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Saberi Riseh R, Gholizadeh Vazvani M, Vatankhah M, Kennedy JF. Chitin-induced disease resistance in plants: A review. Int J Biol Macromol 2024; 266:131105. [PMID: 38531527 DOI: 10.1016/j.ijbiomac.2024.131105] [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: 12/08/2023] [Revised: 03/15/2024] [Accepted: 03/21/2024] [Indexed: 03/28/2024]
Abstract
Chitin is composed of N-acetylglucosamine units. Chitin a polysaccharide found in the cell walls of fungi and exoskeletons of insects and crustaceans, can elicit a potent defense response in plants. Through the activation of defense genes, stimulation of defensive compound production, and reinforcement of physical barriers, chitin enhances the plant's ability to defend against pathogens. Chitin-based treatments have shown efficacy against various plant diseases caused by fungal, bacterial, viral, and nematode pathogens, and have been integrated into sustainable agricultural practices. Furthermore, chitin treatments have demonstrated additional benefits, such as promoting plant growth and improving tolerance to abiotic stresses. Further research is necessary to optimize treatment parameters, explore chitin derivatives, and conduct long-term field studies. Continued efforts in these areas will contribute to the development of innovative and sustainable strategies for disease management in agriculture, ultimately leading to improved crop productivity and reduced reliance on chemical pesticides.
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Affiliation(s)
- Roohallah Saberi Riseh
- Department of Plant Protection, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, 7718897111 Rafsanjan, Iran.
| | - Mozhgan Gholizadeh Vazvani
- Department of Plant Protection, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, 7718897111 Rafsanjan, Iran
| | - Masoumeh Vatankhah
- Department of Plant Protection, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, 7718897111 Rafsanjan, Iran
| | - John F Kennedy
- Chembiotech Laboratories Ltd, WR15 8FF Tenbury Wells, United Kingdom.
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2
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Martínez-Zavala SA, Ortiz-Rodríguez T, Salcedo-Hernández R, Casados-Vázquez LE, Del Rincón-Castro MC, Bideshi DK, Barboza-Corona JE. The chitin-binding domain of Bacillus thuringiensis ChiA74 inhibits gram-negative bacterial and fungal pathogens of humans and plants. Int J Biol Macromol 2024; 254:128049. [PMID: 37963502 DOI: 10.1016/j.ijbiomac.2023.128049] [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: 08/03/2023] [Revised: 11/07/2023] [Accepted: 11/10/2023] [Indexed: 11/16/2023]
Abstract
The chitinase ChiA74 is synthesized by Bacillus thuringiensis and possesses a modular organization composed of four domains. In the C-terminal of the enzyme is located the chitin-binding domain (CBD), which has not been isolated as a single unit or characterized. Here, we aimed to isolate the ChiA74's CBD as a single unit, determine the binding properties, and evaluate its antimicrobial and hemolytic activities. We cloned the ChiA74's CBD and expressed it in Escherichia coli BL21. The single domain was purified, analyzed by SDS-PAGE, and characterized. The recombinant CBD (rCBD) showed a molecular mass of ∼14 kDa and binds strongly to α-chitin, with Kd and Bmax of ∼4.7 ± 0.9 μM and 1.5 ± 0.1 μmoles/g chitin, respectively. Besides, the binding potential (Bmax/Kd) was stronger for α-chitin (∼0.31) than microcrystalline cellulose (∼0.19). It was also shown that the purified rCBD inhibited the growth of the clinically relevant Gram-negative bacteria (GNB) Vibrio cholerae, and V. parahemolyticus CVP2 with minimum inhibitory concentrations (MICs) of 121 ± 9.9 and 138 ± 3.2 μg/mL, respectively, and of one of the most common GNB plant pathogens, Pseudomonas syringae with a MIC of 230 ± 13.8 μg/mL. In addition, the rCBD possessed antifungal activity inhibiting the conidia germination of Fusarium oxysporum (MIC = 192 ± 37.5 μg/mL) and lacked hemolytic and agglutination activities against human erythrocytes. The significance of this work lies in the fact that data provided here show for the first time that ChiA74's CBD from B. thuringiensis has antimicrobial activity, suggesting its potential use against significant pathogenic microorganisms. Future works will be focused on testing the inhibitory effect against other pathogenic microorganisms and elucidating the mechanism of action.
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Affiliation(s)
- Sheila A Martínez-Zavala
- Graduate Program in Biosciences, Life Science Division, University of Guanajuato Campus Irapuato-Salamanca, Irapuato, Guanajuato 36500, México
| | - Tomás Ortiz-Rodríguez
- Graduate Program in Biosciences, Life Science Division, University of Guanajuato Campus Irapuato-Salamanca, Irapuato, Guanajuato 36500, México
| | - Rubén Salcedo-Hernández
- Graduate Program in Biosciences, Life Science Division, University of Guanajuato Campus Irapuato-Salamanca, Irapuato, Guanajuato 36500, México
| | - Luz E Casados-Vázquez
- Graduate Program in Biosciences, Life Science Division, University of Guanajuato Campus Irapuato-Salamanca, Irapuato, Guanajuato 36500, México; Food Department, Life Science Division, University of Guanajuato Campus Irapuato-Salamanca, Irapuato, Guanajuato 36500, México; CONACyT-University of Guanajuato, México
| | - Ma Cristina Del Rincón-Castro
- Graduate Program in Biosciences, Life Science Division, University of Guanajuato Campus Irapuato-Salamanca, Irapuato, Guanajuato 36500, México; Food Department, Life Science Division, University of Guanajuato Campus Irapuato-Salamanca, Irapuato, Guanajuato 36500, México
| | - Dennis K Bideshi
- Department of Biological Sciences, Program in Biomedical Sciences, California Baptist University, Riverside, CA, United States of America
| | - José E Barboza-Corona
- Graduate Program in Biosciences, Life Science Division, University of Guanajuato Campus Irapuato-Salamanca, Irapuato, Guanajuato 36500, México; Food Department, Life Science Division, University of Guanajuato Campus Irapuato-Salamanca, Irapuato, Guanajuato 36500, México.
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3
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Aoki H, Nakatsuka-Mori T, Ueno Y, Nabeshima Y, Oyama H. Analysis of functional ingredients of tempe-like fermented Moringa oleifera seeds (Moringa tempe) prepared with Rhizopus species. J Biosci Bioeng 2023; 135:306-312. [PMID: 36803861 DOI: 10.1016/j.jbiosc.2023.01.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 01/23/2023] [Accepted: 01/27/2023] [Indexed: 02/18/2023]
Abstract
Tempe is a fermented food prepared by fermenting soybeans with Rhizopus species. However, there have recently been concerns about the stable supply of raw soybeans due to global warming and other factors. Moringa is a plant whose cultivation area is expected to expand in the future, and its seeds contain abundant proteins and lipids, and thus could be used as an alternative to soybeans. To develop a novel functional Moringa food, we fermented dehulled Moringa seeds with Rhizopus oligosporus and Rhizopus stolonifer using the solid fermentation method of tempe and investigated changes in the functional components, such as free amino acids and polyphenols, of the respective obtained Moringa tempe Rm and Rs. After 45 h of fermentation, the total content of free amino acids, mainly including gamma-aminobutyric acid and l-glutamic acid, in Moringa tempe Rm was about three times higher, while that in Moringa tempe Rs was almost the same, compared to that in unfermented Moringa seeds. Moreover, after 70 h of fermentation, both Moringa tempe Rm and Rs had approximately four times higher polyphenol content and significantly higher antioxidant activity than did unfermented Moringa seeds. Further, the content of each residual chitin-binding protein of defatted Moringa tempe Rm and Rs was almost the same as that of unfermented Moringa seeds. Taken together, Moringa tempe was rich in free amino acids and polyphenols, exhibited better antioxidant activity, and retained the levels of its chitin-binding proteins, suggesting that Moringa seeds could be used as an alternative to soybean for tempe preparation.
