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Pereyra MM, Díaz MA, Vero S, Dib JR. Enhancing biological control of postharvest green mold in lemons: Synergistic efficacy of native yeasts with diverse mechanisms of action. PLoS One 2024; 19:e0301584. [PMID: 38578716 PMCID: PMC10997081 DOI: 10.1371/journal.pone.0301584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/19/2024] [Indexed: 04/07/2024] Open
Abstract
Argentina is among the most important lemon fruit producers in the world. Penicillium digitatum is the primary lemon fungal phytopathogen, causing green mold during the postharvest. Several alternatives to the use of synthetic fungicides have been developed, being the use of biocontrol yeasts one of the most promising. Although many of the reports are based on the use of a single yeast species, it has been shown that the combination of agents with different mechanisms of action can increase control efficiency through synergistic effects. The combined use of native yeasts with different mechanisms of action had not been studied as a biological control strategy in lemons. In this work, the mechanisms of action of native yeasts (Clavispora lusitaniae AgL21, Clavispora lusitaniae AgL2 and Clavispora lusitaniae AcL2) with biocontrol activity against P. digitatum were evaluated. Isolate AgL21 was selected for its ability to form biofilm, colonize lemon wounds, and inhibit fungal spore germination. The compatibility of C. lusitaniae AgL21 with two killer yeasts of the species Kazachstania exigua (AcL4 and AcL8) was evaluated. In vivo assays were then carried out with the yeasts applied individually or mixed in equal cell concentrations. AgL21 alone was able to control green mold with 87.5% efficiency, while individual killer yeasts were significantly less efficient (43.3% and 38.3%, respectively). Inhibitory effects were increased when C. lusitaniae AgL21 and K. exigua strains were jointly applied. The most efficient treatment was the combination of AgL21 and AcL4, reaching 100% efficiency in wound protection. The combination of AgL21 with AcL8 was as well promising, with an efficiency of 97.5%. The combined application of native yeasts showed a synergistic effect considering that the multiple mechanisms of action involved could hinder the development of green mold in lemon more efficiently than using single yeasts. Therefore, this work demonstrates that the integration of native yeasts with diverse modes of action can provide new insights to formulate effective microbial consortia. This could lead to the development of tailor-made biofungicides, allowing control of postharvest fungal diseases in lemons while remaining competitive with traditionally used synthetic chemicals.
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Affiliation(s)
- Martina María Pereyra
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Mariana Andrea Díaz
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Silvana Vero
- Área de Microbiología, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Julián Rafael Dib
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Miguel de Tucumán, Tucumán, Argentina
- Facultad de Bioquímica, Química y Farmacia, Instituto de Microbiología, Universidad Nacional de Tucumán, San Miguel de Tucumán, Tucumán, Argentina
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He Y, Degraeve P, Oulahal N. Bioprotective yeasts: Potential to limit postharvest spoilage and to extend shelf life or improve microbial safety of processed foods. Heliyon 2024; 10:e24929. [PMID: 38318029 PMCID: PMC10839994 DOI: 10.1016/j.heliyon.2024.e24929] [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] [Received: 12/22/2023] [Revised: 01/16/2024] [Accepted: 01/17/2024] [Indexed: 02/07/2024] Open
Abstract
Yeasts are a widespread group of microorganisms that are receiving increasing attention from scientists and industry. Their diverse biological activities and broad-spectrum antifungal activity make them promising candidates for application, especially in postharvest biocontrol of fruits and vegetables and food biopreservation. The present review focuses on recent knowledge of the mechanisms by which yeasts inhibit pathogenic fungi and/or spoilage fungi and bacteria. The main mechanisms of action of bioprotective yeasts include competition for nutrients and space, synthesis and secretion of antibacterial compounds, mycoparasitism and the secretion of lytic enzymes, biofilm formation, quorum sensing, induced systemic resistance of fruit host, as well as the production of reactive oxygen species. Preadaptation of yeasts to abiotic stresses such as cold acclimatization and sublethal oxidative stress can improve the effectiveness of antagonistic yeasts and thus more effectively play biocontrol roles under a wider range of environmental conditions, thereby reducing economic losses. Combined application with other antimicrobial substances can effectively improve the efficacy of yeasts as biocontrol agents. Yeasts show great potential as substitute for chemical additives in various food fields, but their commercialization is still limited. Hence, additional investigation is required to explore the prospective advancements of yeasts in the field of biopreservation for food.
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Affiliation(s)
- Yan He
- Université Lyon, Université Claude Bernard Lyon 1, BioDyMIA Research Unit, ISARA, 155 Rue Henri de Boissieu, F-01000, Bourg en Bresse, France
| | - Pascal Degraeve
- Université Lyon, Université Claude Bernard Lyon 1, BioDyMIA Research Unit, ISARA, 155 Rue Henri de Boissieu, F-01000, Bourg en Bresse, France
| | - Nadia Oulahal
- Université Lyon, Université Claude Bernard Lyon 1, BioDyMIA Research Unit, ISARA, 155 Rue Henri de Boissieu, F-01000, Bourg en Bresse, France
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3
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Wang X, Wang R, He S, Weng Y, Lan B, Zhou L, Yang H. Biocontrol potential of Bacillus velezensis wr8 secondary metabolites against Penicillium sp. Gene 2024; 892:147872. [PMID: 37802404 DOI: 10.1016/j.gene.2023.147872] [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: 07/24/2023] [Revised: 09/26/2023] [Accepted: 10/03/2023] [Indexed: 10/10/2023]
Abstract
The aim of this study was to isolate and identify native Bacillus from citrus fruits, with inhibition phenotypes to Penicillium sp. We investigated the antifungal effect of Bacillus velezensis wr8 on the postharvest pathogens Penicillium sp. inoculated on fruits, as well as on the growth of these fungi on Petri dishes with defined media. MALDI-TOF MS was conducted to enlighten the underlying mechanism. Results showed that Bacillus velezensis wr8 significantly inhibited Penicillium sp. growth in vitro. Moreover, secondary metabolites suppressed the disease development of citrus fruits artificially inoculated with Penicillium sp. in 25 °C. Furthermore, MALDI-TOF MS indicated that lipoprotein with the molecular mass of 30.2 kDa was a key component about against Penicillium sp. In addition, the secondary metabolites with antibacterial activity against Escherichia coli showed antimicrobial peptide with the molecular weight of 9.8 kDa. These results demonstrated that Bacillus velezensis wr8 could produce lipoprotein and antimicrobial peptide to inhibit Penicillium sp. and Escherichia coli which has broad application prospect in the future development. Finally, Bacillus velezensis wr8 is to provide data support for the development and utilization of high activity bacteriocin at room temperature and its application in the field of food safety.
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Affiliation(s)
- Xiaohu Wang
- Guangxi Academy of Sciences, Nanning 530003, China; College of Life Science and Technology, Guangxi University, Nanning 530005, China
| | - Rui Wang
- Guangxi Academy of Sciences, Nanning 530003, China; College of Life Science and Technology, Guangxi University, Nanning 530005, China
| | - Shang He
- Guangxi Academy of Sciences, Nanning 530003, China; College of Life Science and Technology, Guangxi University, Nanning 530005, China
| | - Yuting Weng
- Guangxi Academy of Sciences, Nanning 530003, China; College of Life Science and Technology, Guangxi University, Nanning 530005, China
| | - Baofeng Lan
- Guangxi Academy of Sciences, Nanning 530003, China; College of Life Science and Technology, Guangxi University, Nanning 530005, China
| | - Liqin Zhou
- Guangxi Academy of Sciences, Nanning 530003, China; College of Life Science and Technology, Guangxi University, Nanning 530005, China.
| | - Hui Yang
- Guangxi Academy of Sciences, Nanning 530003, China; College of Life Science and Technology, Guangxi University, Nanning 530005, China.
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4
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Sipiczki M. Identification of antagonistic yeasts as potential biocontrol agents: Diverse criteria and strategies. Int J Food Microbiol 2023; 406:110360. [PMID: 37591131 DOI: 10.1016/j.ijfoodmicro.2023.110360] [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: 06/21/2023] [Revised: 07/30/2023] [Accepted: 08/07/2023] [Indexed: 08/19/2023]
Abstract
Plant pathogenic and food spoilage microorganisms cause serious losses in crop production and severe damage during food manufacturing, transportation and storage. Synthetic antimicrobial agents are commonly used to control their propagation and harmful activities. However, the recent trend is shifting from chemicals towards safer and more eco-friendly alternatives. The use of antagonistic microorganisms as biological antimicrobial agents is becoming popular throughout the world to replace chemical agents. High numbers of microorganisms have turned out to exert adverse/inhibitory effects on other microorganisms including pathogens and spoiling strains. However, most of them are only active under laboratory conditions and their activity is sensitive to environmental changes. Only a small number of them can be used to manufacture biological protective products on an industrial scale. Therefore, there is a great need to identify additional antagonists. Yeasts have come to the forefront of attention because antimicrobial antagonism is fairly widespread among them. In the recent years, numerous excellent review articles covered various aspects of the phenomenon of antimicrobial antagonism of yeasts. However, none of them dealt with how antagonistic yeasts can be sought and identified, despite the high number and diverse efficiency of screening and identification procedures. As researchers working in different laboratories use different criteria and different experimental set-ups, a yeast strain found antagonistic in one laboratory may prove to be non-antagonistic in another laboratory. This review aims to provide a comprehensive and partially critical overview of the wide diversity of identification criteria and procedures to help researchers choose appropriate screening and identification strategies.
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Affiliation(s)
- M Sipiczki
- Department of Genetics and Applied Microbiology, University of Debrecen, Debrecen, Hungary.
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Lombardo MF, Panebianco S, Restuccia C, Cirvilleri G. Biocontrol Efficacy of Metschnikowia spp. Yeasts in Organic Vineyards against Major Airborne Diseases of Table Grapes in the Field and in Postharvest. Foods 2023; 12:3508. [PMID: 37761216 PMCID: PMC10528312 DOI: 10.3390/foods12183508] [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: 09/04/2023] [Revised: 09/15/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023] Open
Abstract
The aim of this work was to evaluate the efficacy of two antagonistic yeasts, Metschnikowia pulcherrima strain MPR3 and M. fructicola strain NRRL Y-27328 (commercial product NOLI), applied in addition to the "on-farm biological treatments" (BIO) carried out during the production season, for the containment of powdery mildew and grey mould diseases on organic table grapes 'Italia'. The yeast strains were applied in the field three times, and their efficacy was evaluated during the production season and under postharvest conditions. Overall, M. pulcherrima MPR3 combined with BIO treatments reduced disease incidence caused by Erysiphe necator and disease incidence and severity caused by Botrytis cinerea with values between 67.8% and 86.2%, showing higher efficacy than BIO treatments applied alone and in combination with NOLI. Field treatments based on BIO+MPR3 maintained their performance also during fruit storage, protecting grape berries from grey mould development to a greater extent than the other treatments (disease reduction of about 98%). Thus, the presence of M. pulcherrima MPR3 seems to improve disease management both in the field and in postharvest environments, without negative impacts on grape microbial communities. These findings highlight the potential of M. pulcherrima MPR3 as a promising alternative strategy for disease control in organic vineyards and in postharvest, providing sustainable solutions to improve food quality and safety.
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Affiliation(s)
| | | | - Cristina Restuccia
- Di3A, Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, Via S. Sofia 100, 95123 Catania, Italy; (M.F.L.); (S.P.); (G.C.)
