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Li T, Li J, Wang J, Xue KS, Su X, Qu H, Duan X, Jiang Y. The occurrence and management of fumonisin contamination across the food production and supply chains. J Adv Res 2024; 60:13-26. [PMID: 37544477 PMCID: PMC11156612 DOI: 10.1016/j.jare.2023.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 04/05/2023] [Accepted: 08/02/2023] [Indexed: 08/08/2023] Open
Abstract
BACKGROUND Fumonisins (FUMs) are among the most common mycotoxins in plant-derived food products. FUMs contamination has considerably impacted human and animal health, while causing significant economic losses. Hence, management of FUMs contamination in food production and supply chains is needed. The toxicities of FUMs have been widely investigated. FUMs management has been reported and several available strategies have been developed successfully to mitigate FUMs contamination present in foods. However, currently available management of FUMs contamination from different phases of food chains and the mechanisms of some major strategies are not comprehensively summarized. AIM OF REVIEW This review comprehensively characterize the occurrence, impacts, and management of FUMs contamination across food production and supply chains. Pre- and post-harvest strategies to prevent FUMs contamination also are reviewed, with an emphasis on the potential applications and the mechanisms of major mitigation strategies. The presence of modified FUMs products and their potential toxic effects are also considered. Importantly, the potential application of biotechnological approaches and emerging technologies are enunciated. KEY SCIENTIFIC CONCEPTS OF REVIEW Currently available pre- and post-harvest management of FUMs contamination primarily involves prevention and decontamination. Prevention strategies are mainly based on limiting fungal growth and FUMs biosynthesis. Decontamination strategies are implemented through alkalization, hydrolysis, thermal or chemical transformation, and enzymatic or chemical degradation of FUMs. Concerns have been raised about toxicities of modified FUMs derivatives, which presents challenges for reducing FUMs contamination in foods with conventional methodologies. Integrated prevention and decontamination protocols are recommended to control FUMs contamination across entire value chains in developed countries. In developing countries, several other approaches, including cultivating, introducing Bt maize, simple sorting/cleaning, and dehulling, are suggested. Future studies should focus on biotechnological approaches, emerging technologies, and metagenomic/genomic identification of new degradation enzymes that could allow better opportunities to manage FUMs contamination in the entire food system.
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Affiliation(s)
- Taotao Li
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Jiajia Li
- College of Tourism and Planning, Pingdingshan University, Pingdingshan 467000, China
| | - Jiasheng Wang
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA, USA.
| | - Kathy S Xue
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA, USA
| | - Xinguo Su
- Tropical Agriculture and Forestry College, Guangdong AIB Polytechnic, No. 198, Yueken Road, Tianhe District, Guangzhou 510507, China
| | - Hongxia Qu
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Xuewu Duan
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Yueming Jiang
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; College of Advanced Agricultural Sciences, University of the Chinese Academy of Sciences, Beijing 100039, China.
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Gomes AL, Petrus RR, de Sousa RLM, Fernandes AM. Aflatoxins and fumonisins in conventional and organic corn: a comprehensive review. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2024; 41:575-586. [PMID: 38530071 DOI: 10.1080/19440049.2024.2330092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/06/2024] [Indexed: 03/27/2024]
Abstract
This review analyzes the occurrence and co-exposure of aflatoxins and fumonisins in conventional and organic corn, and compares the vulnerability to contamination of both. The risks of fungal contamination in corn are real, mainly by the genera Aspergillus and Fusarium, producers of aflatoxins and fumonisins, respectively. Aflatoxins, especially AFB1, are related to a high incidence of liver cancer, and the International Agency Research of Cancer (IARC) classified them in group 1A 'carcinogenic to humans'. The occurrence in conventional corn is reported in many countries, including at higher levels than those established by legislation. IARC classified fumonisins in group 2B 'possibly carcinogenic to humans' due to their link with incidence of esophageal cancer. However, comparing corn and organic and conventional by-products from different regions, different results are observed. The co-occurrence of both mycotoxins is a worldwide problem; nevertheless, there is little data on the comparison of the co-exposure of these mycotoxins in corn and derivatives between both systems. It was found that the agricultural system is not a decisive factor in the final contamination, indicating the necessity of effective strategies to reduce contamination and co-exposure at levels that do not pose health risks.
