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Fakhri Y, Mahdavi V, Ranaei V, Pilevar Z, Sarafraz M, Mahmudiono T, Khaneghah AM. Ochratoxin A in coffee and coffee-based products: a global systematic review, meta-analysis, and probabilistic risk assessment. REVIEWS ON ENVIRONMENTAL HEALTH 2024; 39:211-220. [PMID: 36372738 DOI: 10.1515/reveh-2022-0115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
Contamination of food with mycotoxins can pose harmful effects on the health of consumers in the long term. Coffee contamination with mycotoxins has become a global concern. This study attempted to meta-analyze the concentration and prevalence of ochratoxin A (OTA) in coffee products and estimate consumers' health risks. The search was conducted among international databases, including Scopus, PubMed, Embase, and Web of Science, for 1 January 2010 to 1 May 2022. The concentration and prevalence of OTA in coffee products were meta-analyzed according to country subgroups. Health risk assessment was conducted based on Margin of Exposures (MOEs) using the Monte Carlo simulation (MCS) technique. The three countries that had the highest Pooled concentration of OTA in coffee were observed in Chile (100.00%), Kuwait (100.00%), and France (100.00%). The overall prevalence of OTA in coffee products was 58.01%, 95% CI (48.37-67.39). The three countries that had the highest concentration of OTA were Philippines (39.55 μg/kg) > Turkey (39.32 μg/kg) > and Panama (21.33 μg/kg). The mean of MOEs in the adult consumers in Panama (9,526) and the Philippines (8,873) was lower than 10,000, while the mean of MOEs in other countries was higher than 10,000. Therefore, monitoring and control plans should be carried out in different countries.
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Affiliation(s)
- Yadolah Fakhri
- Food Health Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Vahideh Mahdavi
- Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
| | - Vahid Ranaei
- School of Health, Arak University of Medical Sciences, Arak, Iran
| | - Zahra Pilevar
- School of Health, Arak University of Medical Sciences, Arak, Iran
| | - Mansour Sarafraz
- School of Public Health, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Trias Mahmudiono
- Department of Nutrition, Faculty of Public Health, Universitas Airlangga, Surabaya, Indonesia
| | - Amin Mousavi Khaneghah
- Department of Fruit and Vegetable Product Technology, Prof. Wacław Dąbrowski Institute of Agricultural and Food Biotechnology - State Research Institute, Warsaw, Poland
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Maruška A, Mickienė R, Kaškonienė V, Grigiškis S, Stankevičius M, Drevinskas T, Kornyšova O, Donati E, Tiso N, Mikašauskaitė-Tiso J, Zacchini M, Levišauskas D, Ragažinskienė O, Bimbiraitė-Survilienė K, Kanopka A, Dūda G. Searching for Chemical Agents Suppressing Substrate Microbiota in White-Rot Fungi Large-Scale Cultivation. Microorganisms 2024; 12:1242. [PMID: 38930624 PMCID: PMC11206069 DOI: 10.3390/microorganisms12061242] [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: 04/08/2024] [Revised: 06/07/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024] Open
Abstract
Edible fungi are a valuable resource in the search for sustainable solutions to environmental pollution. Their ability to degrade organic pollutants, extract heavy metals, and restore ecological balance has a huge potential for bioremediation. They are also sustainable food resources. Edible fungi (basidiomycetes or fungi from other divisions) represent an underutilized resource in the field of bioremediation. By maximizing their unique capabilities, it is possible to develop innovative approaches for addressing environmental contamination. The aim of the present study was to find selective chemical agents suppressing the growth of microfungi and bacteria, but not suppressing white-rot fungi, in order to perform large-scale cultivation of white-rot fungi in natural unsterile substrates and use it for different purposes. One application could be the preparation of a matrix composed of wooden sleeper (contaminated with PAHs) and soil for further hazardous waste bioremediation using white-rot fungi. In vitro microbiological methods were applied, such as, firstly, compatibility tests between bacteria and white-rot fungi or microfungi, allowing us to evaluate the interaction between different organisms, and secondly, the addition of chemicals on the surface of a Petri dish with a test strain of microorganisms of white-rot fungi, allowing us to determine the impact of chemicals on the growth of organisms. This study shows that white-rot fungi are not compatible to grow with several rhizobacteria or bacteria isolated from soil and bioremediated waste. Therefore, the impact of several inorganic materials, such as lime (hydrated form), charcoal, dolomite powder, ash, gypsum, phosphogypsum, hydrogen peroxide, potassium permanganate, and sodium hydroxide, was evaluated on the growth of microfungi (sixteen strains), white-rot fungi (three strains), and bacteria (nine strains) in vitro. Charcoal, dolomite powder, gypsum, and phosphogypsum did not suppress the growth either of microfungi or of bacteria in the tested substrate, and even acted as promoters of their growth. The effects of the other agents tested were strain dependent. Potassium permanganate could be used for bacteria and Candida spp. growth suppression, but not for other microfungi. Lime showed promising results by suppressing the growth of microfungi and bacteria, but it also suppressed the growth of white-rot fungi. Hydrogen peroxide showed strong suppression of microfungi, and even had a bactericidal effect on some bacteria, but did not have an impact on white-rot fungi. The study highlights the practical utility of using hydrogen peroxide up to 3% as an effective biota-suppressing chemical agent prior to inoculating white-rot fungi in the large-scale bioremediation of polluted substrates, or in the large-scale cultivation for mushroom production as a foodstuff.
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Affiliation(s)
- Audrius Maruška
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Rūta Mickienė
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Vilma Kaškonienė
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | | | - Mantas Stankevičius
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Tomas Drevinskas
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Olga Kornyšova
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Enrica Donati
- National Research Council, Area Della Ricerca di Roma 1, Via Salaria Km 29,300, Monterotondo, 00015 Rome, Italy; (E.D.); (M.Z.)
| | - Nicola Tiso
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Jurgita Mikašauskaitė-Tiso
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Massimo Zacchini
- National Research Council, Area Della Ricerca di Roma 1, Via Salaria Km 29,300, Monterotondo, 00015 Rome, Italy; (E.D.); (M.Z.)
