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Xiao P, Tian X, Zhu P, Xu Y, Zhou C. The use of surfactin in inhibiting Botrytis cinerea and in protecting winter jujube from the gray mold. AMB Express 2023; 13:37. [PMID: 37118318 PMCID: PMC10147881 DOI: 10.1186/s13568-023-01543-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 04/05/2023] [Indexed: 04/30/2023] Open
Abstract
Surfactin has the potential to be used as a food preservative. However, efficiency and action mechanism in various applications need more assessments and research. In this study, the antifungal effects and the mechanism of action of surfactin on the fungus Botrytis cinerea were investigated. The effects of applying surfactin for the removal of gray mold on the quality of winter jujube were investigated based on the changes in fruit fatty acids. The results showed that (1) surfactin significantly inhibited the growth of B. cinerea, the EC50 at 5 d was 46.42 mg/L. (2) Surfactin significantly reduced the disease incidence and diameter of gray mold-inoculated winter jujube in a concentration-dependent manner. For that treated with surfactin at the EC50, the incidence decreased by 38.89%. (3) For B. cinerea under surfactin treatment, the mycelial morphology changed, the levels of total lipids and ergosterol decreased, the reactive oxygen species levels increased, and the cell integrity was completely damaged. (4) For winter jujube inoculated by B. cinerea, the contents of saturated fatty acids decreased and unsaturated fatty acids increased. For those under the surfactin treatments, winter jujube maintained the fatty acid composition at the level of non-inoculated groups. Mechanical injury significantly changed the fatty acid composition of winter jujube; however, surfactin not only was able to inhibit the growth of gray mold but also mitigated the adverse effects from mechanical injury. The present study demonstrated the potential applications of surfactin in the preservation of postharvest fruit quality.
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Affiliation(s)
- Peng Xiao
- School of Marine Science, Ningbo University, Ningbo, 315211, Zhejiang, China
| | - Xiaoyu Tian
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315211, China
| | - Peng Zhu
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315211, China
| | - Yangyang Xu
- College of Food and Pharmaceutical Sciences, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo, 315800, China
| | - Chengxu Zhou
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315211, China.
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Zhang QQ, Shi J, Shen PY, Xi F, Qian CY, Zhang GH, Zhu HJ, Xiao HM. Exploring the Efficacy of Biocontrol Microbes against the Fungal Pathogen Botryosphaeria dothidea JNHT01 Isolated from Fresh Walnut Fruit. Foods 2022; 11:foods11223651. [PMID: 36429242 PMCID: PMC9689359 DOI: 10.3390/foods11223651] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/03/2022] [Accepted: 11/11/2022] [Indexed: 11/18/2022] Open
Abstract
Biological control by antagonistic microorganisms are an effective and environmentally friendly approach in postharvest disease management. In order to develop a biocontrol agent for fresh walnut fruit preservation, the potential biocontrol effects of Bacillus amyloliquefaciens RD.006 and Hanseniaspora uvarum FA.006 against the main fungal pathogen of walnuts were evaluated. Botryosphaeria species showed the highest detection, and the JNHT01 strain showed the strongest pathogenicity. Bot. dothidea JNHT01 caused gray mold and brown rot on fresh walnuts, and its incidence rate reached 100% after an 8 days incubation. The growth of this fungal strain can be promoted by lighting, with a maximum growth rate achieved at a pH of 7 and at 28 °C. B. amyloliquefaciens RD.006 and H. uvarum FA.006 supernatants at a concentration of 1-15% v/v showed antifungal activity. The mycelial growth inhibition rates of Bot. dothidea JNHT01 were 23.67-82.61% for B. amyloliquefaciens RD.006 and 1.45-21.74% for H. uvarum FA.006. During Bot. dothidea JNHT01 growth, the biomass, nucleic acid leakage, and malondialdehyde content gradually increased, while the DPPH scavenging capacity and SOD activity decreased. The B. amyloliquefaciens RD.006 and H. uvarum FA.006 strains showed antifungal activity by damaging fungal cell membranes and reducing fungal antioxidant activity. Moreover, the antifungal effect of B. amyloliquefaciens RD.006 was higher than that of H. uvarum FA.006. Hence, the RD.006 strain of B. amyloliquefaciens can be considered a potential biocontrol agent for the management of postharvest walnut diseases caused by Bot. dothidea.
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Affiliation(s)
- Qiu Qin Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China (H.M.X.)
| | - Jie Shi
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China (H.M.X.)
| | - Pei Yao Shen
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China (H.M.X.)
| | - Fei Xi
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China (H.M.X.)
| | - Cheng Yu Qian
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China (H.M.X.)
| | - Guo Hua Zhang
- Shandong Wukangxuan Modern Agriculture and Forestry Development Co., Ltd., Zoucheng 273519, China
| | - Hai Jun Zhu
- Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Hong Mei Xiao
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China (H.M.X.)
- Correspondence: ; Tel./Fax: +86-02584395618
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Jindo K, Goron TL, Pizarro-Tobías P, Sánchez-Monedero MÁ, Audette Y, Deolu-Ajayi AO, van der Werf A, Goitom Teklu M, Shenker M, Pombo Sudré C, Busato JG, Ochoa-Hueso R, Nocentini M, Rippen J, Aroca R, Mesa S, Delgado MJ, Tortosa G. Application of biostimulant products and biological control agents in sustainable viticulture: A review. FRONTIERS IN PLANT SCIENCE 2022; 13:932311. [PMID: 36330258 PMCID: PMC9623300 DOI: 10.3389/fpls.2022.932311] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 09/05/2022] [Indexed: 06/16/2023]
Abstract
Current and continuing climate change in the Anthropocene epoch requires sustainable agricultural practices. Additionally, due to changing consumer preferences, organic approaches to cultivation are gaining popularity. The global market for organic grapes, grape products, and wine is growing. Biostimulant and biocontrol products are often applied in organic vineyards and can reduce the synthetic fertilizer, pesticide, and fungicide requirements of a vineyard. Plant growth promotion following application is also observed under a variety of challenging conditions associated with global warming. This paper reviews different groups of biostimulants and their effects on viticulture, including microorganisms, protein hydrolysates, humic acids, pyrogenic materials, and seaweed extracts. Of special interest are biostimulants with utility in protecting plants against the effects of climate change, including drought and heat stress. While many beneficial effects have been reported following the application of these materials, most studies lack a mechanistic explanation, and important parameters are often undefined (e.g., soil characteristics and nutrient availability). We recommend an increased study of the underlying mechanisms of these products to enable the selection of proper biostimulants, application methods, and dosage in viticulture. A detailed understanding of processes dictating beneficial effects in vineyards following application may allow for biostimulants with increased efficacy, uptake, and sustainability.
