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Saez JM, González SK, Ocante TAL, Bigliardo AL, Briceño GE, Benimeli CS. Actinobacteria bioaugmentation and substrate evaluation for biobeds useful for the treatment of atrazine residues in agricultural fields. J Environ Manage 2022; 320:115870. [PMID: 36056489 DOI: 10.1016/j.jenvman.2022.115870] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 06/27/2022] [Accepted: 07/24/2022] [Indexed: 06/15/2023]
Abstract
Biopurification systems (BPS) or biobeds are bioprophylaxis systems to prevent pesticide point-source contamination, whose efficiency relies mostly on the pesticide removal capacity of the biomixture, the majority component of a BPS. The adaptation of the components of the biomixtures to local availabilities is a key aspect to ensure the sustainability of the system. In this work, the removal of atrazine (ATZ) was evaluated in biomixtures formulated with three sugarcane by-products as alternative lignocellulosic substrates. Based on the capacity of actinobacteria to tolerate and degrade diverse pesticides, the effect of biomixtures bioaugmentation with actinobacteria was evaluated as a strategy to enhance the depuration capacity of biobeds. Also, the effect of ATZ and/or the bioaugmentation on microbial developments and enzymatic activities were studied. The biomixtures formulated with bagasse, filter cake, or harvest residue, reached pesticide removal values of 37-41% at 28 d of incubation, with t1/2 between 37.9 ± 0.4 d and 52.3 ± 0.4 d. The bioaugmentation with Streptomyces sp. M7 accelerated the dissipation of the pesticide in the biomixtures, reducing ATZ t1/2 3-fold regarding the controls, and achieving up to 72% of ATZ removal. Atrazine did not exert a clear effect on microbial developments, although most of the microbial counts were less in the contaminated biomixtures at the end of the assay. The bioaugmentation improved the development of the microbiota in general, specially actinobacteria and fungi, regarding the non-bioaugmented systems. The inoculation with Streptomyces sp. M7 enhanced acid phosphatase activity and/or reversed a possible effect of the pesticide over this enzymatic activity.
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Affiliation(s)
- Juliana M Saez
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Av. Belgrano y Pje. Caseros, Tucumán, 4000, Argentina; Facultad de Ciencias Naturales e Instituto Miguel Lillo, Universidad Nacional de Tucumán, Miguel Lillo 205, Tucumán, 4000, Argentina
| | - Samanta K González
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Av. Belgrano y Pje. Caseros, Tucumán, 4000, Argentina
| | - Teresa A L Ocante
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Av. Belgrano y Pje. Caseros, Tucumán, 4000, Argentina
| | - Ana L Bigliardo
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Av. Belgrano y Pje. Caseros, Tucumán, 4000, Argentina
| | - Gabriela E Briceño
- Centro de Excelencia en Investigación Biotecnológica Aplicada al medio Ambiente (CIBAMA), Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco, 4780000, Chile
| | - Claudia S Benimeli
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Av. Belgrano y Pje. Caseros, Tucumán, 4000, Argentina; Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Catamarca, Av. Belgrano 300, Catamarca, 4700, Argentina.
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Carniel LSC, Niemeyer JC, de Oliveira Filho LCI, Alexandre D, Gebler L, Klauberg-Filho O. Are there any risks of the disposal of pesticide effluents in soils? Biobed system meets ecotoxicology ensuring safety to soil fauna. Ecotoxicology 2020; 29:1409-1421. [PMID: 32803564 DOI: 10.1007/s10646-020-02260-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/25/2020] [Indexed: 06/11/2023]
Abstract
The biobed is a purification system, which reduces soil pollution for receiving pesticide residues from handling and washing machinery in agricultural areas. The aims of this study were (1) to assess ecotoxicity effects over time to soil fauna, posed by Lorsban® 480 BR (Chlorpyrifos) and Dithane® NT (Mancozeb) residues when disposed of in a biobed system compared with two subtropical soils, and (2) to assess ecotoxicity effects over time to soil fauna simulating an accidental spillage with Lorsban® 480 BR at the biobed. A semi-field experiment was conducted for 420 days in southern Brazil, testing continuous disposal of washing pulverization tanks in biobeds, Typic Haploperox or Typic Hapludults. In addition, different biobeds received a single dose (1 L) of Lorsban® 480 BR to simulate an accidental spillage. Chronic ecotoxicity tests were performed using Folsomia candida, Eisenia andrei, and Enchytraeus crypticus in different sampling times for both experiments. F. candida was the most sensitive species. The biobed system was able to eliminate effects from residues of both pesticides over time in all species, which did not happen in both natural soils. In accidental spillage simulation, even 420 days after contamination, F. candida did not show reproduction. The biobeds can be a feasible alternative for the disposal and treatment residues of pesticides, also for handling and washing pesticides activities. The system was efficient in promoting degradation and reducing ecotoxicity effects posed by Lorsban® 480 BR and Dithane® NT for soil fauna. It is a safe alternative to avoid soil contamination.
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Affiliation(s)
- Letícia Scopel Camargo Carniel
- Programa de Pós-Graduação em Ciência do Solo (PPGCS), Universidade do Estado de Santa Catarina (UDESC Lages), Lages, SC, 88520-000, Brazil
- Regulatory Ecotoxicology, BASF S.A., São Paulo, SP, Brazil
| | - Julia Carina Niemeyer
- Programa de Pós-Graduação em Ecossistemas Agrícolas e Naturais (PPGEAN), Universidade Federal de Santa Catarina, Curitibanos, SC, 89520-000, Brazil
| | - Luís Carlos Iuñes de Oliveira Filho
- Departamento de Solos, Universidade Federal de Pelotas (UFPel), Capão do Leão, RS, 96160-000, Brazil
- Universidade do Estado de Santa Catarina (UDESC Oeste), Chapecó, SC, 89815-630, Brazil
| | - Douglas Alexandre
- Programa de Pós-Graduação em Ciência do Solo (PPGCS), Universidade do Estado de Santa Catarina (UDESC Lages), Lages, SC, 88520-000, Brazil
| | - Luciano Gebler
- Embrapa Uva e Vinho, BR 285, Km 115, POB 177, Vacaria, RS, 95200-970, Brazil
| | - Osmar Klauberg-Filho
- Programa de Pós-Graduação em Ciência do Solo (PPGCS), Universidade do Estado de Santa Catarina (UDESC Lages), Lages, SC, 88520-000, Brazil.
