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Dwivedi M, Singh P, Pandey AK. Botrytis fruit rot management: What have we achieved so far? Food Microbiol 2024; 122:104564. [PMID: 38839226 DOI: 10.1016/j.fm.2024.104564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 05/11/2024] [Accepted: 05/17/2024] [Indexed: 06/07/2024]
Abstract
Botrytis cinerea is a destructive necrotrophic phytopathogen causing overwhelming diseases in more than 1400 plant species, especially fruit crops, resulting in significant economic losses worldwide. The pathogen causes rotting of fruits at both pre-harvest and postharvest stages. Aside from causing gray mold of the mature fruits, the fungus infects leaves, flowers, and seeds, which makes it a notorious phytopathogen. Worldwide, in the majority of fruit crops, B. cinerea causes gray mold. In order to effectively control this pathogen, extensive research has been conducted due to its wide host range and the huge economic losses it causes. It is advantageous to explore detection and diagnosis techniques of B. cinerea to provide the fundamental basis for mitigation strategies. Botrytis cinerea has been identified and quantified in fruit/plant samples at pre- and post-infection levels using various detection techniques including DNA markers, volatile organic compounds, qPCR, chip-digital PCR, and PCR-based nucleic acid sensors. In addition, cultural, physical, chemical, biological, and botanical methods have all been used to combat Botrytis fruit rot. This review discusses research progress made on estimating economic losses, detection and diagnosis, as well as management strategies, including cultural, physical, chemical, and biological studies on B. cinerea along with knowledge gaps and potential areas for future research.
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Affiliation(s)
- Mansi Dwivedi
- Department of Botany, DDU Gorakhpur University, Gorakhpur, 273009, Uttar Pradesh, India
| | - Pooja Singh
- Department of Botany, DDU Gorakhpur University, Gorakhpur, 273009, Uttar Pradesh, India.
| | - Abhay K Pandey
- Department of Botany, DDU Gorakhpur University, Gorakhpur, 273009, Uttar Pradesh, India; Department of Mycology & Microbiology, Tea Research Association, North Bengal Regional R & D Center, Nagrakata, 735225, Jalpaiguri, West Bengal, India.
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Chen J, Zhang M, Yuan C, Zhang T, Wu Z, Li T, Chi YR. Design, Synthesis, and Antifungal Activity of Acrylamide Derivatives Containing Trifluoromethylpyridine and Piperazine. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:11360-11368. [PMID: 38720533 DOI: 10.1021/acs.jafc.3c09770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2024]
Abstract
In this study, a series of acrylamide derivatives containing trifluoromethylpyridine or piperazine fragments were rationally designed and synthesized. Subsequently, the in vitro antifungal activities of all of the synthesized compounds were evaluated. The findings revealed that compounds 6b, 6c, and 7e exhibited >80% antifungal activity against Phomopsis sp. (Ps) at the concentration of 50 μg/mL. Furthermore, the EC50 values for compounds 6b, 6c, and 7e against Ps were determined to be 4.49, 6.47, and 8.68 μg/mL, respectively, which were better than the positive control with azoxystrobin (24.83 μg/mL). At the concentration of 200 μg/mL, the protective activity of compound 6b against Ps reached 65%, which was comparable to that of azoxystrobin (60.9%). Comprehensive mechanistic studies, including morphological studies with fluorescence microscopy (FM), cytoplasmic leakage, and enzyme activity assays, indicated that compound 6b disrupts cell membrane integrity and induces the accumulation of defense enzyme activity, thereby inhibiting mycelial growth. Therefore, compound 6b serves as a valuable candidate for the development of novel fungicides for plant protection.
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Affiliation(s)
- Jinli Chen
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, Guizhou 550025, People's Republic of China
| | - Meng Zhang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, Guizhou 550025, People's Republic of China
| | - Chunmei Yuan
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, Guizhou 550025, People's Republic of China
| | - Tao Zhang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, Guizhou 550025, People's Republic of China
| | - Zhibing Wu
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, Guizhou 550025, People's Republic of China
| | - Tingting Li
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, Guizhou 550025, People's Republic of China
| | - Yonggui Robin Chi
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, Guizhou 550025, People's Republic of China
- School of Chemistry, Chemical Engineering, and Biotechnology, Nanyang Technological University, Singapore 637371, Singapore
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Di Francesco A, Jabeen F, Vall-llaura N, Moret E, Martini M, Torres R, Ermacora P, Teixidó N. Pseudomonas synxantha volatile organic compounds: efficacy against Cadophora luteo-olivacea and Botrytis cinerea of kiwifruit. FRONTIERS IN PLANT SCIENCE 2024; 15:1398014. [PMID: 38779078 PMCID: PMC11109433 DOI: 10.3389/fpls.2024.1398014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 04/17/2024] [Indexed: 05/25/2024]
Abstract
Volatile organic compounds (VOCs) are responsible for the antagonistic activity exerted by different biological control agents (BCAs). In this study, VOCs produced by Pseudomonas synxantha strain 117-2b were tested against two kiwifruit fungal postharvest pathogens: Cadophora luteo-olivacea and Botrytis cinerea, through in vitro and in vivo assays. In vitro results demonstrated that P. synxantha 117-2b VOCs inhibit mycelial growth of C. luteo-olivacea and B. cinerea by 56% and 42.8% after 14 and 5 days of exposition, respectively. In vivo assay demonstrated significant inhibitory effects. VOCs used as a biofumigant treatment reduced skin-pitting symptoms disease severity by 28.5% and gray mold incidence by 66.6%, with respect to the untreated control. BCA volatiles were analyzed by solid-phase microextraction coupled with gas chromatography-mass spectrometry (SPME-GC/MS), and among the detected compounds, 1-butanol, 3-methyl and 1-nonene resulted as the most produced. Their efficacy as pure synthetic compounds was assayed against mycelial growth of fungal pathogens by different concentrations (0.34, 0.56, and 1.12 µL mL-1 headspace). The effect of the application of VOCs as a biofumigant was also investigated as the expression level of seven defense-related genes of kiwifruit at different exposition times. The results indicated an enhancement of the expression of almost all the genes starting from 3 h of treatment. These results described P. synxantha VOCs characteristics and their potential as a promising method to adopt for protecting kiwifruit from postharvest diseases caused by C. luteo-olivacea and B. cinerea.