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Albertini J, Rocha RK, Bastos RG, Ceccato-Antonini SR, Rosa-Magri MM. Phosphate solubilization and indole acetic acid production by rhizosphere yeast Torulaspora globosa: improvement of culture conditions for better performance in vitro. 3 Biotech 2022; 12:262. [PMID: 36091086 PMCID: PMC9448844 DOI: 10.1007/s13205-022-03322-z] [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: 10/21/2021] [Accepted: 08/22/2022] [Indexed: 11/24/2022] Open
Abstract
The rhizosphere yeast Torulaspora globosa is known to produce indole acetic acid (IAA) and to solubilize minerals. Due to the prospective use of this yeast as a biostimulant for agricultural applications, this work aimed to optimize the cultural conditions for both IAA production and phosphate solubilization. For phosphate solubilization, the temperature (20, 25 and 30 °C), initial medium pH (3.0, 5.0, and 7.0), and shaker speed (without mixing, 100 rpm, 150 rpm, and 200 rpm) were considered using the one-factor-at-a-time (OFAT) design. Temperature of 25 °C, initial medium pH 7.0, and static cultures were the conditions of greatest phosphate solubilization, with 40% of the total phosphorus content solubilized from calcium phosphate (419.86 mg L-1) after 48 h. By using the response surface methodology, the maximum IAA production (217.73 µg mL-1) was obtained with the highest initial pH 7.0, the lowest nitrogen, and glucose concentrations (5 g L-1 and 10 g L-1, respectively) and the lowest agitator speed (100 rpm). Further tests indicated that nitrogen affected significantly IAA production and the absence of nitrogen in the medium promoted higher IAA production (457 µg mL-1). The results obtained here may contribute to the scaling up for industrial and agricultural applications of a yeast-based product with T. globosa.
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Affiliation(s)
- Jessica Albertini
- Pós-Graduação Em Produção Vegetal E Bioprocessos Associados, Universidade Federal de São Carlos, Rod Anhanguera km 174, Araras, São Paulo, Brazil
| | - Renata K. Rocha
- Pós-Graduação Em Produção Vegetal E Bioprocessos Associados, Universidade Federal de São Carlos, Rod Anhanguera km 174, Araras, São Paulo, Brazil
| | - Reinaldo Gaspar Bastos
- Departamento de Tecnologia Agroindustrial E Socio-Economia Rural, Universidade Federal de São Carlos, Rod. Anhanguera km 174, Araras, São Paulo, Brazil
| | - Sandra Regina Ceccato-Antonini
- Departamento de Tecnologia Agroindustrial E Socio-Economia Rural, Universidade Federal de São Carlos, Rod. Anhanguera km 174, Araras, São Paulo, Brazil
| | - Márcia Maria Rosa-Magri
- Departamento de Recursos Naturais E Proteção Ambiental, Universidade Federal de São Carlos, Rod Anhanguera km 174, Araras, São Paulo, Brazil
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Hammami R, Oueslati M, Smiri M, Nefzi S, Ruissi M, Comitini F, Romanazzi G, Cacciola SO, Sadfi Zouaoui N. Epiphytic Yeasts and Bacteria as Candidate Biocontrol Agents of Green and Blue Molds of Citrus Fruits. J Fungi (Basel) 2022; 8:jof8080818. [PMID: 36012806 PMCID: PMC9410262 DOI: 10.3390/jof8080818] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/05/2022] [Accepted: 07/05/2022] [Indexed: 11/18/2022] Open
Abstract
Overall, 180 yeasts and bacteria isolated from the peel of citrus fruits were screened for their in vitro antagonistic activity against Penicillium digitatum and P. italicum, causative agents of green and blue mold of citrus fruits, respectively. Two yeast and three bacterial isolates were selected for their inhibitory activity on mycelium growth. Based on the phylogenetic analysis of 16S rDNA and ITS rDNA sequences, the yeast isolates were identified as Candida oleophila and Debaryomyces hansenii while the bacterial isolates were identified as Bacillus amyloliquefaciens, B. pumilus and B. subtilis. All five selected isolates significantly reduced the incidence of decay incited by P. digitatum and P. italicum on ‘Valencia’ orange and ‘Eureka’ lemon fruits. Moreover, they were effective in preventing natural infections of green and blue mold of fruits stored at 4 °C. Treatments with antagonistic yeasts and bacteria did not negatively affect the quality and shelf life of fruits. The antagonistic efficacy of the five isolates depended on multiple modes of action, including the ability to form biofilms and produce antifungal lipopeptides, lytic enzymes and volatile compounds. The selected isolates are promising as biocontrol agents of postharvest green and blue molds of citrus fruits.
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Affiliation(s)
- Rania Hammami
- Laboratoire de Mycologie, Pathologies et Biomarqueurs (LR16ES05), Département de Biologie, Université de Tunis-El Manar, Tunis 2092, Tunisia; (R.H.); (M.O.); (M.S.); (S.N.)
| | - Maroua Oueslati
- Laboratoire de Mycologie, Pathologies et Biomarqueurs (LR16ES05), Département de Biologie, Université de Tunis-El Manar, Tunis 2092, Tunisia; (R.H.); (M.O.); (M.S.); (S.N.)
| | - Marwa Smiri
- Laboratoire de Mycologie, Pathologies et Biomarqueurs (LR16ES05), Département de Biologie, Université de Tunis-El Manar, Tunis 2092, Tunisia; (R.H.); (M.O.); (M.S.); (S.N.)
| | - Souhaila Nefzi
- Laboratoire de Mycologie, Pathologies et Biomarqueurs (LR16ES05), Département de Biologie, Université de Tunis-El Manar, Tunis 2092, Tunisia; (R.H.); (M.O.); (M.S.); (S.N.)
| | - Mustapha Ruissi
- Laboratoire de Biotechnologie Appliquée à l’Agriculture, INRA Tunisie, Université de Carthage, Ariana 2049, Tunisia;
| | - Francesca Comitini
- Department of Life and Environmental Sciences, Marche Polytechnic University, Via Brecce Bianche, 60131 Ancona, Italy;
| | - Gianfranco Romanazzi
- Plant Pathology, Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, Via Brecce Bianche, 60131 Ancona, Italy;
| | - Santa Olga Cacciola
- Plant Pathology, Department of Agriculture, Food and Environment, University of Catania, V.S. Sofia, 100-95123 Catania, Italy;
| | - Najla Sadfi Zouaoui
- Laboratoire de Mycologie, Pathologies et Biomarqueurs (LR16ES05), Département de Biologie, Université de Tunis-El Manar, Tunis 2092, Tunisia; (R.H.); (M.O.); (M.S.); (S.N.)
- Correspondence:
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8
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Parafati L, Restuccia C, Cirvilleri G. Efficacy and mechanism of action of food isolated yeasts in the control of Aspergillus flavus growth on pistachio nuts. Food Microbiol 2022; 108:104100. [DOI: 10.1016/j.fm.2022.104100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 07/21/2022] [Accepted: 07/22/2022] [Indexed: 12/01/2022]
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Application of Bioactive Coatings with Killer Yeasts to Control Post-Harvest Apple Decay Caused by Botrytis cinerea and Penicillium italicum. Foods 2022; 11:foods11131868. [PMID: 35804682 PMCID: PMC9266268 DOI: 10.3390/foods11131868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/18/2022] [Accepted: 06/22/2022] [Indexed: 11/16/2022] Open
Abstract
A new method was proposed to produce alginate bio-films containing Pichia membranifaciens and Wickerhamomyces anomalus killer yeast to control the post-harvest fungal decay in organic apples caused by Botrytis cinerea and Penicillium italicum. Coatings with W. anomalus killer yeast effectively controlled the growth of P. italicum during storage at 22 °C. W. anomalus killer yeast incorporated in alginate reduced the P. italicum incidence from 90% (control) to 35% after 14 days of storage at 22 °C. Alginate biofilms with W. anomalus or P. membranifaciens also limited the incidence of the fungal decay of apples inoculated with B. cinerea compared with the control fruits, although the antagonistic capability against B. cinerea was lower than against P. italicum. The survival of W. anomalus cells in alginate coating was higher than P. membranifaciens. The incorporation of killer yeasts into alginate had no significant effect on the mechanical properties (tensile strength, percent elongation at break) of alginate coating, however, they increased the thickness of the biofilm. The bioactive coating reduced the fruit weight loss and had no significant effects on the fruit firmness during storage at 2 °C. As organic apples, produced without any synthetic fungicides, are especially prone to fungal decay during storage, the proposed alginate biofilms containing killer yeast seem to be a very promising solution by offering non-chemical, biological control of post-harvest pathogens.
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Microbial natural bioactive formulations in citrus development. BIOTECHNOLOGY REPORTS 2022; 34:e00718. [PMID: 35686010 PMCID: PMC9171446 DOI: 10.1016/j.btre.2022.e00718] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 01/30/2022] [Accepted: 02/22/2022] [Indexed: 02/02/2023]
Abstract
Efficient microorganisms as the natural bioactive are better than commercial products. Microbial inoculants maintained the time of the oat and fallow straw columns placed. The use of inoculums with an oat straw cover resulted in positive effects. Results showed the viability of using efficient microorganisms in citriculture. Farmers can produce efficient microorganisms on their properties at low costs.
Efficient Microorganisms (EM) are commonly used in organic crops; however, there are no studies on their effects on the production of citrus seedlings. The work aimed to evaluate the impact of applying the inoculants Native Efficient Microorganisms (NEM) and the commercial product EM1® in forming the seedling of the rootstock Poncirus trifoliata (L.) Raf and in the development of young plants of Sweet Orange “Valência” (Citrus sinensis (L.) Osbeck) and Murcott tangor (Citrus sinensis x Citrus reticulata Blanco). The inoculant based on efficient microorganisms from the homemade technology of capture and multiplication, native efficient microorganisms (NEM), showed greater microbial diversity when compared to the commercial product EM1®. The results obtained from the dry mass analysis of the Valência orange and Murcott tangor plants indicate that positive effects resulting from the use of EM1® and NEM inoculums can be obtained by cultivating the respective crops in a system with oat straw cover. It was observed that the use of efficient microorganisms, as microbial natural bioactive formulation, has potential use in citrus and that farmers with fewer resources will be able to produce the microorganisms on their properties.
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Parafati L, Palmeri R, Pitino I, Restuccia C. Killer yeasts isolated from olive brines: Technological and probiotic aptitudes. Food Microbiol 2022; 103:103950. [DOI: 10.1016/j.fm.2021.103950] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 11/18/2021] [Accepted: 11/18/2021] [Indexed: 12/18/2022]
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12
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The Role of Plasma Membrane Pleiotropic Drug Resistance Transporters in the Killer Activity of Debaryomyces hansenii and Wickerhamomyces anomalus Toxins. Toxins (Basel) 2022; 14:toxins14030180. [PMID: 35324677 PMCID: PMC8955487 DOI: 10.3390/toxins14030180] [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: 02/05/2022] [Revised: 02/22/2022] [Accepted: 02/24/2022] [Indexed: 02/04/2023] Open
Abstract
The killer strains of Debaryomyces hansenii and Wickerhamomyces anomalus species secrete antimicrobial proteins called killer toxins which are active against selected fungal phytopathogens. In our research, we attempted to investigate the role of plasma membrane pleiotropic drug resistance (PDR) transporters (Pdr5p and Snq2p) in the mechanism of defense against killer toxins. Saccharomyces cerevisiae mutant strains with strengthened or weakened pleiotropic drug resistance due to increased or reduced number of mentioned PDR efflux pumps were tested for killer toxin susceptibility. The present study demonstrates the influence of the Snq2p efflux pump in immunity to W.anomalus BS91 killer toxin. It was also shown that the activity of killer toxins of D. hansenii AII4b, KI2a, MI1a and CBS767 strains is regulated by other transporters than those influencing W. anomalus killer toxin activity. In turn, this might be related to the functioning of the Pdr5p transporter and a complex cross-talk between several regulatory multidrug resistance networks. To the best of our knowledge, this is the first study that reports the involvement of PDR transporters in the cell membrane of susceptible microorganisms in resistance to killer yeasts’ toxins.
