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Espinosa Bernal MA, Mena Navarro MP, Arvizu Gómez JL, Saldaña C, Ramos López MÁ, Amaro Reyes A, Escamilla García M, Pacheco Aguilar JR, Moreno VP, Rodríguez Morales JA, Álvarez Hidalgo E, Nuñez Ramírez J, Hernández Flores JL, Campos Guillén J. Biocontrol Activity of Bacillus altitudinis CH05 and Bacillus tropicus CH13 Isolated from Capsicum annuum L. Seeds against Fungal Strains. Microorganisms 2024; 12:1943. [PMID: 39458253 PMCID: PMC11509363 DOI: 10.3390/microorganisms12101943] [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: 08/26/2024] [Revised: 09/21/2024] [Accepted: 09/23/2024] [Indexed: 10/28/2024] Open
Abstract
In this study, seed-surface-associated bacteria from fresh fruits of Capsicum spp. were analyzed to explore potential isolates for biocontrol of phytopathogenic fungal strains. A total of 76 bacterial isolates were obtained from three different species of chili pepper (C. annuum L., C. pubescens R. & P., and C. chinense Jacq.), and two isolates were selected via mycelial growth inhibition assays based on their production of volatile organic compounds (VOCs) against six fungal strains. Genomic analysis identified these isolates as Bacillus altitudinis CH05, with a chromosome size of 3,687,823 bp and with 41.25% G+C, and Bacillus tropicus CH13, with a chromosome size of 5,283,706 bp and with 35.24% G+C. Both bacterial strains showed high mycelial growth inhibition capacities against Sclerotium rolfsii, Sclerotinia sp., Rhizoctonia solani, and Alternaria alternata but lower inhibition capacities against Colletotrichum gloesporoides and Fusarium oxysporum. VOC identification was carried out after 24 h of fermentation with 64 VOCs for B. altitudinis CH05 and 53 VOCs for B. tropicus CH13. 2,5-Dimethyl pyrazine and acetoin had the highest relative abundance values in both bacterial strains. Our findings revealed that seed-surface-associated bacteria on Capsicum spp. have the metabolic ability to produce VOCs for biocontrol of fungal strains and have the potential to be used in sustainable agriculture.
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Affiliation(s)
- Merle Ariadna Espinosa Bernal
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Querétaro, Mexico; (M.A.E.B.); (M.P.M.N.); (M.Á.R.L.); (A.A.R.); (M.E.G.); (J.R.P.A.); (V.P.M.); (E.Á.H.); (J.N.R.)
| | - Mayra Paola Mena Navarro
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Querétaro, Mexico; (M.A.E.B.); (M.P.M.N.); (M.Á.R.L.); (A.A.R.); (M.E.G.); (J.R.P.A.); (V.P.M.); (E.Á.H.); (J.N.R.)
| | - Jackeline Lizzeta Arvizu Gómez
- Secretaría de Investigación y Posgrado, Centro Nayarita de Innovación y Transferencia de Tecnología (CENITT), Universidad Autónoma de Nayarit, Tepic 63173, Nayarit, Mexico;
| | - Carlos Saldaña
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Av. De las Ciencias S/N, Querétaro 76220, Querétaro, Mexico;
| | - Miguel Ángel Ramos López
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Querétaro, Mexico; (M.A.E.B.); (M.P.M.N.); (M.Á.R.L.); (A.A.R.); (M.E.G.); (J.R.P.A.); (V.P.M.); (E.Á.H.); (J.N.R.)
| | - Aldo Amaro Reyes
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Querétaro, Mexico; (M.A.E.B.); (M.P.M.N.); (M.Á.R.L.); (A.A.R.); (M.E.G.); (J.R.P.A.); (V.P.M.); (E.Á.H.); (J.N.R.)
| | - Monserrat Escamilla García
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Querétaro, Mexico; (M.A.E.B.); (M.P.M.N.); (M.Á.R.L.); (A.A.R.); (M.E.G.); (J.R.P.A.); (V.P.M.); (E.Á.H.); (J.N.R.)
| | - Juan Ramiro Pacheco Aguilar
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Querétaro, Mexico; (M.A.E.B.); (M.P.M.N.); (M.Á.R.L.); (A.A.R.); (M.E.G.); (J.R.P.A.); (V.P.M.); (E.Á.H.); (J.N.R.)
| | - Victor Pérez Moreno
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Querétaro, Mexico; (M.A.E.B.); (M.P.M.N.); (M.Á.R.L.); (A.A.R.); (M.E.G.); (J.R.P.A.); (V.P.M.); (E.Á.H.); (J.N.R.)
| | - José Alberto Rodríguez Morales
- Facultad de Ingeniería, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Querétaro, Mexico;
| | - Erika Álvarez Hidalgo
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Querétaro, Mexico; (M.A.E.B.); (M.P.M.N.); (M.Á.R.L.); (A.A.R.); (M.E.G.); (J.R.P.A.); (V.P.M.); (E.Á.H.); (J.N.R.)
| | - Jorge Nuñez Ramírez
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Querétaro, Mexico; (M.A.E.B.); (M.P.M.N.); (M.Á.R.L.); (A.A.R.); (M.E.G.); (J.R.P.A.); (V.P.M.); (E.Á.H.); (J.N.R.)
| | | | - Juan Campos Guillén
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Querétaro, Mexico; (M.A.E.B.); (M.P.M.N.); (M.Á.R.L.); (A.A.R.); (M.E.G.); (J.R.P.A.); (V.P.M.); (E.Á.H.); (J.N.R.)