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Affiliation(s)
- Alessandra Di Francesco
- Department of Agriculture, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
| | - Farwa Jabeen
- Department of Agriculture, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
| | - Núria Vall-llaura
- Postharvest Programme, Institute of Agrifood Research and Technology (IRTA), Lleida, Spain
| | - Erica Moret
- Department of Agriculture, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
| | - Marta Martini
- Department of Agriculture, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
| | - Rosario Torres
- Postharvest Programme, Institute of Agrifood Research and Technology (IRTA), Lleida, Spain
| | - Paolo Ermacora
- Department of Agriculture, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
| | - Neus Teixidó
- Postharvest Programme, Institute of Agrifood Research and Technology (IRTA), Lleida, Spain
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Romero-Contreras YJ, Gonzalez-Serrano F, Formey D, Aragón W, Chacón FI, Torres M, Cevallos MÁ, Dib JR, Rebollar EA, Serrano M. Amphibian skin bacteria display antifungal activity and induce plant defense mechanisms against Botrytis cinerea. FRONTIERS IN PLANT SCIENCE 2024; 15:1392637. [PMID: 38654899 PMCID: PMC11035788 DOI: 10.3389/fpls.2024.1392637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 03/25/2024] [Indexed: 04/26/2024]
Abstract
Botrytis cinerea is the causal agent of gray mold, which affects a wide variety of plant species. Chemical agents have been used to prevent the disease caused by this pathogenic fungus. However, their toxicity and reduced efficacy have encouraged the development of new biological control alternatives. Recent studies have shown that bacteria isolated from amphibian skin display antifungal activity against plant pathogens. However, the mechanisms by which these bacteria act to reduce the effects of B. cinerea are still unclear. From a diverse collection of amphibian skin bacteria, three proved effective in inhibiting the development of B. cinerea under in vitro conditions. Additionally, the individual application of each bacterium on the model plant Arabidopsis thaliana, Solanum lycopersicum and post-harvest blueberries significantly reduced the disease caused by B. cinerea. To understand the effect of bacteria on the host plant, we analyzed the transcriptomic profile of A. thaliana in the presence of the bacterium C32I and the fungus B. cinerea, revealing transcriptional regulation of defense-related hormonal pathways. Our study shows that bacteria from the amphibian skin can counteract the activity of B. cinerea by regulating the plant transcriptional responses.
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Affiliation(s)
- Yordan J. Romero-Contreras
- Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
- Programa de Doctorado en Ciencias Biomédicas, Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| | - Francisco Gonzalez-Serrano
- Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
- Programa de Doctorado en Ciencias Biomédicas, Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| | - Damien Formey
- Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
| | - Wendy Aragón
- Instituto de Biociencias, Universidad Autónoma de Chiapas, Tapachula, Chiapas, Mexico
| | - Florencia Isabel Chacón
- Planta Piloto de Procesos Industriales Microbiológicos (PROIM) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Tucumán, Argentina
| | - Martha Torres
- Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
| | - Miguel Ángel Cevallos
- Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
| | - Julian Rafael Dib
- Planta Piloto de Procesos Industriales Microbiológicos (PROIM) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Tucumán, Argentina
- Instituto de Microbiología, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - Eria A. Rebollar
- Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
| | - Mario Serrano
- Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
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Lin M, Gao Z, Wang X, Huo H, Mao J, Gong X, Chen L, Ma S, Cao Y. Eco-friendly managements and molecular mechanisms for improving postharvest quality and extending shelf life of kiwifruit: A review. Int J Biol Macromol 2024; 257:128450. [PMID: 38035965 DOI: 10.1016/j.ijbiomac.2023.128450] [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: 08/17/2023] [Revised: 11/04/2023] [Accepted: 11/20/2023] [Indexed: 12/02/2023]
Abstract
Kiwifruit (Actinidia spp.) is a commercially important horticultural fruit crop worldwide. Kiwifruit contains numerous minerals, vitamins, and dietary phytochemicals, that not only responsible for the flavor but can also serve as adjuncts in the treatment of diabetes, digestive disorders, cardiovascular system, cancer and heart disease. However, fruit quality and shelf life affect consumer's acceptance and production chain. Understanding the methods of fruit storage preservation, as well as their biochemical, physiological, and molecular basis is essential. In recent years, eco-friendly (comprehensive and environmentally friendly) treatments such as hot water, ozone, chitosan, quercetin, and antifungal additive from biocontrol bacteria or yeast have been applied to improve postharvest fruit quality with longer shelf life. This review provides a comprehensive overview of the latest advancements in control measures, applications, and mechanisms related to water loss, chilling injury, and pathogen diseases in postharvest kiwifruit. Further studies should utilize genome editing techniques to enhance postharvest fruit quality and disease resistance through site-directed bio-manipulation of the kiwifruit genome.