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Affiliation(s)
- Amanda L Gomes
- Universidade de Sao Paulo Faculdade de Zootecnia e Engenharia de Alimentos, Brazil
| | - Rodrigo R Petrus
- Universidade de Sao Paulo Faculdade de Zootecnia e Engenharia de Alimentos, Brazil
| | - Ricardo L M de Sousa
- Universidade de Sao Paulo Faculdade de Zootecnia e Engenharia de Alimentos, Brazil
| | - Andrezza M Fernandes
- Universidade de Sao Paulo Faculdade de Zootecnia e Engenharia de Alimentos, Brazil
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3
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Todorović I, Moënne-Loccoz Y, Raičević V, Jovičić-Petrović J, Muller D. Microbial diversity in soils suppressive to Fusarium diseases. FRONTIERS IN PLANT SCIENCE 2023; 14:1228749. [PMID: 38111879 PMCID: PMC10726057 DOI: 10.3389/fpls.2023.1228749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 11/10/2023] [Indexed: 12/20/2023]
Abstract
Fusarium species are cosmopolitan soil phytopathogens from the division Ascomycota, which produce mycotoxins and cause significant economic losses of crop plants. However, soils suppressive to Fusarium diseases are known to occur, and recent knowledge on microbial diversity in these soils has shed new lights on phytoprotection effects. In this review, we synthesize current knowledge on soils suppressive to Fusarium diseases and the role of their rhizosphere microbiota in phytoprotection. This is an important issue, as disease does not develop significantly in suppressive soils even though pathogenic Fusarium and susceptible host plant are present, and weather conditions are suitable for disease. Soils suppressive to Fusarium diseases are documented in different regions of the world. They contain biocontrol microorganisms, which act by inducing plants' resistance to the pathogen, competing with or inhibiting the pathogen, or parasitizing the pathogen. In particular, some of the Bacillus, Pseudomonas, Paenibacillus and Streptomyces species are involved in plant protection from Fusarium diseases. Besides specific bacterial populations involved in disease suppression, next-generation sequencing and ecological networks have largely contributed to the understanding of microbial communities in soils suppressive or not to Fusarium diseases, revealing different microbial community patterns and differences for a notable number of taxa, according to the Fusarium pathosystem, the host plant and the origin of the soil. Agricultural practices can significantly influence soil suppressiveness to Fusarium diseases by influencing soil microbiota ecology. Research on microbial modes of action and diversity in suppressive soils should help guide the development of effective farming practices for Fusarium disease management in sustainable agriculture.
