Phenogenetic profile and agronomic contribution of Azospirillum argentinense Az39T, a reference strain for the South American inoculant industry
Azospirillum sp. is a plant growth-promoting rhizobacteria largely recognized for its potential to increase the yield of different important crops. In this work, we present a thorough genomic and phenotypic analysis of A. argentinense Az39T to provide new insights into the beneficial mechanisms of t...
| Autores principales: | , , , , , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Elsevier
2025
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/21120 https://doi.org/10.1016/j.micres.2024.127650 |
| _version_ | 1855486689059799040 |
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| author | Maroniche, Guillermo Andrés Puente, Mariana Laura Garcia, Julia Elena Mongiardini, Elias Javier Coniglio, Nayla Anahí Nievas, Sofía Mariela Labarthe, María Mercedes Wisniewski-Dyé, Florence Rodriguez Cáceres, Enrique Diaz Zorita, Martin Cassán, Fabricio Darío |
| author_browse | Cassán, Fabricio Darío Coniglio, Nayla Anahí Diaz Zorita, Martin Garcia, Julia Elena Labarthe, María Mercedes Maroniche, Guillermo Andrés Mongiardini, Elias Javier Nievas, Sofía Mariela Puente, Mariana Laura Rodriguez Cáceres, Enrique Wisniewski-Dyé, Florence |
| author_facet | Maroniche, Guillermo Andrés Puente, Mariana Laura Garcia, Julia Elena Mongiardini, Elias Javier Coniglio, Nayla Anahí Nievas, Sofía Mariela Labarthe, María Mercedes Wisniewski-Dyé, Florence Rodriguez Cáceres, Enrique Diaz Zorita, Martin Cassán, Fabricio Darío |
| author_sort | Maroniche, Guillermo Andrés |
| collection | INTA Digital |
| description | Azospirillum sp. is a plant growth-promoting rhizobacteria largely recognized for its potential to increase the yield of different important crops. In this work, we present a thorough genomic and phenotypic analysis of A. argentinense Az39T to provide new insights into the beneficial mechanisms of this microorganism. Phenotypic analyses revealed the following in vitro abilities: growth at 20–38 °C (optimum, 28 °C), pH 6.0–8.0 (optimum, pH 6.8), and in the presence of 1% (w/v) NaCl; production of variable amounts of PHB as intracellular granules; nitrogen fixation under microaerophilic conditions; IAA synthesis in the presence of L-tryptophan. Through biochemical (API 20NE) and carbon utilization profiling (Biolog) assays, we proved that A. argentinense Az39T is able to use 15 substrates and metabolize 19 different carbon substrates. Lipid composition indicated a predominance of medium and long-chain saturated fatty acids. A total of 6 replicons classified as one main chromosome, three chromids, and two plasmids, according to their tRNA and core essential genes contents, were identified. Az39T genome includes genes associated with multiple plant growth-promoting (PGP) traits such as nitrogen fixation and production of auxins, cytokinin, abscisic acid, ethylene, and polyamines. In addition, Az39T genome harbor genetic elements associated with physiological features that facilitate its survival in the soil and competence for rhizospheric colonization; this includes motility, secretion system, and quorum sensing genetic determinants. A metadata analysis of Az39T agronomic performance in the pampas region, Argentina, demonstrated significant grain yield increases in wheat and maize, proving its potential to provide better growth conditions for dryland cereals. In conclusion, our data provide a detailed insight into the metabolic profile of A. argentinense Az39T, the strain most widely used to formulate non-legume inoculants in Argentina, and allow a better understanding of the mechanisms behind its field performance. |
| format | Artículo |
| id | INTA21120 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA211202025-01-31T18:24:22Z Phenogenetic profile and agronomic contribution of Azospirillum argentinense Az39T, a reference strain for the South American inoculant industry Maroniche, Guillermo Andrés Puente, Mariana Laura Garcia, Julia Elena Mongiardini, Elias Javier Coniglio, Nayla Anahí Nievas, Sofía Mariela Labarthe, María Mercedes Wisniewski-Dyé, Florence Rodriguez Cáceres, Enrique Diaz Zorita, Martin Cassán, Fabricio Darío Azospirillum Cepas Colonización de la Rizosfera Rendimiento de Cultivos Strains Rhizosphere Colonization Crop Yield Phenogenetic Profile Agronomic Contribution Inoculant Industry Azospirillum argentinense Az39 Azospirillum sp. is a plant growth-promoting rhizobacteria largely recognized for its potential to increase the yield of different important crops. In this work, we present a thorough genomic and phenotypic analysis of A. argentinense Az39T to provide new insights into the beneficial mechanisms of this microorganism. Phenotypic analyses revealed the following in vitro abilities: growth at 20–38 °C (optimum, 28 °C), pH 6.0–8.0 (optimum, pH 6.8), and in the presence of 1% (w/v) NaCl; production of variable amounts of PHB as intracellular granules; nitrogen fixation under microaerophilic conditions; IAA synthesis in the presence of L-tryptophan. Through biochemical (API 20NE) and carbon utilization profiling (Biolog) assays, we proved that A. argentinense Az39T is able to use 15 substrates and metabolize 19 different carbon substrates. Lipid composition indicated a predominance of medium and long-chain saturated fatty acids. A total of 6 replicons classified as one main chromosome, three chromids, and two plasmids, according to their tRNA and core essential genes contents, were identified. Az39T genome includes genes associated with multiple plant growth-promoting (PGP) traits such as nitrogen fixation and production of auxins, cytokinin, abscisic acid, ethylene, and polyamines. In addition, Az39T genome harbor genetic elements associated with physiological features that facilitate its survival in the soil and competence for rhizospheric colonization; this includes motility, secretion system, and quorum sensing genetic determinants. A metadata analysis of Az39T agronomic performance in the pampas region, Argentina, demonstrated significant grain yield increases in wheat and maize, proving its potential to provide better growth conditions for dryland cereals. In conclusion, our data provide a detailed insight into the metabolic profile of A. argentinense Az39T, the strain most widely used to formulate non-legume inoculants in Argentina, and allow a better understanding of the mechanisms behind its field performance. https://www.sciencedirect.com/science/article/abs/pii/S094450132400051X Instituto de Microbiología y Zoología Agrícola (IMYZA) Fil: Maroniche, Guillermo Andrés. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; Argentina Fil: Maroniche, Guillermo Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina Fil: Puente, Mariana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina Fil: Garcia, Julia Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina Fil: Mongiardini, Elias Javier. Universidad Nacional de La Plata (UNLP). Facultad de Ciencias Exactas. Instituto de Biotecnología y Biología Molecular; Argentina Fil: Mongiardini, Elias Javier. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina Fil: Coniglio, Nayla Anahí. Universidad Nacional de Río Cuarto (UNRC). Instituto de Investigaciones Agrobiotecnológicas (INIAB). Laboratorio de Fisiología Vegetal y de la Interacción Planta-Microorganismo; Argentina Fil: Coniglio, Nayla Anahí. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Investigaciones Agrobiotecnológicas (INIAB). Laboratorio de Fisiología Vegetal y de la Interacción Planta-Microorganismo; Argentina Fil: Nievas, Sofía Mariela. Universidad Nacional de Río Cuarto (UNRC). Instituto de Investigaciones Agrobiotecnológicas (INIAB). Laboratorio de Fisiología Vegetal y de la Interacción Planta-Microorganismo; Argentina Fil: Nievas, Sofía Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Investigaciones Agrobiotecnológicas (INIAB). Laboratorio de Fisiología Vegetal y de la Interacción Planta-Microorganismo; Argentina Fil: Labarthe, María Mercedes. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; Argentina Fil: Labarthe, María Mercedes. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina Fil: Wisniewski-Dyé, Florence. Universite Claude Bernard Lyon 1. Laboratoire d′Ecologie Microbienne; Francia Fil: Rodriguez Cáceres, Enrique. Plantec Biotecnología; Argentina Fil: Diaz Zorita, Martin. Universidad Nacional de La Pampa (UNLPam). Facultad de Agronomía; Argentina Fil: Diaz Zorita, Martin. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina Fil: Cassán, Fabricio Darío. Universidad Nacional de Río Cuarto (UNRC). Instituto de Investigaciones Agrobiotecnológicas (INIAB). Laboratorio de Fisiología Vegetal y de la Interacción Planta-Microorganismo; Argentina Fil: Cassán, Fabricio Darío. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Investigaciones Agrobiotecnológicas (INIAB). Laboratorio de Fisiología Vegetal y de la Interacción Planta-Microorganismo; Argentina 2025-01-31T17:53:54Z 2025-01-31T17:53:54Z 2024-02-15 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/21120 https://doi.org/10.1016/j.micres.2024.127650 eng info:eu-repograntAgreement/INTA/2023-PE-L04-I073, Desarrollo de bioinsumos y su integración en estrategias de manejo de adversidades bióticas y abióticas en cultivos agrícolas y forestales info:eu-repograntAgreement/INTA/2023-PD-L03-I084, Estreses bióticos y abióticos en plantas. Estudios fisiológicos y patológicos para el diseño de estrategias de mejoramiento y manejo info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Elsevier Microbiological Research 283 : 127650. (June 2024 ) |
| spellingShingle | Azospirillum Cepas Colonización de la Rizosfera Rendimiento de Cultivos Strains Rhizosphere Colonization Crop Yield Phenogenetic Profile Agronomic Contribution Inoculant Industry Azospirillum argentinense Az39 Maroniche, Guillermo Andrés Puente, Mariana Laura Garcia, Julia Elena Mongiardini, Elias Javier Coniglio, Nayla Anahí Nievas, Sofía Mariela Labarthe, María Mercedes Wisniewski-Dyé, Florence Rodriguez Cáceres, Enrique Diaz Zorita, Martin Cassán, Fabricio Darío Phenogenetic profile and agronomic contribution of Azospirillum argentinense Az39T, a reference strain for the South American inoculant industry |
| title | Phenogenetic profile and agronomic contribution of Azospirillum argentinense Az39T, a reference strain for the South American inoculant industry |
| title_full | Phenogenetic profile and agronomic contribution of Azospirillum argentinense Az39T, a reference strain for the South American inoculant industry |
| title_fullStr | Phenogenetic profile and agronomic contribution of Azospirillum argentinense Az39T, a reference strain for the South American inoculant industry |
| title_full_unstemmed | Phenogenetic profile and agronomic contribution of Azospirillum argentinense Az39T, a reference strain for the South American inoculant industry |
| title_short | Phenogenetic profile and agronomic contribution of Azospirillum argentinense Az39T, a reference strain for the South American inoculant industry |
| title_sort | phenogenetic profile and agronomic contribution of azospirillum argentinense az39t a reference strain for the south american inoculant industry |
| topic | Azospirillum Cepas Colonización de la Rizosfera Rendimiento de Cultivos Strains Rhizosphere Colonization Crop Yield Phenogenetic Profile Agronomic Contribution Inoculant Industry Azospirillum argentinense Az39 |
| url | http://hdl.handle.net/20.500.12123/21120 https://doi.org/10.1016/j.micres.2024.127650 |
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