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Affiliation(s)
- Keiji Jindo
- Agrosystems Research, Wageningen University and Research, Wageningen, Netherlands
| | - Travis L. Goron
- Department of Plant Agriculture, University of Guelph, Guelph, ON, Canada
| | - Paloma Pizarro-Tobías
- Faculty of Computer Sciences, Multimedia and Telecommunication, Universitat Oberta de Catalunya (UOC), Barcelona, Spain
| | - Miguel Ángel Sánchez-Monedero
- Department of Soil and Water Conservation and Organic Waste Management, Centro de Edafología y Biología Aplicada del Segura (CEBAS), Agencia Estatal CSIC, Murcia, Spain
| | - Yuki Audette
- School of Environmental Sciences, University of Guelph, Guelph, ON, Canada
- Chitose Laboratory Corp., Kawasaki, Japan
| | | | - Adrie van der Werf
- Agrosystems Research, Wageningen University and Research, Wageningen, Netherlands
| | | | - Moshe Shenker
- The Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, Israel
| | - Cláudia Pombo Sudré
- Laboratório de Melhoramento Genético Vegetal, Universidade Estadual do Norte Fluminense Darcy Ribeiro, UENF, Campos dos Goytacazes, Brazil
| | - Jader Galba Busato
- Faculdade de Agronomia e Medicina Veterinária, Campus Universitário Darcy Ribeiro, Universidade de Brasília, Brasília, DF, Brazil
| | - Raúl Ochoa-Hueso
- Department of Biology, IVAGRO, Agroalimentario, Campus del Rio San Pedro, University of Cádiz, Cádiz, Spain
- Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, Netherlands
| | - Marco Nocentini
- Dipartimento di Scienze e Tecnologie Agrarie, Alimentari, Ambientali e Forestali (DAGRI), Università degli Studi Firenze, Firenze, Italy
| | | | - Ricardo Aroca
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín (EEZ), Agencia Estatal CSIC, Granada, Spain
| | - Socorro Mesa
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín (EEZ), Agencia Estatal CSIC, Granada, Spain
| | - María J. Delgado
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín (EEZ), Agencia Estatal CSIC, Granada, Spain
| | - Germán Tortosa
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín (EEZ), Agencia Estatal CSIC, Granada, Spain
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Hypovirulence of Colletotrichum gloesporioides Associated with dsRNA Mycovirus Isolated from a Mango Orchard in Thailand. Viruses 2022; 14:v14091921. [PMID: 36146727 PMCID: PMC9504431 DOI: 10.3390/v14091921] [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: 07/19/2022] [Revised: 08/26/2022] [Accepted: 08/27/2022] [Indexed: 11/23/2022] Open
Abstract
The pathogenic fungus Colletotrichum gloeosporioides causes anthracnose disease, which is an important fungal disease affecting the production of numerous crops around the world. The presence of mycoviruses, however, may have an impact on the pathogenicity of the fungal host. Here, we describe a double-stranded RNA (dsRNA) mycovirus, which was isolated from a field strain of C. gloeosporioides, Ssa-44.1. The 2939 bp genome sequence comprises two open reading frames (ORFs) that encode for a putative protein and RNA-dependent RNA polymerase (RdRp). The Ssa-44.1 mycovirus is a member of the unclassified mycovirus family named Colletotrichum gloeosporioides RNA virus 1 strain Ssa-44.1 (CgRV1-Ssa-44.1), which has a phylogenetic similarity to Colletotrichum gleosporioides RNA virus 1 (CgRV1), which was isolated from citrus leaves in China. In C. gloeosporioides, CgRV1-Ssa-44.1 was shown to be linked to hypovirulence. CgRV1-Ssa-44.1 has a low spore transfer efficiency but can successfully spread horizontally to isogenic virus-free isolates. Furthermore, CgRV1-Ssa-44.1 had a strong biological control impact on C. gloeosporioides on mango plants. This study is the first to describe a hypovirulence-associated mycovirus infecting C. gloeosporioides, which has the potential to assist with anthracnose disease biological management.
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Rivas-Garcia T, Murillo-Amador B, Reyes-Pérez JJ, Chiquito-Contreras RG, Preciado-Rangel P, Ávila-Quezada GD, Lara-Capistran L, Hernandez-Montiel LG. Debaryomyces hansenii, Stenotrophomonas rhizophila, and Ulvan as Biocontrol Agents of Fruit Rot Disease in Muskmelon (Cucumis melo L.). PLANTS 2022; 11:plants11020184. [PMID: 35050074 PMCID: PMC8780834 DOI: 10.3390/plants11020184] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/07/2022] [Accepted: 01/07/2022] [Indexed: 11/18/2022]
Abstract
The indiscriminate use of synthetic fungicides has led to negative impact to human health and to the environment. Thus, we investigated the effects of postharvest biocontrol treatment with Debaryomyces hansenii, Stenotrophomonas rhizophila, and a polysaccharide ulvan on fruit rot disease, storability, and antioxidant enzyme activity in muskmelon (Cucumis melo L. var. reticulatus). Each fruit was treated with (1) 1 × 106 cells mL−1 of D. hansenii, (2) 1 × 108 CFU mL−1 of S. rhizophila, (3) 5 g L−1 of ulvan, (4) 1 × 106 cells mL−1 of D. hansenii + 1 × 108 CFU mL−1 of S. rhizophila, (5) 1 × 108 CFU mL−1 of S. rhizophila + 5 g L−1 of ulvan, (6) 1 × 106 cells mL−1 of D. hansenii + 1 × 108 CFU mL−1 of S. rhizophila + 5 g L−1 of ulvan, (7) 1000 ppm of benomyl or sterile water (control). The fruits were air-dried for 2 h, and stored at 27 °C ± 1 °C and 85–90% relative humidity. The fruit rot disease was determined by estimating the disease incidence (%) and lesion diameter (mm), and the adhesion capacity of the biocontrol agents was observed via electron microscopy. Phytopathogen inoculation time before and after adding biocontrol agents were also recorded. Furthermore, the storability quality, weight loss (%), firmness (N), total soluble solids (%), and pH were quantified. The antioxidant enzymes including catalase, peroxidase, superoxide dismutase, and phenylalanine ammonium lyase were determined. In conclusion, the mixed treatment containing D. hansenii, S. rhizophila, and ulvan delayed fruit rot disease, preserved fruit quality, and increased antioxidant activity. The combined treatment is a promising and effective biological control method to promote the shelf life of harvested muskmelon.
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Affiliation(s)
- Tomas Rivas-Garcia
- CONACYT-Universidad Autónoma Chapingo, Carretera Federal México-Texcoco km 38.5, San Diego, Texcoco 56230, Mexico
- Correspondence: (T.R.-G.); (L.G.H.-M.)
| | - Bernardo Murillo-Amador
- Centro de Investigaciones Biológicas del Noroeste, Calle Instituto Politécnico Nacional 195, Col. Playa Palo de Santa Rita Sur, La Paz 23096, Mexico;
| | - Juan J. Reyes-Pérez
- Facultad de Ciencias Pecuarias, Universidad Técnica Estatal de Quevedo, Av. Quito km 1.5 vía a Santo Domingo, Quevedo 120501, Los Ríos, Ecuador;
| | - Roberto G. Chiquito-Contreras
- Facultad de Ciencias Agrícolas, Universidad Veracruzana, Circuito Universitario Gonzalo Aguirre-Beltrán S/N, Zona Universitaria, Xalapa 91090, Mexico; (R.G.C.-C.); (L.L.-C.)
| | - Pablo Preciado-Rangel
- Tecnológico Nacional de México, Instituto Tecnológico de Torreón, Carretera Torreón-San Pedro km 7.5, Ejido Ana, Torreón 27179, Mexico;
| | - Graciela D. Ávila-Quezada
- Facultad de Ciencias Agrotecnológicas, Universidad Autónoma de Chihuahua, Escorza 900, Col. Centro, Chihuahua 31000, Mexico;
| | - Liliana Lara-Capistran
- Facultad de Ciencias Agrícolas, Universidad Veracruzana, Circuito Universitario Gonzalo Aguirre-Beltrán S/N, Zona Universitaria, Xalapa 91090, Mexico; (R.G.C.-C.); (L.L.-C.)
| | - 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: (T.R.-G.); (L.G.H.-M.)
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Meena M, Yadav G, Sonigra P, Nagda A, Mehta T, Zehra A, Swapnil P. Role of Microbial Bioagents as Elicitors in Plant Defense Regulation. TRANSCRIPTION FACTORS FOR BIOTIC STRESS TOLERANCE IN PLANTS 2022:103-128. [DOI: 10.1007/978-3-031-12990-2_6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
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Wang Y, Qiao Y, Zhang M, Ma Z, Xue Y, Mi Q, Wang A, Feng J. Potential value of small-molecule organic acids for the control of postharvest gray mold caused by Botrytis cinerea. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2021; 177:104884. [PMID: 34301352 DOI: 10.1016/j.pestbp.2021.104884] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/18/2021] [Accepted: 05/22/2021] [Indexed: 06/13/2023]
Abstract
In the present study, a total of 21 natural or synthetic small-molecule organic acids were selected and determined for their activity against postharvest gray mold caused by B. cinerea. Overall, cuminic acid, which was extracted from the seed of Cuminum cyminum L, showed the most promising antifungal activity against B. cinerea both in vitro and in vivo. The study on action mechanism showed that cuminic acid could inhibit the development of sclerotia and the secretion of oxalic acid, destroy the cell membrane integrity, and down regulate the expression of several key genes involved in sclerotia development and pathogenicity of B. cinerea. Furthermore, cuminic acid could potentially reduce the degradation of TSS and TA content, while it had no significant effect on the weight loss, firmness, and VC content of apple and tomato. Importantly, cuminic acid could enhance the antioxidant enzyme activities of the fruits. All these results demonstrate the antifungal activity and highlight the great potential of cuminic acid as an alternative environmental-friendly agent for the control of postharvest gray mold both on fruits and vegetables.
