Identifying bacterial and fungal communities associated with Fusarium-wilt symptomatic and non-symptomatic ‘Gros Michel’ banana plants in Ecuador

Fusarium wilt of banana (FWB), caused by Fusarium oxysporum f. sp. cubense (Foc), remains a critical threat to banana production worldwide. Despite the persistence of the disease in fields planted with susceptible cultivars such as ‘Gros Michel’, little is known about the microbial interactions infl...

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Main Authors: Estefany M. Paredes Salgado, Fiama E. Guevara, Carlos Muentes, Francisco J. Flores, Freddy Magdama
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-06-01
Series:Frontiers in Cellular and Infection Microbiology
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Online Access:https://www.frontiersin.org/articles/10.3389/fcimb.2025.1572860/full
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author Estefany M. Paredes Salgado
Estefany M. Paredes Salgado
Fiama E. Guevara
Carlos Muentes
Francisco J. Flores
Francisco J. Flores
Freddy Magdama
Freddy Magdama
author_facet Estefany M. Paredes Salgado
Estefany M. Paredes Salgado
Fiama E. Guevara
Carlos Muentes
Francisco J. Flores
Francisco J. Flores
Freddy Magdama
Freddy Magdama
author_sort Estefany M. Paredes Salgado
collection DOAJ
description Fusarium wilt of banana (FWB), caused by Fusarium oxysporum f. sp. cubense (Foc), remains a critical threat to banana production worldwide. Despite the persistence of the disease in fields planted with susceptible cultivars such as ‘Gros Michel’, little is known about the microbial interactions influencing symptom development. In this study, we assessed the bacterial and fungal communities associated to symptomatic and non-symptomatic ‘Gros Michel’ bananas plants sampled in Ecuador banana fields affected by Foc race 1. We aimed to compare their diversity, composition, and to identify potential microbial taxa that could be active in disease suppression. Samples were collected from the pseudostem, rhizome, and rhizosphere, and analyzed through high-throughput sequencing of the 16S rRNA and ITS2 regions to characterize bacterial and fungal communities, respectively. Results revealed that non-symptomatic plants harbored significantly higher bacterial diversity, particularly in pseudostem and rhizome tissues, compared to symptomatic plants. Genera including, Bacillus, Enterobacter, Paenibacillus, Pectobacterium, Herbaspirillum and Pseudomonas were enriched in non-symptomatic tissues, suggesting a potential role in disease suppression. In contrast, symptomatic plants showed an increased abundance of genera such as Klebsiella and Kosakonia. Fungal community shifts were less pronounced, indicating that bacterial dynamics may play a more critical role in disease development. These findings shed light on the key microbial taxa associated with FWB-affected banana plants and the potential role of their microbiome to plant health and disease suppression.
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spelling doaj-art-5a904f165ee44f3ab51ebdf540d721652025-08-20T03:47:19ZengFrontiers Media S.A.Frontiers in Cellular and Infection Microbiology2235-29882025-06-011510.3389/fcimb.2025.15728601572860Identifying bacterial and fungal communities associated with Fusarium-wilt symptomatic and non-symptomatic ‘Gros Michel’ banana plants in EcuadorEstefany M. Paredes Salgado0Estefany M. Paredes Salgado1Fiama E. Guevara2Carlos Muentes3Francisco J. Flores4Francisco J. Flores5Freddy Magdama6Freddy Magdama7Departamento de Ciencias de la Vida y la Agricultura, Universidad de las Fuerzas Armadas (UFA) Universidad de las Fuerzas Armadas (ESPE), Sangolquí, EcuadorEscuela Superior Politécnica del Litoral (ESPOL), Centro de Investigaciones Biotecnológicas del Ecuador (CIBE), Guayaquil, EcuadorCentro de Estudios de Posgrado de la Universidad de las Fuerzas Armadas (ESPE), Sangolquí, EcuadorAgencia de Regulación y Control Fito y Zoosanitario (AGROCALIDAD), Quito, EcuadorDepartamento de Ciencias de la Vida y la Agricultura, Universidad de las