| | - Donatas Levišauskas
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
- Process Control Department, Kaunas University of Technology, Studentų St. 50, LT-51368 Kaunas, Lithuania
| | - Ona Ragažinskienė
- Botanical Garden of Vytautas Magnus University, Ž. E. Žilibero 6, LT-46324 Kaunas, Lithuania;
| | - Kristina Bimbiraitė-Survilienė
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Arvydas Kanopka
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Gediminas Dūda
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
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Silveira RD, Veras FF, Hernandes KC, Bach E, Passaglia LMP, Zini CA, Brandelli A, Welke JE. Genomic analysis reveals genes that encode the synthesis of volatile compounds by a Bacillus velezensis-based biofungicide used in the treatment of grapes to control Aspergillus carbonarius. Int J Food Microbiol 2024; 415:110644. [PMID: 38417280 DOI: 10.1016/j.ijfoodmicro.2024.110644] [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: 07/17/2023] [Revised: 01/04/2024] [Accepted: 02/24/2024] [Indexed: 03/01/2024]
Abstract
Fungal control strategies based on the use of Bacillus have emerged in agriculture as eco-friendly alternatives to replace/reduce the use of synthetic pesticides. Bacillus sp. P1 was reported as a new promising strain for control of Aspergillus carbonarius, a known producer of ochratoxin A, categorized as possible human carcinogen with high nephrotoxic potential. Grape quality can be influenced by vineyard management practices, including the use of fungal control agents. The aim of this study was to evaluate, for the first time, the quality parameters of Chardonnay grapes exposed to an antifungal Bacillus-based strategy for control of A. carbonarius, supporting findings by genomic investigations. Furthermore, genomic tools were used to confirm that the strain P1 belongs to the non-pathogenic species Bacillus velezensis and also to certify its biosafety. The genome of B. velezensis P1 harbors genes that are putatively involved in the production of volatiles and hydrolytic enzymes, which are responsible for releasing the free form of aroma compounds. In addition to promote biocontrol of phytopathogenic fungi and ochratoxins, the treatment with B. velezensis P1 did not change the texture (hardness and firmness), color and pH of the grapes. Heat map and hierarchical clustering analysis (HCA) of volatiles evaluated by GC/MS revealed that Bacillus-treated grapes showed higher levels of compounds with a pleasant odor descriptions such as 3-hydroxy-2-butanone, 2,3-butanediol, 3-methyl-1-butanol, 3,4-dihydro-β-ionone, β-ionone, dihydroactinidiolide, linalool oxide, and β-terpineol. The results of this study indicate that B. velezensis P1 presents desirable properties to be used as a biocontrol agent.
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Affiliation(s)
- Rafaela Diogo Silveira
- Instituto de Ciência e Tecnologia de Alimentos (ICTA), Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, Prédio 43212, CEP 91501- 970 Porto Alegre, Brazil
| | - Flávio Fonseca Veras
- Instituto de Ciência e Tecnologia de Alimentos (ICTA), Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, Prédio 43212, CEP 91501- 970 Porto Alegre, Brazil
| | - Karolina Cardoso Hernandes
- Instituto de Ciência e Tecnologia de Alimentos (ICTA), Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, Prédio 43212, CEP 91501- 970 Porto Alegre, Brazil
| | - Evelise Bach
- Instituto de Biociências, UFRGS, Av. Bento Gonçalves, 9500, Prédio 43411, CEP 91501-970 Porto Alegre, Brazil
| | | | - Claudia Alcaraz Zini
- Instituto de Química, UFRGS, Av. Bento Gonçalves, 9500, Prédio 43111, CEP 91501-970 Porto Alegre, Brazil
| | - Adriano Brandelli
- Instituto de Ciência e Tecnologia de Alimentos (ICTA), Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, Prédio 43212, CEP 91501- 970 Porto Alegre, Brazil
| | - Juliane Elisa Welke
- Instituto de Ciência e Tecnologia de Alimentos (ICTA), Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, Prédio 43212, CEP 91501- 970 Porto Alegre, Brazil.
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Natarajan S, Balachandar D, Paranidharan V. Inhibitory effects of epiphytic Kluyveromyces marxianus from Indian senna (Cassia angustifolia Vahl.) on growth and aflatoxin production of Aspergillus flavus. Int J Food Microbiol 2023; 406:110368. [PMID: 37639733 DOI: 10.1016/j.ijfoodmicro.2023.110368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 08/12/2023] [Accepted: 08/17/2023] [Indexed: 08/31/2023]
Abstract
Aspergillus flavus infection and subsequent aflatoxin contamination are considered the major constraints in senna (Cassia angustifolia Vahl.) export. Using native epiphytic yeast to control phytopathogens is a successful strategy for managing plant diseases. In the present investigation, we exploited the antagonistic potential of epiphytic yeast isolates obtained from senna against A. flavus growth and aflatoxin B1 (AFB1) production. Four Kluyveromyces marxianus strains (YSL3, YSL16, YSP12, and YSF9) exhibited vigorous antagonistic activity with a maximum inhibition of 64 %. In vivo evaluation of senna pods showed that K. marxianus strains effectively reduced A. flavus colonization with a population range of 5.87 to 7.08 log10 CFU/g. In contrast, the untreated senna pods were found to have severe fungal colonization with a population of 7.84 log10 CFU/g. In addition, HPLC analysis showed that aflatoxin B1 in senna pods was drastically reduced upon yeast treatment up to 14 DAI. Furthermore, we demonstrated the antifungal action mechanisms of K. marxianus, such as surface colonizing ability on pods, production of antifungal volatiles (VOCs), siderophores, extracellular lytic enzymes, and cell wall binding ability to AFB1. All four strains of K. marxianus showed rapid colonization on the senna pod, and YSP12 reached the maximum population of 7.18 log10 CFU/pod at 9 days after inoculation (DAI). The exposure of A. flavus to K. marxianus VOCs significantly reduced the growth by up to 99 and 93.2 % at 7 and 14 DAI, respectively. Scanning electron microscopic images demonstrated severe mycelial damage and hyphal deformities of A. flavus. In addition, yeast VOCs can reduce aflatoxin biosynthesis in A. flavus by up to 99 and 93.2 % at 7 and 14 DAI, respectively. Gas chromatography-mass spectrometry analysis confirmed the presence of antimicrobial compounds such as dimethyl trisulfide, ethyl acetate, ethanol, 3-methyl butanal, 2-methyl-1-butanol, and 3-methyl-1-butanol in the volatiles. K. marxianus strains produced siderophores and hydrolytic enzymes such as chitinase and β-1,3-glucanase. A higher AFB1 binding ability was observed in the heat-killed cells (47.5 to 70.65 %) than in the viable cells (43.16 to 60.98 %) of K. marxianus. The current study demonstrated that epiphytic K. marxianus isolated from senna could be a successful biocontrol source to reduce aflatoxin contamination in senna pods.
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Affiliation(s)
- Subramani Natarajan
- Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, India; School of Biology and Environment Science, Earth Institute, University College Dublin, Belfield, Dublin 4, Ireland
| | - Dananjeyan Balachandar
- Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, India
| | - Vaikuntavasan Paranidharan
- Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, India.
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Gu M, Fu J, Yan H, Yue X, Zhao S, Zhang Q, Li P. Approach for quick exploration of highly effective broad-spectrum biocontrol strains based on PO8 protein inhibition. NPJ Sci Food 2023; 7:45. [PMID: 37658048 PMCID: PMC10474023 DOI: 10.1038/s41538-023-00210-5] [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: 11/27/2022] [Accepted: 07/03/2023] [Indexed: 09/03/2023] Open
Abstract
Aflatoxin is a group of strongly toxic and carcinogenic mycotoxins produced by Aspergillus flavus and other Aspergillus species, which caused food contamination and food loss problems widely across the world especially in developing countries, thus threatening human health and sustainable development. So, it is important to develop new, green, and broad-spectrum biocontrol technology for the prevention of aflatoxin contamination sources. Previously, we found that the PO8 protein from aflatoxigenic A. flavus could be used as a biomarker to predict aflatoxin production in peanuts (so the PO8 is named as an early warning molecule), which infers that the PO8 is relative to aflatoxin production. Therefore, in the study, based on inhibiting the PO8, a new and quick strategy for screening aflatoxin biocontrol strains for developing control agents was presented. With the PO8 inhibition method, four biocontrol strains (2 strains were isolated from peanut kernels with sterilized surface and another 2 strains from peanut rhizosphere soil) were selected and combined to increase prevention wide-spectrum. As a result, the combination showed over 90% inhibition to all tested aflatoxigenic A. flavus isolated from three different peanut production areas (north, middle, and south areas of China), and better than any single strain. The field experiments located in five provinces of China showed that the practice prevention effects (inhibition of aflatoxigenic fungi on the surface of the peanuts) were from 50% to over 80%. The results indicated that the strategy of inhibiting the early warning molecule PO8 can be used to develop aflatoxin control agents well.