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Affiliation(s)
- Yong Wang
- College of plant protection, Northwest A&F University, Yangling 712100, Shaanxi, China; Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yonghui Qiao
- College of plant protection, Northwest A&F University, Yangling 712100, Shaanxi, China; Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Mengwei Zhang
- College of plant protection, Northwest A&F University, Yangling 712100, Shaanxi, China; Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Zhiqing Ma
- College of plant protection, Northwest A&F University, Yangling 712100, Shaanxi, China; Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yuanji Xue
- College of plant protection, Northwest A&F University, Yangling 712100, Shaanxi, China; Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Qianqian Mi
- College of plant protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Aling Wang
- College of plant protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Juntao Feng
- College of plant protection, Northwest A&F University, Yangling 712100, Shaanxi, China; Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling 712100, Shaanxi, China.
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Chakraborty M, Mahmud NU, Ullah C, Rahman M, Islam T. Biological and biorational management of blast diseases in cereals caused by Magnaporthe oryzae. Crit Rev Biotechnol 2021; 41:994-1022. [PMID: 34006149 DOI: 10.1080/07388551.2021.1898325] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Blast diseases, caused by the fungal pathogen Magnaporthe oryzae, are among the most destructive diseases that occur on at least 50 species of grasses, including cultivated cereals wheat, and rice. Although fungicidal control of blast diseases has widely been researched, development of resistance of the pathogen against commercially available products makes this approach unreliable. Novel approaches such as the application of biopesticides against the blast fungus are needed for sustainable management of this economically important disease. Antagonistic microorganisms, such as fungi and probiotic bacteria from diverse taxonomic genera were found to suppress blast fungi both in vitro and in vivo. Various classes of secondary metabolites, such as alkaloids, phenolics, and terpenoids of plant and microbial origin significantly inhibit fungal growth and may also be effective in managing blast diseases. Common modes of action of microbial biocontrol agents include: antibiosis, production of lytic enzymes, induction of systemic resistance in host plant, and competition for nutrients or space. However, the precise mechanism of biocontrol of the blast fungus by antagonistic microorganisms and/or their bioactive secondary metabolites is not well understood. Commercial formulations of biocontrol agents and bioactive natural products could be cost-effective and sustainable but their availability at this time is extremely limited. This review updates our knowledge on the infection pathway of the wheat blast fungus, catalogs naturally occurring biocontrol agents that may be effective against blast diseases, and discusses their role in sustainable management of the disease.
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Affiliation(s)
- Moutoshi Chakraborty
- Institute of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - Nur Uddin Mahmud
- Institute of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - Chhana Ullah
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Mahfuzur Rahman
- WVU Extension Service, West Virginia University, Morgantown, WV, USA
| | - Tofazzal Islam
- Institute of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
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Trichovariability in rhizosphere soil samples and their biocontrol potential against downy mildew pathogen in pearl millet. Sci Rep 2021; 11:9517. [PMID: 33947949 PMCID: PMC8096818 DOI: 10.1038/s41598-021-89061-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 04/19/2021] [Indexed: 02/03/2023] Open
Abstract
The present work is aimed to examine the genetic variability and the distribution pattern of beneficial Trichoderma spp. isolated from rhizosphere samples and their mode of action in improving the plant health. A total of 131 suspected fungi were isolated from the rhizospheric soil and 91 isolates were confirmed as Trichoderma spp. T. asperellum and T. harzianum were found high in the frequency of occurrence. Genetic diversity analysis using RAPD and ISSR revealed the diverse distribution pattern of Trichoderma spp. indicating their capability to adapt to broad agroclimatic conditions. Analysis of genetic diversity using molecular markers revealed intra-species diversity of isolated Trichoderma spp. The frequency of pearl millet (PM) root colonization by Trichoderma spp. was found to be 100%. However, they showed varied results for indole acetic acid, siderophore, phosphate solubilization, β-1,3-glucanase, chitinase, cellulase, lipase, and protease activity. Downy mildew disease protection studies revealed a strong involvement of Trichoderma spp. in direct suppression of the pathogen (mean 37.41) in the rhizosphere followed by inducing systemic resistance. Our findings highlights the probable distribution and diversity profile of Trichoderma spp. as well as narrate the possible utilization of Trichoderma spp. as microbial fungicides in PM cultivation across different agroclimatic zones of India.
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De Simone N, Capozzi V, Amodio ML, Colelli G, Spano G, Russo P. Microbial-based Biocontrol Solutions for Fruits and Vegetables: Recent Insight, Patents, and Innovative Trends. Recent Pat Food Nutr Agric 2021; 12:3-18. [PMID: 33550980 DOI: 10.2174/2212798412666210125141117] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/25/2020] [Accepted: 12/29/2020] [Indexed: 05/01/2023]
Abstract
BACKGROUND Fruits and vegetables are susceptible to colonisation by undesired microflora, which, in pre- and post-harvest conditions, negatively impact the quality of these products, leading to a reduction of yield, shelf-life, and marketability. In the few last years, the use of microbial Biological Control Agents (BCAs) has assumed international relevance in order to control harmful microorganisms, as a promising alternative to chemical interventions. OBJECTIVE The purpose of this review is to discuss the microbial-based solutions applicable for the biocontrol of the main microbial spoilers, phytopathogens, and human food-borne pathogens affecting fruits and vegetables during their production and storage. RESULTS A comprehensive overview of the scientific literature investigating the effectiveness of BCA-based products available on the market is provided, as well as of the most recent patents protecting biotechnological applications in this field. Innovative trends are discussed, with a particular focus on the integration of BCAs to minimise spoilage phenomena and microbiological risks adopting combined approaches. CONCLUSION This study underlines the growing interest about biocontrol strategies to counteract the growth of spoilage and/or pathogenic microorganisms indicating that in the next years a considerable increase of commercial products and patents will be developed worldwide to exploit innovative biotechnological solutions in the sector.