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Affiliation(s)
- Hideyuki Aoki
- Research Laboratory, Ikeda Food Research Co., Ltd., Fukuyama, Hiroshima 721-0956, Japan
| | - Tomoko Nakatsuka-Mori
- Research Laboratory, Ikeda Food Research Co., Ltd., Fukuyama, Hiroshima 721-0956, Japan
| | - Yoshie Ueno
- Kyoto College of Nutritional and Medical Sciences, Kyoto 616-8376, Japan
| | - Yuka Nabeshima
- Department of Life Science, Faculty of Science and Engineering, Setsunan University, Neyagawa, Osaka 572-8508, Japan
| | - Hiroshi Oyama
- Department of Life Science, Faculty of Science and Engineering, Setsunan University, Neyagawa, Osaka 572-8508, Japan.
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4
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da Silva Neto JX, Dias LP, Lopes de Souza LA, Silva da Costa HP, Vasconcelos IM, Pereira ML, de Oliveira JTA, Cardozo CJP, Gonçalves Moura LFW, de Sousa JS, Carneiro RF, Lopes TDP, Bezerra de Sousa DDO. Insights into the structure and mechanism of action of the anti-candidal lectin Mo-CBP2 and evaluation of its synergistic effect and antibiofilm activity. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Isolation and characterization of Bacillus amyloliquefaciens MQ01, a bifunctional biocontrol bacterium with antagonistic activity against Fusarium graminearum and biodegradation capacity of zearalenone. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108259] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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6
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Ahmadu T, Ahmad K, Ismail SI, Rashed O, Asib N, Omar D. Antifungal efficacy of Moringa oleifera leaf and seed extracts against Botrytis cinerea causing gray mold disease of tomato (Solanum lycopersicum L.). BRAZ J BIOL 2020; 81:1007-1022. [PMID: 33175006 DOI: 10.1590/1519-6984.233173] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 08/20/2020] [Indexed: 11/22/2022] Open
Abstract
Drawbacks associated with the use of chemical fungicides to control plant pathogenic fungi such as Botrytis cinerea stimulate the need for alternatives. Therefore, the present study was carried out to determine the antifungal potentials of Moringa oleifera extracts against B. cinerea. Phytochemical analysis using qualitative chemical tests revealed the presence of huge amount of crucial phytochemicals compounds like phenolic compounds, alkaloids and saponins in the M. oleifera leaf extract. Antifungal bioassay of the crude extracts indicated better mycelial growth inhibition by methanol leaf extract (99%). The minimum inhibitory concentration (MIC) was 5 mg/ml with 100% spore germination inhibition and minimum fungicidal concentration (MFC) was 10 mg/ml with 98.10% mycelial growth inhibition using broth micro dilution and poisoned food techniques. Gas chromatography-mass spectrometry (GC-MS) analysis led to the identification of 67 volatile chemical compounds in the leaf extract with 6-decenoic acid (Z)- (19.87%) was the predominant compound. Further chemical elucidation of the crude extracts performed by liquid chromatography with tandem mass spectrometry (LC-MS/MS) showed the presence of non-volatile chemical compounds, mostly flavones, flavonoids and phenolic acids (i.e. quercetin and kaempferol). Scanning electron microscopy and transmission electron microscopy analysis showed positive effect of M. oleifera leaf extract on the treated conidia and mycelium of B. cinerea. Findings revealed that irreversible surface and ultra-structural changes with severe detrimental effects on conidia and mycelium morphology compared to control treatment. Overall findings suggested that M. oleifera leaf extract is a promising candidate for biological control of fungal pathogens, thus limiting overdependence on chemical fungicides.
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Affiliation(s)
- T Ahmadu
- Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor Darul Ehsan, Malaysia
| | - K Ahmad
- Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor Darul Ehsan, Malaysia.,Institute of Plantation Studies - IKP, Universiti Putra Malaysia, Serdang, Selangor Darul Ehsan, Malaysia.,Institute of Tropical Agriculture and Food Security - ITAFoS, Universiti Putra Malaysia, Serdang, Selangor Darul Ehsan, Malaysia
| | - S I Ismail
- Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor Darul Ehsan, Malaysia
| | - O Rashed
- Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor Darul Ehsan, Malaysia
| | - N Asib
- Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor Darul Ehsan, Malaysia
| | - D Omar
- Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor Darul Ehsan, Malaysia
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7
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Shokouhi D, Seifi A. Organic extracts of seeds of Iranian Moringa peregrina as promising selective biofungicide to control Mycogone perniciosa. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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8
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Sousa AJ, Souza PF, Gifoni JM, Dias LP, Freitas CD, Oliveira JT, Sousa DO, Vasconcelos IM. Scanning electron microscopy reveals deleterious effects of Moringa oleifera seed exuded proteins on root-knot nematode Meloidogyne incognita eggs. Int J Biol Macromol 2020; 154:1237-1244. [DOI: 10.1016/j.ijbiomac.2019.10.278] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/21/2019] [Accepted: 10/31/2019] [Indexed: 12/21/2022]
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9
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Lima PG, Souza PF, Freitas CD, Oliveira JT, Dias LP, Neto JX, Vasconcelos IM, Lopes JL, Sousa DO. Anticandidal activity of synthetic peptides: Mechanism of action revealed by scanning electron and fluorescence microscopies and synergism effect with nystatin. J Pept Sci 2020; 26:e3249. [DOI: 10.1002/psc.3249] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 02/28/2020] [Accepted: 03/04/2020] [Indexed: 12/28/2022]
Affiliation(s)
- Patrícia G. Lima
- Department of Biochemistry and Molecular BiologyFederal University of Ceará Fortaleza Brazil
| | - Pedro F.N. Souza
- Department of Biochemistry and Molecular BiologyFederal University of Ceará Fortaleza Brazil
| | - Cleverson D.T. Freitas
- Department of Biochemistry and Molecular BiologyFederal University of Ceará Fortaleza Brazil
| | - Jose T.A. Oliveira
- Department of Biochemistry and Molecular BiologyFederal University of Ceará Fortaleza Brazil
| | - Lucas P. Dias
- Department of Biochemistry and Molecular BiologyFederal University of Ceará Fortaleza Brazil
| | - João X.S. Neto
- Department of Biochemistry and Molecular BiologyFederal University of Ceará Fortaleza Brazil
| | - Ilka M. Vasconcelos
- Department of Biochemistry and Molecular BiologyFederal University of Ceará Fortaleza Brazil
| | - José L.S. Lopes
- Department of Applied PhysicsUniversity of Sao Paulo Sao Paulo Brazil
| | - Daniele O.B. Sousa
- Department of Biochemistry and Molecular BiologyFederal University of Ceará Fortaleza Brazil
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10
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Sousa AMP, Salles HO, Oliveira HDD, Souza BBPD, Cardozo Filho JDL, Sifuentes DN, Prates MV, Bloch Junior C, Bemquerer MP, Egito ASD. Mo-HLPs: New flocculating agents identified from Moringa oleifera seeds belong to the hevein-like peptide family. J Proteomics 2020; 217:103692. [PMID: 32068186 DOI: 10.1016/j.jprot.2020.103692] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 02/08/2020] [Accepted: 02/14/2020] [Indexed: 12/25/2022]
Abstract
Cationic peptides found in Moringa oleifera seeds belong to different protein families and are described as the main flocculating agents of the species. In this study we report the identification and isolation of four new flocculant peptides, called Mo-HLPs 1-4, belonging to the family of hevein-like peptides, previously only known for their members' antimicrobial activity. Purification of the peptides followed two sequential membrane ultrafiltration steps and separation by reverse-phase liquid chromatography. Proteomic analyses showed that Mo-HLPs are extremely basic (pI >10) cysteine-rich molecules with molecular masses between 4.5 and 4.8 kDa and with a highly conserved chitin-binding domain. Searches in BLAST revealed high similarity of Mo-HLPs with hevein and other hevein-like peptides and 90% identity with morintides, which are members of the 8C-hevein-like subfamily found in M. oleifera leaves. Mo-HLPs microflocculation assays showed distinct coagulation/flocculation efficiencies, promoting turbidity reduction levels between 67 and 89% in synthetic turbid water. Activity variations were attributed to the substitution of some amino acids among the isoforms, which may have altered the final net charge of the molecules. The identification of Mo-HLPs represents the discovery of a new group of cationic peptides involved in the flocculation properties of M. oleifera seeds. SIGNIFICANCE: The study reveals the presence of hevein-like peptides in Moringa oleifera seeds. It is reported for the first time that members of this family have properties to act as flocculating agents of importance for water treatment processes. The identification of these peptides as well as new functional assignment broadens the horizon for speculation on new species which could act as sources of green coagulants for sustainable water treatment, and contributes to the knowledge about occurrence, distribution, molecular and active diversity of peptides belonging to the hevein-like family.