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Hernandez-Montiel LG, Droby S, Preciado-Rangel P, Rivas-García T, González-Estrada RR, Gutiérrez-Martínez P, Ávila-Quezada GD. A Sustainable Alternative for Postharvest Disease Management and Phytopathogens Biocontrol in Fruit: Antagonistic Yeasts. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10122641. [PMID: 34961112 PMCID: PMC8708500 DOI: 10.3390/plants10122641] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/18/2021] [Accepted: 11/26/2021] [Indexed: 05/06/2023]
Abstract
Postharvest diseases of fruits caused by phytopathogens cause losses up to 50% of global production. Phytopathogens control is performed with synthetic fungicides, but the application causes environmental contamination problems and human and animal health in addition to generating resistance. Yeasts are antagonist microorganisms that have been used in the last years as biocontrol agents and in sustainable postharvest disease management in fruits. Yeast application for biocontrol of phytopathogens has been an effective action worldwide. This review explores the sustainable use of yeasts in each continent, the main antagonistic mechanisms towards phytopathogens, their relationship with OMIC sciences, and patents at the world level that involve yeast-based-products for their biocontrol.
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Affiliation(s)
- Luis G. Hernandez-Montiel
- Centro de Investigaciones Biológicas del Noroeste, Calle Instituto Politécnico Nacional 195, Col. Playa Palo de Santa Rita Sur, La Paz 23096, Mexico
- Correspondence: (L.G.H.-M.); (G.D.Á.-Q.)
| | - Samir Droby
- Department of Postharvest Science, Agricultural Research Organization, The Volcani Center, P.O. Box 15159, Rishon LeZion 7505101, Israel;
| | - Pablo Preciado-Rangel
- Tecnológico Nacional de México, Instituto Tecnológico de Torreón, Carretera Torreón-San Pedro, Km 7.5, Ejido Ana, Torreón 27170, Mexico;
| | - Tomás Rivas-García
- Departamento de Sociología Rural, Universidad Autónoma Chapingo, Carr. Federal México-Texcoco, Km 38.5, San Diego 56230, Mexico;
| | - Ramsés R. González-Estrada
- Tecnológico Nacional de México, Instituto Tecnológico de Tepic, Avenida Tecnológico 2595, Col. Lagos del Country, Tepic 63175, Mexico; (R.R.G.-E.); (P.G.-M.)
| | - Porfirio Gutiérrez-Martínez
- Tecnológico Nacional de México, Instituto Tecnológico de Tepic, Avenida Tecnológico 2595, Col. Lagos del Country, Tepic 63175, Mexico; (R.R.G.-E.); (P.G.-M.)
| | - Graciela D. Ávila-Quezada
- Facultad de Ciencias Agrotecnológicas, Universidad Autónoma de Chihuahua, Escorza 900, Col. Centro, Chihuahua 31000, Mexico
- Correspondence: (L.G.H.-M.); (G.D.Á.-Q.)
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14
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Ferraz P, Brandão RL, Cássio F, Lucas C. Moniliophthora perniciosa, the Causal Agent of Cacao Witches' Broom Disease Is Killed in vitro by Saccharomyces cerevisiae and Wickerhamomyces anomalus Yeasts. Front Microbiol 2021; 12:706675. [PMID: 34630345 PMCID: PMC8493218 DOI: 10.3389/fmicb.2021.706675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 08/25/2021] [Indexed: 01/12/2023] Open
Abstract
Cacao plantations from South America have been afflicted with the severe fungal disease known as Witches’ Broom Disease (WBD), caused by the basidiomycete Moniliophthora perniciosa. Yeasts are increasingly recognized as good fungal biocides, although their application is still mostly restricted to the postharvest control of plant and fruit decay. Their possible utilization in the field, in a preharvest phase, is nevertheless promising, particularly if the strains are locally adapted and evolved and if they belong to species considered safe for man and the environment. In this work, a group of yeast strains originating from sugarcane-based fermentative processes in Brazil, the cacao-producing country where the disease is most severe, were tested for their ability to antagonize M. perniciosa in vitro. Wickerhamomyces anomalus LBCM1105 and Saccharomyces cerevisiae strains LBCM1112 from spontaneous fermentations used to produce cachaça, and PE2 widely used in Brazil in the industrial production of bioethanol, efficiently antagonized six strains of M. perniciosa, originating from several South American countries. The two fastest growing fungal strains, both originating from Brazil, were further used to assess the mechanisms underlying the yeasts’ antagonism. Yeasts were able to inhibit fungal growth and kill the fungus at three different temperatures, under starvation, at different culture stages, or using an inoculum from old yeast cultures. Moreover, SEM analysis revealed that W. anomalus and S. cerevisiae PE2 cluster and adhere to the hyphae, push their surface, and fuse to them, ultimately draining the cells. This behavior concurs with that classified as necrotrophic parasitism/mycoparasitism. In particular, W. anomalus within the adhered clusters appear to be ligated to each other through roundish groups of fimbriae-like structures filled with bundles of microtubule-sized formations, which appear to close after cells detach, leaving a scar. SEM also revealed the formation of tube-like structures apparently connecting yeast to hypha. This evidence suggests W. anomalus cells form a network of yeast cells connecting with each other and with hyphae, supporting a possible cooperative collective killing and feeding strategy. The present results provide an initial step toward the formulation of a new eco-friendly and effective alternative for controlling cacao WBD using live yeast biocides.
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Affiliation(s)
- Pedro Ferraz
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho-Campus de Gualtar, Braga, Portugal.,Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho-Campus de Gualtar, Braga, Portugal
| | - Rogelio Lopes Brandão
- Nucleus of Research in Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Brazil
| | - Fernanda Cássio
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho-Campus de Gualtar, Braga, Portugal.,Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho-Campus de Gualtar, Braga, Portugal
| | - Cândida Lucas
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho-Campus de Gualtar, Braga, Portugal.,Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho-Campus de Gualtar, Braga, Portugal
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15
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El-Saber Batiha G, Hussein DE, Algammal AM, George TT, Jeandet P, Al-Snafi AE, Tiwari A, Pagnossa JP, Lima CM, Thorat ND, Zahoor M, El-Esawi M, Dey A, Alghamdi S, Hetta HF, Cruz-Martins N. Application of natural antimicrobials in food preservation: Recent views. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108066] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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16
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Amarouchi Z, Esmaeel Q, Sanchez L, Jacquard C, Hafidi M, Vaillant-Gaveau N, Ait Barka E. Beneficial Microorganisms to Control the Gray Mold of Grapevine: From Screening to Mechanisms. Microorganisms 2021; 9:microorganisms9071386. [PMID: 34202293 PMCID: PMC8304954 DOI: 10.3390/microorganisms9071386] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/22/2021] [Accepted: 06/23/2021] [Indexed: 11/16/2022] Open
Abstract
In many vineyards around the world, Botrytis cinerea (B. cinerea) causes one of the most serious diseases of aerial grapevine (Vitis vinifera L.) organs. The control of the disease relies mainly on the use of chemical products whose use is increasingly challenged. To develop new sustainable methods to better resist B. cinerea, beneficial bacteria were isolated from vineyard soil. Once screened based on their antimicrobial effect through an in vivo test, two bacterial strains, S3 and S6, were able to restrict the development of the pathogen and significantly reduced the Botrytis-related necrosis. The photosynthesis analysis showed that the antagonistic strains also prevent grapevines from considerable irreversible PSII photo-inhibition four days after infection with B. cinerea. The 16S rRNA gene sequences of S3 exhibited 100% similarity to Bacillus velezensis, whereas S6 had 98.5% similarity to Enterobacter cloacae. On the other hand, the in silico analysis of the whole genome of isolated strains has revealed the presence of “biocontrol-related” genes supporting their plant growth and biocontrol activities. The study concludes that those bacteria could be potentially useful as a suitable biocontrol agent in harvested grapevine.
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Affiliation(s)
- Zakaria Amarouchi
- Université de Reims Champagne-Ardenne, RIBP EA4707 USC INRAE 1488, SFR Condorcet FR CNRS 3417, 51100 Reims, France; (Z.A.); (Q.E.); (L.S.); (C.J.); (N.V.-G.)
- Laboratoire de Biotechnologie Végétale et Valorisation des Bio-Ressources, Faculté des Sciences, Université Moulay Ismail, Meknès B.P. 11201, Morocco;
| | - Qassim Esmaeel
- Université de Reims Champagne-Ardenne, RIBP EA4707 USC INRAE 1488, SFR Condorcet FR CNRS 3417, 51100 Reims, France; (Z.A.); (Q.E.); (L.S.); (C.J.); (N.V.-G.)
| | - Lisa Sanchez
- Université de Reims Champagne-Ardenne, RIBP EA4707 USC INRAE 1488, SFR Condorcet FR CNRS 3417, 51100 Reims, France; (Z.A.); (Q.E.); (L.S.); (C.J.); (N.V.-G.)
| | - Cédric Jacquard
- Université de Reims Champagne-Ardenne, RIBP EA4707 USC INRAE 1488, SFR Condorcet FR CNRS 3417, 51100 Reims, France; (Z.A.); (Q.E.); (L.S.); (C.J.); (N.V.-G.)
| | - Majida Hafidi
- Laboratoire de Biotechnologie Végétale et Valorisation des Bio-Ressources, Faculté des Sciences, Université Moulay Ismail, Meknès B.P. 11201, Morocco;
| | - Nathalie Vaillant-Gaveau
- Université de Reims Champagne-Ardenne, RIBP EA4707 USC INRAE 1488, SFR Condorcet FR CNRS 3417, 51100 Reims, France; (Z.A.); (Q.E.); (L.S.); (C.J.); (N.V.-G.)
| | - Essaid Ait Barka
- Université de Reims Champagne-Ardenne, RIBP EA4707 USC INRAE 1488, SFR Condorcet FR CNRS 3417, 51100 Reims, France; (Z.A.); (Q.E.); (L.S.); (C.J.); (N.V.-G.)
- Correspondence: ; Tel.: +33-326913221
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Matrose NA, Obikeze K, Belay ZA, Caleb OJ. Plant extracts and other natural compounds as alternatives for post-harvest management of fruit fungal pathogens: A review. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2020.100840] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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18
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Wu L, Li Z, Zhao F, Zhao B, Phillip FO, Feng J, Liu H, Yu K. Increased Organic Fertilizer and Reduced Chemical Fertilizer Increased Fungal Diversity and the Abundance of Beneficial Fungi on the Grape Berry Surface in Arid Areas. Front Microbiol 2021; 12:628503. [PMID: 34025598 PMCID: PMC8139630 DOI: 10.3389/fmicb.2021.628503] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 04/12/2021] [Indexed: 01/23/2023] Open
Abstract
Fertilizer practices can significantly impact the fruit quality and microbial diversity of the orchards. The fungi on the surface of fruits are essential for fruit storability and safety. However, it is not clear whether fertilization affects the fungal diversity and community structure on the surface of grape berries. Here, grape quality and the fungal diversity on the surface of grapes harvested from three fertilizer treatments were analyzed shortly after grape picking (T0) and following 8 days of storage (T1). The study involved three treatments: (1) common chemical fertilizer for 2 years (CH); (2) increased organic fertilizer and reduced chemical fertilizer for 1 year (A.O); and (3) increased organic fertilizer and reduced chemical fertilizer for 2 years (B.O). The application of increased organic fertilizer and reduced chemical fertilizer increased the soluble solids content (SSC) of the grape berries and decreased the pH of the grape juice. A total of 827,947 high-quality fungal sequences were recovered and assigned to 527 operational taxonomic units. Members of the Ascomycota phylum were dominant in all samples and accounted for 94.41% of the total number of detected sequences, followed by the Basidiomycota (5.05%), and unidentified fungi (0.54%). Alpha and beta diversity analyses revealed significantly different fungal populations in the three fertilizer treatments over the two time periods. The fungal diversity and richness on the grape berry surface in the B.O and A.O treatments were higher than those in the CH treatment. Among the detected fungi, the B.O treatments were mainly Pichia, Aureobasidium, and Candida genera, while the CH treatments were Botrytis, Aspergillus, and Penicillium. Moreover, significant differences were revealed between the two assessment times (T0 and T1). The samples from the T0 timepoint had higher fungal richness and diversity than the samples from T1 timepoint. Increasing organic fertilizer usage in grape management could improve grape quality and went on to increase the fungal diversity, as well as the relative abundance (RA) of beneficial fungi on grape berry surfaces. The correlation analysis suggested that the pH of the grape juice was significantly negatively correlated with fungal diversity parameters.