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3
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Acosta-Sánchez A, Soto-Garita C, Masís-Mora M, Cambronero-Heinrichs JC, Rodríguez-Rodríguez CE. Impaired pesticide removal and detoxification by biomixtures during the simulated pesticide application cycle of a tropical agricultural system. Ecotoxicol Environ Saf 2020; 195:110460. [PMID: 32199216 DOI: 10.1016/j.ecoenv.2020.110460] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/04/2020] [Accepted: 03/07/2020] [Indexed: 06/10/2023]
Abstract
Biopurification systems (BPS) or biobeds have been developed to attenuate point-source contamination due to inappropriate pesticide handling or disposal of agricultural wastewaters. The biomixture used for this strategy should be able to remove different active ingredients but its efficiency can vary due to the constant load of pesticides from crop application programs. For that reason, the performance of biomixtures in conditions that mimic the real pesticide treatment before their implementation in field settings should be assayed. This study aimed to evaluate the removal and detoxifying capacity of a previously formulated biomixture (coconut fiber, 50% v/v; compost, 25%; and soil pre-exposed to pesticides, 25%) during a simulated cycle of pesticide application (93 days) for potato production. The scheme included a first application of linuron followed by a weekly alternated treatment of the mixtures chlorpyrifos/metalaxyl and malathion/dimethomorph, and antibiotics at day 72. The biomixture showed efficient removal of linuron (half-life <15 days), and a fluctuating transformation rate for the other compounds. A constant and sustained removal was observed for malathion and methalaxyl. In contrast, lower efficiency and accumulation was described for chlorpyrifos and dimethomorph. Following antibiotic treatment, changes on pesticide removal were observed only in the case of chlorpyrifos, whose removal was slightly enhanced. Furthermore, acute toxicity assays showed limited detoxification of the matrix, especially when compounds began to accumulate. Summarizing, our experiments showed that the proposed biomixture does not support a proper removal of the pesticides during the simulated application cycle of potato production. Further optimization of a biopurification system is required to guarantee the successful elimination of pesticide combinations when applied in field conditions.
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Affiliation(s)
- Alejandra Acosta-Sánchez
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060, San José, Costa Rica
| | - Claudio Soto-Garita
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060, San José, Costa Rica
| | - Mario Masís-Mora
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060, San José, Costa Rica
| | - Juan Carlos Cambronero-Heinrichs
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060, San José, Costa Rica; Facultad de Microbiología, Universidad de Costa Rica, 2060, San José, Costa Rica
| | - Carlos E Rodríguez-Rodríguez
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060, San José, Costa Rica.
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Tortella GR, Cuozzo S, Diez MC, Rodríguez-Rodríguez CE, Durán P, Masís-Mora M, Parada J, Rubilar O. Pesticide dissipation capacity of an organic biomixture used in the agriculture exposed to copper oxychloride. Ecotoxicol Environ Saf 2020; 190:110121. [PMID: 31896474 DOI: 10.1016/j.ecoenv.2019.110121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/17/2019] [Accepted: 12/21/2019] [Indexed: 06/10/2023]
Affiliation(s)
- G R Tortella
- Facultad de Ingeniería Ciencias y Administración, Departamento de Ingeniería Química, Universidad de La Frontera, Temuco, Chile; Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA), Universidad de La Frontera, Casilla 54-D, Temuco, Chile; Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Casilla 54-D, Temuco, Chile.
| | - S Cuozzo
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, T40001MVB, Tucumán, Argentina.
| | - M C Diez
- Facultad de Ingeniería Ciencias y Administración, Departamento de Ingeniería Química, Universidad de La Frontera, Temuco, Chile; Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA), Universidad de La Frontera, Casilla 54-D, Temuco, Chile
| | - C E Rodríguez-Rodríguez
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060, San José, Costa Rica
| | - P Durán
- Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Casilla 54-D, Temuco, Chile
| | - M Masís-Mora
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060, San José, Costa Rica
| | - J Parada
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA), Universidad de La Frontera, Casilla 54-D, Temuco, Chile
| | - O Rubilar
- Facultad de Ingeniería Ciencias y Administración, Departamento de Ingeniería Química, Universidad de La Frontera, Temuco, Chile; Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA), Universidad de La Frontera, Casilla 54-D, Temuco, Chile
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5
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Diez MC, Leiva B, Gallardo F. Novel insights in biopurification system for dissipation of a pesticide mixture in repeated applications. Environ Sci Pollut Res Int 2018; 25:21440-21450. [PMID: 28914414 DOI: 10.1007/s11356-017-0130-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 09/07/2017] [Indexed: 06/07/2023]
Abstract
A biopurification system based on the adsorption and degradation capacity of a biomixture to degrade a mixture of pesticides (atrazine, chlorpyrifos, iprodione; 50 mg kg-1 each) in repeated applications (0, 30, and 60 days) was evaluated. Tanks of 1 m3 packed with a biomixture (ρ 0.29 g mL-1) with and without vegetal cover were used. The biomixture contained soil, peat, and wheat straw in a proportion 1:1:2 by volume, respectively. Pesticide concentrations, biological activities (urease, phenoloxidase, and dehydrogenase), and microbial community changes (DGGE and qPCR) were evaluated periodically. Pesticide dissipation was higher in tanks with vegetal cover (> 95%) and no variation was observed after the three applications; contrarily, pesticide dissipation decreased in the tank without vegetal cover after each application. The presence of vegetal cover decreased the half-life of pesticides by at least twice. Biological activities were in general not affected by the application and reapplication of pesticides in the same treatment; however, they exhibited some differences between tanks containing and lacking the vegetal cover. High similarity between microbial groups (actinobacteria, bacteria, and fungi) was observed, suggesting no influence ascribable to the successive pesticide applications. The number of copies of bacteria and actinobacteria remained almost constant during the assay. However, the number of copies of fungi was significantly higher in the uncontaminated tank without vegetal cover.
