Plant Growth-Promoting Rhizobacteria Improve Rice Response to Climate Change Conditions
Rice is one of the most important crops in the world and is considered a strategic crop for food security. Furthermore, the excessive use of chemical fertilizers to obtain high yields causes environmental problems. A sustainable alternative includes taking advantage of beneficial bacteria that promo...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Plants |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2223-7747/12/13/2532 |
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| author | Susana Redondo-Gómez Jennifer Mesa-Marín Jesús A. Pérez-Romero Vicente Mariscal Fernando P. Molina-Heredia Consolación Álvarez Eloísa Pajuelo Ignacio D. Rodríguez-Llorente Enrique Mateos-Naranjo |
| author_facet | Susana Redondo-Gómez Jennifer Mesa-Marín Jesús A. Pérez-Romero Vicente Mariscal Fernando P. Molina-Heredia Consolación Álvarez Eloísa Pajuelo Ignacio D. Rodríguez-Llorente Enrique Mateos-Naranjo |
| author_sort | Susana Redondo-Gómez |
| collection | DOAJ |
| description | Rice is one of the most important crops in the world and is considered a strategic crop for food security. Furthermore, the excessive use of chemical fertilizers to obtain high yields causes environmental problems. A sustainable alternative includes taking advantage of beneficial bacteria that promote plant growth. Here, we investigate the effect of five bacterial biofertilizers from halophytes on growth, and we investigate photosynthetic efficiency in rice plants grown under saline conditions (0 and 85 mmol L<sup>−1</sup> NaCl) and future climate change scenarios, including increased CO<sub>2</sub> concentrations and temperature (400/700 ppm and 25/+4 °C, respectively). Biofertilizers 1–4 increased growth by 9–64% in plants grown with and without salt in both CO<sub>2</sub>- temperature combinations, although there was no significant positive effect on the net photosynthetic rate of rice plants. In general, biofertilizer 1 was the most effective at 400 ppm CO<sub>2</sub> and at 700 ppm CO<sub>2</sub> +4 °C in the absence of salt. Inocula 1–5 also stimulated plant length at high CO<sub>2</sub> levels without salt. Finally, the positive effect of biofertilization was attenuated in the plants grown under the interaction between salt and high CO<sub>2</sub>. This highlights the significance of studying biofertilization under stress interaction to establish the real potential of biofertilizers in the context of climate change conditions. |
| first_indexed | 2024-03-11T01:31:34Z |
| format | Article |
| id | doaj.art-aa2479f273464732b2861aebb0ebbfef |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-11T01:31:34Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-aa2479f273464732b2861aebb0ebbfef2023-11-18T17:18:50ZengMDPI AGPlants2223-77472023-07-011213253210.3390/plants12132532Plant Growth-Promoting Rhizobacteria Improve Rice Response to Climate Change ConditionsSusana Redondo-Gómez0Jennifer Mesa-Marín1Jesús A. Pérez-Romero2Vicente Mariscal3Fernando P. Molina-Heredia4Consolación Álvarez5Eloísa Pajuelo6Ignacio D. Rodríguez-Llorente7Enrique Mateos-Naranjo8Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, 41012 Seville, SpainDepartamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, 41012 Seville, SpainDepartamento de Biología, Instituto Universitario de Investigación Marina (INMAR), Universidad de Cádiz, 11510 Puerto Real, SpainInstituto de Bioquímica Vegetal y Fotosíntesis, cicCartuja, Universidad de Sevilla and CSIC, 41092 Seville, SpainInstituto de Bioquímica Vegetal y Fotosíntesis, cicCartuja, Universidad de Sevilla and CSIC, 41092 Seville, SpainInstituto de Bioquímica Vegetal y Fotosíntesis, cicCartuja, Universidad de Sevilla and CSIC, 41092 Seville, SpainDepartamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad de Sevilla, 41012 Seville, SpainDepartamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad de Sevilla, 41012 Seville, SpainDepartamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, 41012 Seville, SpainRice is one of the most important crops in the world and is considered a strategic crop for food security. Furthermore, the excessive use of chemical fertilizers to obtain high yields causes environmental problems. A sustainable alternative includes taking advantage of beneficial bacteria that promote plant growth. Here, we investigate the effect of five bacterial biofertilizers from halophytes on growth, and we investigate photosynthetic efficiency in rice plants grown under saline conditions (0 and 85 mmol L<sup>−1</sup> NaCl) and future climate change scenarios, including increased CO<sub>2</sub> concentrations and temperature (400/700 ppm and 25/+4 °C, respectively). Biofertilizers 1–4 increased growth by 9–64% in plants grown with and without salt in both CO<sub>2</sub>- temperature combinations, although there was no significant positive effect on the net photosynthetic rate of rice plants. In general, biofertilizer 1 was the most effective at 400 ppm CO<sub>2</sub> and at 700 ppm CO<sub>2</sub> +4 °C in the absence of salt. Inocula 1–5 also stimulated plant length at high CO<sub>2</sub> levels without salt. Finally, the positive effect of biofertilization was attenuated in the plants grown under the interaction between salt and high CO<sub>2</sub>. This highlights the significance of studying biofertilization under stress interaction to establish the real potential of biofertilizers in the context of climate change conditions.https://www.mdpi.com/2223-7747/12/13/2532bacterial consortiumefficiency of PSII photochemistryelevated atmospheric CO<sub>2</sub>gas exchangeinoculationPGPR |
| spellingShingle | Susana Redondo-Gómez Jennifer Mesa-Marín Jesús A. Pérez-Romero Vicente Mariscal Fernando P. Molina-Heredia Consolación Álvarez Eloísa Pajuelo Ignacio D. Rodríguez-Llorente Enrique Mateos-Naranjo Plant Growth-Promoting Rhizobacteria Improve Rice Response to Climate Change Conditions Plants bacterial consortium efficiency of PSII photochemistry elevated atmospheric CO<sub>2</sub> gas exchange inoculation PGPR |
| title | Plant Growth-Promoting Rhizobacteria Improve Rice Response to Climate Change Conditions |
| title_full | Plant Growth-Promoting Rhizobacteria Improve Rice Response to Climate Change Conditions |
| title_fullStr | Plant Growth-Promoting Rhizobacteria Improve Rice Response to Climate Change Conditions |
| title_full_unstemmed | Plant Growth-Promoting Rhizobacteria Improve Rice Response to Climate Change Conditions |
| title_short | Plant Growth-Promoting Rhizobacteria Improve Rice Response to Climate Change Conditions |
| title_sort | plant growth promoting rhizobacteria improve rice response to climate change conditions |
| topic | bacterial consortium efficiency of PSII photochemistry elevated atmospheric CO<sub>2</sub> gas exchange inoculation PGPR |
| url | https://www.mdpi.com/2223-7747/12/13/2532 |
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