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Affiliation(s)
- Nicola De Simone
- Department of Agriculture, Food, Natural Resources and Engineering, University of Foggia, Via Napoli 25, Foggia 71122, Italy
| | - Vittorio Capozzi
- Institute of Sciences of Food Production, National Research Council of Italy (CNR), C/O CS-DAT, Via Michele Protano, Foggia 71121, Italy
| | - Maria Luisa Amodio
- Department of Agriculture, Food, Natural Resources and Engineering, University of Foggia, Via Napoli 25, Foggia 71122, Italy
| | - Giancarlo Colelli
- Department of Agriculture, Food, Natural Resources and Engineering, University of Foggia, Via Napoli 25, Foggia 71122, Italy
| | - Giuseppe Spano
- Department of Agriculture, Food, Natural Resources and Engineering, University of Foggia, Via Napoli 25, Foggia 71122, Italy
| | - Pasquale Russo
- Department of Agriculture, Food, Natural Resources and Engineering, University of Foggia, Via Napoli 25, Foggia 71122, Italy
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Control of Penicillium glabrum by Indigenous Antagonistic Yeast from Vineyards. Foods 2020; 9:foods9121864. [PMID: 33327475 PMCID: PMC7764915 DOI: 10.3390/foods9121864] [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: 10/29/2020] [Revised: 12/01/2020] [Accepted: 12/09/2020] [Indexed: 11/17/2022] Open
Abstract
Biocontrol is one of the most promising alternatives to synthetic fungicides for food preservation. Botrytis cinerea, Alternaria alternata, and Aspergillus section Nigri are the most concerning pathogens for grape development. However, frequently, other species, such as Penicillium glabrum in this study, are predominant in spoiled bunches. In this work, 54 native yeasts from vineyards were screened by direct confrontation in potato dextrose agar plates as antagonists against P. glabrum. Isolates of Pichia terricola, Aureobasidium pullulans, and Zygoascus meyerae were selected for their antagonist activity in vitro, plus isolates of Pichia kudriavzevii, Hormonema viticola, and Hanseniaspora uvarum were used as negative controls. However, in vivo, confrontations in wounded grapes showed disagreement with direct confrontation in vitro. P. terricola, P. kudriavzevii, H. viticola, Z. meyerae, and H. uvarum significantly reduced the incidence of P. glabrum on grapes. Nevertheless, P. terricola, H. viticola, and H. uvarum themselves spoiled the wounded grapes. Inhibitions were associated with different mechanisms such as the production of volatile organic compounds (VOCs), lytic enzymes, biofilm formation, and competition for nutrients. The isolates of P. kudriavzevii L18 (a producer of antifungal VOCs which completely inhibited the incidence of P. glabrum) and Z. meyerae L29 (with pectinase, chitinase and β-glucanase activity and biofilm formation which reduced 70% of the incidence of P. glabrum) are proposed as suitable biocontrol agents against P. glabrum.
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12
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Liu J, Sun Z, Zou Y, Li W, He F, Huang X, Lin C, Cai Q, Wisniewski M, Wu X. Pre- and postharvest measures used to control decay and mycotoxigenic fungi in potato ( Solanum tuberosum L.) during storage. Crit Rev Food Sci Nutr 2020; 62:415-428. [PMID: 32924541 DOI: 10.1080/10408398.2020.1818688] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Potato (Solanum tuberosum L.), a worldwide, staple food crop, is susceptible to postharvest rots caused by a variety of fungal pathogens, including Fusarium spp., Alternaria spp., Phytophthora infestans, Helminthosporium solani, Rhizoctonia solani, and Colletotrichum coccodes. Rots resulting from infections by these pathogens cause a significant reduction in potato quality and marketable yield. Importantly, some of these decay fungi also produce mycotoxins that represent a potential risk to human health. In the present review, an overview and discussion are provided on the epidemiology and pathogenesis of decay fungi, especially Fusarium spp., that include recent data derived from genomic and phylogenetic analyses. The biosynthesis and functional role of fungitoxic metabolites such as trichothecene mycotoxins and fusaric acid, produced in rotted potatoes are also reviewed. Advances in pre- and postharvest measures for rot management, especially eco-friendly methods including physical control, biological control, the use of natural compounds, and other agricultural management practices are also reviewed. Lastly, novel approaches to control potato dry rot such as the use of mycoviruses and CRISPR technology are highlighted.
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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, China
| | - Zhiqiang Sun
- Yantai Lvyun Biotechnology Co., Ltd, Yantai, Shandong, China
| | - Yuping Zou
- Yantai Lvyun Biotechnology Co., Ltd, Yantai, Shandong, China
| | - Wenhua Li
- Yantai Lvyun Biotechnology Co., Ltd, Yantai, Shandong, China
| | - Fangyun He
- 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
| | - Xiaoya Huang
- Yantai Lvyun Biotechnology Co., Ltd, Yantai, Shandong, China
| | - Chenglin Lin
- Yantai Lvyun Biotechnology Co., Ltd, Yantai, Shandong, China
| | - Qingnian Cai
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Michael Wisniewski
- Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Xuehong Wu
- College of Plant Protection, China Agricultural University, Beijing, China
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13
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Evaluation of antagonistic activity and mechanisms of endophytic yeasts against pathogenic fungi causing economic crop diseases. Folia Microbiol (Praha) 2019; 65:573-590. [DOI: 10.1007/s12223-019-00764-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 12/06/2019] [Indexed: 12/24/2022]
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14
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Wang S, Ruan C, Yi L, Deng L, Yao S, Zeng K. Biocontrol ability and action mechanism of Metschnikowia citriensis against Geotrichum citri-aurantii causing sour rot of postharvest citrus fruit. Food Microbiol 2019; 87:103375. [PMID: 31948616 DOI: 10.1016/j.fm.2019.103375] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 10/31/2019] [Accepted: 11/05/2019] [Indexed: 02/02/2023]
Abstract
This study investigated the biocontrol efficiency of Metschnikowia citriensis strain FL01 against Geotrichum citri-aurantii, and evaluated possible mechanisms. The results showed that M. citriensis could effectively control the development of sour rot, and significantly inhibit the mycelial growth and spore germination of G. citri-aurantii. The population dynamics results and Scanning electron microscopy (SEM) analysis indicated that M. citriensis could rapidly colonize wounds and tightly adhere to the surface of the wounds to compete with G. citri-aurantii for nutrition and space. M. citriensis also showed the biofilm formation action in vitro. The response of G. citri-aurantii to different components of M. citriensis culture showed that only the yeast cells but not the extracellular metabolites and the volatile organic compounds (VOCs) exhibited inhibitory effect on the growth of G. citri-aurantii. M. citriensis adhered to the hyphae of G. citri-aurantii loosely and sparsely, and the production of lytic enzymes β-1, 3-glucanase (GLU) and Chitinase (CHI) could not be induced by G. citri-auranti. Iron affected the pulcherrimin pigment production and antagonism of M. citriensis indicating iron depletion as the most important antagonistic mechanism. Besides, M. citriensis also induced resistance of fruit against sour rot. These results suggested that M. citriensis could be used as the potential alternative of fungicides to control postharvest pathogens on citrus fruit.
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Affiliation(s)
- Shupei Wang
- College of Food Science, Southwest University, Chongqing, 400715, PR China
| | - Changqing Ruan
- College of Food Science, Southwest University, Chongqing, 400715, PR China; Food Storage and Logistics Research Center, Southwest University, Chongqing, 400715, PR China
| | - Lanhua Yi
- College of Food Science, Southwest University, Chongqing, 400715, PR China; Food Storage and Logistics Research Center, Southwest University, Chongqing, 400715, PR China
| | - Lili Deng
- College of Food Science, Southwest University, Chongqing, 400715, PR China; Food Storage and Logistics Research Center, Southwest University, Chongqing, 400715, PR China
| | - Shixiang Yao
- College of Food Science, Southwest University, Chongqing, 400715, PR China; Food Storage and Logistics Research Center, Southwest University, Chongqing, 400715, PR China
| | - Kaifang Zeng
- College of Food Science, Southwest University, Chongqing, 400715, PR China; Food Storage and Logistics Research Center, Southwest University, Chongqing, 400715, PR China.
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15
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Wu Y, Zhou J, Li C, Ma Y. Antifungal and plant growth promotion activity of volatile organic compounds produced by Bacillus amyloliquefaciens. Microbiologyopen 2019; 8:e00813. [PMID: 30907064 PMCID: PMC6692555 DOI: 10.1002/mbo3.813] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/16/2019] [Accepted: 01/18/2019] [Indexed: 11/17/2022] Open
Abstract
Fusarium wilt of watermelon, caused by F. oxysporum f.sp. niveum (FON), is a devastating disease that causes extensive losses throughout the world. Five bacterial strains (L3, h, β, b, and L) isolated from the watermelon rhizosphere showed antagonistic activity against FON during in vitro tests. Strain L3 produced diffusible and volatile organic compounds (VOCs) which showed the strongest antifungal activity. Arabidopsis thaliana plantlets exposed to VOCs produced by strain L3 showed a 2.39‐fold increase in biomass, 1.40‐fold increase in primary root length, and 5.05‐fold increase in number of lateral roots. Confocal laser scanning microscope showed that the GFP‐labeled strain L3 could colonize along the elongation and differentiation zones of watermelon roots. In greenhouse pot experiments, the biocontrol efficiency of strain L3 against fusarium wilt of watermelon was up to 68.4% in comparison with the control treatment. In addition, inoculation of the strain L3 resulted in a 23.4% increase in plant fresh weight. Based on 16S rDNA sequence analysis, the strain L3 was identified as Bacillus amyloliquefaciens L3. Fourteen VOCs produced by strain L3 were identified through GC‐MS analysis. Of nine VOCs tested, 2‐nonanone and 2‐heptanone were proved to have strong antifungal properties. Acetoin and 2,3‐butanediol were found to promote plant growth. The results suggested B. amyloliquefaciens L3 was a potential biocontrol agent, and that VOCs produced by B. amyloliquefaciens L3 play important roles in the process of biocontrol and plant growth promotion.