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Affiliation(s)
- Maria Cristina Diez
- Chemical Engineering Department, La Frontera University, Temuco, Chile.
- Biotechnological Research Center Applied to the Environment - Scientific and Technological Bioresource Nucleus (CIBAMA-BIOREN), Temuco, Chile.
| | - Bárbara Leiva
- Biotechnological Research Center Applied to the Environment - Scientific and Technological Bioresource Nucleus (CIBAMA-BIOREN), Temuco, Chile
| | - Felipe Gallardo
- Biotechnological Research Center Applied to the Environment - Scientific and Technological Bioresource Nucleus (CIBAMA-BIOREN), Temuco, Chile
- Chemical Sciences and Natural Resource Department, La Frontera University, Temuco, Chile
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6
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Rodríguez-Castillo G, Molina-Rodríguez M, Pérez-Villanueva M, Masís-Mora M, Rodríguez-Rodríguez CE. Removal of Two Neonicotinoid Insecticides and Mineralization of 14C-Imidacloprid in Biomixtures. Bull Environ Contam Toxicol 2018; 101:137-143. [PMID: 29858622 DOI: 10.1007/s00128-018-2370-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 05/26/2018] [Indexed: 06/08/2023]
Abstract
Environmental contamination with neonicotinoid insecticides represents an issue of wide concern due to their negative effects on pollinators. The goal of this work was to evaluate the potential use of biomixtures employed in biopurification systems (BPS) to remove two neonicotinoid pesticides, imidacloprid and thiamethoxam, from wastewater of agricultural origin. The removal was assayed by quantification of the parent compounds and the detection of putative transformation products of imidacloprid by means of LC-MS/MS, and mineralization of radiolabeled imidacloprid. Two biomixtures (B1, B2) were prepared using coconut fiber, compost and two soils pre-exposed to imidacloprid (volumetric composition 50:25:25). After spiking of neonicotinoids and 228 days of treatment, the removal ranged from 22.3%-30.3% and 38.6%-43.7% for imidacloprid and thiamethoxam, respectively. Transformation products imidacloprid-urea, desnitro-imidacloprid and desnitro-olefin-imidacloprid were detected in both biomixtures. The mineralization of 14C-imidacloprid revealed DT50 (mineralization half-lives) values of 3466 and 7702 days in the biomixtures B1 and B2, respectively, markedly lower than those in the soil used in their preparation (8667 and 9902 days, respectively). As demonstrated by these findings, the high persistence of these compounds in the BPS suggests that additional biological (or physicochemical) approaches should be explored in order to decrease the impact of neonicotinoid-containing wastewater of agricultural origin.
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Affiliation(s)
- Gabriel Rodríguez-Castillo
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, San José, 2060, Costa Rica
| | - Marvin Molina-Rodríguez
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, San José, 2060, Costa Rica
| | - Marta Pérez-Villanueva
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, San José, 2060, Costa Rica
| | - Mario Masís-Mora
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, San José, 2060, Costa Rica
| | - Carlos E Rodríguez-Rodríguez
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, San José, 2060, Costa Rica.
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Cambronero-Heinrichs JC, Masís-Mora M, Quirós-Fournier JP, Lizano-Fallas V, Mata-Araya I, Rodríguez-Rodríguez CE. Removal of herbicides in a biopurification system is not negatively affected by oxytetracycline or fungally pretreated oxytetracycline. Chemosphere 2018; 198:198-203. [PMID: 29421730 DOI: 10.1016/j.chemosphere.2018.01.122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/16/2018] [Accepted: 01/23/2018] [Indexed: 06/08/2023]
Abstract
The disposal of agricultural antibiotic-containing wastewater in biopurification systems (BPS) employed in the treatment of pesticides, may negatively affect the removal capacity of these devices. This work aimed to employ a fungal pretreatment of oxytetracycline (OTC)-rich wastewater, before its disposal in a BPS used for the treatment of two pesticides. The fungal treatment at reactor scale (stirred tank reactor, 3L) with biomass of Trametes versicolor efficiently removed 100 mg L-1 OTC in only 60 h. However, ecotoxicity tests on seed germination with Lactuca sativa revealed that antibiotic elimination did not correlate with a decrease in toxicity. After the pretreatment, treated OTC was discarded in biomixtures used for the elimination of the herbicides ametryn and terbutryn. The co-application of treated or untreated OTC did not inhibit the removal of the herbicides; moreover, in both cases their removal seemed to be slightly enhanced in the presence of OTC or its residues, with respect to antibiotic-free biomixtures. Estimated half-lives ranged from 28.4 to 34.8 d for ametryn, and 34.0-51.0 d for terbutryn. In addition, the biomixture was also able to remove OTC in the presence of the herbicides, with an estimated half-life of 38 d. Remarkably, the toxicity of the wastewater containing OTC or treated OTC was mostly eliminated after its disposal in the biomixture. Overall results suggest that, given the high efficiency of the biomixture, the fungal pretreatment of OTC-containing wastewater is not mandatory before its disposal in the BPS.
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Affiliation(s)
| | - Mario Masís-Mora
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
| | - José Pablo Quirós-Fournier
- Centro Nacional de Innovaciones Biotecnológicas (CENIBiot), CeNAT-CONARE, 1174-1200 San José, Costa Rica
| | - Verónica Lizano-Fallas
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
| | - Iray Mata-Araya
- Centro Nacional de Innovaciones Biotecnológicas (CENIBiot), CeNAT-CONARE, 1174-1200 San José, Costa Rica
| | - Carlos E Rodríguez-Rodríguez
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica.
