Exploring Phosphate Solubilizing Bacterial Communities in Rhizospheres of Native and Exotic Forage Grasses in Alkaline‑Sodic Soils of the Flooding Pampa
The fooding pampa is one of the most important cattle-raising regions in Argentina. In this region, natural pastures are dominated by low-productivity native grass species, which are the main feed for livestock. In this context, previous studies in the region with the subtropical exotic grass Panicu...
| Autores principales: | , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
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Springer
2024
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/20249 https://link.springer.com/article/10.1007/s00284-024-03704-x https://doi.org/10.1007/s00284-024-03704-x |
| _version_ | 1855038194465112064 |
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| author | Dip, Diana Patricia Sannazzaro, Analía Inés Otondo, Jose Pistorio, Mariano Estrella, María Julia |
| author_browse | Dip, Diana Patricia Estrella, María Julia Otondo, Jose Pistorio, Mariano Sannazzaro, Analía Inés |
| author_facet | Dip, Diana Patricia Sannazzaro, Analía Inés Otondo, Jose Pistorio, Mariano Estrella, María Julia |
| author_sort | Dip, Diana Patricia |
| collection | INTA Digital |
| description | The fooding pampa is one of the most important cattle-raising regions in Argentina. In this region, natural pastures are dominated by low-productivity native grass species, which are the main feed for livestock. In this context, previous studies in the region with the subtropical exotic grass Panicum coloratum highlight it as a promising species to improve pasture productivity. Cultivable phosphate solubilizing bacteria (PSB) communities associated to native (Sporobolus indicus) and exotic (Panicum coloratum) forage grasses adapted to alkaline-sodic soils of the fooding pampa were analyzed. PSB represented 2–14% of cultivable rhizobacteria and Box-PCR fngerprinting revealed a high genetic diversity in both rhizospheres. Taxonomic identifcation by MALDI-TOF showed that PSB populations of P. coloratum and S. indicus rhizospheres are dominated by the phylum Proteobacteria (92,51% and 96,60% respectively) and to a lesser extent (<10%), by the phyla Actinobacteria and Firmicutes. At the genus level, both PSB populations were dominated by Enterobacter and Pseudomonas. Siderophore production, nitrogen fxation, and indoleacetic acid production were detected in a variety of PSB genera of both plant species. A higher proportion of siderophore and IAA producers were associated to P. coloratum than S. indicus, probably refecting a greater dependence of the exotic species on rhizospheric microorganisms to satisfy its nutritional requirements in the soils of the fooding pampa. This work provides a novel knowledge about functional groups of bacteria associated to plants given that there are no previous reports dedicated to the characterization of PSB rhizosphere communities of S indicus and P coloratum. Finally, it should be noted that the collection obtained in this study can be useful for the development of bioinputs that allow reducing the use of chemical fertilizers, providing sustainability to pasture production systems for livestock. |
| format | info:ar-repo/semantics/artículo |
| id | INTA20249 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA202492024-11-13T10:18:43Z Exploring Phosphate Solubilizing Bacterial Communities in Rhizospheres of Native and Exotic Forage Grasses in Alkaline‑Sodic Soils of the Flooding Pampa Dip, Diana Patricia Sannazzaro, Analía Inés Otondo, Jose Pistorio, Mariano Estrella, María Julia Rizobacteria Forrajes Suelo Alcalino Suelo Sódico Panicum coloratum Rhizobacteria Forage Alkaline Soils Sodic Soils Suelo Alcalino Sódico Flooding Pampa Phosphate Solubilizing Bacteria The fooding pampa is one of the most important cattle-raising regions in Argentina. In this region, natural pastures are dominated by low-productivity native grass species, which are the main feed for livestock. In this context, previous studies in the region with the subtropical exotic grass Panicum coloratum highlight it as a promising species to improve pasture productivity. Cultivable phosphate solubilizing bacteria (PSB) communities associated to native (Sporobolus indicus) and exotic (Panicum coloratum) forage grasses adapted to alkaline-sodic soils of the fooding pampa were analyzed. PSB represented 2–14% of cultivable rhizobacteria and Box-PCR fngerprinting revealed a high genetic diversity in both rhizospheres. Taxonomic identifcation