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Affiliation(s)
- Mei Gu
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430061, China
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Wuhan, 430061, China
| | - Jiayun Fu
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430061, China
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Wuhan, 430061, China
| | - Honglin Yan
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430061, China
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Wuhan, 430061, China
| | - Xiaofeng Yue
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430061, China
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Wuhan, 430061, China
- Hubei Hongshan Laboratory, Wuhan, 430061, China
| | - Shancang Zhao
- Institute of Quality Standards and Testing Technology for Agro-products, Shandong Academy of Agricultural Sciences, Jinan, 250100, P. R. China.
| | - Qi Zhang
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430061, China.
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Wuhan, 430061, China.
- Hubei Hongshan Laboratory, Wuhan, 430061, China.
- Institute of Food Safety, Hubei University, Wuhan, 430061, China.
- Ministry of Agriculture and Rural Affairs and Key Laboratory of Detection for Mycotoxins, Wuhan, 430061, China.
| | - Peiwu Li
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430061, China.
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Wuhan, 430061, China.
- Hubei Hongshan Laboratory, Wuhan, 430061, China.
- Ministry of Agriculture and Rural Affairs and Key Laboratory of Detection for Mycotoxins, Wuhan, 430061, China.
- Xianghu Laboratory, Hangzhou, 311231, P. R. China.
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Zhang J, Tang X, Cai Y, Zhou WW. Mycotoxin Contamination Status of Cereals in China and Potential Microbial Decontamination Methods. Metabolites 2023; 13:metabo13040551. [PMID: 37110209 PMCID: PMC10143121 DOI: 10.3390/metabo13040551] [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: 02/09/2023] [Revised: 04/05/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
The presence of mycotoxins in cereals can pose a significant health risk to animals and humans. China is one of the countries that is facing cereal contamination by mycotoxins. Treating mycotoxin-contaminated cereals with established physical and chemical methods can lead to negative effects, such as the loss of nutrients, chemical residues, and high energy consumption. Therefore, microbial detoxification techniques are being considered for reducing and treating mycotoxins in cereals. This paper reviews the contamination of aflatoxins, zearalenone, deoxynivalenol, fumonisins, and ochratoxin A in major cereals (rice, wheat, and maize). Our discussion is based on 8700 samples from 30 provincial areas in China between 2005 and 2021. Previous research suggests that the temperature and humidity in the highly contaminated Chinese cereal-growing regions match the growth conditions of potential antagonists. Therefore, this review takes biological detoxification as the starting point and summarizes the methods of microbial detoxification, microbial active substance detoxification, and other microbial inhibition methods for treating contaminated cereals. Furthermore, their respective mechanisms are systematically analyzed, and a series of strategies for combining the above methods with the treatment of contaminated cereals in China are proposed. It is hoped that this review will provide a reference for subsequent solutions to cereal contamination problems and for the development of safer and more efficient methods of biological detoxification.
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Affiliation(s)
- Jing Zhang
- College of Biosystems Engineering and Food Science, Ningbo Research Institute, Zhejiang University, Hangzhou 310058, China
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Xi Tang
- College of Biosystems Engineering and Food Science, Ningbo Research Institute, Zhejiang University, Hangzhou 310058, China
| | - Yifan Cai
- College of Biosystems Engineering and Food Science, Ningbo Research Institute, Zhejiang University, Hangzhou 310058, China
| | - Wen-Wen Zhou
- College of Biosystems Engineering and Food Science, Ningbo Research Institute, Zhejiang University, Hangzhou 310058, China
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Grahovac J, Pajčin I, Vlajkov V. Bacillus VOCs in the Context of Biological Control. Antibiotics (Basel) 2023; 12:antibiotics12030581. [PMID: 36978448 PMCID: PMC10044676 DOI: 10.3390/antibiotics12030581] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/09/2023] [Accepted: 03/10/2023] [Indexed: 03/17/2023] Open
Abstract
A contemporary agricultural production system relying on heavy usage of agrochemicals represents a questionable outlook for sustainable food supply in the future. The visible negative environmental impacts and unforeseen consequences to human and animal health have been requiring a shift towards the novel eco-friendly alternatives for chemical pesticides for a while now. Microbial-based biocontrol agents have shown a promising potential for plant disease management. The bacteria of the genus Bacillus have been among the most exploited microbial active components due to several highly efficient mechanisms of action against plant pathogens, as well as a palette of additional plant-beneficial mechanisms, together with their suitable properties for microbial biopesticide formulations. Among other bioactive metabolites, volatile organic compounds (VOCs) have been investigated for their biocontrol applications, exhibiting the main advantage of long-distance effect without the necessity for direct contact with plants or pathogens. The aim of this study is to give an overview of the state-of-the-art in the field of Bacillus-based VOCs, especially in terms of their antibacterial, antifungal, and nematicidal action as the main segments determining their potential for biocontrol applications in sustainable agriculture.
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Bora P, Devi NN. Exploration of the chemical constituents and its antioxidant, antibacterial activities of endophytic fungi isolated from the medicinal plant Dillenia indica. Arch Microbiol 2023; 205:67. [PMID: 36653666 DOI: 10.1007/s00203-023-03407-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 01/06/2023] [Indexed: 01/20/2023]
Abstract
Assam, India being the pool for ethnomedicinal plants harbors diverse endophytic fungi constituting major bioactive metabolites. The present study was designed to screen the antioxidant, antibacterial activities along with the chemical constituents of the endophytic fungi isolated from the fruits of Dillenia indica (commonly known as Otenga in Assam). Screening of such metabolic compounds and their antioxidant, antibacterial activities can have tremendous potential in suppressing certain diseases. Agar well diffusion method has been used to carry out the antibacterial assay against three pathogenic bacteria two gram positive [Bacillus subtilis (MTCC No. 441); Staphylococcus aureus (MTCC No. 740)] and one gram negative [Escherichia coli (MTCC No. 739)]. Aspergillus fumigatus of ethyl acetate extract showed a prominent activity against Staphylococcus aureus followed by Aspergillus flavus and Aspergillus niger. Antioxidants have the potential to neutralize and inhibit the action of free radicals. The highest scavenging activity was exhibited by ethyl acetate extract of Aspergillus fumigatus in DPPH assay. Furthermore, the phytochemical screening revealed the presence of flavonoids, alkaloids, terpenoids and saponins. Result showed that ethyl acetate extract of Aspergillus fumigatus showed the highest phenolic content (236.81 ± 0.2 mg.g-1) and least was shown by Aspergillus flavus (92.12 ± 1.4 mg.g-1). Total flavonoids content for Aspergillus fumigatus (39.08 ± 0.2 mg.g-1) was found to be highest compared to other isolates. Molecular identification of the endophytic fungus showing highest activity was done based on 18S rRNA. The sequenced was submitted in Genbank with accession number MH540721 showing high similarities with Aspergillus fumigatus strain 3,162,954. A. fumigatus strain is subjected to GC/MS analysis that revealed the chemical constituents 2-isopropyl-5-methyl-1-heptanol, dodecane, 1-fluoro-pentanoic acid, 2-ethylhexyl ester, 1-octanol, 2-butyl-1-dodecanol. Thus, the present work reveals that endophytic fungi colonizing in ethnomedicinal plant Dillenia indica could be a promising source for antioxidant and antibacterial activity. Further work is needed to add value in various therapeutic and pharmaceutical fields.
