PGPR-based biofertilizer modulates strawberry photosynthetic apparatus tolerance responses by severe drought, soil salinization and short extreme heat event
Drought, soil salinization and the extreme heat events increments associate to climate change will notably impact sensitive crop species, such as strawberry. A greenhouse experiment was arranged to evaluate the potential of a PGPR-based biofertilizer, with multiple PGP properties, including ACC deam...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-06-01
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| Series: | Plant Stress |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667064X24001027 |
| _version_ | 1797234292752908288 |
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| author | Jesús V. García-López Susana Redondo-Gómez Noris J. Flores-Duarte Ignacio D. Rodríguez-Llorente Eloísa Pajuelo Enrique Mateos-Naranjo |
| author_facet | Jesús V. García-López Susana Redondo-Gómez Noris J. Flores-Duarte Ignacio D. Rodríguez-Llorente Eloísa Pajuelo Enrique Mateos-Naranjo |
| author_sort | Jesús V. García-López |
| collection | DOAJ |
| description | Drought, soil salinization and the extreme heat events increments associate to climate change will notably impact sensitive crop species, such as strawberry. A greenhouse experiment was arranged to evaluate the potential of a PGPR-based biofertilizer, with multiple PGP properties, including ACC deaminase production highly related to the limitation of ethylene levels under abiotic stress, in modulation of photosynthetic apparatus tolerance responses by severe drought (complete water withholding), salinity in irrigation water (340 mM NaCl) and short extreme heat event (37/28 °C maximum and minimum temperature range). Our results show that all stress factors triggered acute injury effects on strawberry carboxylation capacity and photosystem II energy assimilation efficiency ability; whose intensity varied depending on factor nature. However, bacterial inoculation diminished ∼67 %, 20 % and 18 % the deleterious impact imposed by drought, heat and salinity stress on the net photosynthetic rate (AN). This effect was primarily mediated by counterbalancing the diffusion of CO2 in the stomata and biochemical limitations in response to heat and salinity stress, while the reduction of biochemical damage was more notable in response to drought. Complementarily, inoculation was able to highly buffer the photochemical limitations imposed by all abiotic stress factors tested. Despite these positive effects, the application of PGPR-based biofertilizer was unable to completely reverse the impact of stress factors on strawberry photosynthesis metabolism. However, the signal of these ameliorative effects was significant enough to consider the implementation of PGPR-based biofertilizer application as a complementary tool in the management of strawberry cultivation in increasingly stressful agronomic contexts. |
| first_indexed | 2024-04-24T16:29:45Z |
| format | Article |
| id | doaj.art-cd75ded3922c4bf99c69059ba468bbc3 |
| institution | Directory Open Access Journal |
| issn | 2667-064X |
| language | English |
| last_indexed | 2024-04-24T16:29:45Z |
| publishDate | 2024-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Plant Stress |
| spelling | doaj.art-cd75ded3922c4bf99c69059ba468bbc32024-03-30T04:40:17ZengElsevierPlant Stress2667-064X2024-06-0112100448PGPR-based biofertilizer modulates strawberry photosynthetic apparatus tolerance responses by severe drought, soil salinization and short extreme heat eventJesús V. García-López0Susana Redondo-Gómez1Noris J. Flores-Duarte2Ignacio D. Rodríguez-Llorente3Eloísa Pajuelo4Enrique Mateos-Naranjo5Servicio General de Invernadero, Centro de Investigación, Tecnología e Innovación (CITIUS), Universidad de Sevilla 41012 Seville, SpainDepartamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla 41012 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 Microbiología y Parasitología, Facultad de Farmacia, Universidad de Sevilla 41012 Seville, SpainServicio General de Invernadero, Centro de Investigación, Tecnología e Innovación (CITIUS), Universidad de Sevilla 41012 Seville, Spain; Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla 41012 Seville, Spain; Corresponding author.Drought, soil salinization and the extreme heat events increments associate to climate change will notably impact sensitive crop species, such as strawberry. A greenhouse experiment was arranged to evaluate the potential of a PGPR-based biofertilizer, with multiple PGP properties, including ACC deaminase production highly related to the limitation of ethylene levels under abiotic stress, in modulation of photosynthetic apparatus tolerance responses by severe drought (complete water withholding), salinity in irrigation water (340 mM NaCl) and short extreme heat event (37/28 °C maximum and minimum temperature range). Our results show that all stress factors triggered acute injury effects on strawberry carboxylation capacity and photosystem II energy assimilation efficiency ability; whose intensity varied depending on factor nature. However, bacterial inoculation diminished ∼67 %, 20 % and 18 % the deleterious impact imposed by drought, heat and salinity stress on the net photosynthetic rate (AN). This effect was primarily mediated by counterbalancing the diffusion of CO2 in the stomata and biochemical limitations in response to heat and salinity stress, while the reduction of biochemical damage was more notable in response to drought. Complementarily, inoculation was able to highly buffer the photochemical limitations imposed by all abiotic stress factors tested. Despite these positive effects, the application of PGPR-based biofertilizer was unable to completely reverse the impact of stress factors on strawberry photosynthesis metabolism. However, the signal of these ameliorative effects was significant enough to consider the implementation of PGPR-based biofertilizer application as a complementary tool in the management of strawberry cultivation in increasingly stressful agronomic contexts.http://www.sciencedirect.com/science/article/pii/S2667064X24001027Chlorophyll fluorescenceDroughtGas exchangePGPR-based biofertilizersSalinitystrawberry |
| spellingShingle | Jesús V. García-López Susana Redondo-Gómez Noris J. Flores-Duarte Ignacio D. Rodríguez-Llorente Eloísa Pajuelo Enrique Mateos-Naranjo PGPR-based biofertilizer modulates strawberry photosynthetic apparatus tolerance responses by severe drought, soil salinization and short extreme heat event Plant Stress Chlorophyll fluorescence Drought Gas exchange PGPR-based biofertilizers Salinity strawberry |
| title | PGPR-based biofertilizer modulates strawberry photosynthetic apparatus tolerance responses by severe drought, soil salinization and short extreme heat event |
| title_full | PGPR-based biofertilizer modulates strawberry photosynthetic apparatus tolerance responses by severe drought, soil salinization and short extreme heat event |
| title_fullStr | PGPR-based biofertilizer modulates strawberry photosynthetic apparatus tolerance responses by severe drought, soil salinization and short extreme heat event |
| title_full_unstemmed | PGPR-based biofertilizer modulates strawberry photosynthetic apparatus tolerance responses by severe drought, soil salinization and short extreme heat event |
| title_short | PGPR-based biofertilizer modulates strawberry photosynthetic apparatus tolerance responses by severe drought, soil salinization and short extreme heat event |
| title_sort | pgpr based biofertilizer modulates strawberry photosynthetic apparatus tolerance responses by severe drought soil salinization and short extreme heat event |
| topic | Chlorophyll fluorescence Drought Gas exchange PGPR-based biofertilizers Salinity strawberry |
| url | http://www.sciencedirect.com/science/article/pii/S2667064X24001027 |
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