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8
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Jiménez-Gamboa D, Castro-Gutiérrez V, Fernández-Fernández E, Briceño-Guevara S, Masís-Mora M, Chin-Pampillo JS, Mora-López M, Carazo-Rojas E, Rodríguez-Rodríguez CE. Expanding the application scope of on-farm biopurification systems: Effect and removal of oxytetracycline in a biomixture. J Hazard Mater 2018; 342:553-560. [PMID: 28886567 DOI: 10.1016/j.jhazmat.2017.08.059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 08/18/2017] [Accepted: 08/22/2017] [Indexed: 06/07/2023]
Abstract
Antibiotic-containing wastewaters produced in agricultural activities may depress the pesticide-degrading capacity of biomixtures contained in biopurification systems. This work aimed to assay the effect of oxytetracycline (OTC) on the removal of carbofuran (CFN) in an optimized biomixture, and to determine the capacity of the system to dissipate OTC. During co-application of CFN+OTC, CFN removal and its accelerated degradation were not negatively affected. Similarly, different doses of OTC (10-500mgkg-1) did not significantly affect CFN mineralization, and the process even exhibited a hormetic-like effect. Moreover, the biomixture was able to remove OTC with a half-life of 34.0 d. DGGE-cluster analyses indicated that fungal and bacterial communities remained relatively stable during OTC application and CFN+OTC co-application, with similarities of over 70% (bacteria) and 80% (fungi). Overall, these findings support the potential use of this matrix to discard OTC-containing wastewater in this system originally intended for CFN removal.
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Affiliation(s)
- David Jiménez-Gamboa
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica (UCR), 2060 San José, Costa Rica
| | - Víctor Castro-Gutiérrez
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica (UCR), 2060 San José, Costa Rica; Centro de Investigación en Biología Celular y Molecular (CIBCM), UCR, 2060 San José, Costa Rica
| | - Ericka Fernández-Fernández
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica (UCR), 2060 San José, Costa Rica
| | - Susana Briceño-Guevara
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica (UCR), 2060 San José, Costa Rica
| | - Mario Masís-Mora
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica (UCR), 2060 San José, Costa Rica
| | - Juan Salvador Chin-Pampillo
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica (UCR), 2060 San José, Costa Rica
| | - Marielos Mora-López
- Centro de Investigación en Biología Celular y Molecular (CIBCM), UCR, 2060 San José, Costa Rica
| | - Elizabeth Carazo-Rojas
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica (UCR), 2060 San José, Costa Rica
| | - Carlos E Rodríguez-Rodríguez
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica (UCR), 2060 San José, Costa Rica.
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Murillo-Zamora S, Castro-Gutiérrez V, Masís-Mora M, Lizano-Fallas V, Rodríguez-Rodríguez CE. Elimination of fungicides in biopurification systems: Effect of fungal bioaugmentation on removal performance and microbial community structure. Chemosphere 2017; 186:625-634. [PMID: 28818589 DOI: 10.1016/j.chemosphere.2017.07.162] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 07/18/2017] [Accepted: 07/31/2017] [Indexed: 06/07/2023]
Abstract
Bioaugmentation with ligninolytic fungi represents a potential way to improve the performance of biomixtures used in biopurification systems for the treatment of pesticide-containing agricultural wastewater. The fungus Trametes versicolor was employed in the bioaugmentation of a biomixture to be used in the simultaneous removal of seven fungicides. Liquid cultures of the fungus were able to remove tebuconazole, while no evidence of carbendazim, metalaxyl and triadimenol depletion was found. When applied in the biomixture, the bioaugmented matrix failed to remove all the triazole fungicides (including tebuconazole) under the assayed conditions, but was efficient to eliminate carbendazim, edifenphos and metalaxyl (the latter only after a second pesticide application). The re-addition of pesticides markedly increased the elimination of carbendazim and metalaxyl; nonetheless, no clear enhancement of the biomixture performance could be ascribed to fungal bioaugmentation, not even after the re-inoculation of fungal biomass. Detoxification efficiently took place in the biomixture (9 d after pesticide applications) according to acute tests on Daphnia magna. DGGE-analysis revealed only moderate time-divergence in bacterial and fungal communities, and a weak establishment of T. versicolor in the matrix. Data suggest that the non-bioaugmented biomixture is useful for the treatment of fungicides other than triazoles.
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Affiliation(s)
- Sergio Murillo-Zamora
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
| | - Víctor Castro-Gutiérrez
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
| | - Mario Masís-Mora
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
| | - Verónica Lizano-Fallas
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
| | - Carlos E Rodríguez-Rodríguez
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica.
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Holmsgaard PN, Dealtry S, Dunon V, Heuer H, Hansen LH, Springael D, Smalla K, Riber L, Sørensen SJ. Response of the bacterial community in an on-farm biopurification system, to which diverse pesticides are introduced over an agricultural season. Environ Pollut 2017; 229:854-862. [PMID: 28734695 DOI: 10.1016/j.envpol.2017.07.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 07/06/2017] [Accepted: 07/08/2017] [Indexed: 06/07/2023]
Abstract
A biopurification system (BPS) is used on-farm to clean pesticide-contaminated wastewater. Due to high pesticide loads, a BPS represents a hot spot for the proliferation and selection as well as the genetic adaptation of discrete pesticide degrading microorganisms. However, while considerable knowledge exists on the biodegradation of specific pesticides in BPSs, the bacterial community composition of these systems has hardly been explored. In this work, the Shannon diversity, the richness and the composition of the bacterial community within an operational BPS receiving wastewater contaminated with various pesticides was, for the first time, elucidated over the course of an agricultural season, using DGGE profiling and pyrosequencing of 16S rRNA gene fragments amplified from total community DNA. During the agricultural season, an increase in the concentration of pesticides in the BPS was observed along with the detection of significant community changes including a decrease in microbial diversity. Additionally, a significant increase in the relative abundance of Proteobacteria, mainly the Gammaproteobacteria, was found, and OTUs (operational taxonomic units) affiliated to Pseudomonas responded positively during the course of the season. Furthermore, a banding-pattern analysis of 16S rRNA gene-based DGGE fingerprinting, targeting the Alpha- and Betaproteobacteria as well as the Actinobacteria, indicated that the Betaproteobacteria might play an important role. Interestingly, a decrease of Firmicutes and Bacteroidetes was observed, indicating their selective disadvantage in a BPS, to which pesticides have been introduced.