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Affiliation(s)
- Pinky Bora
- Cotton University, Guwahati, India, 781001
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9
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Effects of Different Concentrations of Lactobacillus plantarum and Bacillus licheniformis on Silage Quality, In Vitro Fermentation and Microbial Community of Hybrid Pennisetum. Animals (Basel) 2022; 12:ani12141752. [PMID: 35883299 PMCID: PMC9311531 DOI: 10.3390/ani12141752] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/02/2022] [Accepted: 07/05/2022] [Indexed: 12/19/2022] Open
Abstract
The purpose of the experiment was to study the effects of different concentrations of Lactobacillus plantarum (LP) and Bacillus licheniformis (BL) on the quality of hybrid Pennisetum (HP) silage. The experiment consisted of five treatment groups. The control group did not use additives, and the experimental groups were added with LP or BL of 1 × 105 cfu/g fresh weight (FW) and 1 × 107 cfu/g FW, respectively. The results showed that LP and BL could increase the in vitro fermentation gas production and reduce the ammonia nitrogen (AN) content in HP silage. Water-soluble carbohydrates (WSC), lactic acid (LA) content, and gas production in the LP group were positively correlated with LP addition, and acetic acid (AA) was negatively correlated with addition. The content of WSC and LA in the LP7 group was significantly higher than that in the control group (p < 0.05), and AA was lower than that in the control group (p > 0.05). Dry matter (DM), crude protein (CP), and gas production were negatively correlated with the addition of BL, while acid detergent fiber (ADF) content was positively correlated with the addition of BL. Furthermore, in the above indicators, the BL5 group reached a significant level with the control group (p < 0.05). The results of 16sRNA showed that the use of LP and BL could increase the relative abundance of Lactobacillus and decrease the relative abundance of Weissella in HP silage compared with the control group. In conclusion, LP and BL can significantly improve the quality of HP silage. The LP7 group and the BL5 group have the best silage effect. From the perspective of gas production in in vitro fermentation, the LP7 group had stronger fermentability and higher nutritional value.
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Alkuwari A, Hassan ZU, Zeidan R, Al-Thani R, Jaoua S. Occurrence of Mycotoxins and Toxigenic Fungi in Cereals and Application of Yeast Volatiles for Their Biological Control. Toxins (Basel) 2022; 14:toxins14060404. [PMID: 35737064 PMCID: PMC9228409 DOI: 10.3390/toxins14060404] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 05/29/2022] [Accepted: 06/07/2022] [Indexed: 02/06/2023] Open
Abstract
Fungal infections in cereals lead to huge economic losses in the food and agriculture industries. This study was designed to investigate the occurrence of toxigenic fungi and their mycotoxins in marketed cereals and explore the effect of the antagonistic yeast Cyberlindnera jadinii volatiles against key toxigenic fungal strains. Aspergillus spp. were the most frequent contaminating fungi in the cereals, with an isolation frequency (Fr) of 100% in maize, followed by wheat (88.23%), rice (78.57%) and oats (14.28%). Morphological and molecular identification confirmed the presence of key toxigenic fungal strains in cereal samples, including A. carbonarius, A. flavus, A. niger, A. ochraceus and A. parasiticus. Aflatoxins (AFs) were detected in all types of tested cereal samples, with a significantly higher level in maize compared to wheat, rice, oats and breakfast cereals. Ochratoxin A (OTA) was only detected in wheat, rice and maize samples. Levels of mycotoxins in cereals were within EU permissible limits. The volatiles of Cyberlindnera jadinii significantly inhibited the growth of A. parasiticus, A. niger and P. verrucosum. The findings of this study confirm the presence of toxigenic fungi and mycotoxins in cereals within the EU permissible limits and the significant biocontrol ability of Cyberlindnera jadinii against these toxigenic fungi.
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11
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Galván AI, Hernández A, Córdoba MDG, Martín A, Serradilla MJ, López-Corrales M, Rodríguez A. Control of toxigenic Aspergillus spp. in dried figs by volatile organic compounds (VOCs) from antagonistic yeasts. Int J Food Microbiol 2022; 376:109772. [PMID: 35667262 DOI: 10.1016/j.ijfoodmicro.2022.109772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/14/2022] [Accepted: 05/30/2022] [Indexed: 11/16/2022]
Abstract
Aspergillus flavus and Aspergillus niger are fungi which can contaminate dried figs before and after harvest and consequently produce aflatoxins (AFs) and ochratoxin A (OTA). Many approaches have been applied to minimise the growth of these filamentous fungi, mainly involving the use of synthetic fungicides which are limited due to their negative impact on human health and the environment. In this context, biocontrol is a recent approach that needs to be explored. This study evaluated the potential of three volatile organic compounds (VOCs), octanoic acid (OA), 2-phenylethyl acetate (2PEA) and furfuryl acetate (FA), produced by Hanseniaspora uvarum and Hanseniaspora opuntiae yeasts on the growth, germination, gene expression and production of AFs and OTA by A. flavus M144 and A. niger M185 on dried fig-based agar and the incidence rates in dried figs. Two of the three VOCs evaluated (2PEA and FA) effectively controlled A. flavus M144 and A. niger M185 by using at least amounts of 50 μL (715 μL/L in the headspace) for FA and 100 μL (1430 μL/L in the headspace) for 2PEA in dried figs. One of the mode of actions of both compounds consists in early repressing the expression of genes involved in the biosynthesis of AFs (aflR) and OTA (pks) of A. flavus and A. niger, respectively. The results of this study support the application of 2PEA and FA at the early post-harvest stages of dried figs to control mycotoxin accumulation.
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Affiliation(s)
- Ana Isabel Galván
- Área de Fruticultura, Centro de Investigaciones Finca La Orden-Valdesequera (CICYTEX), Autovía Madrid-Lisboa, s/n, 06187 Guadajira, Spain
| | - Alejandro Hernández
- Nutrición y Bromatología, Escuela de Ingenierías Agrarias, Instituto Universitario de Recursos Agrarios (INURA), Universidad de Extremadura, Ctra. de Cáceres s/n, 06007 Badajoz, Spain.