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Affiliation(s)
- Irena Todorović
- Université Claude Bernard Lyon 1, CNRS, INRAE, VetAgro Sup, UMR5557 Ecologie Microbienne, Villeurbanne, France
- University of Belgrade, Faculty of Agriculture, Belgrade, Serbia
| | - Yvan Moënne-Loccoz
- Université Claude Bernard Lyon 1, CNRS, INRAE, VetAgro Sup, UMR5557 Ecologie Microbienne, Villeurbanne, France
| | - Vera Raičević
- University of Belgrade, Faculty of Agriculture, Belgrade, Serbia
| | | | - Daniel Muller
- Université Claude Bernard Lyon 1, CNRS, INRAE, VetAgro Sup, UMR5557 Ecologie Microbienne, Villeurbanne, France
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Mendonça CMN, Oliveira RC, Pizauro LJL, Pereira WA, Abboud K, Almeida S, Watanabe IS, Varani AM, Domínguez JM, Correa B, Venema K, Azevedo POS, Oliveira RPS. Tracking new insights into antifungal and anti-mycotoxigenic properties of a biofilm forming Pediococcus pentosaceus strain isolated from grain silage. Int J Food Microbiol 2023; 405:110337. [PMID: 37506547 DOI: 10.1016/j.ijfoodmicro.2023.110337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/26/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023]
Abstract
The present study offers detailed insights into the antifungal and anti-mycotoxigenic potential of a biofilm forming lactic acid bacterium (Pediococcus pentosaceus) against one atoxigenic (Aspergillus flavus) and two toxigenic (Aspergillus nomius and Fusarium verticillioides) fungal strains. The antifungal effect of P. pentosaceus LBM18 strain was initially investigated through comparative analysis of fungi physiology by macroscopic visual evaluations and scanning electron microscopy examinations. The effects over fungal growth rate and asexual sporulation were additionally accessed. Furthermore, analytical evaluations of mycotoxin production were carried out by HPLC-MS/MS to provide insights on the bacterial anti-mycotoxigenic activity over fungal production of the aflatoxins B1, B2, G1 and G2 as well as fumonisins B1 and B2. Finally, reverse transcription quantitative real-time PCR (RT-qPCR) analysis was employed at the most effective bacterial inoculant concentration to evaluate, at the molecular level, the down-regulation of genes aflR, aflQ and aflD, related to the biosynthesis of aflatoxins by the strain of Aspergillus nomius. The effects over mycotoxin contamination were thought to be result of a combination of several biotic and abiotic factors, such as interaction between living beings and physical-chemical aspects of the environment, respectively. Several possible mechanisms of action were addressed along with potentially deleterious effects ascribing from P. pentosaceus misuse as biopesticide, emphasizing the importance of evaluating lactic acid bacteria safety in new applications, concentrations, and exposure scenarios.
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Affiliation(s)
- Carlos M N Mendonça
- Laboratory of Microbial Biomolecules, Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil; Centre for Healthy Eating and Food Innovation (HEFI), Faculty of Science and Engineering, Maastricht University - campus Venlo, Villafloraweg 1, 5928 SZ Venlo, the Netherlands
| | - Rodrigo C Oliveira
- Laboratory of Microbial Biomolecules, Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil
| | - Lucas J L Pizauro
- Department of Agricultural and Environmental Biotechnology, School of Agricultural and Veterinary Sciences (FCAV), UNESP, Jaboticabal, Brazil
| | - Wellison A Pereira
- Laboratory of Microbial Biomolecules, Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil
| | - Kahlile Abboud
- Department of Agricultural and Environmental Biotechnology, School of Agricultural and Veterinary Sciences (FCAV), UNESP, Jaboticabal, Brazil
| | - Sonia Almeida
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, 05508-000 São Paulo, Brazil
| | - Ii-Sei Watanabe
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, 05508-000 São Paulo, Brazil
| | - Alessandro M Varani
- Department of Agricultural and Environmental Biotechnology, School of Agricultural and Veterinary Sciences (FCAV), UNESP, Jaboticabal, Brazil
| | - José M Domínguez
- Industrial Biotechnology and Environmental Engineering Group "BiotecnIA", Chemical Engineering Department, University of Vigo (Campus Ourense), As Lagoas s/n, 32004 Ourense, Spain
| | - Benedito Correa
- Laboratory of Mycotoxins and Toxigenic Fungi, Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, 05508-900 São Paulo, Brazil
| | - Koen Venema
- Department of Agricultural and Environmental Biotechnology, School of Agricultural and Veterinary Sciences (FCAV), UNESP, Jaboticabal, Brazil
| | - Pamela O S Azevedo
- Laboratory of Microbial Biomolecules, Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil; SAZ Animal Nutrition, São Paulo, Brazil
| | - Ricardo P S Oliveira
- Laboratory of Microbial Biomolecules, Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil.