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Affiliation(s)
- Ana Márjory Paiva Sousa
- Rede Nordeste de Biotecnologia-RENORBIO, Universidade Estadual do Ceará, Campus do Itaperi, CEP: 60714-903 Fortaleza, CE, Brazil; Laboratório de Bioquímica, Embrapa Caprinos e Ovinos, Estrada Sobral-Groaíras, Km 4, CP 71, CEP: 62010-970 Sobral, CE, Brazil.
| | - Hévila Oliveira Salles
- Laboratório de Bioquímica, Embrapa Caprinos e Ovinos, Estrada Sobral-Groaíras, Km 4, CP 71, CEP: 62010-970 Sobral, CE, Brazil
| | - Hermógenes David de Oliveira
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici Prof. Prisco Bezerra, CEP: 60440-900 Fortaleza, CE, Brazil
| | - Beatriz Blenda Pinheiro de Souza
- Laboratório de Espectrometria de Massa, Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, CEP: 70770-901 Brasília, DF, Brazil
| | - José de Lima Cardozo Filho
- Laboratório de Espectrometria de Massa, Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, CEP: 70770-901 Brasília, DF, Brazil
| | - Daniel Nogoceke Sifuentes
- Laboratório de Espectrometria de Massa, Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, CEP: 70770-901 Brasília, DF, Brazil
| | - Maura Vianna Prates
- Laboratório de Espectrometria de Massa, Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, CEP: 70770-901 Brasília, DF, Brazil
| | - Carlos Bloch Junior
- Laboratório de Espectrometria de Massa, Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, CEP: 70770-901 Brasília, DF, Brazil
| | - Marcelo Porto Bemquerer
- Laboratório de Espectrometria de Massa, Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, CEP: 70770-901 Brasília, DF, Brazil
| | - Antonio Silvio do Egito
- Laboratório de Bioquímica, Embrapa Caprinos e Ovinos, Estrada Sobral-Groaíras, Km 4, CP 71, CEP: 62010-970 Sobral, CE, Brazil
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11
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Lopes TDP, Souza PFN, da Costa HPS, Pereira ML, da Silva Neto JX, de Paula PC, Brilhante RSN, Oliveira JTA, Vasconcelos IM, Sousa DOB. Mo-CBP 4, a purified chitin-binding protein from Moringa oleifera seeds, is a potent antidermatophytic protein: In vitro mechanisms of action, in vivo effect against infection, and clinical application as a hydrogel for skin infection. Int J Biol Macromol 2020; 149:432-442. [PMID: 32004601 DOI: 10.1016/j.ijbiomac.2020.01.257] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/09/2020] [Accepted: 01/25/2020] [Indexed: 12/29/2022]
Abstract
Dermatophytes belonging to Trichophyton ssp. are important anthropophilic and zoophilic pathogens, which developed resistance to griseofulvin, the common antifungal drug used to treat dermatophytosis. In this context, Moringa oleifera seed proteins have been described as antifungal agents with potential applications. Thus, this work aimed to evaluate the antidermatophytic in vitro, focusing on mechanisms, and in vivo potential of Mo-CBP4, purified from M. oleifera seeds. Mo-CBP4was purified after protein extraction with 50 mM Tris-HCl buffer, pH 8.0, and chromatography on chitin and CM Sepharose™ columns and antidermatophytic potential of Mo-CBP4 evaluated in vitro and in vivo. In vitro, Mo-CBP4 reduced in 50% the germination of microconidia of Trichophyton mentagrophytes at 45 μM; but did not show inhibition of mycelial growth. Mo-CBP4 (45 μM) presents the inhibitory activity even when incubated with N-acetyl-d-glucosamine (NAG). Analysis of the mechanisms of Mo-CBP4 revealed an increase in membrane permeability, ROS overproduction and damage to cell wall leading to microconidia death. Furthermore, using in vivo models, Mo-CBP4 (5, 10 and 20 mg g-1) reduced the severity and time of dermatophytosis. Altogether, these findings indicate that Mo-CBP4 has great potential for the development of novel antifungal drugs for the clinical treatment of dermatophytosis.
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Affiliation(s)
| | - Pedro Filho Noronha Souza
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | - Mirella Leite Pereira
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - João Xavier da Silva Neto
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Paulo Carvalho de Paula
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | - Jose Tadeu Abreu Oliveira
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Ilka Maria Vasconcelos
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, Brazil
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12
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da Silva Neto JX, da Costa HPS, Vasconcelos IM, Pereira ML, Oliveira JTA, Lopes TDP, Dias LP, Araújo NMS, Moura LFWG, Van Tilburg MF, Guedes MIF, Lopes LA, Morais EG, de Oliveira Bezerra de Sousa D. Role of membrane sterol and redox system in the anti-candida activity reported for Mo-CBP 2, a protein from Moringa oleifera seeds. Int J Biol Macromol 2020; 143:814-824. [PMID: 31734363 DOI: 10.1016/j.ijbiomac.2019.09.142] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/19/2019] [Accepted: 09/20/2019] [Indexed: 12/12/2022]
Abstract
Plant proteins are emerging as an alternative to conventional treatments against candidiasis. The aim of this study was to better understand the mechanism of action of Mo-CBP2 against Candida spp, evaluating redox system activity, lipid peroxidation, DNA degradation, cytochrome c release, medium acidification, and membrane interaction. Anti-candida activity of Mo-CBP2 decreased in the presence of ergosterol, which was not observed with antioxidant agents. C. albicans treated with Mo-CBP2 also had catalase and peroxidase activities inhibited, while superoxide dismutase was increased. Mo-CBP2 increased the lipid peroxidation, but it did not alter the ergosterol profile in live cells. External medium acidification was strongly inhibited, and cytochrome c release and DNA degradation were detected. Mo-CBP2 interacts with cell membrane constituents, changes redox system enzymes in C. albicans and causes lipid peroxidation by ROS overproduction. DNA degradation and cytochrome c release suggest apoptotic or DNAse activity. Lipid peroxidation and H+-ATPases inhibition may induce the process of apoptosis. Finally, Mo-CBP2 did not have a cytotoxic effect in mammalian Vero cells. This study highlights the biotechnological potential of Mo-CBP2 as a promising molecule with low toxicity and potent activity. Further studies should be performed to better understand its mode of action and toxicity.
