Utilization of <i>Gluconacetobacter diazotrophicus</i> in Tomato Crop: Interaction with Nitrogen and Phosphorus Fertilization
<i>Gluconacetobacter diazotrophicus</i> is a nitrogen-fixing bacterium capable of colonizing different host plants. This work evaluated the impact of Colombian native isolate <i>G. diazotrophicus</i> GIBI029 on tomato yield and quality in response to nitrogen and phosphorus f...
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MDPI AG
2025-05-01
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| author | Nelson Ceballos-Aguirre Gloria M. Restrepo Sergio Patiño Jorge A. Cuéllar Óscar J. Sánchez |
| author_facet | Nelson Ceballos-Aguirre Gloria M. Restrepo Sergio Patiño Jorge A. Cuéllar Óscar J. Sánchez |
| author_sort | Nelson Ceballos-Aguirre |
| collection | DOAJ |
| description | <i>Gluconacetobacter diazotrophicus</i> is a nitrogen-fixing bacterium capable of colonizing different host plants. This work evaluated the impact of Colombian native isolate <i>G. diazotrophicus</i> GIBI029 on tomato yield and quality in response to nitrogen and phosphorus fertilization levels. The experiment was conducted under semi-controlled conditions using a split-plot design with four replicates and ten plants per treatment. Variables assessed included fruit count per plant, fruit weight, average fruit weight, production per plant, and yield. Application of GIBI029 without fertilization resulted in a higher number and weight of fruits per plant across harvests (7.1 fruits, 509.2 g) compared to both the unfertilized control (4.8 fruits, 271.7 g) and with complete nitrogen and phosphorus fertilization (5.2 fruits, 288.8 g). The behavior of these variables were similar for GIBI029 and complete fertilization (7.0 fruits and 510.7 g per harvest). The highest yields were obtained with GIBI029 without fertilization (106.1 t ha<sup>−1</sup>) and with full nitrogen and phosphorus fertilization (106.4 t ha<sup>−1</sup>). Under the evaluated conditions, native <i>G. diazotrophicus</i> GIBI029 isolate could effectively improve tomato growth and yield in contrast to the controls. Based on these findings, the reproducibility of this behavior should be confirmed, and the mechanisms involved in the plant–bacteria interaction should be determined. |
| format | Article |
| id | doaj-art-1bb449687a5f4b8091ab1f6f3b237267 |
| institution | OA Journals |
| issn | 2077-0472 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
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| series | Agriculture |
| spelling | doaj-art-1bb449687a5f4b8091ab1f6f3b2372672025-08-20T02:33:07ZengMDPI AGAgriculture2077-04722025-05-011511119110.3390/agriculture15111191Utilization of <i>Gluconacetobacter diazotrophicus</i> in Tomato Crop: Interaction with Nitrogen and Phosphorus FertilizationNelson Ceballos-Aguirre0Gloria M. Restrepo1Sergio Patiño2Jorge A. Cuéllar3Óscar J. Sánchez4Faculty of Agricultural Sciences, Universidad de Caldas, Manizales 170004, ColombiaFaculty of Health Sciences, Research Institute in Microbiology and Agro-Industrial Biotechnology, Universidad Católica de Manizales, Manizales 170002, ColombiaFaculty of Agricultural Sciences, Universidad de Caldas, Manizales 170004, ColombiaFaculty of Health Sciences, Research Institute in Microbiology and Agro-Industrial Biotechnology, Universidad Católica de Manizales, Manizales 170002, ColombiaCenter for Technological Development—Bioprocess and Agro-Industry Plant, Department of Engineering, Universidad de Caldas, Manizales 170004, Colombia<i>Gluconacetobacter diazotrophicus</i> is a nitrogen-fixing bacterium capable of colonizing different host plants. This work evaluated the impact of Colombian native isolate <i>G. diazotrophicus</i> GIBI029 on tomato yield and quality in response to nitrogen and phosphorus fertilization levels. The experiment was conducted under semi-controlled conditions using a split-plot design with four replicates and ten plants per treatment. Variables assessed included fruit count per plant, fruit weight, average fruit weight, production per plant, and yield. Application of GIBI029 without fertilization resulted in a higher number and weight of fruits per plant across harvests (7.1 fruits, 509.2 g) compared to both the unfertilized control (4.8 fruits, 271.7 g) and with complete nitrogen and phosphorus fertilization (5.2 fruits, 288.8 g). The behavior of these variables were similar for GIBI029 and complete fertilization (7.0 fruits and 510.7 g per harvest). The highest yields were obtained with GIBI029 without fertilization (106.1 t ha<sup>−1</sup>) and with full nitrogen and phosphorus fertilization (106.4 t ha<sup>−1</sup>). Under the evaluated conditions, native <i>G. diazotrophicus</i> GIBI029 isolate could effectively improve tomato growth and yield in contrast to the controls. Based on these findings, the reproducibility of this behavior should be confirmed, and the mechanisms involved in the plant–bacteria interaction should be determined.https://www.mdpi.com/2077-0472/15/11/1191Colombian native isolatefruit count per plantfruit weight per plantgreenhouse cultivationnitrogen fixationplant growth-promoting bacteria |
| spellingShingle | Nelson Ceballos-Aguirre Gloria M. Restrepo Sergio Patiño Jorge A. Cuéllar Óscar J. Sánchez Utilization of <i>Gluconacetobacter diazotrophicus</i> in Tomato Crop: Interaction with Nitrogen and Phosphorus Fertilization Agriculture Colombian native isolate fruit count per plant fruit weight per plant greenhouse cultivation nitrogen fixation plant growth-promoting bacteria |
| title | Utilization of <i>Gluconacetobacter diazotrophicus</i> in Tomato Crop: Interaction with Nitrogen and Phosphorus Fertilization |
| title_full | Utilization of <i>Gluconacetobacter diazotrophicus</i> in Tomato Crop: Interaction with Nitrogen and Phosphorus Fertilization |
| title_fullStr | Utilization of <i>Gluconacetobacter diazotrophicus</i> in Tomato Crop: Interaction with Nitrogen and Phosphorus Fertilization |
| title_full_unstemmed | Utilization of <i>Gluconacetobacter diazotrophicus</i> in Tomato Crop: Interaction with Nitrogen and Phosphorus Fertilization |
| title_short | Utilization of <i>Gluconacetobacter diazotrophicus</i> in Tomato Crop: Interaction with Nitrogen and Phosphorus Fertilization |
| title_sort | utilization of i gluconacetobacter diazotrophicus i in tomato crop interaction with nitrogen and phosphorus fertilization |
| topic | Colombian native isolate fruit count per plant fruit weight per plant greenhouse cultivation nitrogen fixation plant growth-promoting bacteria |
| url | https://www.mdpi.com/2077-0472/15/11/1191 |
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