| | - María de Guía Córdoba
- Nutrición y Bromatología, Escuela de Ingenierías Agrarias, Instituto Universitario de Recursos Agrarios (INURA), Universidad de Extremadura, Ctra. de Cáceres s/n, 06007 Badajoz, Spain
| | - Alberto Martín
- Nutrición y Bromatología, Escuela de Ingenierías Agrarias, Instituto Universitario de Recursos Agrarios (INURA), Universidad de Extremadura, Ctra. de Cáceres s/n, 06007 Badajoz, Spain
| | - Manuel Joaquín Serradilla
- Área de Postcosecha, Instituto Tecnológico Agroalimentario de Extremadura (INTAEX), Centro de Investigaciones Científicas y Tecnológicas de Extremadura (CICYTEX), Avenida Adolfo Suárez s/n, 06007 Badajoz, Spain
| | - Margarita López-Corrales
- Área de Fruticultura, Centro de Investigaciones Finca La Orden-Valdesequera (CICYTEX), Autovía Madrid-Lisboa, s/n, 06187 Guadajira, Spain
| | - Alicia Rodríguez
- Nutrición y Bromatología, Escuela de Ingenierías Agrarias, Instituto Universitario de Recursos Agrarios (INURA), Universidad de Extremadura, Ctra. de Cáceres s/n, 06007 Badajoz, Spain
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12
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Bo T, Kong C, Zou S, Mo M, Liu Y. Bacillus nematocida B16 Enhanced the Rhizosphere Colonization of Pochonia chlamydosporia ZK7 and Controlled the Efficacy of the Root-Knot Nematode Meloidogyne incognita. Microorganisms 2022; 10:microorganisms10020218. [PMID: 35208675 PMCID: PMC8879550 DOI: 10.3390/microorganisms10020218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/15/2022] [Accepted: 01/18/2022] [Indexed: 02/04/2023] Open
Abstract
Pochonia chlamydosporia is widely applied in many countries as a biocontrol fungus against parasitic nematodes in plants. In a field experiment, the combined use of Bacillus nematocida B16 increased the biocontrol efficiency of P. chlamydosporia ZK7 against Meloidogyne incognita. Further study indicated that the colonization of P. chlamydosporia ZK7 in the rhizosphere soil and the roots of tomatoes was significantly higher in the combined use group than in the control group. Gas chromatography was conducted to determine the effects of signaling substances. Five compounds, hexanal, (E)-2-hexenal, furfural, benzaldehyde, and 2-nonanone, were found to be highly altered in the volatile compounds produced in the soil under the combined application. The changes in benzaldehyde and 2-nonanone were the main factors that resulted in an increase in the colonization of fungi P. chlamydosporia ZK7 in the tomato roots. Furfural was the main volatile substance that affected the colonization of fungi P. chlamydosporia ZK7 in the soil. The combined use of B. nematocida B16 and P. chlamydosporia ZK7 altered the volatile ranges and resulted in increased colonization of biocontrol fungi and improved biocontrol efficiency against nematodes. This combined model could be used to promote the ability of biocontrol fungi to control root-knot nematodes.
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Affiliation(s)
- Tingting Bo
- State Key Laboratory for Conservation and Utilization of Bio-Resources, Yunnan University, Kunming 650032, China; (T.B.); (C.K.); (S.Z.); (M.M.)
- Key Laboratory for Southwest Microbial Diversity of the Ministry of Education, Yunnan University, Kunming 650032, China
| | - Chuixu Kong
- State Key Laboratory for Conservation and Utilization of Bio-Resources, Yunnan University, Kunming 650032, China; (T.B.); (C.K.); (S.Z.); (M.M.)
- Key Laboratory for Southwest Microbial Diversity of the Ministry of Education, Yunnan University, Kunming 650032, China
| | - Shunxing Zou
- State Key Laboratory for Conservation and Utilization of Bio-Resources, Yunnan University, Kunming 650032, China; (T.B.); (C.K.); (S.Z.); (M.M.)
- Key Laboratory for Southwest Microbial Diversity of the Ministry of Education, Yunnan University, Kunming 650032, China
| | - Minghe Mo
- State Key Laboratory for Conservation and Utilization of Bio-Resources, Yunnan University, Kunming 650032, China; (T.B.); (C.K.); (S.Z.); (M.M.)
- Key Laboratory for Southwest Microbial Diversity of the Ministry of Education, Yunnan University, Kunming 650032, China
| | - Yajun Liu
- State Key Laboratory for Conservation and Utilization of Bio-Resources, Yunnan University, Kunming 650032, China; (T.B.); (C.K.); (S.Z.); (M.M.)
- Key Laboratory for Southwest Microbial Diversity of the Ministry of Education, Yunnan University, Kunming 650032, China
- Correspondence:
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13
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Al Attiya W, Hassan ZU, Al-Thani R, Jaoua S. Prevalence of toxigenic fungi and mycotoxins in Arabic coffee (Coffea arabica): Protective role of traditional coffee roasting, brewing and bacterial volatiles. PLoS One 2021; 16:e0259302. [PMID: 34714880 PMCID: PMC8555823 DOI: 10.1371/journal.pone.0259302] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 10/15/2021] [Indexed: 11/27/2022] Open
Abstract
Fungal infection and synthesis of mycotoxins in coffee leads to significant economic losses. This study aimed to investigate the prevalence of toxigenic fungi, their metabolites, and the effect of traditional roasting and brewing on ochratoxin A (OTA) and aflatoxins (AFs) contents of naturally contaminated coffee samples. In addition, in vivo biocontrol assays were performed to explore the antagonistic activities of Bacillus simplex 350–3 (BS350-3) on the growth and mycotoxins synthesis of Aspergillus ochraceus and A. flavus. The relative density of A. niger, A. flavus, Penicillium verrucosum and A. carbonarius on green coffee bean was 60.82%, 7.21%, 3.09% and 1.03%, respectively. OTA contents were lowest in green coffee beans (2.15 μg/kg), followed by roasted (2.76 μg/kg) and soluble coffee (8.95 μg/kg). Likewise, AFs levels were highest in soluble coffee (90.58 μg/kg) followed by roasted (33.61 μg/kg) and green coffee (9.07 μg/kg). Roasting naturally contaminated coffee beans at three traditional methods; low, medium and high, followed by brewing resulted in reduction of 58.74% (3.50 μg/kg), 60.88% (3.72 μg/kg) and 64.70% (4.11 μg/kg) in OTA and 40.18% (34.65 μg/kg), 47.86% (41.17 μg/kg) and 62.38% (53.73 μg/kg) AFs contents, respectively. Significant inhibitions of AFs and OTA synthesis by A. flavus and A. carbonarius, respectively, on infected coffee beans were observed in presence of Bacillus simplex BS350-3 volatiles. Gas chromatography mass spectrochemistry (GC-MS/MS) analysis of head-space BS350-3 volatiles showed quinoline, benzenemethanamine and 1-Octadecene as bioactive antifungal molecules. These findings suggest that marketed coffee samples are generally contaminated with OTA and AFs, with a significant level of roasted and soluble coffee contaminated above EU permissible limits for OTA. Further, along with coffee roasting and brewing; microbial volatiles can be optimized to minimize the dietary exposure to mycotoxins.