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Affiliation(s)
- Mengfei Lin
- Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang, Jiangxi, China; Jiangxi Kiwifruit Engineering Research Center, Nanchang, Jiangxi, China
| | - Zhu Gao
- Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang, Jiangxi, China; Jiangxi Kiwifruit Engineering Research Center, Nanchang, Jiangxi, China; Jinggangshan Institute of Biotechnology, Jiangxi Academy of Sciences, Ji'an, Jiangxi, China
| | - Xiaoling Wang
- Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang, Jiangxi, China; Jiangxi Kiwifruit Engineering Research Center, Nanchang, Jiangxi, China.
| | - Heqiang Huo
- Mid-Florida Research & Education Center, IFAS, University of Florida, Apopka, FL 32703, USA
| | - Jipeng Mao
- Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang, Jiangxi, China; Jiangxi Kiwifruit Engineering Research Center, Nanchang, Jiangxi, China
| | - Xuchen Gong
- Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang, Jiangxi, China; Jiangxi Kiwifruit Engineering Research Center, Nanchang, Jiangxi, China
| | - Lu Chen
- Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang, Jiangxi, China; Jiangxi Kiwifruit Engineering Research Center, Nanchang, Jiangxi, China; Jinggangshan Institute of Biotechnology, Jiangxi Academy of Sciences, Ji'an, Jiangxi, China
| | - Shiying Ma
- Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang, Jiangxi, China; Jiangxi Kiwifruit Engineering Research Center, Nanchang, Jiangxi, China
| | - Yunpeng Cao
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
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Wang W, He L, Zhang Z, Li W, Chen J, Chen T, Long Y. Activity of the botanical compound thymol against kiwifruit rot caused by Fusarium tricinctum and the underlying mechanisms. PEST MANAGEMENT SCIENCE 2023; 79:2493-2502. [PMID: 36864770 DOI: 10.1002/ps.7431] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 01/18/2023] [Accepted: 02/02/2023] [Indexed: 06/02/2023]
Abstract
BACKGROUND Kiwifruit rot is an important disease caused by different fungal pathogens, which can lead to huge economic loss in the kiwifruit industry. The aims of this study were to discover an effective botanical compound that significantly inhibits the pathogens causing kiwifruit rot, evaluate its control efficacy against this disease, and reveal the underlying mechanisms. RESULTS A strain of Fusarium tricinctum (GF-1), isolated from diseased kiwifruit, could cause fruit rot in both Actinidia chinensis var. chinensis and Actinidia chinensis var. deliciosa. Different botanical chemicals were used for antifungal activity test against GF-1 and thymol was the most effective one with a 50% effective concentration (EC50 ) of 30.98 mg L-1 . The minimal inhibitory concentration (MIC) of thymol against GF-1 was 90 mg L-1 . Control efficacy of thymol against kiwifruit rot was evaluated and the results indicated that thymol could effectively decrease the occurrence and spread of kiwifruit rot. The mechanisms underlying the antifungal activity of thymol against F. tricinctum were investigated, and it showed that thymol could significantly damage the ultrastructure, destroy the plasma membrane integrity, and instantaneously increase energy metabolisms of F. tricinctum. Further investigations indicated that thymol could extend shelf life of kiwifruit by increasing their storability. CONCLUSION Thymol can effectively inhibit F. tricinctum that is one of the causal agents of kiwifruit rot. Multiple modes of action are involved in the antifungal activity. The results of this study indicate that thymol can be a promising botanical fungicide to control kiwifruit rot and provide useful references for thymol application in agriculture system. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Weizhen Wang
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang, China
| | - Linan He
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang, China
| | - Zhuzhu Zhang
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang, China
| | - Wenzhi Li
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang, China
| | - Jia Chen
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang, China
| | - Tingting Chen
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang, China
| | - Youhua Long
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang, China
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Sepúlveda X, Vargas M, Vero S, Zapata N. Indigenous Yeasts for the Biocontrol of Botrytis cinerea on Table Grapes in Chile. J Fungi (Basel) 2023; 9:jof9050557. [PMID: 37233268 DOI: 10.3390/jof9050557] [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: 03/13/2023] [Revised: 04/20/2023] [Accepted: 05/08/2023] [Indexed: 05/27/2023] Open
Abstract
One hundred twenty-five yeast strains isolated from table grapes and apples were evaluated for the control Botrytis cinerea of in vitro and in vivo. Ten strains were selected for their ability to inhibit mycelial growth of B. cinerea in vitro. In the in vivo assays, these yeasts were tested at 20 °C on 'Thompson Seedless' berries for 7 days; only three were selected (m11, me99 and ca80) because they significantly reduced the incidence of gray mold. These three yeast strains were then evaluated at different concentrations (1 × 107, 1 × 108 and 1 × 109 cells mL-1) on 'Thompson Seedless' grape berries at 20 °C. The strains m11, me99 and ca80 reduced the incidence of B. cinerea to 11.9, 26.1 and 32.1%, respectively, when the berries were submerged in a yeast suspension at a concentration of 1 × 109 cells mL-1 24 h before inoculation with B. cinerea. The most favorable pH for antifungal activity was 4.6 in the three isolates. The three yeast strains secreted the hydrolytic enzymes chitinase and β-1-glucanase, and two strains (me99 and ca80) produced siderophores. The three yeast strains exhibited low oxidative stress tolerance and only strain m11 had the ability to produce biofilms. The strains were identified using 5.8S-ITS rDNA PCR-RFLP and correspond to the Meyerozyma guilliermondii (m11) and Aureobasidium pullulans (me99 and ca80) species.