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Affiliation(s)
- Peter N Holmsgaard
- Section for Microbiology, Department of Biology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark
| | - Simone Dealtry
- Julius Kühn-Institut - Federal Research Centre for Cultivated Plants (JKI), Institute for Epidemiology and Pathogen Diagnostics, 38104 Braunschweig, Germany; Civil Engineering Department, Catholic University of Rio de Janeiro, Rua Marquês de São Vicente 225/301-L, Gávea, 22453-900 Rio de Janeiro, RJ, Brazil
| | - Vincent Dunon
- Division of Soil and Water Management, KULeuven, 3001 Leuven, Belgium
| | - Holger Heuer
- Julius Kühn-Institut - Federal Research Centre for Cultivated Plants (JKI), Institute for Epidemiology and Pathogen Diagnostics, 38104 Braunschweig, Germany
| | - Lars H Hansen
- Section for Microbiology, Department of Biology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark; Department of Environmental Science, Aarhus University, Frederiksborgvej 399, DK-4000 Roskilde, Denmark
| | - Dirk Springael
- Division of Soil and Water Management, KULeuven, 3001 Leuven, Belgium
| | - Kornelia Smalla
- Julius Kühn-Institut - Federal Research Centre for Cultivated Plants (JKI), Institute for Epidemiology and Pathogen Diagnostics, 38104 Braunschweig, Germany
| | - Leise Riber
- Section for Microbiology, Department of Biology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark.
| | - Søren J Sørensen
- Section for Microbiology, Department of Biology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark
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11
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Elgueta S, Correa A, Campo M, Gallardo F, Karpouzas D, Diez MC. Atrazine, chlorpyrifos, and iprodione effect on the biodiversity of bacteria, actinomycetes, and fungi in a pilot biopurification system with a green cover. J Environ Sci Health B 2017; 52:651-657. [PMID: 28594308 DOI: 10.1080/03601234.2017.1330070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The use of biopurification systems can mitigate the effects of pesticide contamination on farms. The primary aim of this study was to evaluate the effect of pesticide dissipation on microbial communities in a pilot biopurification system. The pesticide dissipation of atrazine, chlorpyrifos and iprodione (35 mg kg-1 active ingredient [a.i.]) and biological activity were determined for 40 days. The microbial communities (bacteria, actinomycetes and fungi) were analyzed using denaturing gradient gel electrophoresis (DGGE). In general, pesticide dissipation was the highest by day 5 and reached 95%. The pesticides did not affect biological activity during the experiment. The structure of the actinomycete and bacterial communities in the rhizosphere was more stable during the evaluation than that in the communities in the control without pesticides. The rhizosphere fungal communities, detected using DGGE, showed small and transitory shifts with time. To conclude, rhizosphere microbial communities were not affected during pesticide dissipation in a pilot biopurification system.
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Affiliation(s)
- Sebastian Elgueta
- a Biotechnological Research Center Applied to the Environment (CIBAMA) , Universidad de La Frontera , Temuco , Chile
- b Department of Environment and Sustainability , Instituto de Investigaciones Agropecuarias, CRI La Platina , Santiago , Chile
| | - Arturo Correa
- b Department of Environment and Sustainability , Instituto de Investigaciones Agropecuarias, CRI La Platina , Santiago , Chile
| | - Marco Campo
- a Biotechnological Research Center Applied to the Environment (CIBAMA) , Universidad de La Frontera , Temuco , Chile
| | - Felipe Gallardo
- a Biotechnological Research Center Applied to the Environment (CIBAMA) , Universidad de La Frontera , Temuco , Chile
| | - Dimitrios Karpouzas
- d Department of Biochemistry and Biotechnology , University of Thessaly , Larissa , Viopolis , Greece
| | - Maria Cristina Diez
- a Biotechnological Research Center Applied to the Environment (CIBAMA) , Universidad de La Frontera , Temuco , Chile
- c Chemical Engineering Department , University of La Frontera , Temuco , Chile
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12
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Diez MC, Elgueta S, Rubilar O, Tortella GR, Schalchli H, Bornhardt C, Gallardo F. Pesticide dissipation and microbial community changes in a biopurification system: influence of the rhizosphere. Biodegradation 2017; 28:395-412. [PMID: 28780760 DOI: 10.1007/s10532-017-9804-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 07/20/2017] [Indexed: 11/28/2022]
Abstract
The dissipation of atrazine, chlorpyrifos and iprodione in a biopurification system and changes in the microbial and some biological parameters influenced by the rhizosphere of Lolium perenne were studied in a column system packed with an organic biomixture. Three column depths were analyzed for residual pesticides, peroxidase, fluorescein diacetate activity and microbial communities. Fungal colonization was analyzed by confocal laser scanning microscopy to assess the extent of its proliferation in wheat straw. The L. perenne rhizosphere enhanced pesticide dissipation and negligible pesticide residues were detected at 20-30 cm column depth. Atrazine, chlorpyrifos and iprodione removal was 82, 89 and 74% respectively in the first 10 cm depth for columns with vegetal cover. The presence of L. perenne in contaminated columns stimulated peroxidase activity in all three column depth sections. Fluorescein diacetate activity decreased over time in all column sections with the highest values in biomixtures with vegetal cover. Microbial communities, analyzed by PCR-DGGE, were not affected by the pesticide mixture application, presenting high values of similarity (>65%) with and without vegetal cover. Microbial abundance of Actinobacteria varied according to treatment and no clear link was observed. However, bacterial abundance increased over time and was similar with and without vegetal cover. On the other hand, fungal abundance decreased in all sections of columns after 40 days, but an increase was observed in response to pesticide application. Fungal colonization and straw degradation during pesticide dissipation were verified by monitoring the lignin autofluorescence loss.
