Artículo
Improving Grapevine Heat Stress Resilience with Marine Plant Growth-Promoting Rhizobacteria Consortia
Autor/es | Carreiras, Joao
Cruz Silva, Ana Fonseca, Bruno Carvalho, Ricardo C. Cunha, Jorge P. Proenca Pereira, Joao Mateos Naranjo, Enrique Rodríguez Llorente, Ignacio David Pajuelo Domínguez, Eloísa Redondo Gómez, Susana Mesa Marín, Jennifer Duarte, Bernardo |
Departamento | Universidad de Sevilla. Departamento de Biología Vegetal y Ecología Universidad de Sevilla. Departamento de Microbiología y Parasitología |
Fecha de publicación | 2023-03-27 |
Fecha de depósito | 2024-02-16 |
Publicado en |
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Resumen | Amid climate change, heatwave events are expected to increase in frequency and severity. As a result, yield losses in viticulture due to heatwave stress have increased over the years. As one of the most important crops in ... Amid climate change, heatwave events are expected to increase in frequency and severity. As a result, yield losses in viticulture due to heatwave stress have increased over the years. As one of the most important crops in the world, an eco-friendly stress mitigation strategy is greatly needed. The present work aims to evaluate the physiological fitness improvement by two marine plant growth-promoting rhizobacteria consortia in Vitis vinifera cv. Antão Vaz under heatwave conditions. To assess the potential biophysical and biochemical thermal stress feedback amelioration, photochemical traits, pigment and fatty acid profiles, and osmotic and oxidative stress biomarkers were analysed. Bioaugmented grapevines exposed to heatwave stress presented a significantly enhanced photoprotection capability and higher thermo-stability, exhibiting a significantly lower dissipation energy flux than the non-inoculated plants. Additionally, one of the rhizobacterial consortia tested improved light-harvesting capabilities by increasing reaction centre availability and preserving photosynthetic efficiency. Rhizobacteria inoculation expressed an osmoprotectant promotion, revealed by the lower osmolyte concentration while maintaining leaf turgidity. Improved antioxidant mechanisms and membrane stability resulted in lowered lipid peroxidation product formation when compared to non-inoculated plants. Although the consortia were found to differ significantly in their effectiveness, these findings demonstrate that bioaugmentation induced significant heatwave stress tolerance and mitigation. This study revealed the promising usage of marine PGPR consortia to promote plant fitness and minimize heatwave impacts in grapevines. |
Agencias financiadoras | Fundação para a Ciência e a Tecnologia (FCT) |
Identificador del proyecto | UIDB/04292/2020
UIDP/04292/2020 UID/MULTI/04046/2019 |
Cita | Carreiras, J., Cruz Silva, A., Fonseca, B., Carvalho, R.C., Cunha, J.P., Proenca Pereira, J.,...,Duarte, B. (2023). Improving Grapevine Heat Stress Resilience with Marine Plant Growth-Promoting Rhizobacteria Consortia. Microorganisms, 11 (4), 856. https://doi.org/10.3390/microorganisms11040856. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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Improving Grapevine.pdf | 5.067Mb | [PDF] | Ver/ | Versión publicada |