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Affiliation(s)
- João Xavier da Silva Neto
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Ilka Maria Vasconcelos
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Jose Tadeu Abreu Oliveira
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Lucas Pinheiro Dias
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | | | - Mauricio Fraga Van Tilburg
- Northeast Biotechnology Network, Graduate Program of Biotechnology, State University of Ceará, Fortaleza, CE, Brazil
| | - Maria Izabel Florindo Guedes
- Northeast Biotechnology Network, Graduate Program of Biotechnology, State University of Ceará, Fortaleza, CE, Brazil
| | - Larissa Alves Lopes
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Eva Gomes Morais
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
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13
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Samineni L, Xiong B, Chowdhury R, Pei A, Kuehster L, Wang H, Dickey R, Soto PE, Massenburg L, Nguyen TH, Maranas C, Velegol D, Kumar M, Velegol S. 7 Log Virus Removal in a Simple Functionalized Sand Filter. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:12706-12714. [PMID: 31593449 DOI: 10.1021/acs.est.9b03734] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Viral contamination of drinking water due to fecal contamination is difficult to detect and treat effectively, leading to frequent outbreaks worldwide. The purpose of this paper is to report on the molecular mechanism for unprecedented high virus removal from a practical sand filter. Sand filters functionalized using a water extract of Moringa oleifera (MO) seeds, functionalized sand (f-sand) filters, achieved a ∼7 log10 virus removal. These tests were conducted with MS2 bacteriophage, a recognized surrogate for pathogenic norovirus and rotavirus. We studied the molecular mechanism of this high removal since it can have important implications for sand filtration, the most common water treatment technology worldwide. Our data reveal that the virus removal activity of f-sand is due to the presence of a chitin-binding protein, M. oleifera chitin-binding protein (MoCBP) on f-sand. Standard column experiments were supported by proteomic analysis and molecular docking simulations. Our simulations show that MoCBP binds preferentially to MS2 capsid proteins demonstrating that specific molecular interactions are responsible for enhanced virus removal. In addition, we simplified the process of making f-sand and evinced how it could be regenerated using saline water. At present, no definitive solution exists for the challenge of treating fecally contaminated drinking and irrigation water for viruses without using technologies that demand high energy or chemical consumption. We propose functionalized sand (f-sand) filters as a highly effective, energy-efficient, and practical technology for virus removal applicable to both developing and developed countries.
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Affiliation(s)
| | | | | | | | - Louise Kuehster
- School of Chemical, Biological, and Materials Engineering , University of Oklahoma , Norman , Oklahoma 73019-1004 , United States
| | | | | | | | | | - Thanh H Nguyen
- Department of Civil and Environmental Engineering , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| | | | | | - Manish Kumar
- Department of Civil and Environmental Engineering , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
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14
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Khademi M, Nazarian‐Firouzabadi F, Ismaili A, Shirzadian Khorramabad R. Targeting microbial pathogens by expression of new recombinant dermaseptin peptides in tobacco. Microbiologyopen 2019; 8:e837. [PMID: 30912302 PMCID: PMC6854847 DOI: 10.1002/mbo3.837] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 02/28/2019] [Accepted: 02/28/2019] [Indexed: 01/19/2023] Open
Abstract
Dermaseptin B1 (DrsB1), an antimicrobial cationic 31 amino acid peptide, is produced by Phyllomedusa bicolor. In an attempt to enhance the antimicrobial efficacy of DrsB1, the DrsB1 encoding 93 bp sequence was either fused to the N or C terminus of sequence encoding chitin-binding domain (CBD) of Avr4 gene from Cladosporium fulvum. Tobacco leaf disk explants were inoculated with Agrobacterium rhizogenes harboring pGSA/CBD-DrsB1 and pGSA/DrsB1-CBD expression vectors to produce hairy roots (HRs). Polymerase chain reaction (PCR) was employed to screen putative transgenic tobacco lines. Semi-quantitative RT-PCR and western blotting analysis indicated that the expression of recombinant genes were significantly higher, and recombinant proteins were produced in transgenic HRs. The recombinant proteins were extracted from the tobacco HRs and used against Pectobacterium carotovorum, Agrobacterium tumefaciens, Ralstonia solanacearum, and Xanthomonas campestris pathogenic bacteria and Alternaria alternata and Pythium sp. fungi. Two recombinant proteins had a statistically significant (p < 0.01) inhibitory effect on the growth and development of plant pathogens. The CBD-DrsB1 recombinant protein demonstrated a higher antibacterial effect, whereas the DrsB1-CBD recombinant protein demonstrated greater antifungal activity. Scanning electron microscopy images revealed that the structure of the fungal mycelia appeared segmented, adhered to each other, and crushed following the antimicrobial activity of the recombinant proteins. Due to the high antimicrobial activity of the recombinant proteins against plant pathogens, this strategy can be used to generate stable transgenic crop plants resistant to devastating plant pathogens.
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Affiliation(s)
- Mitra Khademi
- Agronomy and Plant Breeding Department, Faculty of AgricultureLorestan UniversityKhorramabadIran
| | | | - Ahmad Ismaili
- Agronomy and Plant Breeding Department, Faculty of AgricultureLorestan UniversityKhorramabadIran
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15
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Moulin M, Mossou E, Signor L, Kieffer-Jaquinod S, Kwaambwa H, Nermark F, Gutfreund P, Mitchell E, Haertlein M, Forsyth V, Rennie A. Towards a molecular understanding of the water purification properties of Moringa seed proteins. J Colloid Interface Sci 2019; 554:296-304. [DOI: 10.1016/j.jcis.2019.06.071] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/19/2019] [Accepted: 06/20/2019] [Indexed: 10/26/2022]
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16
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Wong JH, Ng TB, Wang H, Cheung RCF, Ng CCW, Ye X, Yang J, Liu F, Ling C, Chan K, Ye X, Chan WY. Antifungal Proteins with Antiproliferative Activity on Cancer Cells and HIV-1 Enzyme Inhibitory Activity from Medicinal Plants and Medicinal Fungi. Curr Protein Pept Sci 2019; 20:265-276. [PMID: 29895244 DOI: 10.2174/1389203719666180613085704] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 04/10/2018] [Accepted: 05/23/2018] [Indexed: 12/13/2022]
Abstract
A variety of fungi, plants, and their different tissues are used in Traditional Chinese Medicine to improve health, and some of them are recommended for dietary therapy. Many of these plants and fungi contain antifungal proteins and peptides which suppress spore germination and hyphal growth in phytopathogenic fungi. The aim of this article is to review antifungal proteins produced by medicinal plants and fungi used in Chinese medicine which also possess anticancer and human immunodeficiency virus-1 (HIV-1) enzyme inhibitory activities.