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Affiliation(s)
- M C Diez
- Chemical Engineering Department, Universidad de La Frontera, Temuco, Chile. .,Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile.
| | - S Elgueta
- Chemical Science and Natural Resource Department, Universidad de La Frontera, Temuco, Chile
| | - O Rubilar
- Chemical Engineering Department, Universidad de La Frontera, Temuco, Chile.,Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile
| | - G R Tortella
- Chemical Engineering Department, Universidad de La Frontera, Temuco, Chile.,Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile
| | - H Schalchli
- Chemical Engineering Department, Universidad de La Frontera, Temuco, Chile.,Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile
| | - C Bornhardt
- Chemical Engineering Department, Universidad de La Frontera, Temuco, Chile.,Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile
| | - F Gallardo
- Chemical Science and Natural Resource Department, Universidad de La Frontera, Temuco, Chile.,Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile
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13
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Huete-Soto A, Masís-Mora M, Lizano-Fallas V, Chin-Pampillo JS, Carazo-Rojas E, Rodríguez-Rodríguez CE. Simultaneous removal of structurally different pesticides in a biomixture: Detoxification and effect of oxytetracycline. Chemosphere 2017; 169:558-567. [PMID: 27898329 DOI: 10.1016/j.chemosphere.2016.11.106] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 10/28/2016] [Accepted: 11/20/2016] [Indexed: 06/06/2023]
Abstract
The biopurification systems (BPS) used for the treatment of pesticide-containing wastewater must present a versatile degrading ability, in order to remove different active ingredients according to the crop protection programs. This work aimed to assay the simultaneous removal of several pesticides (combinations of herbicides/insecticides/fungicides, or insecticides/fungicides) in a biomixture used in a BPS over a period of 115 d, and in the presence of oxytetracycline (OTC), an antibiotic of agricultural use that could be present in wastewater from agricultural pesticide application practices. The biomixture was able to mostly remove the herbicides during the treatment (removal rates: atrazine ≈ linuron > ametryn), and suffered no inhibition by OTC (only slightly for ametryn). Two fungicides (carbendazim and metalaxyl) were removed, nonetheless, in the systems containing only fungicides and insecticides, a clear increase in their half-lives was obtained in the treatments containing OTC. The neonicotinoid insecticides (imidacloprid and thiamethoxam) and the triazole fungicides (tebuconazole and triadimenol) were not significantly eliminated in the biomixture. Globally, the total removal of active ingredients ranged from 40.9% to 61.2% depending on the system, following the pattern: herbicides > fungicides > insecticides. The ecotoxicological analysis of the process revealed no detoxification towards the microcrustacean Daphnia magna, but a significant decay in the phytotoxicity towards Lactuca sativa in some cases, according to seed germination tests; in this case, OTC proved to be partially responsible for the phytotoxicity. The patterns of pesticide removal and detoxification provide inputs for the improvement of BPS use and their relevance as devices for wastewater treatment according to specific pesticide application programs.
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Affiliation(s)
- Alejandra Huete-Soto
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
| | - Mario Masís-Mora
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
| | - Verónica Lizano-Fallas
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
| | - Juan Salvador Chin-Pampillo
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
| | - Elizabeth Carazo-Rojas
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
| | - Carlos E Rodríguez-Rodríguez
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica.
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14
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Rodríguez-Rodríguez CE, Madrigal-León K, Masís-Mora M, Pérez-Villanueva M, Chin-Pampillo JS. Removal of carbamates and detoxification potential in a biomixture: Fungal bioaugmentation versus traditional use. Ecotoxicol Environ Saf 2017; 135:252-258. [PMID: 27750092 DOI: 10.1016/j.ecoenv.2016.10.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 09/26/2016] [Accepted: 10/06/2016] [Indexed: 06/06/2023]
Abstract
The use of fungal bioaugmentation represents a promising way to improve the performance of biomixtures for the elimination of pesticides. The ligninolyitc fungus Trametes versicolor was employed for the removal of three carbamates (aldicarb, ALD; methomyl, MTM; and methiocarb, MTC) in defined liquid medium; in this matrix ALD and MTM showed similar half-lives (14d), nonetheless MTC exhibited a faster removal, with a half-life of 6.5d. Then the fungus was employed in the bioaugmentation of an optimized biomixture to remove the aforementioned carbamates plus carbofuran (CFN). Bioaugmented and non-bioaugmented systems removed over 99% ALD and MTM after 8d of treatment, nonetheless a slight initial delay in the removal was observed in the bioaugmented biomixtures (removal after 3d: ALD 87%/97%; MTM 86%/99%, in bioaugmented/non-bioaugmented systems). The elimination of the other carbamates was slower, but independent of the presence of the fungus: >98% for MTM after 35d and >99.5% for CFN after 22d. Though the bioaugmentation did not improve the removal capacity of the biomixture, it favored a lower production of transformation products at the first stages of the treatment, and in both cases, a marked decrease in the toxicity of the matrix was swiftly achieved along the process (from 435 to 448 TU to values <1TU in 16d).