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Affiliation(s)
- Yuncheng Wu
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, China.,School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Nottingham, England
| | - Jinyan Zhou
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Chengguo Li
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Yan Ma
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, China
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16
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Biocontrol of Postharvest Fruit Fungal Diseases by Bacterial Antagonists: A Review. AGRONOMY-BASEL 2019. [DOI: 10.3390/agronomy9030121] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This review deals with the main mechanisms of action exerted by antagonistic bacteria, such as competition for space and nutrients, suppression via siderophores, hydrolytic enzymes, antibiosis, biofilm formation, and induction of plant resistance. These mechanisms inhibit phytopathogen growth that affects postharvest fruit since quality and safety parameters are influenced by the action of these microorganisms, which cause production losses in more than 50% of fruit tree species. The use of synthetic fungicide products has been the dominant control strategy for diseases caused by fungi. However, their excessive and inappropriate use in intensive agriculture has brought about problems that have led to environmental contamination, considerable residues in agricultural products, and phytopathogen resistance. Thus, there is a need to generate alternatives that are safe, ecological, and economically viable to face this problem. Phytopathogen inhibition in fruit utilizing antagonist microorganisms has been recognized as a type of biological control (BC), which could represent a viable and environmentally safe alternative to synthetic fungicides. Despite the ecological benefit that derives from the use of controllers and biological control agents (BCA) at a commercial level, their application and efficient use has been minimal at a global level.
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17
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Effect of Ulvan on the Biocontrol Activity of Debaryomyces hansenii and Stenotrophomonas rhizophila against Fruit Rot of Cucumis melo L. AGRONOMY-BASEL 2018. [DOI: 10.3390/agronomy8120273] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
In the present study, the following was investigated: (a) The effect of ulvan on in vivo and in vitro biocontrol of Debaryomyces hansenii and Stenotrophomonas rhizophila against Fusarium proliferaum and (b) the effect of ulvan on in vivo and in vitro growth of D. hansenii and S. rhizophila and muskmelon quality parameters. The results showed that the biocontrol activity of D. hansenii and S. rhizophila could be enhanced by ulvan (5 g/L). The combination of ulvan and S. rhizophila resulted in a more effective control of fruit rot in comparison to fungicide benomyl. On in vitro growth of F. proliferatum, individual treatments of D. hansenii and S. rhizophila inhibited spore germination and mycelial growth with no statistical difference with the combined treatments. Ulvan does not have a direct effect on the in vivo and in vitro growth of D. hansenii and S. rhizophila. Furthermore, the combined treatments improve the natural disease incidence and quality parameters like weight, firmness, total soluble solids (TSS), and pH. These results suggest that the use of ulvan may be an effective method to improve the biological activity of D. hansenii and S. rhizophila.
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18
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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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19
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Rai M, Ingle AP, Paralikar P, Anasane N, Gade R, Ingle P. Effective management of soft rot of ginger caused by Pythium spp. and Fusarium spp.: emerging role of nanotechnology. Appl Microbiol Biotechnol 2018; 102:6827-6839. [PMID: 29948111 DOI: 10.1007/s00253-018-9145-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/27/2018] [Accepted: 05/28/2018] [Indexed: 01/25/2023]
Abstract
Ginger (Zingiber officinale Rosc.) is a tropical plant cultivated all over the world due to its culinary and medicinal properties. It is one of the most important spices commonly used in food, which increases its commercial value. However, soft rot (rhizome rot) is a common disease of ginger caused by fungi such as Pythium and Fusarium spp. It is the most destructive disease of ginger, which can reduce the production by 50 to 90%. Application of chemical fungicides is considered as an effective method to control soft rot of ginger but extensive use of fungicides pose serious risk to environmental and human health. Therefore, the development of ecofriendly and economically viable alternative approaches for effective management of soft rot of ginger such diseases is essentially required. An acceptable approach that is being actively investigated involves nanotechnology, which can potentially be used to control Pythium and Fusarium. The present review is aimed to discuss worldwide status of soft rot associated with ginger, the traditional methods available for the management of Pythium and Fusarium spp. and most importantly, the role of various nanomaterials in the management of soft rot of ginger. Moreover, possible antifungal mechanisms for chemical fungicides, biological agents and nanoparticles have also been discussed.
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Affiliation(s)
- Mahendra Rai
- Nanobiotechnology Laboratory, Department of Biotechnology, SGB Amravati University, Amravati, Maharashtra, 444 602, India.
| | - Avinash P Ingle
- Department of Biotechnology, Engineering School of Lorena, University of Sao Paulo, Lorena, Sao Paulo, Brazil
| | - Priti Paralikar
- Nanobiotechnology Laboratory, Department of Biotechnology, SGB Amravati University, Amravati, Maharashtra, 444 602, India
| | - Netravati Anasane
- Nanobiotechnology Laboratory, Department of Biotechnology, SGB Amravati University, Amravati, Maharashtra, 444 602, India
| | - Rajendra Gade
- Department of Plant Pathology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra, India
| | - Pramod Ingle
- Nanobiotechnology Laboratory, Department of Biotechnology, SGB Amravati University, Amravati, Maharashtra, 444 602, India
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20
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Han L, Pu T, Wang X, Liu B, Wang Y, Feng J, Zhang X. Optimization of a protective medium for enhancing the viability of freeze-dried Bacillus amyloliquefaciens B1408 based on response surface methodology. Cryobiology 2018; 81:101-106. [DOI: 10.1016/j.cryobiol.2018.02.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 01/28/2018] [Accepted: 02/06/2018] [Indexed: 10/18/2022]
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21
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The preservation effect of Metschnikowia pulcherrima yeast on anthracnose of postharvest mango fruits and the possible mechanism. Food Sci Biotechnol 2017; 27:95-105. [PMID: 30263729 DOI: 10.1007/s10068-017-0213-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 09/01/2017] [Accepted: 09/13/2017] [Indexed: 12/21/2022] Open
Abstract
This study aimed to determine the effects of Metschnikowia pulcherrima yeast on storage quality of 'Tainong' mango, and elucidate it's possible anti-disease mechanism. The results showed that M. pulcherrima could inhibit the changes in peel colour, fruit firmness, the contents of total soluble solids, total acid and vitamin C, and maintain the storage quality of mango fruits. An investigation of the mechanism showed that M. pulcherrima competed not only for the primary carbon source, but also for living space with Colletotrichum gloeosporioides. In addition, M. pulcherrima promoted the activities of defence-related enzymes, including ß-1,3-glucanase(GLU) and chitinase (CHT), and secreted a small amount of antimicrobial substances composed of volatile and nonvolatile anti-fungal compounds. The results strongly demonstrated that antagonistic yeast M. pulcherrima could be applied as a biocontrol agent for deducing the spoilage and decay of mango fruit.