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Affiliation(s)
- Jack Ho Wong
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Tzi Bun Ng
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Hexiang Wang
- State Key Laboratory for Agrobiotechnology and Department of Microbiology, China Agricultural University, Beijing, China
| | - Randy Chi Fai Cheung
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Charlene Cheuk Wing Ng
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiuyun Ye
- National Engineering Laboratory for High-Efficiency Enzyme Expression and College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian, China
| | - Jie Yang
- National Engineering Laboratory for High-Efficiency Enzyme Expression and College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian, China
| | - Fang Liu
- Department of Microbiology, Nankai University, Tianjin, China
| | - Chen Ling
- Division of Cellular and Molecular Therapy, Department of Pediatrics, University of Florida College of Medicine, Gainesville, Florida 32611, FL, United States
| | - Ki Chan
- Biomedical and Tissue Engineering Research Group, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, China
| | - Xiujuan Ye
- Key Laboratory of Plant Virology of Fujian Province, Institute of Plant Virology, and Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Wai Yee Chan
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
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17
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Freire JEC, Moreno FBMB, Monteiro-Júnior JE, Sousa AJS, Vasconcelos IM, Oliveira JTA, Monteiro-Moreira ACO, Rocha BAM, Grangeiro TB. Mo-CBP 3, a 2S albumin from Moringa oleifera, is a complex mixture of isoforms that arise from different post-translational modifications. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 140:68-77. [PMID: 31085448 DOI: 10.1016/j.plaphy.2019.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 05/01/2019] [Accepted: 05/02/2019] [Indexed: 06/09/2023]
Abstract
Mo-CBP3 is a chitin-binding 2S albumin from Moringa oleifera. This seed storage protein is resistant to thermal denaturation and shows biological activities that might be of practical use, such as antifungal properties against Candida sp., a pathogen that causes candidiasis, and against Fusarium solani, a soil fungus that can cause diseases in plants and humans. Previous work has demonstrated that Mo-CBP3 is a mixture of isoforms encoded by members of a small multigene family. Mature Mo-CBP3 is a small protein (∼14 kDa), constituted by a small chain of approximately 4 kDa and a large chain of 8 kDa, which are held together by disulfide bridges. However, a more comprehensive picture on the spectrum of Mo-CBP3 isoforms which are found in mature seeds, is still lacking. In this work, genomic DNA fragments were obtained from M. oleifera leaves, cloned and completely sequenced, thus revealing new genes encoding Mo-CBP3. Moreover, mass spectrometry analysis showed that the mature protein is a complex mixture of isoforms with a remarkable number of molecular mass variants. Using computational predictions and calculations, most (∼86%) of the experimentally determined masses were assigned to amino acid sequences deduced from DNA fragments. The results suggested that the complex mixture of Mo-CBP3 isoforms originates from proteins encoded by closely related genes, whose products undergo different combinations of distinct post-translational modifications, including cleavage at the N- and C-terminal ends of both subunits, cyclization of N-terminal Gln, as well as Pro hydroxylation, Ser/Thr phosphorylation, and Met oxidation.
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Affiliation(s)
- José E C Freire
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brazil
| | - Frederico B M B Moreno
- Núcleo de Biologia Experimental, Centro de Ciências da Saúde, Universidade de Fortaleza, Fortaleza, CE, 60810-431, Brazil
| | | | - Antônio J S Sousa
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brazil
| | - Ilka M Vasconcelos
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brazil
| | - José T A Oliveira
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brazil
| | - Ana C O Monteiro-Moreira
- Núcleo de Biologia Experimental, Centro de Ciências da Saúde, Universidade de Fortaleza, Fortaleza, CE, 60810-431, Brazil
| | - Bruno A M Rocha
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brazil
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18
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Garcia TB, Soares AA, Costa JH, Costa HPS, Neto JXS, Rocha-Bezerra LCB, Silva FDA, Arantes MR, Sousa DOB, Vasconcelos IM, Oliveira JTA. Gene expression and spatiotemporal localization of antifungal chitin-binding proteins during Moringa oleifera seed development and germination. PLANTA 2019; 249:1503-1519. [PMID: 30706136 DOI: 10.1007/s00425-019-03103-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 01/29/2019] [Indexed: 06/09/2023]
Abstract
Chitin-binding proteins behave as storage and antifungal proteins in the seeds of Moringa oleifera. Moringa oleifera is a tropical multipurpose tree. Its seed constituents possess coagulant, bactericidal, fungicidal, and insecticidal properties. Some of these properties are attributed to a group of polypeptides denominated M. oleifera chitin-binding proteins (in short, Mo-CBPs). Within this group, Mo-CBP2, Mo-CBP3, and Mo-CBP4 were previously purified to homogeneity. They showed high amino acid similarity with the 2S albumin storage proteins. These proteins also presented antimicrobial activity against human pathogenic yeast and phytopathogenic fungi. In the present study, the localization and expression of genes that encode Mo-CBPs and the biosynthesis and degradation of the corresponding proteins during morphogenesis and maturation of M. oleifera seeds at 15, 30, 60, and 90 days after anthesis (DAA) and germination, respectively, were assessed. The Mo-CBP transcripts and corresponding proteins were not detected at 15 and 30 days after anthesis (DAA). However, they accumulated at the latter stages of seed maturation (60 and 90 DAA), reaching the maximum level at 60 DAA. The degradation kinetics of Mo-CBPs during seed germination by in situ immunolocalization revealed a reduction in the protein content 48 h after sowing (HAS). Moreover, Mo-CBPs isolated from seeds at 60 and 90 DAA prevented the spore germination of Fusarium spp. Taken together, these results suggest that Mo-CBPs play a dual role as storage and defense proteins in the seeds of M. oleifera.
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Affiliation(s)
- Tarcymara B Garcia
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, CE, 60440-900, Brazil
| | - Arlete A Soares
- Department of Biology, Federal University of Ceara, Fortaleza, CE, 60440-900, Brazil
| | - Jose H Costa
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, CE, 60440-900, Brazil
| | - Helen P S Costa
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, CE, 60440-900, Brazil
| | - João X S Neto
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, CE, 60440-900, Brazil
| | | | - Fredy Davi A Silva
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, CE, 60440-900, Brazil
| | - Mariana R Arantes
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, CE, 60440-900, Brazil
| | - Daniele O B Sousa
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, CE, 60440-900, Brazil
| | - Ilka M Vasconcelos
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, CE, 60440-900, Brazil.
| | - Jose T A Oliveira
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, CE, 60440-900, Brazil.
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19
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Oliveira JTA, Souza PFN, Vasconcelos IM, Dias LP, Martins TF, Van Tilburg MF, Guedes MIF, Sousa DOB. Mo-CBP 3-PepI, Mo-CBP 3-PepII, and Mo-CBP 3-PepIII are synthetic antimicrobial peptides active against human pathogens by stimulating ROS generation and increasing plasma membrane permeability. Biochimie 2018; 157:10-21. [PMID: 30389515 DOI: 10.1016/j.biochi.2018.10.016] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 10/23/2018] [Indexed: 12/28/2022]
Abstract
The efficiency of current antimicrobial drugs is noticeably decreasing and thus the development of new treatments is necessary. Natural and synthetic antimicrobial peptides (AMPs) have attracted great attention as promising candidates. Inspired on Mo-CBP3, an antimicrobial protein from Moringa oleifera seeds, we designed and synthesized three AMPs named Mo-CBP3-PepI, Mo-CBP3-PepII, and Mo-CBP3-PepIII. All these three peptides inhibited the growth of Candida species and pathogenic bacteria, penetrate into microbial cells, but none is hemolytic or toxic to human cells. Mo-CBP3-PepIII, particularly, showed the strongest antimicrobial activity against Staphylococcus aureus and Candida species, important human pathogens. Additionally, Mo-CBP3-PepIII did not exhibit hemolytic or toxic activity to mammalian cells, but increased Staphylococcus aureus plasma membrane permeabilization. In Candida parapsilosis, Mo-CBP3-PepIII induced pore formation in the plasma membrane and overproduction of reactive oxygen species. Bioinformatics analysis suggested that Mo-CBP3-PepIII is resistant to pepsin digestion and other proteolytic enzymes present in the intestinal environment, which opens the possibility of oral delivery in future treatments. Together, these results suggest that Mo-CBP3-PepIII has great potential as an antimicrobial agent against the bacterium S. aureus and the fungi C. parapsilosis.