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Affiliation(s)
- Carlos E Rodríguez-Rodríguez
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica.
| | - Karina Madrigal-León
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
| | - Mario Masís-Mora
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
| | - Marta Pérez-Villanueva
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
| | - Juan Salvador Chin-Pampillo
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
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15
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Elgueta S, Santos C, Lima N, Diez MC. Immobilization of the white-rot fungus Anthracophyllum discolor to degrade the herbicide atrazine. AMB Express 2016; 6:104. [PMID: 27815917 DOI: 10.1186/s13568-016-0275-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 10/27/2016] [Indexed: 11/10/2022] Open
Abstract
Herbicides cause environmental concerns because they are toxic and accumulate in the environment, food products and water supplies. There is a need to develop safe, efficient and economical methods to remove them from the environment, often by biodegradation. Atrazine is such herbicide. White-rot fungi have the ability to degrade herbicides of potential utility. This study formulated a novel pelletized support to immobilize the white-rot fungus Anthracophyllum discolor to improve its capability to degrade the atrazine using a biopurification system (BS). Different proportions of sawdust, starch, corn meal and flaxseed were used to generate three pelletized supports (F1, F2 and F3). In addition, immobilization with coated and uncoated pelletized supports (CPS and UPS, respectively) was assessed. UPS-F1 was determined as the most effective system as it provided high level of manganese peroxidase activity and fungal viability. The half-life (t1/2) of atrazine decreased from 14 to 6 days for the control and inoculated samples respectively. Inoculation with immobilized A. discolor produced an increase in the fungal taxa assessed by DGGE and on phenoloxidase activity determined. The treatment improves atrazine degradation and reduces migration to surface and groundwater.
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16
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Chin-Pampillo JS, Masís-Mora M, Ruiz-Hidalgo K, Carazo-Rojas E, Rodríguez-Rodríguez CE. Removal of carbofuran is not affected by co-application of chlorpyrifos in a coconut fiber/compost based biomixture after aging or pre-exposure. J Environ Sci (China) 2016; 46:182-189. [PMID: 27521950 DOI: 10.1016/j.jes.2015.12.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 11/18/2015] [Accepted: 12/25/2015] [Indexed: 06/06/2023]
Abstract
Biomixtures constitute the biologically active part of biopurification systems (BPS), which are used to treat pesticide-containing wastewater. The aim of this work was to determine whether co-application of chlorpyrifos (CLP) affects the removal of carbofuran (CFN) (both insecticide/nematicides) in a coconut fiber-compost-soil biomixture (FCS biomixture), after aging or previous exposure to CFN. Removal of CFN and two of its transformation products (3-hydroxycarbofuran and 3-ketocarbofuran) was enhanced in pre-exposed biomixtures in comparison to aged biomixtures. The co-application of CLP did not affect CFN removal, which suggests that CLP does not inhibit microbial populations in charge of CFN transformation. Contrary to the removal behavior, mineralization of radiolabeled (14)C-pesticides showed higher mineralization rates of CFN in aged biomixtures (with respect to freshly prepared or pre-exposed biomixtures). In the case of CLP, mineralization was favored in freshly prepared biomixtures, which could be ascribed to high sorption during aging and microbial inhibition by CFN in pre-exposure. Regardless of removal and mineralization results, toxicological assays revealed a steep decrease in the acute toxicity of the matrix on the microcrustacean Daphnia magna (over 97%) after 8days of treatment of individual pesticides or the mixture CFN/CLP. Results suggest that FCS biomixtures are suitable to be used in BPS for the treatment of wastewater in fields where both pesticides are employed.
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Affiliation(s)
| | - Mario Masís-Mora
- Research Center of Environmental Contamination (CICA), University of Costa Rica, 2060 San José, Costa Rica
| | - Karla Ruiz-Hidalgo
- Research Center of Environmental Contamination (CICA), University of Costa Rica, 2060 San José, Costa Rica
| | - Elizabeth Carazo-Rojas
- Research Center of Environmental Contamination (CICA), University of Costa Rica, 2060 San José, Costa Rica
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17
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Ruíz-Hidalgo K, Masís-Mora M, Barbieri E, Carazo-Rojas E, Rodríguez-Rodríguez CE. Ecotoxicological analysis during the removal of carbofuran in fungal bioaugmented matrices. Chemosphere 2016; 144:864-871. [PMID: 26421626 DOI: 10.1016/j.chemosphere.2015.09.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 09/11/2015] [Accepted: 09/14/2015] [Indexed: 06/05/2023]
Abstract
Biomixtures are used for the removal of pesticides from agricultural wastewater. As biomixtures employ high content of lignocellulosic substrates, their bioaugmentation with ligninolytic fungi represents a novel approach for their enhancement. Nonetheless, the decrease in the concentration of the pesticide may result in sublethal concentrations that still affect ecosystems. Two matrices, a microcosm of rice husk (lignocellulosic substrate) bioaugmented with the fungus Trametes versicolor and a biomixture that contained fungally colonized rice husk were used in the degradation of the insecticide/nematicide carbofuran (CFN). Elutriates simulating lixiviates from these matrices were used to assay the ecotoxicological effects at sublethal level over Daphnia magna (Straus) and the fish Oreochromis aureus (Steindachner) and Oncorhynchus mykiss (Walbaum). Elutriates obtained after 30 d of treatment in the rice husk microcosms at dilutions over 2.5% increased the offspring of D. magna as a trade-off stress response, and produced mortality of neonates at dilutions over 5%. Elutriates (dilution 1:200) obtained during a 30 d period did not produce alterations on the oxygen consumption and ammonium excretion of O. mykiss, however these physiological parameters were affected in O. aureus at every time point of treatment, irrespective of the decrease in CFN concentration. When the fungally colonized rice husk was used to prepare a biomixture, where more accelerated degradation is expected, similar alterations on the responses by O. aureus were achieved. Results suggest that despite the good removal of the pesticide, it is necessary to optimize biomixtures to minimize their residual toxicity and potential chronic effects on aquatic life.