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Affiliation(s)
- Linnan Wu
- Department of Horticulture, College of Agriculture, The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germoplasm Resources of the Xinjiang Production and Construction Crops, Shihezi University, Shihezi, China
| | - Zhiqiang Li
- Shihezi Academy of Agricultural Sciences, Shihezi, China
| | - Fengyun Zhao
- Department of Horticulture, College of Agriculture, The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germoplasm Resources of the Xinjiang Production and Construction Crops, Shihezi University, Shihezi, China
| | - Benzhou Zhao
- Department of Horticulture, College of Agriculture, The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germoplasm Resources of the Xinjiang Production and Construction Crops, Shihezi University, Shihezi, China
| | - Fesobi Olumide Phillip
- Department of Horticulture, College of Agriculture, The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germoplasm Resources of the Xinjiang Production and Construction Crops, Shihezi University, Shihezi, China
| | - Jianrong Feng
- Department of Horticulture, College of Agriculture, The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germoplasm Resources of the Xinjiang Production and Construction Crops, Shihezi University, Shihezi, China
| | - Huaifeng Liu
- Department of Horticulture, College of Agriculture, The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germoplasm Resources of the Xinjiang Production and Construction Crops, Shihezi University, Shihezi, China
| | - Kun Yu
- Department of Horticulture, College of Agriculture, The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germoplasm Resources of the Xinjiang Production and Construction Crops, Shihezi University, Shihezi, China
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19
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Zhang H, Ahima J, Yang Q, Zhao L, Zhang X, Zheng X. A review on citrinin: Its occurrence, risk implications, analytical techniques, biosynthesis, physiochemical properties and control. Food Res Int 2021; 141:110075. [DOI: 10.1016/j.foodres.2020.110075] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 12/20/2020] [Accepted: 12/22/2020] [Indexed: 11/16/2022]
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20
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Pereyra MM, Díaz MA, Soliz-Santander FF, Poehlein A, Meinhardt F, Daniel R, Dib JR. Screening Methods for Isolation of Biocontrol Epiphytic Yeasts against Penicillium digitatum in Lemons. J Fungi (Basel) 2021; 7:jof7030166. [PMID: 33669096 PMCID: PMC7996618 DOI: 10.3390/jof7030166] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/20/2021] [Accepted: 02/22/2021] [Indexed: 12/02/2022] Open
Abstract
Worldwide, the green rot caused by Penicillium digitatum is one of the most aggressive postharvest diseases of lemons. Searching for sustainable alternatives to chemical fungicides, epiphytic yeasts as potential biocontrol agents were isolated from citrus fruits using a tailor-made selective medium. For disclosing their antagonistic potential against P. digitatum, obtained isolates were subjected to direct screening methods, both in vitro and in vivo. In the course of the primary in vitro screening that comprised dual culture assays, 43 yeast strains displaying antagonistic activities against the pathogen were selected. Subsequently, such strains were subjected to an in vivo screening that consisted of a microscale test, allowing the selection of six yeast strains for further analysis. In the final screening using macroscale in vivo tests, three strains (AcL2, AgL21, and AgL2) displaying the highest efficiencies to control P. digitatum were identified. The protection efficiencies in lemons were 80 (AcL2), 76.7 (AgL21), and 75% (AgL2). Based on sequence analysis of the PCR amplified D1/D2 domains of the 26S rRNA genes, they were identified as representatives of the species Clavispora lusitaniae. Interestingly, the strains exhibited a broad action spectrum among citrus fruits as they were also able to combat the green mold disease in grapefruit and two orange varieties. The direct screening methods applied in this study favored the recovery of efficient candidates for application as biological control agents to combat fungal infestations of citrus fruits.
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Affiliation(s)
- Martina María Pereyra
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Belgrano y Pje. Caseros, 4000 Tucumán, Argentina; (M.M.P.); (M.A.D.); (F.F.S.-S.)
| | - Mariana Andrea Díaz
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Belgrano y Pje. Caseros, 4000 Tucumán, Argentina; (M.M.P.); (M.A.D.); (F.F.S.-S.)
| | - Fabricio Fabián Soliz-Santander
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Belgrano y Pje. Caseros, 4000 Tucumán, Argentina; (M.M.P.); (M.A.D.); (F.F.S.-S.)
| | - Anja Poehlein
- Genomic and Applied Microbiology & Göttingen Genomics Laboratory, Institute of Microbiology and Genetics, Georg-August University of Göttingen, 37077 Göttingen, Germany;
| | - Friedhelm Meinhardt
- Institut für Molekulare Mikrobiologie und Biotechnologie (IMMB), Westfälische Wilhelms Universität Münster, 48149 Münster, Germany;
| | - Rolf Daniel
- Genomic and Applied Microbiology & Göttingen Genomics Laboratory, Institute of Microbiology and Genetics, Georg-August University of Göttingen, 37077 Göttingen, Germany;
- Correspondence: (R.D.); (J.R.D.); Tel.: +49-(0)551-3933827 (R.D.); +54-(0)381-4344888 (J.R.D.)
| | - Julián Rafael Dib
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Belgrano y Pje. Caseros, 4000 Tucumán, Argentina; (M.M.P.); (M.A.D.); (F.F.S.-S.)
- Facultad de Bioquímica, Instituto de Microbiología, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, 4000 Tucumán, Argentina
- Correspondence: (R.D.); (J.R.D.); Tel.: +49-(0)551-3933827 (R.D.); +54-(0)381-4344888 (J.R.D.)
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21
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Fungal Infection Induces Anthocyanin Biosynthesis and Changes in DNA Methylation Configuration of Blood Orange [ Citrus sinensis L. (Osbeck)]. PLANTS 2021; 10:plants10020244. [PMID: 33513740 PMCID: PMC7910907 DOI: 10.3390/plants10020244] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/19/2021] [Accepted: 01/25/2021] [Indexed: 11/17/2022]
Abstract
The biosynthesis of sweet orange anthocyanins is triggered by several environmental factors such as low temperature. Much less is known about the effect of biotic stress on anthocyanin production in sweet orange, although in other species anthocyanins are often indicated as “defense molecules”. In this work, citrus fruits were inoculated with Penicillium digitatum, the causal agent of green mold, and the amount of anthocyanins and the expression of genes related to their biosynthesis was monitored by RT-real time PCR after 3 and 5 days from inoculation (DPI). Moreover, the status of cytosine methylation of DFR and RUBY promoter regions was investigated by McrBC digestion followed in real-time. Our results highlight that fungal infection induces anthocyanin production by activating the expression of several genes in the biosynthetic pathway. The induction of gene expression is accompanied by maintenance of high levels of methylation at the DFR and RUBY promoters in the inoculated fruits, thus suggesting that DNA methylation is not a repressive mark of anthocyanin related gene expression in sweet orange subjected to biotic stress. Finally, by measuring the expression levels of the Citrus DNA demethylase genes, we found that none of them is up-regulated in response to fungal infection, this result being in accordance with the observed maintenance of high-level DFR and Ruby promoter regions methylation.
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Bhatta UK. Alternative Management Approaches of Citrus Diseases Caused by Penicillium digitatum (Green Mold) and Penicillium italicum (Blue Mold). FRONTIERS IN PLANT SCIENCE 2021; 12:833328. [PMID: 35273621 PMCID: PMC8904086 DOI: 10.3389/fpls.2021.833328] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 12/31/2021] [Indexed: 05/09/2023]
Abstract
Green mold (Penicillium digitatum) and blue mold (Penicillium italicum) are among the most economically impactful post-harvest diseases of citrus fruit worldwide. Post-harvest citrus diseases are largely controlled with synthetic fungicides such as pyrimethanil, imazalil, fludioxonil, and thiabendazole. Due to their toxic effects, prolonged and excessive application of these fungicides is gradually restricted in favor of safe and more eco-friendly alternatives. This review comprehensively describes alternative methods for the control of P. digitatum and P. italicum: (a) antagonistic micro-organisms, (b) plant extracts and essential oils, (c) biofungicides, (d) chitosan and chitosan-based citrus coatings, (e) heat treatments, (f) ionizing and non-ionizing irradiations, (g) food additives, and (h) synthetic elicitors. Integrating multiple approaches such as the application of biocontrol agents with food additives or heat treatments have overcome some drawbacks to single treatments. In addition, integrating treatment approaches could produce an additive or synergistic effect on controlling both molds for a satisfactory level of disease reduction in post-harvest citrus. Further research is warranted on plant resistance and fruit-pathogen interactions to develop safer strategies for the sustainable control of P. digitatum and P. italicum in citrus.
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Kanashiro AM, Akiyama DY, Kupper KC, Fill TP. Penicillium italicum: An Underexplored Postharvest Pathogen. Front Microbiol 2020; 11:606852. [PMID: 33343551 PMCID: PMC7746842 DOI: 10.3389/fmicb.2020.606852] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 11/06/2020] [Indexed: 11/13/2022] Open
Abstract
In the agricultural sector, citrus is one of the most important fruit genus in the world. In this scenario, Brazil is the largest producer of oranges; 34% of the global production, and exporter of concentrated orange juice; 76% of the juice consumed in the planet, summing up US$ 6.5 billion to Brazilian GDP. However, the orange production has been considerable decreasing due to unfavorable weather conditions in recent years and the increasing number of pathogen infections. One of the main citrus post-harvest phytopathogen is Penicillium italicum, responsible for the blue mold disease, which is currently controlled by pesticides, such as Imazalil, Pyrimethanil, Fludioxonil, and Tiabendazole, which are toxic chemicals harmful to the environment and also to human health. In addition, P. italicum has developed considerable resistance to these chemicals as a result of widespread applications. To address this growing problem, the search for new control methods of citrus post-harvest phytopathogens is being extensively explored, resulting in promising new approaches such as biocontrol methods as “killer” yeasts, application of essential oils, and antimicrobial volatile substances. The alternative methodologies to control P. italicum are reviewed here, as well as the fungal virulence factors and infection strategies. Therefore, this review will focus on a general overview of recent research carried out regarding the phytopathological interaction of P. italicum and its citrus host.