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Affiliation(s)
- Jose T A Oliveira
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, Ceara, 60451, Brazil.
| | - Pedro F N Souza
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, Ceara, 60451, Brazil; Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA.
| | - Ilka M Vasconcelos
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, Ceara, 60451, Brazil
| | - Lucas P Dias
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, Ceara, 60451, Brazil
| | - Thiago F Martins
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, Ceara, 60451, Brazil
| | | | - Maria I F Guedes
- Department of Biotechnology, State University of Ceara (UECE), Ceara, 60741, Brazil
| | - Daniele O B Sousa
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, Ceara, 60451, Brazil
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20
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Saucedo-Pompa S, Torres-Castillo J, Castro-López C, Rojas R, Sánchez-Alejo E, Ngangyo-Heya M, Martínez-Ávila G. Moringa plants: Bioactive compounds and promising applications in food products. Food Res Int 2018; 111:438-450. [DOI: 10.1016/j.foodres.2018.05.062] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 05/01/2018] [Accepted: 05/24/2018] [Indexed: 02/06/2023]
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21
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Licá ICL, Soares AMDS, de Mesquita LSS, Malik S. Biological properties and pharmacological potential of plant exudates. Food Res Int 2018; 105:1039-1053. [DOI: 10.1016/j.foodres.2017.11.051] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 11/16/2017] [Accepted: 11/19/2017] [Indexed: 01/27/2023]
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22
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Bryksa BC, Yada RY. Protein Structure Insights into the Bilayer Interactions of the Saposin-Like Domain of Solanum tuberosum Aspartic Protease. Sci Rep 2017; 7:16911. [PMID: 29208977 PMCID: PMC5717070 DOI: 10.1038/s41598-017-16734-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 11/16/2017] [Indexed: 12/26/2022] Open
Abstract
Many plant aspartic proteases contain a saposin-like domain whose principal functions are intracellular sorting and host defence. Its structure is characterised by helical segments cross-linked by three highly conserved cystines. The present study on the saposin-like domain of Solanum tuberosum aspartic protease revealed that acidification from inactive to active conditions causes dimerisation and a strand-to-helix secondary structure transition independent of bilayer interaction. Bilayer fusion was shown to occur under reducing conditions yielding a faster shift to larger vesicle sizes relative to native conditions, implying that a lower level structural motif might be bilayer-active. Characterisation of peptide sequences based on the domain’s secondary structural regions showed helix-3 to be active (~4% of the full domain’s activity), and mutation of its sole positively charged residue resulted in loss of activity and disordering of structure. Also, the peptides’ respective circular dichroism spectra suggested that native folding within the full domain is dependent on surrounding structure. Overall, the present study reveals that the aspartic protease saposin-like domain active structure is an open saposin fold dimer whose formation is pH-dependent, and that a bilayer-active motif shared among non-saposin membrane-active proteins including certain plant defence proteins is nested within an overall structure essential for native functionality.
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Affiliation(s)
- Brian C Bryksa
- Ontario Agricultural College, University of Guelph, N1G 2W1, Guelph, Ontario, Canada
| | - Rickey Y Yada
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, V6T 1Z4, British Columbia, Canada.
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23
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Neto JXS, Pereira ML, Oliveira JTA, Rocha-Bezerra LCB, Lopes TDP, Costa HPS, Sousa DOB, Rocha BAM, Grangeiro TB, Freire JEC, Monteiro-Moreira ACO, Lobo MDP, Brilhante RSN, Vasconcelos IM. A Chitin-binding Protein Purified from Moringa oleifera Seeds Presents Anticandidal Activity by Increasing Cell Membrane Permeability and Reactive Oxygen Species Production. Front Microbiol 2017. [PMID: 28634471 PMCID: PMC5459921 DOI: 10.3389/fmicb.2017.00980] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Candida species are opportunistic pathogens that infect immunocompromised and/or immunosuppressed patients, particularly in hospital facilities, that besides representing a significant threat to health increase the risk of mortality. Apart from echinocandins and triazoles, which are well tolerated, most of the antifungal drugs used for candidiasis treatment can cause side effects and lead to the development of resistant strains. A promising alternative to the conventional treatments is the use of plant proteins. M. oleifera Lam. is a plant with valuable medicinal properties, including antimicrobial activity. This work aimed to purify a chitin-binding protein from M. oleifera seeds and to evaluate its antifungal properties against Candida species. The purified protein, named Mo-CBP2, represented about 0.2% of the total seed protein and appeared as a single band on native PAGE. By mass spectrometry, Mo-CBP2 presented 13,309 Da. However, by SDS-PAGE, Mo-CBP2 migrated as a single band with an apparent molecular mass of 23,400 Da. Tricine-SDS-PAGE of Mo-CBP2 under reduced conditions revealed two protein bands with apparent molecular masses of 7,900 and 4,600 Da. Altogether, these results suggest that Mo-CBP2 exists in different oligomeric forms. Moreover, Mo-CBP2 is a basic glycoprotein (pI 10.9) with 4.1% (m/m) sugar and it did not display hemagglutinating and hemolytic activities upon rabbit and human erythrocytes. A comparative analysis of the sequence of triptic peptides from Mo-CBP2 in solution, after LC-ESI-MS/MS, revealed similarity with other M. oleifera proteins, as the 2S albumin Mo-CBP3 and flocculating proteins, and 2S albumins from different species. Mo-CBP2 possesses in vitro antifungal activity against Candida albicans, C. parapsilosis, C. krusei, and C. tropicalis, with MIC50 and MIC90 values ranging between 9.45–37.90 and 155.84–260.29 μM, respectively. In addition, Mo-CBP2 (18.90 μM) increased the cell membrane permeabilization and reactive oxygen species production in C. albicans and promoted degradation of circular plasmid DNA (pUC18) from Escherichia coli. The data presented in this study highlight the potential use of Mo-CBP2 as an anticandidal agent, based on its ability to inhibit Candida spp. growth with apparently low toxicity on mammalian cells.
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Affiliation(s)
- João X S Neto
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | - Mirella L Pereira
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | - Jose T A Oliveira
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | - Lady C B Rocha-Bezerra
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | - Tiago D P Lopes
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | - Helen P S Costa
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | - Daniele O B Sousa
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | - Bruno A M Rocha
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | | | - José E C Freire
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | | | - Marina D P Lobo
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil.,School of Pharmacy, University of FortalezaFortaleza, Brazil
| | - Raimunda S N Brilhante
- Department of Pathology and Legal Medicine, Federal University of CearaFortaleza, Brazil
| | - Ilka M Vasconcelos
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
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24
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Landim PGC, Correia TO, Silva FD, Nepomuceno DR, Costa HP, Pereira HM, Lobo MD, Moreno FB, Brandão-Neto J, Medeiros SC, Vasconcelos IM, Oliveira JT, Sousa BL, Barroso-Neto IL, Freire VN, Carvalho CP, Monteiro-Moreira AC, Grangeiro TB. Production in Pichia pastoris, antifungal activity and crystal structure of a class I chitinase from cowpea (Vigna unguiculata): Insights into sugar binding mode and hydrolytic action. Biochimie 2017; 135:89-103. [DOI: 10.1016/j.biochi.2017.01.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 01/27/2017] [Indexed: 02/02/2023]
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25
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Paula PC, Sousa DOB, Oliveira JTA, Carvalho AFU, Alves BGT, Pereira ML, Farias DF, Viana MP, Santos FA, Morais TC, Vasconcelos IM. A Protein Isolate from Moringa oleifera Leaves Has Hypoglycemic and Antioxidant Effects in Alloxan-Induced Diabetic Mice. Molecules 2017; 22:E271. [PMID: 28208654 PMCID: PMC6155657 DOI: 10.3390/molecules22020271] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 02/07/2017] [Accepted: 02/09/2017] [Indexed: 01/24/2023] Open
Abstract
Moringa oleifera has been used in traditional medicine to treat diabetes. However, few studies have been conducted to relate its antidiabetic properties to proteins. In this study, a leaf protein isolate was obtained from M. oleifera leaves, named Mo-LPI, and the hypoglycemic and antioxidant effects on alloxan-induced diabetic mice were assessed. Mo-LPI was obtained by aqueous extraction, ammonium sulphate precipitation and dialysis. The electrophoresis profile and proteolytic hydrolysis confirmed its protein nature. Mo-LPI showed hemagglutinating activity, cross-reaction with anti-insulin antibodies and precipitation after zinc addition. Single-dose intraperitoneal (i.p.) administration of Mo-LPI (500 mg/kg·bw) reduced the blood glucose level (reductions of 34.3%, 60.9% and 66.4% after 1, 3 and 5 h, respectively). The effect of Mo-LPI was also evidenced in the repeated dose test with a 56.2% reduction in the blood glucose level on the 7th day after i.p. administration. Mo-LPI did not stimulate insulin secretion in diabetic mice. Mo-LPI was also effective in reducing the oxidative stress in diabetic mice by a decrease in malondialdehyde level and increase in catalase activity. Mo-LPI (2500 mg/kg·bw) did not cause acute toxicity to mice. Mo-LPI is a promising alternative or complementary agent to treat diabetes.