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22
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Cordero-Bueso G, Mangieri N, Maghradze D, Foschino R, Valdetara F, Cantoral JM, Vigentini I. Wild Grape-Associated Yeasts as Promising Biocontrol Agents against Vitis vinifera Fungal Pathogens. Front Microbiol 2017; 8:2025. [PMID: 29163377 PMCID: PMC5675894 DOI: 10.3389/fmicb.2017.02025] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 10/04/2017] [Indexed: 01/10/2023] Open
Abstract
The increasing level of hazardous residues in the environment and food chains has led the European Union to restrict the use of chemical fungicides. Thus, exploiting new natural antagonistic microorganisms against fungal diseases could serve the agricultural production to reduce pre- and post-harvest losses, to boost safer practices for workers and to protect the consumers' health. The main aim of this work was to evaluate the antagonistic potential of epiphytic yeasts against Botrytis cinerea, Aspergillus carbonarius, and Penicillium expansum pathogen species. In particular, yeast isolation was carried out from grape berries of Vitis vinifera ssp sylvestris populations, of the Eurasian area, and V. vinifera ssp vinifera cultivars from three different farming systems (organic, biodynamic, and conventional). Strains able to inhibit or slow the growth of pathogens were selected by in vitro and in vivo experiments. The most effective antagonist yeast strains were subsequently assayed for their capability to colonize the grape berries. Finally, possible modes of action, such as nutrients and space competition, iron depletion, cell wall degrading enzymes, diffusible and volatile antimicrobial compounds, and biofilm formation, were investigated as well. Two hundred and thirty-one yeast strains belonging to 26 different species were isolated; 20 of them, ascribed to eight species, showed antagonistic action against all molds. Yeasts isolated from V. vinifera ssp sylvestris were more effective (up to 50%) against B. cinerea rather than those isolated from V. vinifera ssp vinifera. Six strains, all isolated from wild vines, belonging to four species (Meyerozyma guilliermondii, Hanseniaspora uvarum, Hanseniaspora clermontiae, and Pichia kluyveri) revealed one or more phenotypical characteristics associated to the analyzed modes of antagonistic action.
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Affiliation(s)
- Gustavo Cordero-Bueso
- Department of Biomedicine, Biotechnology and Public Health, University of Cádiz, Cádiz, Spain
| | - Nicola Mangieri
- Department of Food, Environmental and Nutritional Sciences, University of Milan, Milan, Italy
| | - David Maghradze
- Department of Viticulture and Enology, Institute of Horticulture, Viticulture and Oenology, Agricultural University of Georgia, Tbilisi, Georgia
| | - Roberto Foschino
- Department of Food, Environmental and Nutritional Sciences, University of Milan, Milan, Italy
| | - Federica Valdetara
- Department of Food, Environmental and Nutritional Sciences, University of Milan, Milan, Italy
| | - Jesús M. Cantoral
- Department of Biomedicine, Biotechnology and Public Health, University of Cádiz, Cádiz, Spain
| | - Ileana Vigentini
- Department of Food, Environmental and Nutritional Sciences, University of Milan, Milan, Italy
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Zhang H, Chen L, Sun Y, Zhao L, Zheng X, Yang Q, Zhang X. Investigating Proteome and Transcriptome Defense Response of Apples Induced by Yarrowia lipolytica. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2017; 30:301-311. [PMID: 28398122 DOI: 10.1094/mpmi-09-16-0189-r] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A better understanding of the mode of action of postharvest biocontrol agents on fruit surfaces is critical for the advancement of successful implementation of postharvest biocontrol products. This is due to the increasing importance of biological control of postharvest diseases over chemical and other control methods. However, most of the mechanisms involved in biological control remain unknown and need to be explored. Yarrowia lipolytica significantly inhibited blue mold decay of apples caused by Penicillium expansum. The findings also demonstrated that Y. lipolytica stimulated the activities of polyphenoloxidase, peroxidase, chitinase, l-phenylalanine ammonia lyase involved in enhancing defense responses in apple fruit tissue. Proteomic and transcriptomic analysis revealed a total of 35 proteins identified as up- and down-regulated in response to the Y. lipolytica inducement. These proteins were related to defense, biotic stimulus, and stress responses, such as pathogenesis-related proteins and dehydrin. The analysis of the transcriptome results proved that the induced resistance was mediated by a crosstalk between salicylic acid (SA) and ethylene/jasmonate (ET/JA) pathways. Y. lipolytica treatment activated the expression of isochorismate synthase gene in the SA pathway, which up-regulates the expression of PR4 in apple. The expression of 1-aminocyclopropane-1-carboxylate oxidase gene and ET-responsive transcription factors 2 and 4, which are involved in the ET pathway, were also activated. In addition, cytochrome oxidase I, which plays an important role in JA signaling for resistance acquisition, was also activated. However, not all of the genes had a positive effect on the SA and ET/JA signal pathways. As transcriptional repressors in JA signaling, TIFY3B and TIFY11B were triggered by the yeast, but the gene expression levels were relatively low. Taken together, Y. lipolytica induced the SA and ET/JA signal mediating the defense pathways by stimulating defense response genes, such as peroxidase, thaumatin-like protein, and chitinase 4-like, which are involved in defense response in apple. [Formula: see text]
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Affiliation(s)
- Hongyin Zhang
- 1 School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, People's Republic of China; and
| | | | - Yiwen Sun
- 1 School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, People's Republic of China; and
| | - Lina Zhao
- 1 School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, People's Republic of China; and
| | - Xiangfeng Zheng
- 1 School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, People's Republic of China; and
| | - Qiya Yang
- 1 School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, People's Republic of China; and
| | - Xiaoyun Zhang
- 1 School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, People's Republic of China; and
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Iris Betsabee OS, José Luis SS, Juan Arturo RS, Montserrat CS. Evaluation of the toxicity and pathogenicity of biocontrol agents in murine models, chicken embryos and dermal irritation in rabbits. Toxicol Res (Camb) 2017; 6:188-198. [PMID: 30090489 PMCID: PMC6060713 DOI: 10.1039/c6tx00275g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 11/04/2016] [Indexed: 11/21/2022] Open
Abstract
Biological control has emerged as an alternative to the use of crop fungicides in fields and postharvest. It has already been demonstrated that strains of Candida famata, Bacillus subtilis Pla10, Meyerozyma guilliermondii, Meyerozyma caribbica and Debaryomyces hansenii are effective in controlling fungal diseases in tropical fruits. However, in order to develop applications on a field-scale, it is necessary to show that these biocontrol agents are innocuous to humans. In this study, three common toxicity studies were carried out to measure the safety of their use in food products: acute oral toxicity in adult Wistar rats, chicken embryo lethality and skin irritation studies in rabbits using concentrations of 1 and 10 mg of microbial extracts and the administration of 3 and 6 × 108 cells per mL of live cells for each one of the tested strains used for each model. The rats showed no toxic symptoms and none died during testing. The extracts and strain cells under study did not produce a life-cycle interruption in chicken embryos. For the skin irritation studies in rabbits, the substance being studied produced no skin alteration in the animals. With these results it was concluded that the lyophilized extracts in concentrations of 1 and 10 mg, as well as the cells of the studied strains in concentrations of 3 and 6 × 108 cells per mL, were safe in the studied models. Therefore, their use in controlling postharvest diseases in tropical fruits is possible. Their efficiency in controlling plagues in fields and their possible effects on humans, however, require further study.
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Affiliation(s)
- Ocampo-Suarez Iris Betsabee
- Laboratorio Integral de Investigación en Alimentos , Instituto Tecnológico de Tepic , Av. Tecnológico 2595 C. P. 63175 , Tepic , Nayarit , México .
| | - Sanchez-Salas José Luis
- Laboratorio de Microbiología y Biología Molecular del Departamento de Ciencias Químico-Biológicas , Universidad de las Américas Puebla , Ex-Hacienda Sta. Catarina Martir , C. P. 72810 , Cholula , Puebla
| | - Ragazzo-Sánchez Juan Arturo
- Laboratorio Integral de Investigación en Alimentos , Instituto Tecnológico de Tepic , Av. Tecnológico 2595 C. P. 63175 , Tepic , Nayarit , México .
| | - Calderón-Santoyo Montserrat
- Laboratorio Integral de Investigación en Alimentos , Instituto Tecnológico de Tepic , Av. Tecnológico 2595 C. P. 63175 , Tepic , Nayarit , México .