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Affiliation(s)
| | | | - Katia Cristina Kupper
- Advanced Citrus Research Center, Sylvio Moreira/Campinas Agronomic Institute, São Paulo, Brazil
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Combined application of antagonistic Wickerhamomyces anomalus BS91 strain and Cynara cardunculus L. leaf extracts for the control of postharvest decay of citrus fruit. Food Microbiol 2020; 92:103583. [DOI: 10.1016/j.fm.2020.103583] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/09/2020] [Accepted: 06/23/2020] [Indexed: 02/07/2023]
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Díaz MA, Pereyra MM, Picón-Montenegro E, Meinhardt F, Dib JR. Killer Yeasts for the Biological Control of Postharvest Fungal Crop Diseases. Microorganisms 2020; 8:microorganisms8111680. [PMID: 33138117 PMCID: PMC7693540 DOI: 10.3390/microorganisms8111680] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 10/25/2020] [Accepted: 10/27/2020] [Indexed: 01/14/2023] Open
Abstract
Every year and all over the world the fungal decay of fresh fruit and vegetables frequently generates substantial economic losses. Synthetic fungicides, traditionally used to efficiently combat the putrefactive agents, emerged, however, as the cause of environmental and human health issues. Given the need to seek for alternatives, several biological approaches were followed, among which those with killer yeasts stand out. Here, after the elaboration of the complex of problems, we explain the hitherto known yeast killer mechanisms and present the implementation of yeasts displaying such phenotype in biocontrol strategies for pre- or postharvest treatments to be aimed at combating postharvest fungal decay in numerous agricultural products.
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Affiliation(s)
- Mariana Andrea Díaz
- Planta Piloto de Procesos Industriales Microbiológicos–CONICET, Av. Belgrano y Pje. Caseros, Tucumán 4000, Argentina; (M.A.D.); (M.M.P.); (E.P.-M.)
| | - Martina María Pereyra
- Planta Piloto de Procesos Industriales Microbiológicos–CONICET, Av. Belgrano y Pje. Caseros, Tucumán 4000, Argentina; (M.A.D.); (M.M.P.); (E.P.-M.)
| | - Ernesto Picón-Montenegro
- Planta Piloto de Procesos Industriales Microbiológicos–CONICET, Av. Belgrano y Pje. Caseros, Tucumán 4000, Argentina; (M.A.D.); (M.M.P.); (E.P.-M.)
| | - Friedhelm Meinhardt
- Institut für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms Universität Münster, Corrensstr. 3, 48149 Münster, Germany
- Correspondence: (F.M.); (J.R.D.); Tel.: +49-251-83-39819 (F.M.); +54-381-4344888 (J.R.D.)
| | - Julián Rafael Dib
- Planta Piloto de Procesos Industriales Microbiológicos–CONICET, Av. Belgrano y Pje. Caseros, Tucumán 4000, Argentina; (M.A.D.); (M.M.P.); (E.P.-M.)
- Instituto de Microbiología, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, Tucumán 4000, Argentina
- Correspondence: (F.M.); (J.R.D.); Tel.: +49-251-83-39819 (F.M.); +54-381-4344888 (J.R.D.)
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26
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Martínez-Blay V, Taberner V, Pérez-Gago MB, Palou L. Control of major citrus postharvest diseases by sulfur-containing food additives. Int J Food Microbiol 2020; 330:108713. [DOI: 10.1016/j.ijfoodmicro.2020.108713] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 05/22/2020] [Accepted: 05/29/2020] [Indexed: 10/24/2022]
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27
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Zhang X, Li B, Zhang Z, Chen Y, Tian S. Antagonistic Yeasts: A Promising Alternative to Chemical Fungicides for Controlling Postharvest Decay of Fruit. J Fungi (Basel) 2020; 6:E158. [PMID: 32878102 PMCID: PMC7558569 DOI: 10.3390/jof6030158] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 08/23/2020] [Accepted: 08/28/2020] [Indexed: 01/10/2023] Open
Abstract
Fruit plays an important role in human diet. Whereas, fungal pathogens cause huge losses of fruit during storage and transportation, abuse of chemical fungicides leads to serious environmental pollution and endangers human health. Antagonistic yeasts (also known as biocontrol yeasts) are promising substitutes for chemical fungicides in the control of postharvest decay owing to their widespread distribution, antagonistic ability, environmentally friendly nature, and safety for humans. Over the past few decades, the biocontrol mechanisms of antagonistic yeasts have been extensively studied, such as nutrition and space competition, mycoparasitism, and induction of host resistance. Moreover, combination of antagonistic yeasts with other agents or treatments were developed to improve the biocontrol efficacy. Several antagonistic yeasts are used commercially. In this review, the application of antagonistic yeasts for postharvest decay control is summarized, including the antagonistic yeast species and sources, antagonistic mechanisms, commercial applications, and efficacy improvement. Issues requiring further study are also discussed.
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Affiliation(s)
- Xiaokang Zhang
- Key Laboratory of Plant Resources, Institute of Botany, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China; (X.Z.); (B.L.); (Z.Z.); (Y.C.)
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Boqiang Li
- Key Laboratory of Plant Resources, Institute of Botany, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China; (X.Z.); (B.L.); (Z.Z.); (Y.C.)
| | - Zhanquan Zhang
- Key Laboratory of Plant Resources, Institute of Botany, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China; (X.Z.); (B.L.); (Z.Z.); (Y.C.)
| | - Yong Chen
- Key Laboratory of Plant Resources, Institute of Botany, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China; (X.Z.); (B.L.); (Z.Z.); (Y.C.)
| | - Shiping Tian
- Key Laboratory of Plant Resources, Institute of Botany, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China; (X.Z.); (B.L.); (Z.Z.); (Y.C.)
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
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Chen O, Yi L, Deng L, Ruan C, Zeng K. Screening antagonistic yeasts against citrus green mold and the possible biocontrol mechanisms of Pichia galeiformis (BAF03). JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:3812-3821. [PMID: 32248529 DOI: 10.1002/jsfa.10407] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/27/2020] [Accepted: 04/05/2020] [Indexed: 05/24/2023]
Abstract
BACKGROUND Penicillium digitatum is one of the most important pathogens causing citrus green mold, leading to significant economic losses. Traditionally, synthetic fungicides are used to control diseases. However, the side effects of fungicides should not be ignored. Thus, antagonistic yeasts were proposed to be safe and effective alternatives for managing diseases. Orchards are excellent sources of naturally occurring antagonists against pathogens. Therefore, in the present study, antagonistic yeasts obtained from orchards were screened, and the possible biocontrol mechanisms of the most promising yeast were investigated. RESULTS Seventy-eight isolates of yeasts (15 species of 10 genera) were obtained from citrus orchards. In in vitro assays, 16 strains showed antifungal activity against Pichia digitatum and 15 strains showed biocontrol potential against green mold on Olinda oranges. Pichia galeiformis (BAF03) exhibited the best antagonistic activity against P. digitatum during 6 days storage at 25 °C and a good antagonistic activity during 29 days at 4 °C. Pichia galeiformis (BAF03) could colonize and amplify quickly in wounded citrus. Scanning electron microscopy results showed that the citrus wound was colonised by the yeast. A total of eight volatile organic compounds (VOCs) were identified by gas chromatography-mass spectrometry The VOCs produced by P. galeiformis (BAF03) efficiently inhibited P. digitatum. CONCLUSION Pichia galeiformis (BAF03) isolated from a citrus orchard showed potential to control postharvest green mold of citrus. The possible mechanisms of action likely include competition for space and nutrients as well as production of VOCs.
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Affiliation(s)
- Ou Chen
- College of Food Science, Southwest University, Chongqing, China
| | - Lanhua Yi
- College of Food Science, Southwest University, Chongqing, China
- Food Storage and Logistics Research Center, Southwest University, Chongqing, China
| | - Lili Deng
- College of Food Science, Southwest University, Chongqing, China
- Food Storage and Logistics Research Center, Southwest University, Chongqing, China
| | - Changqing Ruan
- College of Food Science, Southwest University, Chongqing, China
- Food Storage and Logistics Research Center, Southwest University, Chongqing, China
| | - Kaifang Zeng
- College of Food Science, Southwest University, Chongqing, China
- Food Storage and Logistics Research Center, Southwest University, Chongqing, China
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Zhang H, Godana EA, Sui Y, Yang Q, Zhang X, Zhao L. Biological control as an alternative to synthetic fungicides for the management of grey and blue mould diseases of table grapes: a review. Crit Rev Microbiol 2020; 46:450-462. [DOI: 10.1080/1040841x.2020.1794793] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Hongyin Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
| | - Esa Abiso Godana
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
| | - Yuan Sui
- College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing Key Laboratory of Economic Plant Biotechnology, Chongqing University of Arts and Sciences, Chongqing, PR China
| | - Qiya Yang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
| | - Xiaoyun Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
| | - Lina Zhao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
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Rodriguez Assaf L, Pedrozo L, Nally M, Pesce V, Toro M, Castellanos de Figueroa L, Vazquez F. Use of yeasts from different environments for the control of Penicillium expansum on table grapes at storage temperature. Int J Food Microbiol 2020; 320:108520. [DOI: 10.1016/j.ijfoodmicro.2020.108520] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 01/06/2020] [Accepted: 01/10/2020] [Indexed: 10/25/2022]
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Into P, Khunnamwong P, Jindamoragot S, Am-in S, Intanoo W, Limtong S. Yeast Associated with Rice Phylloplane and Their Contribution to Control of Rice Sheath Blight Disease. Microorganisms 2020; 8:E362. [PMID: 32138375 PMCID: PMC7142645 DOI: 10.3390/microorganisms8030362] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 02/29/2020] [Accepted: 03/02/2020] [Indexed: 02/06/2023] Open
Abstract
The phylloplane is an important habitat for yeasts and these yeasts may have antagonistic activities against pathogens and could be used as biocontrol agents. To investigate rice phylloplane yeasts, 282 strains were isolated from 89 rice leaf samples and identified as 15 known yeast species in the phylum Ascomycota and 35 known and two potential new species in the phylum Basidiomycota. The majority of rice phylloplane yeasts belonged to the phylum Basidiomycota. The evaluation of antagonistic activities of 83 yeast strains against rice pathogenic fungi Pyricularia oryzae, Rhizoctonia solani, Fusarium moniliforme, Helminthosporium oryzae and Curvularia lunata revealed that 14 strains inhibited these pathogens. Among the antagonistic strains, Torulaspora indica DMKU-RP31, T. indica DMKU-RP35 and Wickerhamomyces anomalus DMKU-RP25 inhibited all rice pathogens tested, and the production of volatile organic compounds, fungal cell wall degrading enzymes and biofilm were the possible antagonistic mechanisms against all rice pathogens tested in vitro. These yeast strains were evaluated for controlling rice sheath blight caused by R. solani in rice plants in the greenhouse and were found to suppress the disease by 60.0-70.3%, whereas 3% validamycin suppressed by 83.8%. Therefore, they have potential for being developed to be used as biocontrol agents for rice sheath blight.
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Affiliation(s)
- Parichat Into
- Department of Microbiology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand; (P.I.); (P.K.)
| | - Pannida Khunnamwong
- Department of Microbiology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand; (P.I.); (P.K.)
| | - Sasitorn Jindamoragot
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology, Development Agency (NSTDA), Pathum Thani 12120, Thailand; (S.J.); (S.A.-i.)
| | - Somjit Am-in
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology, Development Agency (NSTDA), Pathum Thani 12120, Thailand; (S.J.); (S.A.-i.)
| | - Wanwilai Intanoo
- Department of Plant Pathology, Faculty of Agriculture, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand;
| | - Savitree Limtong
- Department of Microbiology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand; (P.I.); (P.K.)