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Affiliation(s)
- Paulo C Paula
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
| | - Daniele O B Sousa
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
| | - Jose T A Oliveira
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
| | - Ana F U Carvalho
- Department of Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
| | - Bella G T Alves
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
| | - Mirella L Pereira
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
| | - Davi F Farias
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
- Department of Molecular Biology, Federal University of Paraiba, Joao Pessoa 58051-900, Brazil.
| | - Martonio P Viana
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
| | - Flavia A Santos
- Department of Physiology and Pharmacology, Federal University of Ceara, Fortaleza 60430-160, Brazil.
| | - Talita C Morais
- Department of Physiology and Pharmacology, Federal University of Ceara, Fortaleza 60430-160, Brazil.
| | - Ilka M Vasconcelos
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
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Anudeep S, Prasanna VK, Adya SM, Radha C. Characterization of soluble dietary fiber from Moringa oleifera seeds and its immunomodulatory effects. Int J Biol Macromol 2016; 91:656-62. [DOI: 10.1016/j.ijbiomac.2016.06.013] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/01/2016] [Accepted: 06/06/2016] [Indexed: 12/01/2022]
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Crystal structure of mature 2S albumin from Moringa oleifera seeds. Biochem Biophys Res Commun 2015; 468:365-71. [PMID: 26505799 DOI: 10.1016/j.bbrc.2015.10.087] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 10/17/2015] [Indexed: 11/21/2022]
Abstract
2S albumins, the seed storage proteins, are the primary sources of carbon and nitrogen and are involved in plant defense. The mature form of Moringa oleifera (M. oleifera), a chitin binding protein isoform 3-1 (mMo-CBP3-1) a thermostable antifungal, antibacterial, flocculating 2S albumin is widely used for the treatment of water and is potentially interesting for the development of both antifungal drugs and transgenic crops. The crystal structure of mMo-CBP3-1 determined at 1.7 Å resolution demonstrated that it is comprised of two proteolytically processed α-helical chains, stabilized by four disulfide bridges that is stable, resistant to pH changes and has a melting temperature (TM) of approximately 98 °C. The surface arginines and the polyglutamine motif are the key structural factors for the observed flocculating, antibacterial and antifungal activities. This represents the first crystal structure of a 2S albumin and the model of the pro-protein indicates the structural changes that occur upon formation of mMo-CBP3-1 and determines the structural motif and charge distribution patterns for the diverse observed activities.
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Pinto CEM, Farias DF, Carvalho AFU, Oliveira JTA, Pereira ML, Grangeiro TB, Freire JEC, Viana DA, Vasconcelos IM. Food safety assessment of an antifungal protein from Moringa oleifera seeds in an agricultural biotechnology perspective. Food Chem Toxicol 2015; 83:1-9. [PMID: 26032632 DOI: 10.1016/j.fct.2015.05.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 05/15/2015] [Accepted: 05/21/2015] [Indexed: 10/23/2022]
Abstract
Mo-CBP3 is an antifungal protein produced by Moringa oleifera which has been investigated as potential candidate for developing transgenic crops. Before the use of novel proteins, food safety tests must be conducted. This work represents an early food safety assessment of Mo-CBP3, using the two-tiered approach proposed by ILSI. The history of safe use, mode of action and results for amino acid sequence homology using the full-length and short contiguous amino acids sequences indicate low risk associated to this protein. Mo-CBP3 isoforms presented a reasonable number of alignments (>35% identity) with allergens in a window of 80 amino acids. This protein was resistant to pepsin degradation up to 2 h, but it was susceptible to digestion using pancreatin. Many positive attributes were presented for Mo-CBP3. However, this protein showed high sequence homology with allergens and resistance to pepsin digestion that indicates that further hypothesis-based testing on its potential allergenicity must be done. Additionally, animal toxicity evaluations (e.g. acute and repeated dose oral exposure assays) must be performed to meet the mandatory requirements of several regulatory agencies. Finally, the approach adopted here exemplified the importance of performing an early risk assessment of candidate proteins for use in plant transformation programs.
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Affiliation(s)
- Clidia E M Pinto
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Campus do Pici, 60440-900, Fortaleza, CE, Brazil
| | - Davi F Farias
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Campus do Pici, 60440-900, Fortaleza, CE, Brazil.
| | - Ana F U Carvalho
- Department of Biology, Federal University of Ceará, Campus do Pici, 60440-900, Fortaleza, CE, Brazil
| | - José T A Oliveira
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Campus do Pici, 60440-900, Fortaleza, CE, Brazil
| | - Mirella L Pereira
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Campus do Pici, 60440-900, Fortaleza, CE, Brazil
| | - Thalles B Grangeiro
- Department of Biology, Federal University of Ceará, Campus do Pici, 60440-900, Fortaleza, CE, Brazil
| | - José E C Freire
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Campus do Pici, 60440-900, Fortaleza, CE, Brazil
| | - Daniel A Viana
- State University of Ceará, Campus do Itaperi, 60740-903, Fortaleza, CE, Brazil
| | - Ilka M Vasconcelos
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Campus do Pici, 60440-900, Fortaleza, CE, Brazil.
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Yan J, Yuan SS, Jiang LL, Ye XJ, Ng TB, Wu ZJ. Plant antifungal proteins and their applications in agriculture. Appl Microbiol Biotechnol 2015; 99:4961-81. [PMID: 25971197 DOI: 10.1007/s00253-015-6654-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 04/26/2015] [Accepted: 04/27/2015] [Indexed: 11/24/2022]
Abstract
Fungi are far more complex organisms than viruses or bacteria and can develop numerous diseases in plants that cause loss of a substantial portion of the crop every year. Plants have developed various mechanisms to defend themselves against these fungi which include the production of low-molecular-weight secondary metabolites and proteins and peptides with antifungal activity. In this review, families of plant antifungal proteins (AFPs) including defensins, lectins, and several others will be summarized. Moreover, the application of AFPs in agriculture will also be analyzed.
