Hydrogen peroxide signal photosynthetic acclimation of Solanum lycopersicum L. cv Micro-Tom under water deficit
Abstract The current climate change setting necessitates the development of methods to mitigate the effects of water scarcity to ensure the sustainability of agricultural activities.f Hydrogen peroxide (H2O2) is a plant signaling molecule that can trigger metabolic defense mechanisms in response to...
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| Format: | Article |
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Nature Portfolio
2023-08-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-40388-y |
| _version_ | 1797577066212753408 |
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| author | Gustavo Ribeiro Barzotto Caroline Pardine Cardoso Letícia Galhardo Jorge Felipe Girotto Campos Carmen Sílvia Fernandes Boaro |
| author_facet | Gustavo Ribeiro Barzotto Caroline Pardine Cardoso Letícia Galhardo Jorge Felipe Girotto Campos Carmen Sílvia Fernandes Boaro |
| author_sort | Gustavo Ribeiro Barzotto |
| collection | DOAJ |
| description | Abstract The current climate change setting necessitates the development of methods to mitigate the effects of water scarcity to ensure the sustainability of agricultural activities.f Hydrogen peroxide (H2O2) is a plant signaling molecule that can trigger metabolic defense mechanisms in response to adverse environmental circumstances like as drought. The purpose of this study was to investigate if foliar application of H2O2 stimulates modifications in photosynthetic metabolism for adaptation of tomato plants to a period of water deficit and recovery. The study, which was carried out in a factorial scheme, tested plants subjected to two water conditions (well-watered plants and plants subjected to water deficit), as well as foliar application of 1 mM H2O2 (zero, one, or two applications, 24 h after the first), and was evaluated in two moments, during the deficit period and after recovery. Foliar application of 1 mM H2O2 resulted in a 69% increase in the maximum rate of RuBisCO carboxylation in well-watered plants, contributing to tomato photosynthetic adjustment. H2O2 treatment resulted in a 37% increase in dry mass in these plants. In plants subjected to water deficiency, 2× H2O2 increased stress tolerance by reducing the maximal rate of RuBisCO carboxylation by only 18%, but in plants that did not receive H2O2 treatment, the reduction was 86% in comparison to the wet plants. Plants exposed to a water shortage and given 2× H2O2 stored sucrose in the leaves and had a 17% higher relative water content than plants not given H2O2. Thus, H2O2 foliar treatment can be used in tomato management to induce drought tolerance or to boost photosynthetic activity and dry mass formation in well-watered plants. |
| first_indexed | 2024-03-10T22:02:41Z |
| format | Article |
| id | doaj.art-c3e63d60f2c24951abb51c4c617e3199 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-10T22:02:41Z |
| publishDate | 2023-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-c3e63d60f2c24951abb51c4c617e31992023-11-19T12:54:55ZengNature PortfolioScientific Reports2045-23222023-08-0113111610.1038/s41598-023-40388-yHydrogen peroxide signal photosynthetic acclimation of Solanum lycopersicum L. cv Micro-Tom under water deficitGustavo Ribeiro Barzotto0Caroline Pardine Cardoso1Letícia Galhardo Jorge2Felipe Girotto Campos3Carmen Sílvia Fernandes Boaro4Plant Production Department, School of Agriculture, UNESP—São Paulo State UniversityBiodiversity and Biostatistics Department, Institute of Biosciences, UNESP—São Paulo State UniversityBiodiversity and Biostatistics Department, Institute of Biosciences, UNESP—São Paulo State UniversityBiodiversity and Biostatistics Department, Institute of Biosciences, UNESP—São Paulo State UniversityBiodiversity and Biostatistics Department, Institute of Biosciences, UNESP—São Paulo State UniversityAbstract The current climate change setting necessitates the development of methods to mitigate the effects of water scarcity to ensure the sustainability of agricultural activities.f Hydrogen peroxide (H2O2) is a plant signaling molecule that can trigger metabolic defense mechanisms in response to adverse environmental circumstances like as drought. The purpose of this study was to investigate if foliar application of H2O2 stimulates modifications in photosynthetic metabolism for adaptation of tomato plants to a period of water deficit and recovery. The study, which was carried out in a factorial scheme, tested plants subjected to two water conditions (well-watered plants and plants subjected to water deficit), as well as foliar application of 1 mM H2O2 (zero, one, or two applications, 24 h after the first), and was evaluated in two moments, during the deficit period and after recovery. Foliar application of 1 mM H2O2 resulted in a 69% increase in the maximum rate of RuBisCO carboxylation in well-watered plants, contributing to tomato photosynthetic adjustment. H2O2 treatment resulted in a 37% increase in dry mass in these plants. In plants subjected to water deficiency, 2× H2O2 increased stress tolerance by reducing the maximal rate of RuBisCO carboxylation by only 18%, but in plants that did not receive H2O2 treatment, the reduction was 86% in comparison to the wet plants. Plants exposed to a water shortage and given 2× H2O2 stored sucrose in the leaves and had a 17% higher relative water content than plants not given H2O2. Thus, H2O2 foliar treatment can be used in tomato management to induce drought tolerance or to boost photosynthetic activity and dry mass formation in well-watered plants.https://doi.org/10.1038/s41598-023-40388-y |
| spellingShingle | Gustavo Ribeiro Barzotto Caroline Pardine Cardoso Letícia Galhardo Jorge Felipe Girotto Campos Carmen Sílvia Fernandes Boaro Hydrogen peroxide signal photosynthetic acclimation of Solanum lycopersicum L. cv Micro-Tom under water deficit Scientific Reports |
| title | Hydrogen peroxide signal photosynthetic acclimation of Solanum lycopersicum L. cv Micro-Tom under water deficit |
| title_full | Hydrogen peroxide signal photosynthetic acclimation of Solanum lycopersicum L. cv Micro-Tom under water deficit |
| title_fullStr | Hydrogen peroxide signal photosynthetic acclimation of Solanum lycopersicum L. cv Micro-Tom under water deficit |
| title_full_unstemmed | Hydrogen peroxide signal photosynthetic acclimation of Solanum lycopersicum L. cv Micro-Tom under water deficit |
| title_short | Hydrogen peroxide signal photosynthetic acclimation of Solanum lycopersicum L. cv Micro-Tom under water deficit |
| title_sort | hydrogen peroxide signal photosynthetic acclimation of solanum lycopersicum l cv micro tom under water deficit |
| url | https://doi.org/10.1038/s41598-023-40388-y |
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