- Academy of Science, The Royal Society of Thailand, Bangkok 10300, Thailand
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Dukare AS, Singh RK, Jangra RK, Bhushan B. Non-Fungicides-Based Promising Technologies for Managing Post-Production Penicillium Induced Spoilage in Horticultural Commodities: A Comprehensive Review. FOOD REVIEWS INTERNATIONAL 2020. [DOI: 10.1080/87559129.2020.1727497] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ajinath Shridhar Dukare
- Division of Horticultural Crop Processing, ICAR- Central Institute of Post Harvest Engineering and Technology (CIPHET), Abohar/Ludhiana, India
| | - Rajesh Kumar Singh
- ICAR- Central Institute of Post Harvest Engineering and Technology (CIPHET), Abohar/Ludhiana, India
| | - Ramesh Kumar Jangra
- Division of Horticultural Crop Processing, ICAR- Central Institute of Post Harvest Engineering and Technology (CIPHET), Abohar/Ludhiana, India
| | - Bharat Bhushan
- Plant Biochemistry, ICAR-Indian Institute of Maize Research, Ludhiana, India
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Wang Z, Mei X, Du M, Chen K, Jiang M, Wang K, Zalán Z, Kan J. Potential modes of action of Pseudomonas fluorescens ZX during biocontrol of blue mold decay on postharvest citrus. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:744-754. [PMID: 31637724 DOI: 10.1002/jsfa.10079] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 10/01/2019] [Accepted: 10/06/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND The application of chemical fungicides is currently the main method for the control of postharvest decay of fruits and vegetables. However, public concern has been growing towards the effect of fungicides on food safety, human health and environmental pollution. Thus, interest in microbial biocontrol agent development has grown, such agents being considered both safe and environmentally friendly. Pseudomonas fluorescens is widely distributed in nature, and one of the most valuable biocontrol and plant growth-promoting rhizobacteria. In this study, the efficacy and the potential associated modes of action of P. fluorescens ZX against Penicillium italicum on oranges (Citrus sinensis Osbeck) were investigated. RESULTS The application of P. fluorescens ZX significantly reduced blue mold lesion size and incidence in comparison to the control, where P. fluorescens ZX was effective when applied preventatively but not curatively. In dual cultures, treatment with cell-free autoclaved cultures or culture filtrate had a limited capacity to suppress P. italicum, while P. italicum was inhibited by bacterial fluid and bacterial suspension with living cells in vitro. The P. fluorescens ZX isolate displayed protease, but not chitinase, glucanase or cellulose, activity, and produced siderophores and volatile organic compounds with antifungal abilities. Competition tests showed P. fluorescens ZX could use fructose, sucrose, aspartic acid, threonine, serine, glycine, valine, lysine and proline better than P. italicum. Furthermore, an effective biofilm that peaked after a 24-hour incubation at 30 °C was formed by the P. fluorescens ZX isolate. Light microscopy and scanning electron microscopy observations indicate the P. fluorescens ZX isolate could not undergo direct parasitism or hyperparasitism. CONCLUSIONS Competition for nutrients and niches, biofilm formation, inhibition of spore germination and mycelial growth, and production of inhibitory metabolites may play important roles in P. fluorescens ZX antagonism of P. italicum. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Zhirong Wang
- College of Food Science, Southwest University, Chongqing, PR China
- Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing, PR China
| | - Xiaofei Mei
- College of Food Science, Southwest University, Chongqing, PR China
- Laboratory of Quality & Safety Risk Assessment for Agro-products on Storage and Preservation (Chongqing), Ministry of Agriculture, Chongqing, PR China
| | - Muying Du
- College of Food Science, Southwest University, Chongqing, PR China
- Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing, PR China
- Laboratory of Quality & Safety Risk Assessment for Agro-products on Storage and Preservation (Chongqing), Ministry of Agriculture, Chongqing, PR China
| | - Kewei Chen
- College of Food Science, Southwest University, Chongqing, PR China
- Laboratory of Quality & Safety Risk Assessment for Agro-products on Storage and Preservation (Chongqing), Ministry of Agriculture, Chongqing, PR China
| | - Mengyao Jiang
- College of Food Science, Southwest University, Chongqing, PR China
- Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing, PR China
| | - Kaituo Wang
- Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing, PR China
- College of Life Science and Engineering, Chongqing Three Gorges University, Chongqing, PR China
| | - Zsolt Zalán
- Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing, PR China
- Food Science Research Institute of National Agricultural Research and Innovation Center, Budapest, Hungary
| | - Jianquan Kan
- College of Food Science, Southwest University, Chongqing, PR China
- Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing, PR China
- Laboratory of Quality & Safety Risk Assessment for Agro-products on Storage and Preservation (Chongqing), Ministry of Agriculture, Chongqing, PR China
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Chen X, Wang Y, Gao Y, Gao T, Zhang D. Inhibitory Abilities of Bacillus Isolates and Their Culture Filtrates against the Gray Mold Caused by Botrytis cinerea on Postharvest Fruit. THE PLANT PATHOLOGY JOURNAL 2019; 35:425-436. [PMID: 31632218 PMCID: PMC6788410 DOI: 10.5423/ppj.oa.03.2019.0064] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 07/10/2019] [Accepted: 07/18/2019] [Indexed: 05/30/2023]
Abstract
Botrytis cinerea, a major phytopathogenic fungus, has been reported to infect more than 200 crop species worldwide, and it causes massive losses in yield. The aim of this study was to evaluate the inhibitory abilities and effects of Bacillus amyloliquefaciens RS-25, Bacillus licheniformis MG-4, Bacillus subtilis Z-14, and Bacillus subtilis Pnf-4 and their culture filtrates and extracts against the gray mold caused by B. cinerea on postharvest tomato, strawberry, and grapefruit. The results revealed that the cells of Z-14, culture filtrate of RS-25, and cells of Z-14 showed the strongest biocontrol activity against the gray mold on the strawberry, grape, and tomato fruit, respectively. All the strains produced volatile organic compounds (VOCs), and the VOCs of Pnf-4 displayed the highest inhibition values. Based on headspace solid-phase microextraction in combination with gas chromatography-mass spectrometry, esters accounted for the largest percentage of the VOCs produced by RS-25, MG-4, Z-14, and Pnf-4 (36.80%, 29.58%, 30.78%, and 36.26%, respectively). All the strains showed potent cellulase and protease activities, but no chitinase activity. RS-25, Z-14, and MG-4, but not Pnf-4, grew on chrome azurol S agar, and an orange halo was formed around the colonies. All the strains showed biofilm formation, fruit colonization, and lipopeptide production, which may be the main modes of action of the antagonists against B. cinerea on the fruit. This study provides the basis for developing natural biocontrol agents against the gray mold caused by B. cinerea on postharvest fruit.
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Affiliation(s)
| | | | | | | | - Dongdong Zhang
- Corresponding author.: Phone) +86-3127528273, FAX) +86-3127528273, E-mail)
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35
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Moraes Bazioli J, Belinato JR, Costa JH, Akiyama DY, Pontes JGDM, Kupper KC, Augusto F, de Carvalho JE, Fill TP. Biological Control of Citrus Postharvest Phytopathogens. Toxins (Basel) 2019; 11:toxins11080460. [PMID: 31390769 PMCID: PMC6723504 DOI: 10.3390/toxins11080460] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 07/24/2019] [Accepted: 07/25/2019] [Indexed: 01/09/2023] Open
Abstract
Citrus are vulnerable to the postharvest decay caused by Penicillium digitatum, Penicillium italicum, and Geotrichum citri-aurantii, which are responsible for the green mold, blue mold, and sour rot post-harvest disease, respectively. The widespread economic losses in citriculture caused by these phytopathogens are minimized with the use of synthetic fungicides such as imazalil, thiabendazole, pyrimethanil, and fludioxonil, which are mainly employed as control agents and may have harmful effects on human health and environment. To date, numerous non-chemical postharvest treatments have been investigated for the control of these pathogens. Several studies demonstrated that biological control using microbial antagonists and natural products can be effective in controlling postharvest diseases in citrus, as well as the most used commercial fungicides. Therefore, microbial agents represent a considerably safer and low toxicity alternative to synthetic fungicides. In the present review, these biological control strategies as alternative to the chemical fungicides are summarized here and new challenges regarding the development of shelf-stable formulated biocontrol products are also discussed.
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Affiliation(s)
- Jaqueline Moraes Bazioli
- Institute of Chemistry, Universidade Estadual de Campinas, CP 6154, 13083-970 Campinas, SP, Brazil
- Faculty of Pharmaceutical Sciences, Universidade Estadual de Campinas, 13083-859 Campinas, SP, Brazil
| | - João Raul Belinato
- Institute of Chemistry, Universidade Estadual de Campinas, CP 6154, 13083-970 Campinas, SP, Brazil
| | - Jonas Henrique Costa
- Institute of Chemistry, Universidade Estadual de Campinas, CP 6154, 13083-970 Campinas, SP, Brazil
| | - Daniel Yuri Akiyama
- Institute of Chemistry, Universidade Estadual de Campinas, CP 6154, 13083-970 Campinas, SP, Brazil
| | | | | | - Fabio Augusto
- Institute of Chemistry, Universidade Estadual de Campinas, CP 6154, 13083-970 Campinas, SP, Brazil
| | - João Ernesto de Carvalho
- Faculty of Pharmaceutical Sciences, Universidade Estadual de Campinas, 13083-859 Campinas, SP, Brazil
| | - Taícia Pacheco Fill
- Institute of Chemistry, Universidade Estadual de Campinas, CP 6154, 13083-970 Campinas, SP, Brazil.
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Ferraz P, Cássio F, Lucas C. Potential of Yeasts as Biocontrol Agents of the Phytopathogen Causing Cacao Witches' Broom Disease: Is Microbial Warfare a Solution? Front Microbiol 2019; 10:1766. [PMID: 31417539 PMCID: PMC6685038 DOI: 10.3389/fmicb.2019.01766] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 07/17/2019] [Indexed: 11/13/2022] Open
Abstract
Plant diseases caused by fungal pathogens are responsible for major crop losses worldwide, with a significant socio-economic impact on the life of millions of people who depend on agriculture-exclusive economy. This is the case of the Witches’ Broom Disease (WBD) affecting cacao plant and fruit in South and Central America. The severity and extent of this disease is prospected to impact the growing global chocolate market in a few decades. WBD is caused by the basidiomycete fungus Moniliophthora perniciosa. The methods used to contain the fungus mainly rely on chemical fungicides, such as copper-based compounds or azoles. Not only are these highly ineffective, but also their utilization is increasingly restricted by the cacao industry, in part because it promotes fungal resistance, in part related to consumers’ health concerns and environmental awareness. Therefore, the disease is being currently tentatively controlled through phytosanitary pruning, although the full removal of infected plant material is impossible and the fungus maintains persistent inoculum in the soil, or using an endophytic fungal parasite of Moniliophthora perniciosa which production is not sustainable. The growth of Moniliophthora perniciosa was reported as being antagonized in vitro by some yeasts, which suggests that they could be used as biological control agents, suppressing the fungus multiplication and containing its spread. Concurrently, some yeast-based products are used in the protection of fruits from postharvest fungal spoilage, and the extension of diverse food products shelf-life. These successful applications suggest that yeasts can be regarded a serious alternative also in the pre-harvest management of WBD and other fungal plant diseases. Yeasts’ GRAS (Generally Recognized as Safe) nature adds to their appropriateness for field application, not raising major ecological concerns as do the present more aggressive approaches. Importantly, mitigating WBD, in a sustainable manner, would predictably have a high socioeconomic impact, contributing to diminish poverty in the cacao-producing rural communities severely affected by the disease. This review discusses the importance/advantages and the challenges that such a strategy would have for WBD containment, and presents the available information on the molecular and cellular mechanisms underlying fungi antagonism by yeasts.