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Song Y, Liu X, Feng S, Zhao K, Qi Z, Wu W, Xiao J, Xu H, Ran M, Qin B. Discovery, Identification, and Insecticidal Activity of an Aspergillus flavus Strain Isolated from a Saline-Alkali Soil Sample. Microorganisms 2023; 11:2788. [PMID: 38004799 PMCID: PMC10673062 DOI: 10.3390/microorganisms11112788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/04/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
Aphids are one of the most destructive pests in agricultural production. In addition, aphids are able to easily develop resistance to chemical insecticides due to their rapid reproduction and short generation periods. To explore an effective and environmentally friendly aphid control strategy, we isolated and examined a fungus with aphid-parasitizing activity. The strain (YJNfs21.11) was identified as Aspergillus flavus by ITS, 28S, and BenA gene sequence analysis. Scanning electron microscopy and transmission electron microscopy revealed that the infection hyphae of 'YJNfs21.11' colonized and penetrated the aphid epidermal layer and subsequently colonized the body cavity. Field experiments showed that 'YJNfs21.11' and its fermentation products exerted considerable control on aphids, with a corrected efficacy of 96.87%. The lipase, protease, and chitinase secreted by fungi help aphid cuticle degradation, thus assisting spores in completing the infection process. Additionally, changes were observed in the mobility and physical signs of aphids, with death occurring within 60 h of infection. Our results demonstrate that A. flavus 'YJNfs21.11' exhibits considerable control on Aphis gossypii Glover and Hyalopterus arundimis Fabricius, making it a suitable biological control agent.
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Affiliation(s)
- Yuxin Song
- College of Life Sciences, Northwest A&F University, Xianyang 712100, China; (Y.S.); (X.L.); (S.F.); (K.Z.); (J.X.); (H.X.); (M.R.)
| | - Xiaoli Liu
- College of Life Sciences, Northwest A&F University, Xianyang 712100, China; (Y.S.); (X.L.); (S.F.); (K.Z.); (J.X.); (H.X.); (M.R.)
| | - Shirong Feng
- College of Life Sciences, Northwest A&F University, Xianyang 712100, China; (Y.S.); (X.L.); (S.F.); (K.Z.); (J.X.); (H.X.); (M.R.)
| | - Kangbo Zhao
- College of Life Sciences, Northwest A&F University, Xianyang 712100, China; (Y.S.); (X.L.); (S.F.); (K.Z.); (J.X.); (H.X.); (M.R.)
| | - Zhijun Qi
- College of Plant Protection, Northwest A&F University, Xianyang 712100, China; (Z.Q.); (W.W.)
| | - Wenjun Wu
- College of Plant Protection, Northwest A&F University, Xianyang 712100, China; (Z.Q.); (W.W.)
- Institute of Pesticides, Northwest A&F University, Xianyang 712100, China
| | - Jie Xiao
- College of Life Sciences, Northwest A&F University, Xianyang 712100, China; (Y.S.); (X.L.); (S.F.); (K.Z.); (J.X.); (H.X.); (M.R.)
| | - Hong Xu
- College of Life Sciences, Northwest A&F University, Xianyang 712100, China; (Y.S.); (X.L.); (S.F.); (K.Z.); (J.X.); (H.X.); (M.R.)
| | - Mingwei Ran
- College of Life Sciences, Northwest A&F University, Xianyang 712100, China; (Y.S.); (X.L.); (S.F.); (K.Z.); (J.X.); (H.X.); (M.R.)
| | - Baofu Qin
- College of Life Sciences, Northwest A&F University, Xianyang 712100, China; (Y.S.); (X.L.); (S.F.); (K.Z.); (J.X.); (H.X.); (M.R.)