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Affiliation(s)
- Ximena Sepúlveda
- Facultad de Agronomía, Universidad de Concepción, Avenida Vicente Méndez 595, Chillán 3780000, Chile
| | - Marisol Vargas
- Facultad de Agronomía, Universidad de Concepción, Avenida Vicente Méndez 595, Chillán 3780000, Chile
| | - Silvana Vero
- Facultad de Química, Universidad de la República, Av. Gral. Flores 2124, Montevideo 11800, Uruguay
| | - Nelson Zapata
- Facultad de Agronomía, Universidad de Concepción, Avenida Vicente Méndez 595, Chillán 3780000, Chile
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Zhao Q, Shi Y, Legrand Ngolong Ngea G, Zhang X, Yang Q, Zhang Q, Xu X, Zhang H. Changes of the microbial community in kiwifruit during storage after postharvest application of Wickerhamomyces anomalus. Food Chem 2023; 404:134593. [DOI: 10.1016/j.foodchem.2022.134593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 07/23/2022] [Accepted: 10/10/2022] [Indexed: 11/06/2022]
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9
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Černoša A, Gostinčar C, Lavrin T, Kostanjšek R, Lenassi M, Gunde-Cimerman N. Isolation and characterization of extracellular vesicles from biotechnologically important fungus Aureobasidium pullulans. Fungal Biol Biotechnol 2022; 9:16. [PMID: 36320088 PMCID: PMC9628041 DOI: 10.1186/s40694-022-00146-7] [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: 07/22/2022] [Accepted: 10/07/2022] [Indexed: 11/05/2022] Open
Abstract
Extracellular vesicles (EVs) are increasingly recognized as an important mechanism for cell-cell interactions. Their role in fungi is still poorly understood and they have been isolated from only a handful of species. Here, we isolated and characterized EVs from Aureobasidium pullulans, a biotechnologically important black yeast-like fungus that is increasingly used for biocontrol of phytopathogenic fungi and bacteria. After optimization of the isolation protocol, characterization of EVs from A. pullulans by transmission electron microscopy (TEM) revealed a typical cup-shaped morphology and different subpopulations of EVs. These results were confirmed by nanoparticle tracking analysis (NTA), which revealed that A. pullulans produced 6.1 × 108 nanoparticles per milliliter of culture medium. Proteomic analysis of EVs detected 642 proteins. A small fraction of them had signal peptides for secretion and transmembrane domains. Proteins characteristic of different synthesis pathways were found, suggesting that EVs are synthesized by multiple pathways in A. pullulans. Enrichment analysis using Gene Ontology showed that most of the proteins found in the EVs were associated with primary metabolism. When sequencing the small RNA fraction of A. pullulans EVs, we found two hypothetical novel mil-RNAs. Finally, we tested the biocontrol potential of EVs from A. pullulans. The EVs did not inhibit the germination of spores of three important phytopathogenic fungi-Botrytis cinerea, Colletotrichum acutatum, and Penicillium expansum. However, exposure of grown cultures of C. acutatum and P. expansum to A. pullulans EVs resulted in visible changes in morphology of colonies. These preliminary results suggest that EVs may be part of the antagonistic activity of A. pullulans, which is so far only partially understood. Thus, the first isolation and characterization of EVs from A. pullulans provides a starting point for further studies of EVs in the biotechnologically important traits of the biocontrol black fungus A. pullulans in particular and in the biological role of fungal EVs in general.
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Affiliation(s)
- Anja Černoša
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Cene Gostinčar
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Teja Lavrin
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Rok Kostanjšek
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Metka Lenassi
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Nina Gunde-Cimerman
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
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Yan H, Wang R, Ji N, Cao S, Ma C, Li J, Wang G, Huang Y, Lei J, Ba L. Preparation, Shelf, and Eating Quality of Ready-to-Eat “Guichang” Kiwifruit: Regulation by Ethylene and 1-MCP. Front Chem 2022; 10:934032. [PMID: 35910744 PMCID: PMC9326346 DOI: 10.3389/fchem.2022.934032] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 05/26/2022] [Indexed: 11/13/2022] Open
Abstract
The acceptance of kiwifruit by consumers is significantly affected by its slow ripening and susceptibility to deterioration. Ready-to-eat “Guichang” kiwifruit and its preparation technology were studied by the regulation of ethylene and 1-MCP. Harvested kiwifruits were treated with 100–2000 μl L−1ethylene for 36 h (20°C) and then treatment with 0–0.5 μl L−1 1-MCP. The results showed that the preservation effect of 0.5 μl L−1 1-MCP is inefficient when the soluble solid content of kiwifruit exceeded 15%. The ethylene-treated fruits reached an “edible window” after 24 h, but a higher concentration of ethylene would not further improve ripening efficiency, while the optimal ethylene concentration was 250 μl L−1. Moreover, after 250 μl L−1 ethylene treatment, 0.5 μl L−1 1-MCP would effectively prolong the “edible window” of fruits by approximately 19 days. The volatile component variety and ester content of 0.5 μl L−1 1-MCP-treated fruits were not different from those of the CK group. Principal component analysis and hierarchical cluster analysis indicated that the eating quality of fruits treated with 0.5 μl L−1 1-MCP was similar to that of fruits treated with ethylene. Consequently, ready-to-eat “Guichang” kiwifruit preparation includes ripening with 250 μl L−1 (20°C, 36 h) ethylene without exceeding the 1-MCP threshold and then treated with 0.5 μl L−1 1-MCP (20°C, 24 h). This study highlights the first development of a facile and low-cost preparation technology for ready-to-eat “Guichang” kiwifruit, which could reduce the time for harvested kiwifruit to reach the “edible window” and prolong the “edible window” of edible kiwifruit.