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Affiliation(s)
- Pedro Ferraz
- Institute of Science and Innovation for Bio-Sustainability, University of Minho, Braga, Portugal.,Centre of Molecular and Environmental Biology, University of Minho, Braga, Portugal
| | - Fernanda Cássio
- Institute of Science and Innovation for Bio-Sustainability, University of Minho, Braga, Portugal.,Centre of Molecular and Environmental Biology, University of Minho, Braga, Portugal
| | - Cândida Lucas
- Institute of Science and Innovation for Bio-Sustainability, University of Minho, Braga, Portugal.,Centre of Molecular and Environmental Biology, University of Minho, Braga, Portugal
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Mannazzu I, Domizio P, Carboni G, Zara S, Zara G, Comitini F, Budroni M, Ciani M. Yeast killer toxins: from ecological significance to application. Crit Rev Biotechnol 2019; 39:603-617. [PMID: 31023102 DOI: 10.1080/07388551.2019.1601679] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Killer toxins are proteins that are often glycosylated and bind to specific receptors on the surface of their target microorganism, which is then killed through a target-specific mode of action. The killer phenotype is widespread among yeast and about 100 yeast killer species have been described to date. The spectrum of action of the killer toxins they produce targets spoilage and pathogenic microorganisms. Thus, they have potential as natural antimicrobials in food and for biological control of plant pathogens, as well as therapeutic agents against animal and human infections. In spite of this wide range of possible applications, their exploitation on the industrial level is still in its infancy. Here, we initially briefly report on the biodiversity of killer toxins and the ecological significance of their production. Their actual and possible applications in the agro-food industry are discussed, together with recent advances in their heterologous production and the manipulation for development of peptide-based therapeutic agents.
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Affiliation(s)
- Ilaria Mannazzu
- a Department of Agriculture , University of Sassari , Sassari , Italy
| | - Paola Domizio
- b Department of Agricultural , Food and Forestry Systems (GESAAF) , Firenze , Italy
| | - Gavino Carboni
- a Department of Agriculture , University of Sassari , Sassari , Italy
| | - Severino Zara
- a Department of Agriculture , University of Sassari , Sassari , Italy
| | - Giacomo Zara
- a Department of Agriculture , University of Sassari , Sassari , Italy
| | - Francesca Comitini
- c Department of Life and Environmental Sciences , Università Politecnica delle Marche , Ancona , Italy
| | - Marilena Budroni
- a Department of Agriculture , University of Sassari , Sassari , Italy
| | - Maurizio Ciani
- c Department of Life and Environmental Sciences , Università Politecnica delle Marche , Ancona , Italy
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38
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Czarnecka M, Żarowska B, Połomska X, Restuccia C, Cirvilleri G. Role of biocontrol yeasts Debaryomyces hansenii and Wickerhamomyces anomalus in plants' defence mechanisms against Monilinia fructicola in apple fruits. Food Microbiol 2019; 83:1-8. [PMID: 31202399 DOI: 10.1016/j.fm.2019.04.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 02/19/2019] [Accepted: 04/06/2019] [Indexed: 12/27/2022]
Abstract
The role of killer yeasts of the species Debaryomyces hansenii and Wickerhamomyces anomalus in biocontrol of Monilinia fructicola, and their involvement in plant defence mechanisms against brown rot in apple fruits, were investigated. D. hansenii KI2a and W. anomalus BS91 strains showed the highest in vitro biocontrol activity, inhibiting mycelium growth by 69.53% and 66.08% respectively, as compared to control fungal cultures. Brown rot on apple fruits was significantly reduced by BS91 and two strains of D. hansenii KI2a and AII4b by 92.46%, 85.10% and 70.02%, respectively, in comparison to infected fruits, which did not receive any pre-treatment. In enzymatic tests, the most significant changes in peroxidase (POD) and catalase (CAT) activities were observed in fruits inoculated either with BS91 followed by M. fructicola infection or with AII4b yeast strain alone, where POD activities were significantly higher by 67% and 54%, respectively, and CAT activities were significantly lower by 65% and 68%, respectively, than in untreated control fruits. These results confirmed the ability of killer yeasts to influence host-defence related enzyme activities in apple fruit tissue and may suggest that AII4b killer strain has a potential as biocontrol agent prior to infection by triggering immune response mechanisms in plant tissue, whereas BS91 strain is the most effective during pathogen infection and could be used as biocontrol agent in postharvest disease onset. Accordingly, the antagonistic strains of W. anomalus BS91 and D. hansenii KI2a and AII4b could be proposed as active ingredients for the development of biofungicide against M. fructicola.
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Affiliation(s)
- Monika Czarnecka
- Department of Biotechnology and Food Microbiology, Wrocław University of Environmental and Life Sciences, ul. Chełmońskiego 37/41, 51-630 Wrocław, Poland
| | - Barbara Żarowska
- Department of Biotechnology and Food Microbiology, Wrocław University of Environmental and Life Sciences, ul. Chełmońskiego 37/41, 51-630 Wrocław, Poland
| | - Xymena Połomska
- Department of Biotechnology and Food Microbiology, Wrocław University of Environmental and Life Sciences, ul. Chełmońskiego 37/41, 51-630 Wrocław, Poland
| | - Cristina Restuccia
- Department of Agriculture, Food and Environment (Di3A), University of Catania, via Santa Sofia 100, 95123 Catania, Italy.
| | - Gabriella Cirvilleri
- Department of Agriculture, Food and Environment (Di3A), University of Catania, via Santa Sofia 100, 95123 Catania, Italy
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Biocontrol of Penicillium digitatum on Postharvest Citrus Fruits by Pseudomonas fluorescens. J FOOD QUALITY 2018. [DOI: 10.1155/2018/2910481] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The effectiveness of the bacteria antagonist Pseudomonas fluorescens to control green mold caused by Penicillium digitatum on oranges (Citrus sinensis Osbeck, cv. Jincheng) and the possible modes of action were evaluated. Whether in vitro or in vivo, treatments with cell-free autoclaved cultures or culture filtrate had limited capacity to suppress P. digitatum, while P. digitatum was significantly inhibited by bacterial fluid (P. fluorescens in the nutrient broth liquid medium) and bacterial suspension (P. fluorescens in sterile distilled water) with living cells. There was a positive relationship between the concentration of P. fluorescens in bacterial suspension and its biological efficacy. In addition, P. fluorescens was effective when applied preventatively but not when applied curatively. In the inoculated wounds, the population of P. fluorescens was an approximately 28- and 34-fold increase after being incubated at 20°C for 8 d and at 4°C for 16 d, respectively, and P. digitatum could effectively stimulate the growth and reproduction of P. fluorescens. Moreover, P. fluorescens was able to inhibit spore germination and germ tube elongation of P. digitatum as well as induce resistance on citrus peel by increasing the chitinase (CHI) activity and advancing the activities peaks of β-1,3-glucanase (GLU), peroxidase (POD), and phenylalanine ammonia lyase (PAL). All of these results support the potential application of P. fluorescens against green mold on postharvest citrus.
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da Cunha T, Ferraz LP, Wehr PP, Kupper KC. Antifungal activity and action mechanisms of yeasts isolates from citrus against Penicillium italicum. Int J Food Microbiol 2018; 276:20-27. [DOI: 10.1016/j.ijfoodmicro.2018.03.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 03/08/2018] [Accepted: 03/23/2018] [Indexed: 11/27/2022]
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41
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Ibrahim HAK, El-Fiki IAI. Study on the effect of yeast in compost tea efficiency in controlling chocolate leaf spot disease in broad bean (Vicia faba). ACTA ACUST UNITED AC 2018. [DOI: 10.1007/s13165-018-0221-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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42
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Guimarães A, Abrunhosa L, Pastrana LM, Cerqueira MA. Edible Films and Coatings as Carriers of Living Microorganisms: A New Strategy Towards Biopreservation and Healthier Foods. Compr Rev Food Sci Food Saf 2018; 17:594-614. [PMID: 33350124 DOI: 10.1111/1541-4337.12345] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 02/07/2018] [Accepted: 02/16/2018] [Indexed: 01/23/2023]
Abstract
Edible films and coatings have been extensively studied in recent years due to their unique properties and advantages over more traditional conservation techniques. Edible films and coatings improve shelf life and food quality, by providing a protective barrier against physical and mechanical damage, and by creating a controlled atmosphere and acting as a semipermeable barrier for gases, vapor, and water. Edible films and coatings are produced using naturally derived materials, such as polysaccharides, proteins, and lipids, or a mixture of these materials. These films and coatings also offer the possibility of incorporating different functional ingredients such as nutraceuticals, antioxidants, antimicrobials, flavoring, and coloring agents. Films and coatings are also able to incorporate living microorganisms. In the last decade, several works reported the incorporation of bacteria to confer probiotic or antimicrobial properties to these films and coatings. The incorporation of probiotic bacteria in films and coatings allows them to reach the consumers' gut in adequate amounts to confer health benefits to the host, thus creating an added value to the food product. Also, other microorganisms, either bacteria or yeast, can be incorporated into edible films in a biocontrol approach to extend the shelf life of food products. The incorporation of yeasts in films and coatings has been suggested primarily for the control of the postharvest disease. This work provides a comprehensive review of the use of edible films and coatings for the incorporation of living microorganisms, aiming at the biopreservation and probiotic ability of food products.
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Affiliation(s)
- Ana Guimarães
- Centre of Biological Engineering, Univ. of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Luís Abrunhosa
- Centre of Biological Engineering, Univ. of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Lorenzo M Pastrana
- Intl. Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal
| | - Miguel A Cerqueira
- Intl. Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal
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43
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Kharchoufi S, Parafati L, Licciardello F, Muratore G, Hamdi M, Cirvilleri G, Restuccia C. Edible coatings incorporating pomegranate peel extract and biocontrol yeast to reduce Penicillium digitatum postharvest decay of oranges. Food Microbiol 2018; 74:107-112. [PMID: 29706324 DOI: 10.1016/j.fm.2018.03.011] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 03/19/2018] [Accepted: 03/20/2018] [Indexed: 01/09/2023]
Abstract
This study investigated the potential use of two edible coatings, chitosan (CH) and locust bean gum (LBG), which incorporated chemically characterized water pomegranate peel extract (WPPE) or methanol pomegranate peel extract (MPPE) and the biocontrol agent (BCA) Wickerhamomyces anomalus, to control the growth of Penicillium digitatum and to reduce the postharvest decay of oranges. CH and LBG including pomegranate peel extracts (PPEs) at different concentrations were tested in vitro against P. digitatum to determine their antifungal efficacy; at the same time, the tolerance of viable cells of W. anomalus to increasing concentrations of WPPE and MPPE extracts was assessed. The potential application of selected bioactive coatings was evaluated in vivo on oranges, which had been artificially inoculated with P. digitatum, causal agent of green mold decay. CH incorporating MPPE or WPPE at all concentrations was able to inhibit in vitro P. digitatum, while LBG was active only at the highest MPPE or WPPE concentrations. W. anomalus BS91 was slightly inhibited only by MPPE-modified coatings, while no inhibition was observed by WPPE, which was therefore selected for the in vivo trials on oranges artificially inoculated with P. digitatum. The experimental results proved that the addition of 0.361 g dry WPPE/mL, both to CH and LBG coatings, significantly reduced disease incidence (DI) by 49 and 28% respectively, with respect to the relative controls. Besides the combination CH or LBG + WPPE, the addition of W. anomalus cells to coatings strengthened the antifungal effect with respect to the relative controls, as demonstrated by the significant reduction of DI (up to 95 and 75% respectively). The findings of the study contribute to the valorization of a value-added industrial byproduct and provide a significant advancement in the development of new food protectant formulations, which benefit from the synergistic effect between biocontrol agents and natural bioactive compounds.