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Affiliation(s)
- Juan Yan
- Key Laboratory of Plant Virology of Fujian Province, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350002, China,
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Monteiro S, Carreira A, Freitas R, Pinheiro AM, Ferreira RB. A nontoxic polypeptide oligomer with a fungicide potency under agricultural conditions which is equal or greater than that of their chemical counterparts. PLoS One 2015; 10:e0122095. [PMID: 25849076 PMCID: PMC4388547 DOI: 10.1371/journal.pone.0122095] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 02/17/2015] [Indexed: 11/26/2022] Open
Abstract
There are literally hundreds of polypeptides described in the literature which exhibit fungicide activity. Tens of them have had attempted protection by patent applications but none, as far as we are aware, have found application under real agricultural conditions. The reasons behind may be multiple where the sensitivity to the Sun UV radiation can come in first place. Here we describe a multifunctional glyco-oligomer with 210 kDa which is mainly composed by a 20 kDa polypeptide termed Blad that has been previously shown to be a stable intermediary product of β-conglutin catabolism. This oligomer accumulates exclusively in the cotyledons of Lupinus species, between days 4 and 12 after the onset of germination. Blad-oligomer reveals a plethora of biochemical properties, like lectin and catalytic activities, which are not unusual per si, but are remarkable when found to coexist in the same protein molecule. With this vast range of chemical characteristics, antifungal activity arises almost as a natural consequence. The biological significance and potential technological applications of Blad-oligomer as a plant fungicide to agriculture, its uniqueness stems from being of polypeptidic in nature, and with efficacies which are either equal or greater than the top fungicides currently in the market are addressed.
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Affiliation(s)
- Sara Monteiro
- Centro de Botânica Aplicada à Agricultura, Instituto Superior de Agronomia, Universidade de Lisboa, Lisboa, Portugal
- Converde, SA, Biocant-Park, Cantanhede, Portugal
- * E-mail:
| | | | - Regina Freitas
- Centro de Botânica Aplicada à Agricultura, Instituto Superior de Agronomia, Universidade de Lisboa, Lisboa, Portugal
| | - Ana Margarida Pinheiro
- Centro de Botânica Aplicada à Agricultura, Instituto Superior de Agronomia, Universidade de Lisboa, Lisboa, Portugal
| | - Ricardo Boavida Ferreira
- Centro de Botânica Aplicada à Agricultura, Instituto Superior de Agronomia, Universidade de Lisboa, Lisboa, Portugal
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Oeiras, Portugal
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Freire JEC, Vasconcelos IM, Moreno FBMB, Batista AB, Lobo MDP, Pereira ML, Lima JPMS, Almeida RVM, Sousa AJS, Monteiro-Moreira ACO, Oliveira JTA, Grangeiro TB. Mo-CBP3, an antifungal chitin-binding protein from Moringa oleifera seeds, is a member of the 2S albumin family. PLoS One 2015; 10:e0119871. [PMID: 25789746 PMCID: PMC4366206 DOI: 10.1371/journal.pone.0119871] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 02/03/2015] [Indexed: 11/19/2022] Open
Abstract
Mo-CBP3 is a chitin-binding protein from M. oleifera seeds that inhibits the germination and mycelial growth of phytopathogenic fungi. This protein is highly thermostable and resistant to pH changes, and therefore may be useful in the development of new antifungal drugs. However, the relationship of MoCBP3 with the known families of carbohydrate-binding domains has not been established. In the present study, full-length cDNAs encoding 4 isoforms of Mo-CBP3 (Mo-CBP3-1, Mo-CBP3-2, Mo-CBP3-3 and Mo-CBP3-4) were cloned from developing seeds. The polypeptides encoded by the Mo-CBP3 cDNAs were predicted to contain 160 (Mo-CBP3-3) and 163 amino acid residues (Mo-CBP3-1, Mo-CBP3-2 and Mo-CBP3-4) with a signal peptide of 20-residues at the N-terminal region. A comparative analysis of the deduced amino acid sequences revealed that Mo-CBP3 is a typical member of the 2S albumin family, as shown by the presence of an eight-cysteine motif, which is a characteristic feature of the prolamin superfamily. Furthermore, mass spectrometry analysis demonstrated that Mo-CBP3 is a mixture of isoforms that correspond to different mRNA products. The identification of Mo-CBP3 as a genuine member of the 2S albumin family reinforces the hypothesis that these seed storage proteins are involved in plant defense. Moreover, the chitin-binding ability of Mo-CBP3 reveals a novel functionality for a typical 2S albumin.
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Affiliation(s)
- José E. C. Freire
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Ilka M. Vasconcelos
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | | | - Adelina B. Batista
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Marina D. P. Lobo
- Núcleo de Biologia Experimental, Universidade de Fortaleza, Fortaleza, Ceará, Brazil
| | - Mirella L. Pereira
- Departamento de Biologia, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - João P. M. S. Lima
- Instituto de Medicina Tropical (IMT-RN), Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Ricardo V. M. Almeida
- Instituto de Medicina Tropical (IMT-RN), Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Antônio J. S. Sousa
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | | | - José T. A. Oliveira
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Thalles B. Grangeiro
- Departamento de Biologia, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
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Batista AB, Oliveira JTA, Gifoni JM, Pereira ML, Almeida MGG, Gomes VM, Da Cunha M, Ribeiro SFF, Dias GB, Beltramini LM, Lopes JLS, Grangeiro TB, Vasconcelos IM. New insights into the structure and mode of action of Mo-CBP3, an antifungal chitin-binding protein of Moringa oleifera seeds. PLoS One 2014; 9:e111427. [PMID: 25347074 PMCID: PMC4210214 DOI: 10.1371/journal.pone.0111427] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Accepted: 09/27/2014] [Indexed: 11/18/2022] Open
Abstract
Mo-CBP3 is a chitin-binding protein purified from Moringa oleifera Lam. seeds that displays inhibitory activity against phytopathogenic fungi. This study investigated the structural properties and the antifungal mode of action of this protein. To this end, circular dichroism spectroscopy, antifungal assays, measurements of the production of reactive oxygen species and microscopic analyses were utilized. Mo-CBP3 is composed of 30.3% α-helices, 16.3% β-sheets, 22.3% turns and 30.4% unordered forms. The Mo-CBP3 structure is highly stable and retains its antifungal activity regardless of temperature and pH. Fusarium solani was used as a model organism for studying the mechanisms by which this protein acts as an antifungal agent. Mo-CBP3 significantly inhibited spore germination and mycelial growth at 0.05 mg.mL-1. Mo-CBP3 has both fungistatic and fungicidal effects, depending on the concentration used. Binding of Mo-CBP3 to the fungal cell surface is achieved, at least in part, via electrostatic interactions, as salt was able to reduce its inhibitory effect. Mo-CBP3 induced the production of ROS and caused disorganization of both the cytoplasm and the plasma membrane in F. solani cells. Based on its high stability and specific toxicity, with broad-spectrum efficacy against important phytopathogenic fungi at low inhibitory concentrations but not to human cells, Mo-CBP3 has great potential for the development of new antifungal drugs or transgenic crops with enhanced resistance to phytopathogens.
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Affiliation(s)
- Adelina B. Batista
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - José T. A. Oliveira
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Juliana M. Gifoni
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Mirella L. Pereira
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Marina G. G. Almeida
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Valdirene M. Gomes
- Bioscience and Biotecnology Center, State University of North Fluminense, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Maura Da Cunha
- Bioscience and Biotecnology Center, State University of North Fluminense, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Suzanna F. F. Ribeiro
- Bioscience and Biotecnology Center, State University of North Fluminense, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Germana B. Dias
- Bioscience and Biotecnology Center, State University of North Fluminense, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Leila M. Beltramini
- Physics Institute of São Carlos, University of São Paulo, São Carlos, São Paulo, Brazil
| | - José Luiz S. Lopes
- Physics Institute of São Carlos, University of São Paulo, São Carlos, São Paulo, Brazil
| | | | - Ilka M. Vasconcelos
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, Brazil
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34
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Franco OL, Santos NC. Peptides from agribusiness to human health. Biopolymers 2012. [DOI: 10.1002/bip.22113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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