by MALDI-TOF showed that PSB populations of P. coloratum and S. indicus rhizospheres are dominated by the phylum Proteobacteria (92,51% and 96,60% respectively) and to a lesser extent (<10%), by the phyla Actinobacteria and Firmicutes. At the genus level, both PSB populations were dominated by Enterobacter and Pseudomonas. Siderophore production, nitrogen fxation, and indoleacetic acid production were detected in a variety of PSB genera of both plant species. A higher proportion of siderophore and IAA producers were associated to P. coloratum than S. indicus, probably refecting a greater dependence of the exotic species on rhizospheric microorganisms to satisfy its nutritional requirements in the soils of the fooding pampa. This work provides a novel knowledge about functional groups of bacteria associated to plants given that there are no previous reports dedicated to the characterization of PSB rhizosphere communities of S indicus and P coloratum. Finally, it should be noted that the collection obtained in this study can be useful for the development of bioinputs that allow reducing the use of chemical fertilizers, providing sustainability to pasture production systems for livestock. EEA Cuenca del Salado Fil: Dip, Diana Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto Tecnológico Chascomús (INTECH); Argentina Fil: Dip, Diana Patricia. Universidad Nacional de San Martín (UNSAM). Instituto Tecnológico Chascomús (INTECH); Argentina Fil: Sannazzaro, Analía Inés. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto Tecnológico Chascomús (INTECH); Argentina Fil: Sannazzaro, Analía Inés. Universidad Nacional de San Martín (UNSAM). Instituto Tecnológico Chascomús (INTECH); Argentina Fil: Otondo, Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado. Agencia de Extensión Rural Chascomús; Argentina Fil: Pistorio, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Biotecnología y Biología Molecular (IBBM); Argentina Fil: Pistorio, Mariano. Universidad Nacional de La Plata (UNLP). Instituto de Biotecnología y Biología Molecular (IBBM); Argentina Fil: Estrella, María Julia. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto Tecnológico Chascomús (INTECH); Argentina Fil: Estrella, María Julia. Universidad Nacional de San Martín (UNSAM). Instituto Tecnológico Chascomús (INTECH); Argentina 2024-11-12T17:31:25Z 2024-11-12T17:31:25Z 2024-05-25 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/20249 https://link.springer.com/article/10.1007/s00284-024-03704-x 0343-8651 1432-0991 (online) https://doi.org/10.1007/s00284-024-03704-x 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 Current Microbiology 81 : article number: 189 (2024) |
| spellingShingle | Rizobacteria Forrajes Suelo Alcalino Suelo Sódico Panicum coloratum Rhizobacteria Forage Alkaline Soils Sodic Soils Suelo Alcalino Sódico Flooding Pampa Phosphate Solubilizing Bacteria Dip, Diana Patricia Sannazzaro, Analía Inés Otondo, Jose Pistorio, Mariano Estrella, María Julia Exploring Phosphate Solubilizing Bacterial Communities in Rhizospheres of Native and Exotic Forage Grasses in Alkaline‑Sodic Soils of the Flooding Pampa |
| title | Exploring Phosphate Solubilizing Bacterial Communities in Rhizospheres of Native and Exotic Forage Grasses in Alkaline‑Sodic Soils of the Flooding Pampa |
| title_full | Exploring Phosphate Solubilizing Bacterial Communities in Rhizospheres of Native and Exotic Forage Grasses in Alkaline‑Sodic Soils of the Flooding Pampa |
| title_fullStr | Exploring Phosphate Solubilizing Bacterial Communities in Rhizospheres of Native and Exotic Forage Grasses in Alkaline‑Sodic Soils of the Flooding Pampa |
| title_full_unstemmed | Exploring Phosphate Solubilizing Bacterial Communities in Rhizospheres of Native and Exotic Forage Grasses in Alkaline‑Sodic Soils of the Flooding Pampa |
| title_short | Exploring Phosphate Solubilizing Bacterial Communities in Rhizospheres of Native and Exotic Forage Grasses in Alkaline‑Sodic Soils of the Flooding Pampa |
| title_sort | exploring phosphate solubilizing bacterial communities in rhizospheres of native and exotic forage grasses in alkaline sodic soils of the flooding pampa |
| topic | Rizobacteria Forrajes Suelo Alcalino Suelo Sódico Panicum coloratum Rhizobacteria Forage Alkaline Soils Sodic Soils Suelo Alcalino Sódico Flooding Pampa Phosphate Solubilizing Bacteria |
| url | http://hdl.handle.net/20.500.12123/20249 https://link.springer.com/article/10.1007/s00284-024-03704-x https://doi.org/10.1007/s00284-024-03704-x |
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