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Affiliation(s)
- Samira Kharchoufi
- Laboratory of Microbial Ecology and Technology, National Institute of Applied Sciences and Technology (INSAT), University of Carthage, Centre Urbain Nord, 2 Boulevard de la Terre, B.P. 676, 1080, Tunis, Tunisia
| | - Lucia Parafati
- Department of Agriculture, Food and Environment (Di3A), University of Catania, via S. Sofia 100, 95123, Catania, Italy
| | - Fabio Licciardello
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola 2, 42122, Reggio Emilia, Italy
| | - Giuseppe Muratore
- Department of Agriculture, Food and Environment (Di3A), University of Catania, via S. Sofia 100, 95123, Catania, Italy
| | - Mokthar Hamdi
- Laboratory of Microbial Ecology and Technology, National Institute of Applied Sciences and Technology (INSAT), University of Carthage, Centre Urbain Nord, 2 Boulevard de la Terre, B.P. 676, 1080, Tunis, Tunisia
| | - Gabriella Cirvilleri
- Department of Agriculture, Food and Environment (Di3A), University of Catania, via S. Sofia 100, 95123, Catania, Italy
| | - Cristina Restuccia
- Department of Agriculture, Food and Environment (Di3A), University of Catania, via S. Sofia 100, 95123, Catania, Italy.
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Dukare AS, Paul S, Nambi VE, Gupta RK, Singh R, Sharma K, Vishwakarma RK. Exploitation of microbial antagonists for the control of postharvest diseases of fruits: a review. Crit Rev Food Sci Nutr 2018; 59:1498-1513. [DOI: 10.1080/10408398.2017.1417235] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ajinath Shridhar Dukare
- ICAR - Central Institute of Post-Harvest Engineering & Technology, Ludhiana/Abohar, Punjab, India
| | - Sangeeta Paul
- ICAR - Indian Agricultural Research Institute, New Delhi, India
| | - V. Eyarkai Nambi
- ICAR - Central Institute of Post-Harvest Engineering & Technology, Ludhiana/Abohar, Punjab, India
| | - Ram Kishore Gupta
- ICAR - Central Institute of Post-Harvest Engineering & Technology, Ludhiana/Abohar, Punjab, India
| | - Rajbir Singh
- ICAR - Agricultural Technology Application Research Institutes, Ludhiana, Punjab, India
| | - Kalyani Sharma
- ICAR - Central Institute of Post-Harvest Engineering & Technology, Ludhiana/Abohar, Punjab, India
| | - Rajesh Kumar Vishwakarma
- ICAR - Central Institute of Post-Harvest Engineering & Technology, Ludhiana/Abohar, Punjab, India
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45
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Parafati L, Cirvilleri G, Restuccia C, Wisniewski M. Potential Role of Exoglucanase Genes (WaEXG1 and WaEXG2) in the Biocontrol Activity of Wickerhamomyces anomalus. MICROBIAL ECOLOGY 2017; 73:876-884. [PMID: 27816988 DOI: 10.1007/s00248-016-0887-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 10/24/2016] [Indexed: 06/06/2023]
Abstract
The use of yeasts, including Wickerhamomyces anomalus, as biocontrol agents of fungi responsible for postharvest diseases of fruits and vegetables has been investigated for the past two decades. Among a variety of mechanisms, the production of glucanases coded by the "killer genes" WaEXG1 and WaEXG2 have been reported to play a role in the ability of yeast to inhibit other fungi. The objective of the present study was to determine the expression of these genes by RT-qPCR, utilizing gene-specific primers, when W. anomalus was grown on grape berries and oranges that were either non-inoculated or inoculated with Botrytis cinerea or Penicillium digitatum, or in minimal media supplemented with cell walls of various plant pathogens and different amounts of glucose. Results indicated that WaEXG2 was more responsive than WaEXG1 to the nutritional environment (including the addition of glucose to cell wall-amended media) in vitro and appeared to play a greater role in the cellular metabolism of W. anomalus. WaEXG2 expression also appeared to be more responsive to the presence of cell walls of P. digitatum and B. cinerea than other fungal species, whereas the same level of induction was not seen in vivo when the yeast was grown in wounded/pathogen-inoculated fruits.
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Affiliation(s)
- Lucia Parafati
- Dipartimento di Agricoltura, Alimentazione e Ambiente (Di3A), University of Catania, Catania, Italy
| | - Gabriella Cirvilleri
- Dipartimento di Agricoltura, Alimentazione e Ambiente (Di3A), University of Catania, Catania, Italy
| | - Cristina Restuccia
- Dipartimento di Agricoltura, Alimentazione e Ambiente (Di3A), University of Catania, Catania, Italy.
| | - Michael Wisniewski
- United States Department of Agriculture, Agricultural Research Service (USDA-ARS), Kearneysville, WV, 25430, USA
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46
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Qin X, Xiao H, Cheng X, Zhou H, Si L. Hanseniaspora uvarum prolongs shelf life of strawberry via volatile production. Food Microbiol 2017; 63:205-212. [DOI: 10.1016/j.fm.2016.11.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 11/01/2016] [Accepted: 11/06/2016] [Indexed: 11/26/2022]
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47
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Parafati L, Vitale A, Restuccia C, Cirvilleri G. Performance evaluation of volatile organic compounds by antagonistic yeasts immobilized on hydrogel spheres against gray, green and blue postharvest decays. Food Microbiol 2016; 63:191-198. [PMID: 28040168 DOI: 10.1016/j.fm.2016.11.021] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 10/19/2016] [Accepted: 11/26/2016] [Indexed: 10/20/2022]
Abstract
Wickerhamomyces anomalus, Metschnikowia pulcherrima, Aureobasidium pullulans and Saccharomyces cerevisiae yeasts were tested for their ability to survive and synthesize antifungal volatile organic compounds (VOCs) both in vitro and in vivo conditions when immobilized on commercial hydrogel spheres. The results showed a good survival of all yeasts on hydrogel spheres up to 10 days of incubation. Moreover, VOCs produced in vitro by tested yeasts inhibited Botrytis cinerea, Penicillium digitatum and P. italicum radial growth and conidial germination, with the highest antagonistic activity reported for W. anomalus and A. pullulans strains. Experimental in vivo trials performed on strawberry and mandarin fruits proved the ability of VOCs to reduce significantly postharvest decays on artificially wounded tissues. Comprehensively, the best efficacy was detected for W. anomalus, which totally inhibited gray mold decay on strawberry fruits and significantly reduced green mold infections on mandarin fruits. On the other hand, blue mold decay on mandarin fruits was more effectively managed by A. pullulans VOCs. Accordingly, hydrogel spheres used as a support for VOC-generating yeasts could open a new way for the employment of this polymeric material as a bio-emitter in postharvest packaging.
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Affiliation(s)
- Lucia Parafati
- Dipartimento di Agricoltura, Alimentazione e Ambiente (Di3A), University of Catania, Via Santa Sofia 100, 95123 Catania, Italy
| | - Alessandro Vitale
- Dipartimento di Agricoltura, Alimentazione e Ambiente (Di3A), University of Catania, Via Santa Sofia 100, 95123 Catania, Italy
| | - Cristina Restuccia
- Dipartimento di Agricoltura, Alimentazione e Ambiente (Di3A), University of Catania, Via Santa Sofia 100, 95123 Catania, Italy.
| | - Gabriella Cirvilleri
- Dipartimento di Agricoltura, Alimentazione e Ambiente (Di3A), University of Catania, Via Santa Sofia 100, 95123 Catania, Italy
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48
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Panebianco S, Vitale A, Polizzi G, Restuccia C, Cirvilleri G. Control of Penicillium digitatum on ‘Tarocco’ orange by combined application of Pseudomonas syringae and resistance inducers. ACTA ACUST UNITED AC 2016. [DOI: 10.17660/actahortic.2016.1144.64] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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49
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Parafati L, Vitale A, Polizzi G, Restuccia C, Cirvilleri G. Understanding the mechanism of biological control of postharvest phytopathogenic moulds promoted by food isolated yeasts. ACTA ACUST UNITED AC 2016. [DOI: 10.17660/actahortic.2016.1144.13] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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50
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Perez MF, Contreras L, Garnica NM, Fernández-Zenoff MV, Farías ME, Sepulveda M, Ramallo J, Dib JR. Native Killer Yeasts as Biocontrol Agents of Postharvest Fungal Diseases in Lemons. PLoS One 2016; 11:e0165590. [PMID: 27792761 PMCID: PMC5085023 DOI: 10.1371/journal.pone.0165590] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 10/16/2016] [Indexed: 11/19/2022] Open
Abstract
Economic losses caused by postharvest diseases represent one of the main problems of the citrus industry worldwide. The major diseases affecting citrus are the "green mold" and "blue mold", caused by Penicillium digitatum and P. italicum, respectively. To control them, synthetic fungicides are the most commonly used method. However, often the emergence of resistant strains occurs and their use is becoming more restricted because of toxic effects and environmental pollution they generate, combined with trade barriers to international markets. The aim of this work was to isolate indigenous killer yeasts with antagonistic activity against fungal postharvest diseases in lemons, and to determine their control efficiency in in vitro and in vivo assays. Among 437 yeast isolates, 8.5% show to have a killer phenotype. According to molecular identification, based on the 26S rDNA D1/D2 domain sequences analysis, strains were identified belonging to the genera Saccharomyces, Wickerhamomyces, Kazachstania, Pichia, Candida and Clavispora. Killers were challenged with pathogenic molds and strains that caused the maximum in vitro inhibition of P. digitatum were selected for in vivo assays. Two strains of Pichia and one strain of Wickerhamomyces depicted a significant protection (p <0.05) from decay by P. digitatum in assays using wounded lemons. Thus, the native killer yeasts studied in this work showed to be an effective alternative for the biocontrol of postharvest fungal infections of lemons and could be promising agents for the development of commercial products for the biological control industry.
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Affiliation(s)
- María Florencia Perez
- Planta Piloto de Procesos Industriales Microbiológicos - Consejo Nacional de Investigaciones Científicas y Técnicas, Tucumán, Argentina
| | - Luciana Contreras
- Planta Piloto de Procesos Industriales Microbiológicos - Consejo Nacional de Investigaciones Científicas y Técnicas, Tucumán, Argentina
| | - Nydia Mercedes Garnica
- Planta Piloto de Procesos Industriales Microbiológicos - Consejo Nacional de Investigaciones Científicas y Técnicas, Tucumán, Argentina
| | - María Verónica Fernández-Zenoff
- Instituto de Microbiología, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán. Ayacucho 471 (4000), Tucumán, Argentina
| | - María Eugenia Farías
- Planta Piloto de Procesos Industriales Microbiológicos - Consejo Nacional de Investigaciones Científicas y Técnicas, Tucumán, Argentina
| | - Milena Sepulveda
- Laboratorio de Desarrollo e Investigación, SA San Miguel, Lavalle 4001, T4000BAB, San Miguel de Tucumán, Argentina
| | - Jacqueline Ramallo
- Laboratorio de Desarrollo e Investigación, SA San Miguel, Lavalle 4001, T4000BAB, San Miguel de Tucumán, Argentina
| | - Julián Rafael Dib
- Planta Piloto de Procesos Industriales Microbiológicos - Consejo Nacional de Investigaciones Científicas y Técnicas, Tucumán, Argentina
- Instituto de Microbiología, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán. Ayacucho 471 (4000), Tucumán, Argentina
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