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Affiliation(s)
- Wadha Al Attiya
- Environmental Science Program, Department of Biological and Environmental Sciences, College of Arts and Science, Qatar University, Doha, Qatar
| | - Zahoor Ul Hassan
- Environmental Science Program, Department of Biological and Environmental Sciences, College of Arts and Science, Qatar University, Doha, Qatar
| | - Roda Al-Thani
- Environmental Science Program, Department of Biological and Environmental Sciences, College of Arts and Science, Qatar University, Doha, Qatar
| | - Samir Jaoua
- Environmental Science Program, Department of Biological and Environmental Sciences, College of Arts and Science, Qatar University, Doha, Qatar
- * E-mail:
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14
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Bhatti SA, Khan MZ, Saleemi MK, Hassan ZU. Combating immunotoxicity of aflatoxin B1 by dietary carbon supplementation in broiler chickens. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:49089-49101. [PMID: 33932208 DOI: 10.1007/s11356-021-14048-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 04/19/2021] [Indexed: 06/12/2023]
Abstract
Aflatoxin B1 (AFB1) is a secondary metabolite of some Aspergillus species that contaminate the agricultural commodities intended for animal and human consumption. The present in vivo study aimed to evaluate activated charcoal (AC) for its ability to reduce AFB1-induced immune suppressive effects in broiler chickens. One-day-old broiler chicks were divided into 12 groups (n = 30) and raised until 42 days of age. One control group was offered basal broiler feed. Three AFB1 groups were kept on AFB1-contaminated basal broiler feed (0.1, 0.2, and 0.6 mg/kg AFB1, respectively), whereas two AC groups were offered AC-added basal broiler feed (2.5 and 5.0 g/kg AC, respectively). Six combination groups were maintained on a combination of different doses of AFB1 and AC. The immune protective efficacy of AC was assessed by anti-sheep RBC's antibodies, phagocytic activity of the reticuloendothelial system, phytohemagglutinin-P (PHA-P)-induced cutaneous basophil response, and histopathological and morphometric analysis of lymphoid organs. Dietary exposure to AFB1 alone resulted in dose-dependent suppression of immune responses and degenerative and necrotic changes in the bursa of Fabricius and thymus. The dietary addition of AC reduced the toxic effects of 0.1 and 0.2 mg/kg dietary AFB1 on immune responses and histological lesion on lymphoid organs; however, at higher dietary level of AFB1 (0.6 mg AFB1/kg), the dietary addition of AC was not effective to prevent the immunotoxic effects. The results of this study suggested that dietary inclusion of AC has the ability to prevent immunotoxic effects induced by AFB1 at lower dietary contaminations levels in broiler chickens.
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Affiliation(s)
- Sheraz Ahmed Bhatti
- Department of Pathobiology, Faculty of Veterinary Sciences, Bahauddin Zakariya University, Multan, Pakistan.
- Department of Pathology, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan.
| | - Muhammad Zargham Khan
- Department of Pathology, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Kashif Saleemi
- Department of Pathology, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan
| | - Zahoor Ul Hassan
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar
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15
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Hassan ZU, Al Thani R, Alsafran M, Migheli Q, Jaoua S. Selection of Bacillus spp. with decontamination potential on multiple Fusarium mycotoxins. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108119] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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16
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Luz C, Carbonell R, Quiles JM, Torrijos R, de Melo Nazareth T, Mañes J, Meca G. Antifungal activity of peracetic acid against toxigenic fungal contaminants of maize and barley at the postharvest stage. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111754] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Einloft TC, Bolzan de Oliveira P, Radünz LL, Dionello RG. Biocontrol capabilities of three Bacillus isolates towards aflatoxin B1 producer A. flavus in vitro and on maize grains. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.107978] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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18
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Delgado N, Olivera M, Cádiz F, Bravo G, Montenegro I, Madrid A, Fuentealba C, Pedreschi R, Salgado E, Besoain X. Volatile Organic Compounds (VOCs) Produced by Gluconobacter cerinus and Hanseniaspora osmophila Displaying Control Effect against Table Grape-Rot Pathogens. Antibiotics (Basel) 2021; 10:antibiotics10060663. [PMID: 34205962 PMCID: PMC8226828 DOI: 10.3390/antibiotics10060663] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 12/20/2022] Open
Abstract
Table grapes (Vitis vinifera) are affected by botrytis bunch rot and summer bunch rot, the latter a complex disease caused by Botrytis cinerea, Aspergillus spp., Penicillium expansum and Rhizopus stolonifer. To search for biocontrol alternatives, a new bioproduct composed of Gluconobacter cerinus and Hanseniaspora osmophila, a consortium called PUCV-VBL, was developed for the control of fungal rots in table grapes. Since this consortium presents new biocontrol species, the effect of their VOCs (volatile organic compounds) was evaluated under in vitro and in vivo conditions. The VOCs produced by the PUCV-VBL consortium showed the highest mycelial inhibition against Botrytis cinerea (86%). Furthermore, H. osmophila was able to inhibit sporulation of A. tubingensis and P. expansum. VOCs' effect in vivo was evaluated using berries from Red Globe, Thompson Seedless and Crimson Seedless grapes cultivars, demonstrating a mycelial inhibition by VOCs greater than 70% for all evaluated fungal species. The VOC identification of the PUCV-VBL consortium was analyzed by solid-phase microextraction coupled to gas chromatography-mass spectrometry (SPME-GCMS). A total 26 compounds were identified, including 1-butanol 3-methyl, propanoic acid ethyl ester, ethyl acetate, phenylethyl alcohol, isobutyl acetate and hexanoic acid ethyl ester. Our results show that VOCs are an important mode of action of the PUCV-VBL biological consortium.
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Affiliation(s)
- Ninoska Delgado
- Escuela de Agronomía, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, San Francisco s/n La Palma, Quillota 2260000, Chile; (M.O.); (F.C.); (R.P.); (E.S.)
- Correspondence: (N.D.); (X.B.); Tel.: +56-32-237-2930 (X.B.)
| | - Matías Olivera
- Escuela de Agronomía, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, San Francisco s/n La Palma, Quillota 2260000, Chile; (M.O.); (F.C.); (R.P.); (E.S.)
| | - Fabiola Cádiz
- Escuela de Agronomía, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, San Francisco s/n La Palma, Quillota 2260000, Chile; (M.O.); (F.C.); (R.P.); (E.S.)
| | - Guillermo Bravo
- Molecular Microbiology and Environmental Biotechnology Laboratory, Department of Chemistry & Center of Biotechnology Daniel Alkalay Lowitt, Universidad Técnica Federico Santa María, Avda. España 1680, Valparaíso 2390123, Chile;
| | - Iván Montenegro
- Escuela de Obstetricia y Puericultura, Facultad de Medicina, Universidad de Valparaíso, Angamos 655, Reñaca, Viña del Mar 2520000, Chile;
| | - Alejandro Madrid
- Laboratorio de Productos Naturales y Síntesis Orgánica (LPNSO), Departamento de Química, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Avda. Leopoldo Carvallo 270, Playa Ancha, Valparaíso 2340000, Chile;
| | - Claudia Fuentealba
- Escuela de Alimentos, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, Waddington 716, Valparaíso 2340000, Chile;
| | - Romina Pedreschi
- Escuela de Agronomía, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, San Francisco s/n La Palma, Quillota 2260000, Chile; (M.O.); (F.C.); (R.P.); (E.S.)
| | - Eduardo Salgado
- Escuela de Agronomía, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, San Francisco s/n La Palma, Quillota 2260000, Chile; (M.O.); (F.C.); (R.P.); (E.S.)
| | - Ximena Besoain
- Escuela de Agronomía, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, San Francisco s/n La Palma, Quillota 2260000, Chile; (M.O.); (F.C.); (R.P.); (E.S.)
- Correspondence: (N.D.); (X.B.); Tel.: +56-32-237-2930 (X.B.)