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Affiliation(s)
- Han Yan
- College of Food and Pharmaceutical Engineering, Guiyang University, Guiyang, China
| | - Rui Wang
- College of Food and Pharmaceutical Engineering, Guiyang University, Guiyang, China
- *Correspondence: Rui Wang,
| | - Ning Ji
- College of Food and Pharmaceutical Engineering, Guiyang University, Guiyang, China
| | - Sen Cao
- College of Food and Pharmaceutical Engineering, Guiyang University, Guiyang, China
| | - Chao Ma
- College of Food and Pharmaceutical Engineering, Guiyang University, Guiyang, China
| | - Jiangkuo Li
- Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, National Engineering and Technology Research Center for Preservation of Agricultural Produce, Tianjin, China
| | - Guoli Wang
- Fruit Industry Development Service Centre for Xiuwen County, Guiyang, China
| | - Yaxin Huang
- Fruit Industry Development Service Centre for Xiuwen County, Guiyang, China
| | - Jiqing Lei
- College of Food and Pharmaceutical Engineering, Guiyang University, Guiyang, China
| | - Liangjie Ba
- College of Food and Pharmaceutical Engineering, Guiyang University, Guiyang, China
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11
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Shi H, Zhou X, He X, Wang R, Zeng EL, Zhou WH. Study on the Antifungal Mechanism of Chinese herbal Extract on
Botryosphaeria dothidea. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hao Shi
- College of food science and engineering Central South University of Forestry and Technology Changsha People’s Republic of China
- College of Agriculture and Forestry Science Hunan Applied Technology University Changde People’s Republic of China
| | - Xiangyu Zhou
- School of Food Science and Nutrition University of Leeds Leeds West Yorkshire UK
| | - Xiaoe He
- College of Agriculture and Forestry Science Hunan Applied Technology University Changde People’s Republic of China
- College of Horticulture Hunan Agricultural University Changsha People’s Republic of China
| | - Rencai Wang
- College of food science and engineering Central South University of Forestry and Technology Changsha People’s Republic of China
- College of Horticulture Hunan Agricultural University Changsha People’s Republic of China
| | - Enni Liang Zeng
- Hunan Institute of Agricultural Products Processing Changsha People’s Republic of China
| | - Wen hua Zhou
- College of food science and engineering Central South University of Forestry and Technology Changsha People’s Republic of China
- College of Agriculture and Forestry Science Hunan Applied Technology University Changde People’s Republic of China
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12
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CAO S, MENG L, MA C, BA L, LEI J, JI N, WANG R. Effect of ozone treatment on physicochemical parameters and ethylene biosynthesis inhibition in Guichang Kiwifruit. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.64820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Sen CAO
- School of Food and Pharmaceutical Engineering, China; Guizhou Engineering Research Center for Fruit Processing, China
| | - Lingshuai MENG
- School of Food and Pharmaceutical Engineering, China; Guizhou Engineering Research Center for Fruit Processing, China
| | - Chao MA
- Guizhou Engineering Research Center for Fruit Processing, China
| | - Liangjie BA
- School of Food and Pharmaceutical Engineering, China; Guizhou Engineering Research Center for Fruit Processing, China
| | - Jiqing LEI
- School of Food and Pharmaceutical Engineering, China; Guizhou Engineering Research Center for Fruit Processing, China
| | - Ning JI
- School of Food and Pharmaceutical Engineering, China; Guizhou Engineering Research Center for Fruit Processing, China
| | - Rui WANG
- School of Food and Pharmaceutical Engineering, China; Guizhou Engineering Research Center for Fruit Processing, China
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13
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Grinbergs D, Chilian J, Padilla N, Reyes M, France A, Moya-Elizondo E, Gerding M. Endophytic Microorganisms Associated with Reversion of Silverleaf Disease Symptoms in Apple. PHYTOPATHOLOGY 2021; 111:1541-1550. [PMID: 33591814 DOI: 10.1094/phyto-12-20-0548-r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Silverleaf is caused by the fungus Chondrostereum purpureum, which produces wood necrosis and foliar silvering in woody plants. Field observations and studies in apple have shown the reversion of foliar symptoms. Because plants were clones and received identical agronomical management, it was hypothesized that reversion is driven by endophytic microbiota. Thus, the objectives of this study were to compare healthy, diseased, and reverted plants with respect to their physiology, endophytic microbial communities, antagonistic ability of their endophytes against C. purpureum, and defense genes expression. Water potential, stomatal conductance, chlorophyll content, and fluorescence were measured. Endophytic bacterial and fungal DNA were analyzed by denaturing gradient gel electrophoresis, and community richness and similarity were calculated. Wood cores were collected and bacterial and fungal endophytes were isolated and confronted with C. purpureum-virulent strains in dual-culture assays. Defense genes expression was measured by quantitative PCR. Results indicated that there were no differences in physiological parameters between healthy and reverted plants, except for fluorescence, and both type of plants differed from diseased ones. Bacterial and fungal community richness was similar in healthy and reverted plants and higher than in diseased ones. Endophytes from reverted and healthy plants showed high antagonism to C. purpureum. Furthermore, nonexpressor of pathogenesis-related gene 1 expression was upregulated in reverted plants, whereas phenylalanine ammonia lyase and polygalacturonase-inhibiting protein genes showed higher values in diseased plants. Overall, physiological, molecular, and microbial characteristics were similar between healthy and reverted plants, and both differed from diseased ones. Therefore, reversion of symptoms is associated with changes in the endophytic microbiota, which seems to be a promising source of biological control agents against C. purpureum.