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Mena Navarro MP, Espinosa Bernal MA, Martinez-Avila AE, Aponte Pineda LS, Montes Flores LA, Chan Ku CD, Hernández Gómez YF, González Espinosa J, Pacheco Aguilar JR, Ramos López MÁ, Arvizu Gómez JL, Saldaña Gutierrez C, Rodríguez Morales JA, Amaro Reyes A, Hernández Flores JL, Campos Guillén J. Role of Volatile Organic Compounds Produced by Kosakonia cowanii Cp1 during Competitive Colonization Interaction against Pectobacterium aroidearum SM2. Microorganisms 2024; 12:930. [PMID: 38792761 PMCID: PMC11123878 DOI: 10.3390/microorganisms12050930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 04/27/2024] [Accepted: 04/30/2024] [Indexed: 05/26/2024] Open
Abstract
The competitive colonization of bacteria on similar ecological niches has a significant impact during their establishment. The synthesis speeds of different chemical classes of molecules during early competitive colonization can reduce the number of competitors through metabolic effects. In this work, we demonstrate for the first time that Kosakonia cowanii Cp1 previously isolated from the seeds of Capsicum pubescens R. P. produced volatile organic compounds (VOCs) during competitive colonization against Pectobacterium aroidearum SM2, affecting soft rot symptoms in serrano chili (Capsicum annuum L.). The pathogen P. aroidearum SM2 was isolated from the fruits of C. annuum var. Serrano with soft rot symptoms. The genome of the SM2 strain carries a 5,037,920 bp chromosome with 51.46% G + C content and 4925 predicted protein-coding genes. It presents 12 genes encoding plant-cell-wall-degrading enzymes (PCDEWs), 139 genes involved in five types of secretion systems, and 16 genes related to invasion motility. Pathogenic essays showed soft rot symptoms in the fruits of C. annuum L., Solanum lycopersicum, and Physalis philadelphica and the tubers of Solanum tuberosum. During the growth phases of K. cowanii Cp1, a mix of VOCs was identified by means of HS-SPME-GC-MS. Of these compounds, 2,5-dimethyl-pyrazine showed bactericidal effects and synergy with acetoin during the competitive colonization of K. cowanii Cp1 to completely reduce soft rot symptoms. This work provides novel evidence grounding a better understanding of bacterial interactions during competitive colonization on plant tissue, where VOC synthesis is essential and has a high potential capacity to control pathogenic microorganisms in agricultural systems.
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Affiliation(s)
- Mayra Paola Mena Navarro
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas s/n, Querétaro 76010, Qro, Mexico; (M.P.M.N.); (M.A.E.B.); (A.E.M.-A.); (L.S.A.P.); (L.A.M.F.); (C.D.C.K.); (Y.F.H.G.); (J.G.E.); (J.R.P.A.); (M.Á.R.L.); (A.A.R.)
| | - Merle Ariadna Espinosa Bernal
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas s/n, Querétaro 76010, Qro, Mexico; (M.P.M.N.); (M.A.E.B.); (A.E.M.-A.); (L.S.A.P.); (L.A.M.F.); (C.D.C.K.); (Y.F.H.G.); (J.G.E.); (J.R.P.A.); (M.Á.R.L.); (A.A.R.)
| | - Adriana Eunice Martinez-Avila
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas s/n, Querétaro 76010, Qro, Mexico; (M.P.M.N.); (M.A.E.B.); (A.E.M.-A.); (L.S.A.P.); (L.A.M.F.); (C.D.C.K.); (Y.F.H.G.); (J.G.E.); (J.R.P.A.); (M.Á.R.L.); (A.A.R.)
| | - Leonela Sofia Aponte Pineda
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas s/n, Querétaro 76010, Qro, Mexico; (M.P.M.N.); (M.A.E.B.); (A.E.M.-A.); (L.S.A.P.); (L.A.M.F.); (C.D.C.K.); (Y.F.H.G.); (J.G.E.); (J.R.P.A.); (M.Á.R.L.); (A.A.R.)
| | - Luis Alberto Montes Flores
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas s/n, Querétaro 76010, Qro, Mexico; (M.P.M.N.); (M.A.E.B.); (A.E.M.-A.); (L.S.A.P.); (L.A.M.F.); (C.D.C.K.); (Y.F.H.G.); (J.G.E.); (J.R.P.A.); (M.Á.R.L.); (A.A.R.)