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19
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Saleh AE, Ul-Hassan Z, Zeidan R, Al-Shamary N, Al-Yafei T, Alnaimi H, Higazy NS, Migheli Q, Jaoua S. Biocontrol Activity of Bacillus megaterium BM344-1 against Toxigenic Fungi. ACS OMEGA 2021; 6:10984-10990. [PMID: 34056251 PMCID: PMC8153935 DOI: 10.1021/acsomega.1c00816] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 04/02/2021] [Indexed: 06/12/2023]
Abstract
Mycotoxins are secondary metabolites of some fungal species and represent important contaminants of food and feed. This study aimed to explore the biological control activity of Bacillus megaterium BM344-1 volatile organic compounds (VOCs) on the growth and mycotoxin production of single representatives of the toxigenic species Aspergillus flavus, Aspergillus carbonarius, Penicillium verrucosum, and Fusarium verticillioides. In vitro co-incubation experiments indicated the P. verrucosum isolate as the most sensitive one, with a growth inhibition ratio of 66.7%, followed by A. flavus (29.4%) and F. verticillioides (18.2%). Exposure of A. flavus, P. verrucosum, and F. verticillioides to BM344-1 VOCs resulted in complete inhibition of aflatoxins (AFB1, AFG1, and AFG2), ochratoxin A, and fumonisin B1 (FB1) synthesis on artificial media, respectively. In vivo experiments on maize kernels showed 51% inhibition of fungal growth on ears simultaneously infected with A. flavus spores and exposed to BM344-1 volatiles. Likewise, AF synthesis by A. flavus was significantly (p < 0.05) inhibited (25.34 ± 6.72 μg/kg) by bacterial volatiles as compared to that in control maize ears (91.81 ± 29.10 μg/kg). Gas chromatography-tandem mass spectrometry-based analysis of headspace volatiles revealed hexadecanoic acid methyl ester (palmitic acid) and tetracosane as bioactive compounds in the BM344-1 volatilome. Bacterial volatiles have promising potential to control the growth and mycotoxin synthesis of toxigenic fungi and may present valuable aid in the efforts to warrant food and feed safety.
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Affiliation(s)
- Aya Ehab Saleh
- Department
of Biological and Environmental Sciences, College of Arts and Science, Qatar University, P.O. Box 2713, Doha 2713, Qatar
| | - Zahoor Ul-Hassan
- Department
of Biological and Environmental Sciences, College of Arts and Science, Qatar University, P.O. Box 2713, Doha 2713, Qatar
| | - Randa Zeidan
- Department
of Biological and Environmental Sciences, College of Arts and Science, Qatar University, P.O. Box 2713, Doha 2713, Qatar
| | - Noora Al-Shamary
- Environmental
Science Center, Qatar University, P.O. Box 2713, Doha 2713, Qatar
| | - Thoraya Al-Yafei
- Environmental
Science Center, Qatar University, P.O. Box 2713, Doha 2713, Qatar
| | - Hajer Alnaimi
- Environmental
Science Center, Qatar University, P.O. Box 2713, Doha 2713, Qatar
| | - Nayla Salah Higazy
- Department
of Biological and Environmental Sciences, College of Arts and Science, Qatar University, P.O. Box 2713, Doha 2713, Qatar
| | - Quirico Migheli
- Dipartimento
di Agraria and Desertification Research Centre (NRD), Università degli Studi di Sassari, Viale Italia 39, Sassari I-07100, Italy
| | - Samir Jaoua
- Department
of Biological and Environmental Sciences, College of Arts and Science, Qatar University, P.O. Box 2713, Doha 2713, Qatar
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20
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Higazy NS, Saleh AE, Hassan ZU, Al Thani R, Migheli Q, Jaoua S. Investigation and application of Bacillus pumilus QBP344-3 in the control of Aspergillus carbonarius and ochratoxin A contamination. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107464] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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21
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Sun M, Ye S, Xu Z, Wan L, Zhao Y. Endophytic Bacillus altitudinis Q7 from Ginkgo biloba inhibits the growth of Alternaria alternata in vitro and its inhibition mode of action. BIOTECHNOL BIOTEC EQ 2021. [DOI: 10.1080/13102818.2021.1936639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Affiliation(s)
- Mingqi Sun
- Department of Food Science and Engineering, School of Food Science, Dalian Polytechnic University, Dalian, Liaoning, PR China
| | - Shuhong Ye
- Department of Food Science and Engineering, School of Food Science, Dalian Polytechnic University, Dalian, Liaoning, PR China
| | - Zhichao Xu
- Department of Food Science and Engineering, School of Food Science, Dalian Polytechnic University, Dalian, Liaoning, PR China
| | - Lu Wan
- Department of Food Science and Engineering, School of Food Science, Dalian Polytechnic University, Dalian, Liaoning, PR China
| | - Yuguang Zhao
- Department of Food Science and Engineering, School of Food Science, Dalian Polytechnic University, Dalian, Liaoning, PR China
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22
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Huang J, Huang A, Lu L, Jiang W, Zhang D, Wu Q, Li P, Zhong X. Improving the yield of Anoectochilus roxburghii by Bacillus licheniformis cultured in Agaricus bisporus industrial wastewater. ELECTRON J BIOTECHN 2020. [DOI: 10.1016/j.ejbt.2020.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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23
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Elsherbiny EA, Amin BH, Aleem B, Kingsley KL, Bennett JW. Trichoderma Volatile Organic Compounds as a Biofumigation Tool against Late Blight Pathogen Phytophthora infestans in Postharvest Potato Tubers. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:8163-8171. [PMID: 32790355 DOI: 10.1021/acs.jafc.0c03150] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We tested the ability of 14 strains of Trichoderma to emit volatile compounds that decreased or stopped the growth of Phytophthora infestans. Volatile organic compounds (VOCs) emitted from Trichoderma strains designated T41 and T45 inhibited the mycelial growth of P. infestans grown on a laboratory medium by 80 and 81.4%, respectively, and on potato tubers by 93.1 and 94.1%, respectively. Using the DNA sequence analysis of the translation elongation factor region, both Trichoderma strains were identified as Trichoderma atroviride. VOCs emitted by the strains were analyzed, and 39 compounds were identified. The most abundant compounds were 3-methyl-1-butanol, 6-pentyl-2-pyrone, 2-methyl-1-propanol, and acetoin. Electron microscopy of the hyphae treated with T. atroviride VOCs revealed serious morphological and ultrastructural damages, including cell deformation, collapse, and degradation of cytoplasmic organelles. To our knowledge, this is the first report describing the ability of Trichoderma VOCs to suppress the growth of the late blight potato pathogen.