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Affiliation(s)
- D Grinbergs
- Instituto de Investigaciones Agropecuarias, INIA, Chillán, Chile
- Universidad de Concepción, Chillán, Chile
| | - J Chilian
- Instituto de Investigaciones Agropecuarias, INIA, Chillán, Chile
| | - N Padilla
- Universidad de Concepción, Chillán, Chile
| | - M Reyes
- Instituto de Investigaciones Agropecuarias, INIA, Chillán, Chile
| | - A France
- Instituto de Investigaciones Agropecuarias, INIA, Chillán, Chile
| | | | - M Gerding
- Universidad de Concepción, Chillán, Chile
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Biocontrol Activity of Aureubasidium pullulans and Candida orthopsilosis Isolated from Tectona grandis L. Phylloplane against Aspergillus sp. in Post-Harvested Citrus Fruit. SUSTAINABILITY 2021. [DOI: 10.3390/su13137479] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study aimed to isolate and identify moulds from rotten Citrus sinensis post-harvests and to investigate the activity of antagonist and biocontrol activity moulds that cause citrus fruit rotting. A total of 12 mould isolates were obtained. Following the pathogenicity test, two representative mould isolates were selected and identified based on the sequence analyses of internal transcribed spacer (ITS) regions of the rDNA. Methods used in this study include isolation of fungal postharvest diseases, pathogenicity assay, antagonism assay, growth curve analysis, in vitro biocontrol assay, and molecular phylogenetic analysis. Two isolates of fungal postharvest diseases were determined as the most destructive pathogens. The biocontrol assay showed that isolates of Y1 and Y10 were capable to reduce the growth of fungal isolates K6 and K9 and mitigate up to 100% of the damage of sweet citrus fruits after 7 days of incubation. The moulds were identified as K6 (Aspergillus flavus sensu lato) and K9 (Aspergillus niger sensu lato). Phylogenetic analysis showed that the Y10 yeast isolate was identified as Candida orthopsilosis, whereas the Y1 isolate had a close genetic relationship with Aureobasidium pullulans and possibly belongs to a new species. Further analysis is necessary to confirm this finding.
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15
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Post-Harvest Non-Conventional and Traditional Methods to Control Cadophora luteo-olivacea: Skin Pitting Agent of Actinidia chinensis var. deliciosa (A. Chev.). HORTICULTURAE 2021. [DOI: 10.3390/horticulturae7070169] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Cadophora luteo-olivacea represents a critical problem for kiwifruit in the post-harvest phase, mainly for its little note epidemiology. The study presented some results about the possibility of preserving kiwifruit from skin pitting symptoms using alternative methods to fungicides. By in vitro assays, antagonist mechanisms of action against pathogen isolates were tested. Trichoderma harzianum (Th1) showed the highest inhibitory activity against C. luteo-olivacea isolates by volatile, non-volatile, and by dual culture assay, displaying an inhibition respectively by 90%, 70.6%, and 78.8%, and with respect to Aureobasidium pullulans (L1 and L8) by 23.3% and 25.8%, 50% and 34.7%, and 22.5% and 23.6%, respectively. Further, the sensitivity on CFU and mycelial growth of C. luteo-olivacea isolates to fludioxonil, and CaCl2 was tested, displaying interesting EC50 values (0.36 and 0.92 g L−1, 22.5 g L−1, respectively). The effect of Brassica nigra defatted meal was tested as biofumigation assays and through FT-IR (Fourier-Transform Infrared) spectroscopy. The above-mentioned treatments were applied in vivo to evaluate their efficacy on kiwifruits. Our data demonstrated that alternative solutions could be considered to control postharvest pathogens such as C. luteo-olivacea.
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Rueda-Mejia MP, Nägeli L, Lutz S, Hayes RD, Varadarajan AR, Grigoriev IV, Ahrens CH, Freimoser FM. Genome, transcriptome and secretome analyses of the antagonistic, yeast-like fungus Aureobasidium pullulans to identify potential biocontrol genes. MICROBIAL CELL 2021; 8:184-202. [PMID: 34395586 PMCID: PMC8329847 DOI: 10.15698/mic2021.08.757] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 05/21/2021] [Accepted: 05/26/2021] [Indexed: 12/27/2022]
Abstract
Aureobasidium pullulans is an extremotolerant, cosmopolitan yeast-like fungus that successfully colonises vastly different ecological niches. The species is widely used in biotechnology and successfully applied as a commercial biocontrol agent against postharvest diseases and fireblight. However, the exact mechanisms that are responsible for its antagonistic activity against diverse plant pathogens are not known at the molecular level. Thus, it is difficult to optimise and improve the biocontrol applications of this species. As a foundation for elucidating biocontrol mechanisms, we have de novo assembled a high-quality reference genome of a strongly antagonistic A. pullulans strain, performed dual RNA-seq experiments, and analysed proteins secreted during the interaction with the plant pathogen Fusarium oxysporum. Based on the genome annotation, potential biocontrol genes were predicted to encode secreted hydrolases or to be part of secondary metabolite clusters (e.g., NRPS-like, NRPS, T1PKS, terpene, and β-lactone clusters). Transcriptome and secretome analyses defined a subset of 79 A. pullulans genes (among the 10,925 annotated genes) that were transcriptionally upregulated or exclusively detected at the protein level during the competition with F. oxysporum. These potential biocontrol genes comprised predicted secreted hydrolases such as glycosylases, esterases, and proteases, as well as genes encoding enzymes, which are predicted to be involved in the synthesis of secondary metabolites. This study highlights the value of a sequential approach starting with genome mining and consecutive transcriptome and secretome analyses in order to identify a limited number of potential target genes for detailed, functional analyses.