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Multiple Year Influences of the Aflatoxin Biocontrol Product AF-X1 on the A. flavus Communities Associated with Maize Production in Italy. Toxins (Basel) 2023; 15:toxins15030184. [PMID: 36977075 PMCID: PMC10057891 DOI: 10.3390/toxins15030184] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/16/2023] [Accepted: 02/24/2023] [Indexed: 03/06/2023] Open
Abstract
AF-X1 is a commercial aflatoxin biocontrol product containing the non-aflatoxigenic (AF-) strain of Aspergillus flavus MUCL54911 (VCG IT006), endemic to Italy, as an active ingredient. The present study aimed to evaluate the long-term persistence of VCG IT006 in the treated fields, and the multi-year influence of the biocontrol application on the A. flavus population. Soil samples were collected in 2020 and 2021 from 28 fields located in four provinces in north Italy. A vegetative compatibility analysis was conducted to monitor the occurrence of VCG IT006 on the total of the 399 isolates of A. flavus that were collected. IT006 was present in all the fields, mainly in the fields treated for 1 yr or 2 consecutive yrs (58% and 63%, respectively). The densities of the toxigenic isolates, detected using the aflR gene, were 45% vs. 22% in the untreated and treated fields, respectively. After displacement via the AF- deployment, a variability from 7% to 32% was noticed in the toxigenic isolates. The current findings support the long-term durability of the biocontrol application benefits without deleterious effects on each fungal population. Nevertheless, based on the current results, as well as on previous studies, the yearly applications of AF-X1 to Italian commercial maize fields should continue.
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Abou Dib A, Assaf JC, El Khoury A, El Khatib S, Koubaa M, Louka N. Single, Subsequent, or Simultaneous Treatments to Mitigate Mycotoxins in Solid Foods and Feeds: A Critical Review. Foods 2022; 11:3304. [PMCID: PMC9601460 DOI: 10.3390/foods11203304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Mycotoxins in solid foods and feeds jeopardize the public health of humans and animals and cause food security issues. The inefficacy of most preventive measures to control the production of fungi in foods and feeds during the pre-harvest and post-harvest stages incited interest in the mitigation of these mycotoxins that can be conducted by the application of various chemical, physical, and/or biological treatments. These treatments are implemented separately or through a combination of two or more treatments simultaneously or subsequently. The reduction rates of the methods differ greatly, as do their effect on the organoleptic attributes, nutritional quality, and the environment. This critical review aims at summarizing the latest studies related to the mitigation of mycotoxins in solid foods and feeds. It discusses and evaluates the single and combined mycotoxin reduction treatments, compares their efficiency, elaborates on their advantages and disadvantages, and sheds light on the treated foods or feeds, as well as on their environmental impact.
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Affiliation(s)
- Alaa Abou Dib
- Centre d’Analyses et de Recherche (CAR), Unité de Recherche Technologies et Valorisation Agro-Alimentaire (UR-TVA), Faculté des Sciences, Campus des Sciences et Technologies, Université Saint-Joseph de Beyrouth, Mar Roukos, Matn 1104-2020, Lebanon
- Department of Food Sciences and Technology, Facuty of Arts and Sciences, Bekaa Campus, Lebanese International University, Khiyara, Bekaa 1108, Lebanon
| | - Jean Claude Assaf
- Centre d’Analyses et de Recherche (CAR), Unité de Recherche Technologies et Valorisation Agro-Alimentaire (UR-TVA), Faculté des Sciences, Campus des Sciences et Technologies, Université Saint-Joseph de Beyrouth, Mar Roukos, Matn 1104-2020, Lebanon
| | - André El Khoury
- Centre d’Analyses et de Recherche (CAR), Unité de Recherche Technologies et Valorisation Agro-Alimentaire (UR-TVA), Faculté des Sciences, Campus des Sciences et Technologies, Université Saint-Joseph de Beyrouth, Mar Roukos, Matn 1104-2020, Lebanon
- Correspondence: ; Tel.: +9611421389
| | - Sami El Khatib
- Department of Food Sciences and Technology, Facuty of Arts and Sciences, Bekaa Campus, Lebanese International University, Khiyara, Bekaa 1108, Lebanon
| | - Mohamed Koubaa
- TIMR (Integrated Transformations of Renewable Matter), Centre de Recherche Royallieu, Université de Technologie de Compiègne, ESCOM—CS 60319, CEDEX, 60203 Compiègne, France