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Zhang Z, Chen J, Li B, He C, Chen Y, Tian S. Influence of Oxidative Stress on Biocontrol Activity of Cryptococcus laurentii against Blue Mold on Peach Fruit. Front Microbiol 2017; 8:151. [PMID: 28210254 PMCID: PMC5288387 DOI: 10.3389/fmicb.2017.00151] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 01/20/2017] [Indexed: 01/18/2023] Open
Abstract
The limitations of chemical fungicides for the control of postharvest diseases have recently become more apparent. The utilization of antagonistic microorganisms is a promising alternative to that of fungicides to control postharvest decay. In previous studies, the antagonistic yeast Cryptococcus laurentii has shown excellent effects of biocontrol and great potential for practical application. Adverse conditions, such as oxidative stress, limit the practical application of antagonistic yeast. In this study, we investigated the oxidative stress tolerance of C. laurentii and the associated mechanisms. The results indicated that exogenous oxidative stress has a significant effect on the viability and biocontrol efficiency of C. laurentii. H2O2-induced oxidative stress led to the accumulation of reactive oxygen species. The results of flow cytometric analysis suggested that apoptosis is responsible for the reduced survival rate of C. laurentii under oxidative stress. Using tests of antioxidant activity, we found that C. laurentii could employ enzymatic systems to resist exogenous oxidative stress. The addition of exogenous glutathione, a non-enzymatic antioxidant, to the media can significantly enhance oxidative tolerance and biocontrol efficiency of C. laurentii.
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Affiliation(s)
- Zhanquan Zhang
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of SciencesBeijing, China
| | - Jian Chen
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of SciencesBeijing, China
- College of Life Sciences, University of Chinese Academy of SciencesBeijing, China
| | - Boqiang Li
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of SciencesBeijing, China
| | - Chang He
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of SciencesBeijing, China
- College of Life Sciences, University of Chinese Academy of SciencesBeijing, China
| | - Yong Chen
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of SciencesBeijing, China
- College of Life Sciences, University of Chinese Academy of SciencesBeijing, China
| | - Shiping Tian
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of SciencesBeijing, China
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Sweet cherry: Composition, postharvest preservation, processing and trends for its future use. Trends Food Sci Technol 2016. [DOI: 10.1016/j.tifs.2016.07.002] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Qu H, Zhao L, Zhao F, Liu Y, Yang Z. Biocontrol of Gray Mold Decay in Pear by Bacillus amyloliquefaciens Strain BA3 and its Effect on Postharvest Quality Parameters. Pol J Microbiol 2016; 65:171-176. [DOI: 10.5604/17331331.1204476] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/30/2015] [Indexed: 11/13/2022] Open
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Effects of volatile organic compounds produced by Bacillus amyloliquefaciens on the growth and virulence traits of tomato bacterial wilt pathogen Ralstonia solanacearum. Appl Microbiol Biotechnol 2016; 100:7639-50. [DOI: 10.1007/s00253-016-7584-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 04/24/2016] [Accepted: 04/28/2016] [Indexed: 01/22/2023]
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Liu P, Chen K, Li G, Yang X, Long CA. Comparative transcriptional profiling of orange fruit in response to the biocontrol yeast Kloeckera apiculata and its active compounds. BMC Genomics 2016; 17:17. [PMID: 26725242 PMCID: PMC4698812 DOI: 10.1186/s12864-015-2333-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Accepted: 12/18/2015] [Indexed: 12/16/2022] Open
Abstract
Background The yeast Kloeckera apiculata strain 34–9 is an antagonist that shows biological control activity against the postharvest fungal pathogens of citrus. An antifungal compound, 2-phenylethanol (PEA), has been identified from the extract of K. apiculata. To better understand the molecular processes underlying the response of citrus fruit tissue to K. apiculata, the extract and PEA, microarray analyses were performed on navel oranges using an Affymetrix Citrus GeneChip. Results As many as 801, 339 and 608 differentially expressed genes (DEGs) were identified after the application of K. apiculata, the extract and PEA, respectively. In general, K. apiculata induced the expression of defence-related genes. In addition to chitinase and β-1,3-glucanase, genes involved in ethylene (ET), jasmonic acid (JA), calcium signalling, MAPK signalling and phenylalanine metabolism were induced. In contrast, monodehydroascorbate reductase, superoxide dismutase (SOD), catalase (CAT), peroxidase (POD) and carotenoid biosynthesis genes were down-regulated. The expression profiles for the extract- and PEA-treated samples were similar to that found for yeast (sharing 57.4 % DEGs), with a significant increase in the transcript levels of defence-related genes. Conclusion This study provides a global picture of the gene expression changes in navel oranges after the application of the antagonist yeast K. apiculata, its extract and PEA. The interpretation of the DEGs revealed new insight into the molecular processes that regulate the defence responses in orange tissue. Electronic supplementary material The online version of this article (doi:10.1186/s12864-015-2333-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Pu Liu
- Key Laboratory of Pomology, Anhui Agricultural University, Hefei, 230036, P. R. China. .,Key Laboratory of Horticultural Plant Biology of the Ministry of Education, National Centre of Citrus Breeding, Huazhong Agricultural University, Wuhan, 430070, P. R. China.
| | - Kai Chen
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, National Centre of Citrus Breeding, Huazhong Agricultural University, Wuhan, 430070, P. R. China.
| | - Guofeng Li
- Key Laboratory of Pomology, Anhui Agricultural University, Hefei, 230036, P. R. China.
| | - Xiaoping Yang
- Research Institute of Fruit and Tea, Hubei Academy of Agricultural Science, Wuhan, 430064, P. R. China.
| | - Chao-An Long
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, National Centre of Citrus Breeding, Huazhong Agricultural University, Wuhan, 430070, P. R. China.
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Oro L, Ciani M, Comitini F. Yeasts From Xerophilic Environments Reveal Antimicrobial Action Against Fruit Pathogenic Molds. J Food Saf 2015. [DOI: 10.1111/jfs.12217] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Lucia Oro
- Dipartimento Scienze della Vita e dell'Ambiente; Università Politecnica delle Marche; 60131 Ancona Italy
| | - Maurizio Ciani
- Dipartimento Scienze della Vita e dell'Ambiente; Università Politecnica delle Marche; 60131 Ancona Italy
| | - Francesca Comitini
- Dipartimento Scienze della Vita e dell'Ambiente; Università Politecnica delle Marche; 60131 Ancona Italy
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Hu H, Xu Y, Lu HP, Xiao R, Zheng XD, Yu T. Evaluation of yeasts from Tibetan fermented products as agents for biocontrol of blue mold of Nashi pear fruits. J Zhejiang Univ Sci B 2015; 16:275-85. [PMID: 25845361 PMCID: PMC4399428 DOI: 10.1631/jzus.b1400162] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 12/10/2014] [Indexed: 11/11/2022]
Abstract
A total of 20 strains of yeast isolated from Tibetan fermented products were screened for antagonism against blue mold of pear caused by Penicillium expansum. Six isolates that inhibited incidence of postharvest decay by 35% or more were selected for further screening. Among them, the most effective was Rhodotorula mucilaginosa. The results showed that washed cell suspensions of R. mucilaginosa yielded better antagonistic efficacy than unwashed cell-culture mixtures, cell-free culture filtrates, and autoclaved cell cultures. Biocontrol activity improved with increasing concentrations of incubated cells. The best concentration was 1×10(8) cells/ml, at which the incidence of decay was only 16.7% after 6 d of incubation. The germination of conidia of P. expansum in vitro was significantly inhibited by both washed cell-suspensions and unwashed cell-culture mixtures. Rapid colonization by yeast at different concentrations showed a relationship between yeast-cell concentration and biocontrol activity. Although the titratable acidity of pear fruits increased after treatment, R. mucilaginosa did not affect the total soluble solids or ascorbic acid content. This is the first study to report that the yeast R. mucilaginosa from Tibet Autonomous Region of China may have potential as an antagonist to control the postharvest decay of pear fruits.