Fuerzas Armadas (UFA) Universidad de las Fuerzas Armadas (ESPE), Sangolquí, EcuadorCentro de Investigación de Alimentos, Facultad de Ciencias de la Ingeniería e Industrias, Universidad UTE, Quito, EcuadorEscuela Superior Politécnica del Litoral (ESPOL), Centro de Investigaciones Biotecnológicas del Ecuador (CIBE), Guayaquil, EcuadorFacultad de Ciencias de la Vida, Escuela Superior Politécnica del Litoral (ESPOL), Guayaquil, EcuadorFusarium wilt of banana (FWB), caused by Fusarium oxysporum f. sp. cubense (Foc), remains a critical threat to banana production worldwide. Despite the persistence of the disease in fields planted with susceptible cultivars such as ‘Gros Michel’, little is known about the microbial interactions influencing symptom development. In this study, we assessed the bacterial and fungal communities associated to symptomatic and non-symptomatic ‘Gros Michel’ bananas plants sampled in Ecuador banana fields affected by Foc race 1. We aimed to compare their diversity, composition, and to identify potential microbial taxa that could be active in disease suppression. Samples were collected from the pseudostem, rhizome, and rhizosphere, and analyzed through high-throughput sequencing of the 16S rRNA and ITS2 regions to characterize bacterial and fungal communities, respectively. Results revealed that non-symptomatic plants harbored significantly higher bacterial diversity, particularly in pseudostem and rhizome tissues, compared to symptomatic plants. Genera including, Bacillus, Enterobacter, Paenibacillus, Pectobacterium, Herbaspirillum and Pseudomonas were enriched in non-symptomatic tissues, suggesting a potential role in disease suppression. In contrast, symptomatic plants showed an increased abundance of genera such as Klebsiella and Kosakonia. Fungal community shifts were less pronounced, indicating that bacterial dynamics may play a more critical role in disease development. These findings shed light on the key microbial taxa associated with FWB-affected banana plants and the potential role of their microbiome to plant health and disease suppression.https://www.frontiersin.org/articles/10.3389/fcimb.2025.1572860/fullmicrobiome analysisMusa acuminata ‘Gros Michel’Fusarium oxysporum f. sp. cubenserhizome and rhizosphere soilendophytic microbessoil-borne fungal diseases
spellingShingle Estefany M. Paredes Salgado
Estefany M. Paredes Salgado
Fiama E. Guevara
Carlos Muentes
Francisco J. Flores
Francisco J. Flores
Freddy Magdama
Freddy Magdama
Identifying bacterial and fungal communities associated with Fusarium-wilt symptomatic and non-symptomatic ‘Gros Michel’ banana plants in Ecuador
Frontiers in Cellular and Infection Microbiology
microbiome analysis
Musa acuminata ‘Gros Michel’
Fusarium oxysporum f. sp. cubense
rhizome and rhizosphere soil
endophytic microbes
soil-borne fungal diseases
title Identifying bacterial and fungal communities associated with Fusarium-wilt symptomatic and non-symptomatic ‘Gros Michel’ banana plants in Ecuador
title_full Identifying bacterial and fungal communities associated with Fusarium-wilt symptomatic and non-symptomatic ‘Gros Michel’ banana plants in Ecuador
title_fullStr Identifying bacterial and fungal communities associated with Fusarium-wilt symptomatic and non-symptomatic ‘Gros Michel’ banana plants in Ecuador
title_full_unstemmed Identifying bacterial and fungal communities associated with Fusarium-wilt symptomatic and non-symptomatic ‘Gros Michel’ banana plants in Ecuador
title_short Identifying bacterial and fungal communities associated with Fusarium-wilt symptomatic and non-symptomatic ‘Gros Michel’ banana plants in Ecuador
title_sort identifying bacterial and fungal communities associated with fusarium wilt symptomatic and non symptomatic gros michel banana plants in ecuador
topic microbiome analysis
Musa acuminata ‘Gros Michel’
Fusarium oxysporum f. sp. cubense
rhizome and rhizosphere soil
endophytic microbes
soil-borne fungal diseases
url https://www.frontiersin.org/articles/10.3389/fcimb.2025.1572860/full
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