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Affiliation(s)
- Elsherbiny A Elsherbiny
- Plant Pathology Department, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt
- Department of Plant Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08901, United States
| | - Basma H Amin
- Regional Center for Mycology and Biotechnology (RCMB), Al-Azhar University, Cairo 11651, Egypt
| | - Bushra Aleem
- Department of Plant Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08901, United States
- National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad 44000, Pakistan
| | - Kathryn L Kingsley
- Department of Plant Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08901, United States
| | - Joan W Bennett
- Department of Plant Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08901, United States
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24
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Alasmar R, Ul-Hassan Z, Zeidan R, Al-Thani R, Al-Shamary N, Alnaimi H, Migheli Q, Jaoua S. Isolation of a Novel Kluyveromyces marxianus Strain QKM-4 and Evidence of Its Volatilome Production and Binding Potentialities in the Biocontrol of Toxigenic Fungi and Their Mycotoxins. ACS OMEGA 2020; 5:17637-17645. [PMID: 32715249 PMCID: PMC7377640 DOI: 10.1021/acsomega.0c02124] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 06/26/2020] [Indexed: 06/11/2023]
Abstract
To overcome the economic losses associated with fungi and their toxic metabolites, environmentally safe and efficient approaches are needed. To this end, biological control using yeasts and safe bacterial strains and their products are being explored to replace synthetic fungicides. In the present study, the biocontrol effect of a yeast strain of Kluyveromyces marxianus, QKM-4, against the growth and mycotoxin synthesis potential of key toxigenic fungi was evaluated. In vitro assays were performed to find the application of yeast volatile organic compounds (VOCs) against fungal contamination on important agricultural commodities. The removal of ochratoxin A (OTA) and deoxynivalenol (DON) by living and heat-inactivated yeast cells was also explored. VOCs produced by strain QKM-4 were able to significantly limit the fungal growth of 17 fungal species belonging to genera Aspergillus, Penicillium, and Fusarium. Yeast VOCs were able to reduce OTA biosynthesis potential of Penicillium verrucosum and Aspergillus carbonarius by 99.6 and 98.7%, respectively. In vivo application of QKM-4 VOCs against Fusarium oxysporum and A. carbonarius infection on tomatoes and grapes, respectively, determined a complete inhibition of fungal spore germination. GC/MS-based analysis of yeast VOCs identified long-chain alkanes, including nonadecane, eicosane, docosane, heptacosane, hexatriacontane, and tetracosane. In vitro testing of the mycotoxin-binding potential of the living and heat-inactivated QKM-4 cells showed a reduction of OTA and DON up to 58 and 49%, respectively, from artificially contaminated buffers. Our findings clearly demonstrate the strong antifungal potential of K. marxianus QKM-4 and propose this strain as a strong candidate for application in agriculture to safeguard food and feed products.
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Affiliation(s)
- Reem Alasmar
- Department
of Biological and Environmental Sciences, College of Arts
and Science and Environmental Science Center, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Zahoor Ul-Hassan
- Department
of Biological and Environmental Sciences, College of Arts
and Science and Environmental Science Center, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Randa Zeidan
- Department
of Biological and Environmental Sciences, College of Arts
and Science and Environmental Science Center, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Roda Al-Thani
- Department
of Biological and Environmental Sciences, College of Arts
and Science and Environmental Science Center, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Noora Al-Shamary
- Department
of Biological and Environmental Sciences, College of Arts
and Science and Environmental Science Center, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Hajer Alnaimi
- Department
of Biological and Environmental Sciences, College of Arts
and Science and Environmental Science Center, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Quirico Migheli
- Dipartimento
di Agraria, Università degli Studi
di Sassari, Viale Italia 39, I-07100 Sassari, Italy
| | - Samir Jaoua
- Department
of Biological and Environmental Sciences, College of Arts
and Science and Environmental Science Center, Qatar University, P.O. Box 2713, Doha, Qatar
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25
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Mülner P, Schwarz E, Dietel K, Junge H, Herfort S, Weydmann M, Lasch P, Cernava T, Berg G, Vater J. Profiling for Bioactive Peptides and Volatiles of Plant Growth Promoting Strains of the Bacillus subtilis Complex of Industrial Relevance. Front Microbiol 2020; 11:1432. [PMID: 32695084 PMCID: PMC7338577 DOI: 10.3389/fmicb.2020.01432] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 06/02/2020] [Indexed: 12/14/2022] Open
Abstract
Plant growth promoting rhizobacteria attain increasing importance in agriculture as biofertilizers and biocontrol agents. These properties significantly depend on the formation of bioactive compounds produced by such organisms. In our work we investigated the biosynthetic potential of 13 industrially important strains of the Bacillus subtilis complex by mass spectrometric methodology. Typing of these organisms was performed with MALDI-TOF mass spectrometry followed by comprehensive profiling of their bioactive peptide products. Volatiles were determined by gas chromatography-mass spectrometry. Representative products of the members of the B. subtilis complex investigated in detail were: the surfactin familiy (surfactins, lichenysins, pumilacidins); the iturin family (iturins, mycosubtilins and bacillomycins); plantazolicin and the dual lantibiotics lichenicidins, as well as a wide spectrum of volatiles, such as hydrocarbons (alkanes/alkenes), alcohols, ketones, sulfur-containing compounds and pyrazines. The subcomplexes of the B. subtilis organizational unit; (a) B. subtilis/Bacillus atrophaeus; (b) B. amyloliquefaciens/B. velezensis; (c) B. licheniformis, and (d) B. pumilus are equipped with specific sets of these compounds which are the basis for the evaluation of their biotechnological and agricultural usage. The 13 test strains were evaluated in field trials for growth promotion of potato and maize plants. All of the implemented strains showed efficient growth stimulation of these plants. The highest effects were obtained with B. velezensis, B. subtilis, and B. atrophaeus strains.
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Affiliation(s)
- Pascal Mülner
- ABiTEP GmbH, Berlin, Germany
- Institute of Environmental Biotechnology, Graz University of Technology, Graz, Austria
| | | | | | | | - Stefanie Herfort
- ZBS6: Proteomics and Spectroscopy, Robert Koch-Institut, Berlin, Germany
| | - Max Weydmann
- ZBS6: Proteomics and Spectroscopy, Robert Koch-Institut, Berlin, Germany
| | - Peter Lasch
- ZBS6: Proteomics and Spectroscopy, Robert Koch-Institut, Berlin, Germany
| | - Tomislav Cernava
- Institute of Environmental Biotechnology, Graz University of Technology, Graz, Austria
| | - Gabriele Berg
- Institute of Environmental Biotechnology, Graz University of Technology, Graz, Austria
| | - Joachim Vater
- ABiTEP GmbH, Berlin, Germany
- ZBS6: Proteomics and Spectroscopy, Robert Koch-Institut, Berlin, Germany
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In-vitro Application of a Qatari Burkholderia cepacia strain (QBC03) in the Biocontrol of Mycotoxigenic Fungi and in the Reduction of Ochratoxin A biosynthesis by Aspergillus carbonarius. Toxins (Basel) 2019; 11:toxins11120700. [PMID: 31810315 PMCID: PMC6950548 DOI: 10.3390/toxins11120700] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 11/17/2019] [Accepted: 11/26/2019] [Indexed: 01/12/2023] Open
Abstract
Mycotoxins are secondary metabolites produced by certain filamentous fungi, causing human and animal health issues upon the ingestion of contaminated food and feed. Among the safest approaches to the control of mycotoxigenic fungi and mycotoxin detoxification is the application of microbial biocontrol agents. Burkholderiacepacia is known for producing metabolites active against a broad number of pathogenic fungi. In this study, the antifungal potential of a Qatari strain of Burkholderia cepacia (QBC03) was explored. QBC03 exhibited antifungal activity against a wide range of mycotoxigenic, as well as phytopathogenic, fungal genera and species. The QBC03 culture supernatant significantly inhibited the growth of Aspergillus carbonarius, Fusarium culmorum and Penicillium verrucosum in PDA medium, as well as A. carbonarius and P. verrucosum biomass in PDB medium. The QBC03 culture supernatant was found to dramatically reduce the synthesis of ochratoxin A (OTA) by A. carbonarius, in addition to inducing mycelia malformation. The antifungal activity of QBC03’s culture extract was retained following thermal treatment at 100 °C for 30 min. The findings of the present study advocate that QBC03 is a suitable biocontrol agent against toxigenic fungi, due to the inhibitory activity of its thermostable metabolites.
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