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Affiliation(s)
- Maria Paula Rueda-Mejia
- Agroscope, Research Division Plant Protection, Müller-Thurgau-Strasse 29, 8820 Wädenswil, Switzerland
| | - Lukas Nägeli
- Agroscope, Research Division Plant Protection, Müller-Thurgau-Strasse 29, 8820 Wädenswil, Switzerland
| | - Stefanie Lutz
- Agroscope, Competence Division Method Development and Analytics, Müller-Thurgau-Strasse 29, 8820, Wädenswil, Switzerland
| | - Richard D Hayes
- U.S. Department of Energy Joint Genome Institute (JGI), Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, California 94720, USA
| | - Adithi R Varadarajan
- Agroscope, Competence Division Method Development and Analytics, Müller-Thurgau-Strasse 29, 8820, Wädenswil, Switzerland
| | - Igor V Grigoriev
- U.S. Department of Energy Joint Genome Institute (JGI), Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, California 94720, USA.,Department of Plant and Microbial Biology, University of California Berkeley, Koshland Hall, Berkeley, CA, USA
| | - Christian H Ahrens
- Agroscope, Competence Division Method Development and Analytics, Müller-Thurgau-Strasse 29, 8820, Wädenswil, Switzerland.,SIB, Swiss Institute of Bioinformatics, Wädenswil, Switzerland
| | - Florian M Freimoser
- Agroscope, Research Division Plant Protection, Müller-Thurgau-Strasse 29, 8820 Wädenswil, Switzerland
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Dai Y, Wang Z, Leng J, Sui Y, Jiang M, Wisniewski M, Liu J, Wang Q. Eco-friendly management of postharvest fungal decays in kiwifruit. Crit Rev Food Sci Nutr 2021; 62:8307-8318. [PMID: 33998844 DOI: 10.1080/10408398.2021.1926908] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Kiwifruit is purchased by consumers worldwide and is increasing in demand. Unfortunately, kiwifruit is susceptible to postharvest decay caused by a variety of fungal pathogens, including Botrytis cinerea, Penicillium expansum, Alternaria alternata, Botryosphaeria dothidea, and Diaporthe spp. Among these pathogens, B. cinerea is the most prevalent and devastating. Infections by these fungal pathogens result in a deterioration in fruit quality and a reduction in marketable yield. Eco-friendly methods to control kiwifruit postharvest decay have been explored as alternatives to the use of synthetic fungicides. In this review, we provide an overview and discuss the virulence and pathogenesis of fungi that are causal agents of kiwifruit decay, especially B. cinerea, including recent molecular and genomic studies. Advances in pre- and postharvest measures for postharvest decay management, including biological control, physical applications, the use of natural compounds and plant hormones, and the use of combined methods, are also reviewed. Eco-friendly control measures are a critical component of an integrated management approach for sustainable production of kiwifruit. The need for further research on the use of microbial consortia for the management of postharvest diseases of kiwifruit is also discussed.
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Affiliation(s)
- Yuan Dai
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
| | - Zhenshuo Wang
- Department of Plant Pathology, MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
| | - Jinsong Leng
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
| | - Yuan Sui
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
| | - Mingguo Jiang
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, School of Marine Sciences and Biotechnology, Guangxi University for Nationalities, Nanning, China
| | - Michael Wisniewski
- Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Jia Liu
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
| | - Qi Wang
- Department of Plant Pathology, MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
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18
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Kong Q, An P, Xu Z, Zhang R, Qi J, Ren X. New insights into the alleviating role of Melaleuca alternifolia oil on metabolites pathway disorder of grapes caused by Aspergillus niger, verified by corresponding key genes expression. Food Chem 2020; 327:127083. [DOI: 10.1016/j.foodchem.2020.127083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 05/07/2020] [Accepted: 05/14/2020] [Indexed: 12/12/2022]
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19
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Structural Characterization, DFT Calculation, NCI, Scan-Rate Analysis and Antifungal Activity against Botrytis cinerea of ( E)-2-{[(2-Aminopyridin-2-yl)imino]-methyl}-4,6-di- tert-butylphenol (Pyridine Schiff Base). MOLECULES (BASEL, SWITZERLAND) 2020; 25:molecules25122741. [PMID: 32545715 PMCID: PMC7357110 DOI: 10.3390/molecules25122741] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 05/30/2020] [Accepted: 06/01/2020] [Indexed: 12/12/2022]
Abstract
Botrytis cinerea is a ubiquitous necrotrophic filamentous fungal phytopathogen that lacks host specificity and can affect more than 1000 different plant species. In this work, we explored L1 [(E)-2-{[(2-aminopyridin-2-yl)imino]-methyl}-4,6-di-tert-butylphenol], a pyridine Schiff base harboring an intramolecular bond (IHB), regarding their antifungal activity against Botrytis cinerea. Moreover, we present a full characterization of the L1 by NMR and powder diffraction, as well as UV–vis, in the presence of previously untested different organic solvents. Complementary time-dependent density functional theory (TD-DFT) calculations were performed, and the noncovalent interaction (NCI) index was determined. Moreover, we obtained a scan-rate study on cyclic voltammetry of L1. Finally, we tested the antifungal activity of L1 against two strains of Botrytis cinerea (B05.10, a standard laboratory strain; and A1, a wild type strains isolated from Chilean blueberries). We found that L1 acts as an efficient antifungal agent against Botrytis cinerea at 26 °C, even better than the commercial antifungal agent fenhexamid. Although the antifungal activity was also observed at 4 °C, the effect was less pronounced. These results show the high versatility of this kind of pyridine Schiff bases in biological applications.
