Azospirillum as Biofertilizer for Sustainable Agriculture: Azospirillum brasilense AZ39 as a Model of PGPR and Field Traceability
Azospirillum is one of the best studied genus of plant growth promoting rhizobacteria at present. These bacteria are able to colonize hundreds of plant species and significantly improve their growth, development and productivity under field conditions. Besides nitrogen fixation, the most studied mec...
| Autores principales: | , , , |
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| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
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Springer Nature
2025
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/21462 https://link.springer.com/chapter/10.1007/978-3-030-17597-9_4 https://doi.org/10.1007/978-3-030-17597-9_4 |
| _version_ | 1855486757419614208 |
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| author | Coniglio, Anahí Mora, Verónica Puente, Mariana Laura Cassan, Fabricio Dario |
| author_browse | Cassan, Fabricio Dario Coniglio, Anahí Mora, Verónica Puente, Mariana Laura |
| author_facet | Coniglio, Anahí Mora, Verónica Puente, Mariana Laura Cassan, Fabricio Dario |
| author_sort | Coniglio, Anahí |
| collection | INTA Digital |
| description | Azospirillum is one of the best studied genus of plant growth promoting rhizobacteria at present. These bacteria are able to colonize hundreds of plant species and significantly improve their growth, development and productivity under field conditions. Besides nitrogen fixation, the most studied mechanism proposed for Azospirillum to explain plant growth promotion of inoculated plants has been related to its ability to produce several phytohormones, mainly auxins and particularly indole-3-acetic acid. Although different capacities have been described to explain the plant growth regulation by Azospirillum one single mechanism is not quite extensive to explain the full effect observed on inoculated plants. The bacterial mode of action is currently better explained as the result of additive and selective effects. One of the most important achievements obtained thus far is the utilization of azospirilla as commercial inoculants in approximately 7.0 million doses and 5.0 million ha, mainly cultivated with cereal crops and legumes in South America. Different inoculation practices (farmer applied or industrial seed treatments, infurrow, foliar or soil sprayed applications) have been developed and improved in the last two decades for a wide range of crops, in field conditions. Particularly, the combined inoculation of legumes with rhizobia and azospirilla, could over improve the performance of the plants compared with a single inoculation, due to the complementary biological processes of both microbes. The development and validation of specific novel methodologies for identification of A. brasilense, and particularly the strain Az39 in both bio-products and inoculated samples (i.e. soil, rhizosphere, seeds or plant tissues) offer a precise tool to evaluate the functionality and traceabilityof these microorganisms in the environment. In this chapter, we explore some classical mechanisms of plant growth promotion in A. brasilense Az39, one of the most widely used PGPR strains for inoculant production in South America. Additionally, we discuss some novel molecular tools designated to identify this strain in both bio-products and field conditions. |
| format | Capítulo de libro |
| id | INTA21462 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Springer Nature |
| publisherStr | Springer Nature |
| record_format | dspace |
| spelling | INTA214622025-02-26T10:05:09Z Azospirillum as Biofertilizer for Sustainable Agriculture: Azospirillum brasilense AZ39 as a Model of PGPR and Field Traceability Coniglio, Anahí Mora, Verónica Puente, Mariana Laura Cassan, Fabricio Dario Azospirillum Biofertilizers Sustainable Agriculture Azospirillum brasilense Traceability Inoculation Biofertilizantes Agricultura Sostenible Trazabilidad Inoculación Azospirillum is one of the best studied genus of plant growth promoting rhizobacteria at present. These bacteria are able to colonize hundreds of plant species and significantly improve their growth, development and productivity under field conditions. Besides nitrogen fixation, the most studied mechanism proposed for Azospirillum to explain plant growth promotion of inoculated plants has been related to its ability to produce several phytohormones, mainly auxins and particularly indole-3-acetic acid. Although different capacities have been described to explain the plant growth regulation by Azospirillum one single