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Affiliation(s)
- Karla Ruíz-Hidalgo
- Research Center of Environmental Pollution (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
| | - Mario Masís-Mora
- Research Center of Environmental Pollution (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
| | - Edison Barbieri
- Instituto de Pesca-APTA-SAA/SP, Caixa Postal 157, Cananéia 11990-000, São Paulo, Brazil
| | - Elizabeth Carazo-Rojas
- Research Center of Environmental Pollution (CICA), Universidad de Costa Rica, 2060 San José, Costa Rica
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Chin-Pampillo JS, Ruiz-Hidalgo K, Masís-Mora M, Carazo-Rojas E, Rodríguez-Rodríguez CE. Design of an optimized biomixture for the degradation of carbofuran based on pesticide removal and toxicity reduction of the matrix. Environ Sci Pollut Res Int 2015; 22:19184-19193. [PMID: 26250812 DOI: 10.1007/s11356-015-5093-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 07/16/2015] [Indexed: 06/04/2023]
Abstract
Pesticide biopurification systems contain a biologically active matrix (biomixture) responsible for the accelerated elimination of pesticides in wastewaters derived from pest control in crop fields. Biomixtures have been typically prepared using the volumetric composition 50:25:25 (lignocellulosic substrate/humic component/soil); nonetheless, formal composition optimization has not been performed so far. Carbofuran is an insecticide/nematicide of high toxicity widely employed in developing countries. Therefore, the composition of a highly efficient biomixture (composed of coconut fiber, compost, and soil, FCS) for the removal of carbofuran was optimized by means of a central composite design and response surface methodology. The volumetric content of soil and the ratio coconut fiber/compost were used as the design variables. The performance of the biomixture was assayed by considering the elimination of carbofuran, the mineralization of (14)C-carbofuran, and the residual toxicity of the matrix, as response variables. Based on the models, the optimal volumetric composition of the FCS biomixture consists of 45:13:42 (coconut fiber/compost/soil), which resulted in minimal residual toxicity and ∼99% carbofuran elimination after 3 days. This optimized biomixture considerably differs from the standard 50:25:25 composition, which remarks the importance of assessing the performance of newly developed biomixtures during the design of biopurification systems.
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Affiliation(s)
- Juan Salvador Chin-Pampillo
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060, San José, Costa Rica
| | - Karla Ruiz-Hidalgo
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060, San José, Costa Rica
| | - Mario Masís-Mora
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060, San José, Costa Rica
| | - Elizabeth Carazo-Rojas
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060, San José, Costa Rica
| | - Carlos E Rodríguez-Rodríguez
- Centro de Investigación en Contaminación Ambiental (CICA), Universidad de Costa Rica, 2060, San José, Costa Rica.
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Martini MC, Albicoro FJ, Nour E, Schlüter A, van Elsas JD, Springael D, Smalla K, Pistorio M, Lagares A, Del Papa MF. Characterization of a collection of plasmid-containing bacteria isolated from an on-farm biopurification system used for pesticide removal. Plasmid 2015; 80:16-23. [PMID: 25957823 DOI: 10.1016/j.plasmid.2015.05.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 04/24/2015] [Accepted: 05/01/2015] [Indexed: 11/21/2022]
Abstract
Biopurification systems (BPS) are complex soil-related and artificially-generated environments usually designed for the removal of toxic compounds from contaminated wastewaters. The present study has been conducted to isolate and characterize a collection of cultivable plasmid-carrying bacterial isolates recovered from a BPS established for the decontamination of wastewater generated in a farmyard. Out of 1400 isolates, a collection of 75 plasmid-containing bacteria was obtained, of which 35 representative isolates comprising in total at least 50 plasmids were chosen for further characterization. Bacterial hosts were taxonomically assigned by 16S ribosomal RNA gene sequencing and phenotypically characterized according to their ability to grow in presence of different antibiotics and heavy metals. The study demonstrated that a high proportion of the isolates was tolerant to antibiotics and/or heavy metals, highlighting the on-farm BPS enrichment in such genetic traits. Several plasmids conferring such resistances in the bacterial collection were detected to be either mobilizable or selftransmissible. Occurrence of broad host range plasmids of the incompatibility groups IncP, IncQ, IncN and IncW was examined with positive results only for the first group. Presence of the IS1071 insertion sequence, frequently associated with xenobiotics degradation genes, was detected in DNA obtained from 24 of these isolates, strongly suggesting the presence of yet-hidden catabolic activities in the collection of isolates. The results showed a remarkable diversity in the plasmid mobilome of cultivable bacteria in the BPS with the presence of abundant resistance markers of different types, thus providing a suitable environment to investigate the genetic structure of the mobile genetic pool in a model on-farm biofilter for wastewater decontamination in intensive agricultural production.
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Tortella GR, Mella-Herrera RA, Sousa DZ, Rubilar O, Acuña JJ, Briceño G, Diez MC. Atrazine dissipation and its impact on the microbial communities and community level physiological profiles in a microcosm simulating the biomixture of on-farm biopurification system. J Hazard Mater 2013; 260:459-467. [PMID: 23811367 DOI: 10.1016/j.jhazmat.2013.05.059] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 04/23/2013] [Accepted: 05/23/2013] [Indexed: 06/02/2023]
Abstract
The effects of repeated atrazine application (40 mg a.i.kg(-1)) on its degradation, microbial communities and enzyme activities were studied in a peat based biomixture composed by straw, soil and peat in the volumetric proportions of 2:1:1 that can be used in on-farm biopurification system. Atrazine removal efficiency was high (96%, 78% and 96%) after each atrazine application and did not show a lag phase. Microbial enzyme activities were reduced significantly with atrazine application but rapidly recovered. Microbial diversity obtained by BiologEcoplate was similar after the first and second atrazine application. However, an inhibitory effect was observed after the third application. After each atrazine application, culturable fungi were reduced, but rapidly recovered without significant changes in culturable bacteria and actinomycetes compared to the control. Denaturing gradient gel electrophoresis (DGGE) patterns demonstrated that microbial community structure remained relatively stable in time when compared to the controls. In conclusion, our results demonstrated that after successive ATZ applications, the peat based biomixture had a good degradation capacity. Moreover, microbiological assays demonstrated the robustness of the peat based biomixture from a microbiological point of view to support pesticide degradation.
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Affiliation(s)
- G R Tortella
- Nucleo Científico Tecnológico en Biorecursos, Universidad de La Frontera, Casilla 54-D, Temuco, Chile.
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