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Liu J, Kennedy JF, Zhang X, Heng Y, Chen W, Chen Z, Wu X, Wu X. Preparation of alginate oligosaccharide and its effects on decay control and quality maintenance of harvested kiwifruit. Carbohydr Polym 2020; 242:116462. [PMID: 32564825 DOI: 10.1016/j.carbpol.2020.116462] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/12/2020] [Accepted: 05/14/2020] [Indexed: 12/21/2022]
Abstract
Alginate oligosaccharide (AOS) is a biological carbohydrate formed from the degradation of sodium alginate. AOS used in this study was enzymatically prepared and had varying degrees of polymerization (2-8). AOS applied to harvested kiwifruit stored at 25 °C inhibited gray mold, blue mold, and black rot. AOS inhibited pectin solubilization, gene expression of pectin methylesterase and polygalacturonase, and the corresponding enzyme activity of their encoded proteins in kiwifruit. In contrast, AOS induced antioxidant gene expression and enzyme activity, including catalase and superoxide dismutase. The level of total phenols and flavonoids in kiwifruit was also elevated. AOS treatment also had a beneficial effect on fruit quality. Collectively, the results indicate that postharvest treatment with AOS inhibits postharvest decay and prolongs fruit quality by suppressing cell wall degradation and eliciting antioxidants in harvested kiwifruit. AOS has the potential to be used to preserve and extend the postharvest quality of kiwifruit.
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Affiliation(s)
- Jia Liu
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
| | - John F Kennedy
- Chembiotech Laboratories, Kyrewood House Tenbury Wells, Worcestershire, WR15 8SG, UK
| | - Xiaofang Zhang
- Department of Plant Pathology, China Agricultural University, Beijing, 100193, China
| | - Yin Heng
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
| | - Wei Chen
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
| | - Zhuo Chen
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, Guizhou 550025, China
| | - Xian Wu
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, Guizhou 550025, China.
| | - Xuehong Wu
- Department of Plant Pathology, China Agricultural University, Beijing, 100193, China.
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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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Reduction of acrylamide formation in fried potato chips by Aureobasidum pullulans L1 strain. Int J Food Microbiol 2019; 289:168-173. [DOI: 10.1016/j.ijfoodmicro.2018.09.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 09/18/2018] [Accepted: 09/19/2018] [Indexed: 11/22/2022]
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CAVALCANTI VYTÓRIAP, ARAÚJO NEILTONA, SCHWANESTRADA KÁTIAR, PASQUAL MOACIR, DÓRIA JOYCE. Athelia (Sclerotium) rolfsii in Allium sativum: potential biocontrol agents and their effects on plant metabolites. ACTA ACUST UNITED AC 2018; 90:3949-3962. [DOI: 10.1590/0001-3765201820180208] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 08/01/2018] [Indexed: 01/22/2023]
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Abstract
The saprophytic yeast-like fungus Aureobasidium pullulans has been well documented for over 60 years in the microbiological literature. It is ubiquitous in distribution, being found in a variety of environments (plant surfaces, soil, water, rock surfaces and manmade surfaces), and with a worldwide distribution from cold to warm climates and wet/humid regions to arid ones. Isolates and strains of A. pullulans produce a wide range of natural products well documented in the international literature and which have been regarded as safe for biotechnological and environmental applications. Showing antagonistic activity against plant pathogens (especially post-harvest pathogens) is one of the major applications currently in agriculture of the fungus, with nutrient and space competition, production of volatile organic compounds, and production of hydrolytic enzymes and antimicrobial compounds (antibacterial and antifungal). The fungus also shows a positive role on mycotoxin biocontrol through various modes, with the most striking being that of binding and/or absorption. A. pullulans strains have been reported to produce very useful industrial enzymes, such as β-glucosidase, amylases, cellulases, lipases, proteases, xylanases and mannanases. Pullulan (poly-α-1,6-maltotriose biopolymer) is an A. pullulans trademark product with significant properties and biotechnological applications in the food, cosmetic and pharmaceutical industries. Poly (β-l-malic acid), or PMA, which is a natural biopolyester, and liamocins, a group of produced heavy oils and siderophores, are among other valuable compounds detected that are of possible biotechnological use. The fungus also shows a potential single-cell protein source capacity with high levels of nucleic acid components and essential amino acids, but this remains to be further explored. Last but not least, the fungus has shown very good biocontrol against aerial plant pathogens. All these properties are of major interest in the vitivinicultural sector and are thoroughly reviewed under this prism, concluding on the importance that A. pullulans may have if used at both vineyard and winery levels. This extensive array of properties provides excellent tools for the viticulturist/farmer as well as for the oenologist to combat problems in the field and create a high-quality wine.
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