND AND AIMS When plant communities are exposed to herbicide 'drift', wherein particles containing the active ingredient travel off-target, interspecific variation in resistance or tolerance may scale up to affect community dynamics. In turn, these alterations could threaten the diversity and stability of agro-ecosystems. We investigated the effects of herbicide drift on the growth and reproduction of 25 wild plant species to make predictions about the consequences of drift exposure on plant-plant interactions and the broader ecological community. METHODS We exposed potted plants from species that commonly occur in agricultural areas to a drift-level dose of the widely used herbicide dicamba or a control solution in the glasshouse. We evaluated species-level variation in resistance and tolerance for vegetative and floral traits. We assessed community-level impacts of drift by comparing the species evenness and flowering networks of glasshouse synthetic communities comprised of drift-exposed and control plants. KEY RESULTS Species varied significantly in resistance and tolerance to dicamba drift: some were negatively impacted while others showed overcompensatory responses. Species also differed in the way they deployed flowers over time following drift exposure. While drift had negligible effects on community evenness based on vegetative biomass, it caused salient differences in the structure of co-flowering networks within communities. Drift reduced the degree and intensity of flowering overlap among species, altered the composition of groups of species that were more likely to co-flower with each other than with others and shifted species roles (e.g. from dominant to inferior floral producers, and vice versa). CONCLUSIONS These results demonstrate that even low levels of herbicide exposure can significantly alter plant growth and reproduction, particularly flowering phenology. If field-grown plants respond similarly, then these changes would probably impact plant-plant competitive dynamics and potentially plant-pollinator interactions occurring within plant communities at the agro-ecological interface.
Collapse
Affiliation(s)
- Veronica Iriart
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Regina S Baucom
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Tia-Lynn Ashman
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA
| |
Collapse
|
11
|
Characteristics of Plant Community and Its Relationship with Groundwater Depth of the Desert Riparian Zone in the Lower Reaches of the Ugan River, Northwest China. WATER 2022. [DOI: 10.3390/w14101663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
The vegetation in the desert riparian zone represents a critical barrier in the maintenance of the ecosystem’s balance. However, in recent years, the vegetation degradation of the riparian zone has seriously hindered economic development and ecological environment conservation. Based on a field investigation and literature, the mechanisms of vegetation degradation in the lower reaches of the Ugan River are discussed in this study through the analysis of plant coverage, diversity, substitution rate, distribution pattern, grey correlation analysis, and the relationship with groundwater depth. The results showed that the vegetation coverage in this region is relatively low when the water depth exceeds 4 m. Furthermore, the Shannon–Wiener index, the Simpson index, and the Pielou index all decreased with increases in water depth. Woody plants are the main species maintaining the ecological balance of the region with an aggregation distribution pattern. The degradation of vegetation is the result of the lack of water sources and the intense water consumption caused by human activities (especially agricultural). To promote ecological balance and vegetation restoration, the relative optimal water depth range should be maintained within 2 to 5 m as well as proper control of human activities. In addition, the degraded vegetation can gradually be restored using point and surface (i.e., flowering in the center and spreading to the surrounding areas). The results can provide a scientific basis for vegetation restoration and ecological conservation in the lower reaches of China’s Ugan River.
Collapse
|
12
|
Aspects, problems and utilization of Arbuscular Mycorrhizal (AM) Application as Bio-fertilizer in sustainable Agriculture. CURRENT RESEARCH IN MICROBIAL SCIENCES 2022; 3:100107. [PMID: 35169758 PMCID: PMC8829076 DOI: 10.1016/j.crmicr.2022.100107] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 10/11/2021] [Accepted: 01/21/2022] [Indexed: 11/23/2022] Open
|