mechanism is not quite extensive to explain the full effect observed on inoculated plants. The bacterial mode of action is currently better explained as the result of additive and selective effects. One of the most important achievements obtained thus far is the utilization of azospirilla as commercial inoculants in approximately 7.0 million doses and 5.0 million ha, mainly cultivated with cereal crops and legumes in South America. Different inoculation practices (farmer applied or industrial seed treatments, infurrow, foliar or soil sprayed applications) have been developed and improved in the last two decades for a wide range of crops, in field conditions. Particularly, the combined inoculation of legumes with rhizobia and azospirilla, could over improve the performance of the plants compared with a single inoculation, due to the complementary biological processes of both microbes. The development and validation of specific novel methodologies for identification of A. brasilense, and particularly the strain Az39 in both bio-products and inoculated samples (i.e. soil, rhizosphere, seeds or plant tissues) offer a precise tool to evaluate the functionality and traceabilityof these microorganisms in the environment. In this chapter, we explore some classical mechanisms of plant growth promotion in A. brasilense Az39, one of the most widely used PGPR strains for inoculant production in South America. Additionally, we discuss some novel molecular tools designated to identify this strain in both bio-products and field conditions. Instituto de Microbiología y Zoología Agrícola (IMYZA) Fil: Coniglio, Anahí. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Físico-Químicas y Naturales. Departamento de Ciencias Naturales. Laboratorio de Fisiología Vegetal y de la Interacción Planta-Microorganismo (LFVIPM); Argentina Fil: Mora, Verónica. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Físico-Químicas y Naturales. Departamento de Ciencias Naturales. Laboratorio de Fisiología Vegetal y de la Interacción Planta-Microorganismo (LFVIPM); Argentina Fil: Puente, Mariana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina Fil: Cassán, Fabricio. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Físico-Químicas y Naturales. Departamento de Ciencias Naturales. Laboratorio de Fisiología Vegetal y de la Interacción Planta-Microorganismo (LFVIPM); Argentina 2025-02-26T09:51:41Z 2025-02-26T09:51:41Z 2019-07-17 info:ar-repo/semantics/parte de libro info:eu-repo/semantics/bookPart info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/21462 https://link.springer.com/chapter/10.1007/978-3-030-17597-9_4 978-3-030-17597-9 (online) https://doi.org/10.1007/978-3-030-17597-9_4 eng 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 Springer Nature Microbial Probiotics for Agricultural Systems. Sustainability in Plant and Crop Protection / Zúñiga-Dávila, D., González-Andrés, F., Ormeño-Orrillo, E. (Eds.). 2019. Springer, Cham. Chapter 4, p. 45-70. |
| spellingShingle | Azospirillum Biofertilizers Sustainable Agriculture Azospirillum brasilense Traceability Inoculation Biofertilizantes Agricultura Sostenible Trazabilidad Inoculación Coniglio, Anahí Mora, Verónica Puente, Mariana Laura Cassan, Fabricio Dario Azospirillum as Biofertilizer for Sustainable Agriculture: Azospirillum brasilense AZ39 as a Model of PGPR and Field Traceability |
| title | Azospirillum as Biofertilizer for Sustainable Agriculture: Azospirillum brasilense AZ39 as a Model of PGPR and Field Traceability |
| title_full | Azospirillum as Biofertilizer for Sustainable Agriculture: Azospirillum brasilense AZ39 as a Model of PGPR and Field Traceability |
| title_fullStr | Azospirillum as Biofertilizer for Sustainable Agriculture: Azospirillum brasilense AZ39 as a Model of PGPR and Field Traceability |
| title_full_unstemmed | Azospirillum as Biofertilizer for Sustainable Agriculture: Azospirillum brasilense AZ39 as a Model of PGPR and Field Traceability |
| title_short | Azospirillum as Biofertilizer for Sustainable Agriculture: Azospirillum brasilense AZ39 as a Model of PGPR and Field Traceability |
| title_sort | azospirillum as biofertilizer for sustainable agriculture azospirillum brasilense az39 as a model of pgpr and field traceability |
| topic | Azospirillum Biofertilizers Sustainable Agriculture Azospirillum brasilense Traceability Inoculation Biofertilizantes Agricultura Sostenible Trazabilidad Inoculación |
| url | http://hdl.handle.net/20.500.12123/21462 https://link.springer.com/chapter/10.1007/978-3-030-17597-9_4 https://doi.org/10.1007/978-3-030-17597-9_4 |
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