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Biocontrol activity of an alkaline serine protease from Aureobasidium pullulans expressed in Pichia pastoris against four postharvest pathogens on apple. Int J Food Microbiol 2014; 182-183:1-8. [PMID: 24854386 DOI: 10.1016/j.ijfoodmicro.2014.05.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 04/16/2014] [Accepted: 05/01/2014] [Indexed: 11/23/2022]
Abstract
The yeast-like fungus Aureobasidium pullulans PL5 is a microbial antagonist against postharvest pathogens of fruits. The strain is able to produce hydrolases, including glucanases, chitinases and proteases. The alkaline serine protease gene ALP5 from A. pullulans was cloned, inserted into the vector pPIC9 to construct pPIC9/ALP5, and then expressed in Pichia pastoris strain KM71. ALP5 had a molecular mass of 42.9kDa after 5days growth with 1% methanol induction at 28°C. The recombinant protease expressed in P. pastoris showed its highest activity under alkaline conditions (at pH10) and a temperature of 50°C. The antifungal activity of the recombinant protease was investigated against Penicillium expansum, Botrytis cinerea, Monilinia fructicola and Alternaria alternata in vitro and on apple. The recombinant protease reduced significantly the spore germination and the germ tube length of the tested pathogens in PDB medium. The highest level of protease efficacy was observed against M. fructicola and B. cinerea, whereas a lower efficacy was observed against P. expansum and A. alternata indicating a possible effect of the pathogen cell wall composition on the proteolytic activity of the recombinant protease. The presence of protease was able to cause the swelling of the hyphae of B. cinerea, under an optical microscope. The recombinant protease expressed in P. pastoris was more active against the pathogens in vitro than the same enzyme expressed in E. coli in previous studies. The efficacy of ALP5 was also evaluated against the pathogens in vivo on cv Golden Delicious apples. The protease was more efficient in controlling M. fructicola, B. cinerea and P. expansum than A. alternata. However, the extent of the activity was dependent on the enzyme concentration and the length of fruit storage. This study demonstrated the capacity of the alkaline serine protease to keep its enzymatic activity for some days in the unfavorable environment of the fruit wounds. The alkaline serine protease could be developed as a postharvest treatment with antimicrobial activity for fruit undergoing a short storage period.
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Tenorio-Salgado S, Tinoco R, Vazquez-Duhalt R, Caballero-Mellado J, Perez-Rueda E. Identification of volatile compounds produced by the bacterium Burkholderia tropica that inhibit the growth of fungal pathogens. Bioengineered 2013; 4:236-43. [PMID: 23680857 PMCID: PMC3728194 DOI: 10.4161/bioe.23808] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
It has been documented that bacteria from the Burkholderia genera produce different kinds of compounds that inhibit plant pathogens, however in Burkholderia tropica, an endophytic diazotrophic and phosphate-solubilizing bacterium isolated from a wide diversity of plants, the capacity to produce antifungal compounds has not been evaluated. In order to expand our knowledge about Burkholderia tropica as a potential biological control agent, we analyzed 15 different strains of this bacterium to evaluate their capacities to inhibit the growth of four phytopathogenic fungi, Colletotrichum gloeosporioides, Fusarium culmorum, Fusarium oxysporum and Sclerotium rolffsi. Diverse analytical techniques, including plant root protection and dish plate growth assays and gas chromatography-mass spectroscopy showed that the fungal growth inhibition was intimately associated with the volatile compounds produced by B. tropica and, in particular, two bacterial strains (MTo293 and TTe203) exhibited the highest radial mycelial growth inhibition. Morphological changes associated with these compounds, such as disruption of fungal hyphae, were identified by using photomicrographic analysis. By using gas chromatography-mass spectroscopy technique, 18 volatile compounds involved in the growth inhibition mechanism were identified, including α-pinene and limonene. In addition, we found a high proportion of bacterial strains that produced siderophores during growth with different carbon sources, such as alanine and glutamic acid; however, their roles in the antagonism mechanism remain unclear.
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Lutz MC, Lopes CA, Rodriguez ME, Sosa MC, Sangorrín MP. Efficacy and putative mode of action of native and commercial antagonistic yeasts against postharvest pathogens of pear. Int J Food Microbiol 2013; 164:166-72. [DOI: 10.1016/j.ijfoodmicro.2013.04.005] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Revised: 03/26/2013] [Accepted: 04/08/2013] [Indexed: 11/25/2022]
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Hershkovitz V, Sela N, Taha-Salaime L, Liu J, Rafael G, Kessler C, Aly R, Levy M, Wisniewski M, Droby S. De-novo assembly and characterization of the transcriptome of Metschnikowia fructicola reveals differences in gene expression following interaction with Penicillium digitatum and grapefruit peel. BMC Genomics 2013; 14:168. [PMID: 23496978 PMCID: PMC3608080 DOI: 10.1186/1471-2164-14-168] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Accepted: 02/25/2013] [Indexed: 11/11/2022] Open
Abstract
Background The yeast Metschnikowia fructicola is an antagonist with biological control activity against postharvest diseases of several fruits. We performed a transcriptome analysis, using RNA-Seq technology, to examine the response of M. fructicola with citrus fruit and with the postharvest pathogen, Penicillium digitatum. Results More than 26 million sequencing reads were assembled into 9,674 unigenes. Approximately 50% of the unigenes could be annotated based on homology matches in the NCBI database. Based on homology, sequences were annotated with a gene description, gene ontology (GO term), and clustered into functional groups. An analysis of differential expression when the yeast was interacting with the fruit vs. the pathogen revealed more than 250 genes with specific expression responses. In the antagonist-pathogen interaction, genes related to transmembrane, multidrug transport and to amino acid metabolism were induced. In the antagonist-fruit interaction, expression of genes involved in oxidative stress, iron homeostasis, zinc homeostasis, and lipid metabolism were induced. Patterns of gene expression in the two interactions were examined at the individual transcript level by quantitative real-time PCR analysis (RT-qPCR). Conclusion This study provides new insight into the biology of the tritrophic interactions that occur in a biocontrol system such as the use of the yeast, M. fructicola for the control of green mold on citrus caused by P. digitatum.
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Affiliation(s)
- Vera Hershkovitz
- Department of Postharvest and Food Sciences, ARO, the Volcani Center, Bet Dagan, 50250, Israel
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Sui Y, Liu J, Wisniewski M, Droby S, Norelli J, Hershkovitz V. Pretreatment of the yeast antagonist, Candida oleophila, with glycine betaine increases oxidative stress tolerance in the microenvironment of apple wounds. Int J Food Microbiol 2012; 157:45-51. [DOI: 10.1016/j.ijfoodmicro.2012.04.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Revised: 04/10/2012] [Accepted: 04/15/2012] [Indexed: 12/31/2022]
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37
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Zhi-Lin Y, Yi-Cun C, Bai-Ge X, Chu-Long Z. Current perspectives on the volatile-producing fungal endophytes. Crit Rev Biotechnol 2012; 32:363-73. [PMID: 22458418 DOI: 10.3109/07388551.2011.651429] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Microbial-derived volatiles are ubiquitous in the environment and actively engaged in bio-communication with other organisms. Recently, some volatile-producing endophytes (VPEs), cryptic fungal symbionts persisting in healthy plant tissues, have attracted great attention due to their strong antibiotic activity or production of carbon chains that are identical to many of those found in petroleum, while other fragrant volatiles can be used in the flavoring industries. From an application-oriented and biotechnological point of view, these findings show significant promise for sustainable development of agriculture, forestry, and industry, especially in the control of fruit postharvest diseases, soil-borne pathogen management, and bio-fuel production. In comparison, the ecological importance of VPEs has only rarely been addressed and warrants further exploration. In this review, we summarize the current knowledge and future directions in this fascinating research field, and also highlight the constraints and progresses towards commercialization of VPEs products.
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Affiliation(s)
- Yuan Zhi-Lin
- Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, Zhejiang Province, 311400, China.
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