| | - Carlos Daniel Chan Ku
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas s/n, Querétaro 76010, Qro, Mexico; (M.P.M.N.); (M.A.E.B.); (A.E.M.-A.); (L.S.A.P.); (L.A.M.F.); (C.D.C.K.); (Y.F.H.G.); (J.G.E.); (J.R.P.A.); (M.Á.R.L.); (A.A.R.)
| | - Yoali Fernanda Hernández Gómez
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas s/n, Querétaro 76010, Qro, Mexico; (M.P.M.N.); (M.A.E.B.); (A.E.M.-A.); (L.S.A.P.); (L.A.M.F.); (C.D.C.K.); (Y.F.H.G.); (J.G.E.); (J.R.P.A.); (M.Á.R.L.); (A.A.R.)
| | - Jacqueline González Espinosa
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas s/n, Querétaro 76010, Qro, Mexico; (M.P.M.N.); (M.A.E.B.); (A.E.M.-A.); (L.S.A.P.); (L.A.M.F.); (C.D.C.K.); (Y.F.H.G.); (J.G.E.); (J.R.P.A.); (M.Á.R.L.); (A.A.R.)
| | - Juan Ramiro Pacheco Aguilar
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas s/n, Querétaro 76010, Qro, Mexico; (M.P.M.N.); (M.A.E.B.); (A.E.M.-A.); (L.S.A.P.); (L.A.M.F.); (C.D.C.K.); (Y.F.H.G.); (J.G.E.); (J.R.P.A.); (M.Á.R.L.); (A.A.R.)
| | - Miguel Ángel Ramos López
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas s/n, Querétaro 76010, Qro, Mexico; (M.P.M.N.); (M.A.E.B.); (A.E.M.-A.); (L.S.A.P.); (L.A.M.F.); (C.D.C.K.); (Y.F.H.G.); (J.G.E.); (J.R.P.A.); (M.Á.R.L.); (A.A.R.)
| | - Jackeline Lizzeta Arvizu Gómez
- Secretaría de Investigación y Posgrado, Centro Nayarita de Innovación y Transferencia de Tecnología (CENITT), Universidad Autónoma de Nayarit, Tepic 63173, Mexico;
| | - Carlos Saldaña Gutierrez
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Av. De las Ciencias s/n, Querétaro 76220, Mexico;
| | | | - Aldo Amaro Reyes
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas s/n, Querétaro 76010, Qro, Mexico; (M.P.M.N.); (M.A.E.B.); (A.E.M.-A.); (L.S.A.P.); (L.A.M.F.); (C.D.C.K.); (Y.F.H.G.); (J.G.E.); (J.R.P.A.); (M.Á.R.L.); (A.A.R.)
| | | | - Juan Campos Guillén
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas s/n, Querétaro 76010, Qro, Mexico; (M.P.M.N.); (M.A.E.B.); (A.E.M.-A.); (L.S.A.P.); (L.A.M.F.); (C.D.C.K.); (Y.F.H.G.); (J.G.E.); (J.R.P.A.); (M.Á.R.L.); (A.A.R.)
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Chen X, Zhang M, Tang L, Huang S, Guo T, Li Q. Screening and characterization of biocontrol bacteria isolated from Ageratum conyzoides against Collectotrichum fructicola causing Chinese plum ( Prunus salicina Lindl.) anthracnose. Front Microbiol 2023; 14:1296755. [PMID: 38130944 PMCID: PMC10734640 DOI: 10.3389/fmicb.2023.1296755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/16/2023] [Indexed: 12/23/2023] Open
Abstract
Chinese plum (Prunus salicina Lindl.) is a nutritionally and economically important stone fruit widely grown around the world. Anthracnose, caused by Collectotrichum spp., is one of the primary biotic stress factors limiting plum production. Medicinal plants may harbor rhizospheric or endophytic microorganisms that produce bioactive metabolites that can be used as anthracnose biocontrol agents. Here, 27 bacterial isolates from the medicinal plant A. conyzoides with diverse antagonistic activities against C. fructicola were screened. Based on morphological, physiological, biochemical, and molecular characterization, 25 of these isolates belong to different species of genus Bacillus, one to Pseudomonas monsensis, and one more to Microbacterium phyllosphaerae. Eight representative strains showed high biocontrol efficacy against plum anthracnose in a pot experiment. In addition, several Bacillus isolates showed a broad spectrum of inhibitory activity against a variety of fungal phytopathogens. Analysis of the volatile organic compound profile of these eight representative strains revealed a total of 47 compounds, most of which were ketones, while the others included alkanes, alkenes, alcohols, pyrazines, and phenols. Overall, this study confirmed the potential value of eight bacterial isolates for development as anthracnose biocontrol agents.
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Affiliation(s)
| | | | | | | | | | - Qili Li
- Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs, Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Institute of Plant Protection, Guangxi Academy of Agricultural Sciences, Nanning, China
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