| | - Nicolas Louka
- Centre d’Analyses et de Recherche (CAR), Unité de Recherche Technologies et Valorisation Agro-Alimentaire (UR-TVA), Faculté des Sciences, Campus des Sciences et Technologies, Université Saint-Joseph de Beyrouth, Mar Roukos, Matn 1104-2020, Lebanon
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Ortega-Beltran A, Agbetiameh D, Atehnkeng J, Falade TDO, Bandyopadhyay R. Does Use of Atoxigenic Biocontrol Products to Mitigate Aflatoxin in Maize Increase Fumonisin Content in Grains? PLANT DISEASE 2021; 105:2196-2201. [PMID: 33210967 DOI: 10.1094/pdis-07-20-1447-re] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In the tropics and subtropics, maize (Zea mays) and other crops are frequently contaminated with aflatoxins by Aspergillus flavus. Treatment of crops with atoxigenic isolates of A. flavus formulated into biocontrol products can significantly reduce aflatoxin contamination. Treated crops contain up to 100% fewer aflatoxins compared with untreated crops. However, there is the notion that protecting crops from aflatoxin contamination may result in increased accumulation of other toxins, particularly fumonisins produced by a few Fusarium species. The objective of this study was to determine if treatment of maize with aflatoxin biocontrol products increased fumonisin concentration and fumonisin-producing fungi in grains. Over 200 maize samples from fields treated with atoxigenic biocontrol products in Nigeria and Ghana were examined for fumonisin content and contrasted with maize from untreated fields. Apart from low aflatoxin levels, most treated maize also harbored fumonisin levels considered safe by the European Union (<1 part per million; ppm). Most untreated maize also harbored equally low fumonisin levels but contained higher aflatoxin levels. In addition, during one year, we detected considerably lower Fusarium spp. densities in treated maize than in untreated maize. Our results do not support the hypothesis that treating crops with atoxigenic isolates of A. flavus used in biocontrol formulations results in higher grain fumonisin levels.[Formula: see text] Copyright © 2021 The Author(s). This is an open access article distributed under the CC BY 4.0 International license.
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Affiliation(s)
| | - Daniel Agbetiameh
- International Institute of Tropical Agriculture, Ibadan 200001, Nigeria
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
- Department of Agro Enterprise Development, Faculty of Applied Science and Technology, Ho Technical University, Ho, Ghana
| | - Joseph Atehnkeng
- International Institute of Tropical Agriculture, Bukavu, D. R. Congo
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Moore GG. Practical considerations will ensure the continued success of pre-harvest biocontrol using non-aflatoxigenic Aspergillus flavus strains. Crit Rev Food Sci Nutr 2021; 62:4208-4225. [PMID: 33506687 DOI: 10.1080/10408398.2021.1873731] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
There is an important reason for the accelerated use of non-aflatoxigenic Aspergillus flavus to mitigate pre-harvest aflatoxin contamination… it effectively addresses the imperative need for safer food and feed. Now that we have decades of proof of the effectiveness of A. flavus as biocontrol, it is time to improve several aspects of this strategy. If we are to continue relying heavily on this form of aflatoxin mitigation, there are considerations we must acknowledge, and actions we must take, to ensure that we are best wielding this strategy to our advantage. These include its: (1) potential to produce other mycotoxins, (2) persistence in the field in light of several ecological factors, (3) its reproductive and genetic stability, (4) the mechanism(s) employed that allow it to elicit control over aflatoxigenic strains and species of agricultural importance and (5) supplemental alternatives that increase its effectiveness. There is a need to be consistent, practical and thoughtful when it comes to implementing this method of mycotoxin mitigation since these fungi are living organisms that have been adapting, evolving and surviving on this planet for tens-of-millions of years. This document will serve as a critical review of the literature regarding pre-harvest A. flavus biocontrol and will discuss opportunities for improvements.
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Affiliation(s)
- Geromy G Moore
- United States Department of Agriculture, Agricultural Research Service, New Orleans, USA
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