Silicon mitigates iron deficiency in two energy cane cultivars by modulating physiological and nutritional mechanisms
IntroductionAlkaline soils with iron (Fe) deficiency are found in many regions of the world, and the use of silicon (Si) can mitigate the damages caused by such deficiency. The aim of this study was to evaluate the effect of Si in mitigating a moderate deficiency of Fe in two energy cane cultivars.M...
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Frontiers Media S.A.
2023-05-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2023.1204836/full |
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| author | Gelza Carliane Marques Teixeira Renato de Mello Prado Antonio Márcio Souza Rocha Murilo Bassan Princi Caio Soares de Andrade |
| author_facet | Gelza Carliane Marques Teixeira Renato de Mello Prado Antonio Márcio Souza Rocha Murilo Bassan Princi Caio Soares de Andrade |
| author_sort | Gelza Carliane Marques Teixeira |
| collection | DOAJ |
| description | IntroductionAlkaline soils with iron (Fe) deficiency are found in many regions of the world, and the use of silicon (Si) can mitigate the damages caused by such deficiency. The aim of this study was to evaluate the effect of Si in mitigating a moderate deficiency of Fe in two energy cane cultivars.MethodsTwo experiments were performed, one with the VX2 cultivar and the other with the VX3 cultivar of energy cane, which were cultivated in pots with sand and a nutrient solution. In both experiments, treatments followed a factorial scheme 2x2, designed based on the sufficiency and deficiency of Fe, being combined with the absence or presence of Si (2.5 mmol L-1), disposed in a randomized blocks design with six replicates. In the condition of Fe sufficiency, plants were cultivated in a solution containing 368 µmol L-1 of Fe, while plants cultivated under deficiency were initially submitted to cultivation with a 54 µmol L-1 concentration of Fe for 30 days, and later, with Fe complete omission for 60 days. The supply of Si was carried out by applying 15 fertirrigations with Si (via root and leaf) during the initial stage of seedling development, and after transplanting, the nutrient solution was added daily (via root).Results and discussionBoth cultivars of energy cane were sensitive to Fe deficiency in the absence of Si, impairing its growth by causing stress and pigment degradation, thus reducing the photosynthesis efficiency. The supply of Si mitigated the damages caused by Fe deficiency in both cultivars, by increasing Fe accumulation in new and intermediate leaves, stem, and roots in the VX2 cultivar, and in new, intermediate, and old leaves and stem in the VX3 cultivar, which in turn reduced stress and favored both the nutritional and photosynthesis efficiency, while increasing the dry matter production. Si by modulating physiological and nutritional mechanisms, mitigates Fe deficiency in two energy cane cultivars. It was concluded that Si can be used as a strategy to improve growth and nutrition of energy cane in environments that are susceptible to Fe deficiency. |
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| format | Article |
| id | doaj.art-bae7e8386e1f41e7bfb73265ab63a300 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-03-13T08:24:08Z |
| publishDate | 2023-05-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Plant Science |
| spelling | doaj.art-bae7e8386e1f41e7bfb73265ab63a3002023-05-31T05:01:23ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-05-011410.3389/fpls.2023.12048361204836Silicon mitigates iron deficiency in two energy cane cultivars by modulating physiological and nutritional mechanismsGelza Carliane Marques Teixeira0Renato de Mello Prado1Antonio Márcio Souza Rocha2Murilo Bassan Princi3Caio Soares de Andrade4Laboratory of Plant Nutrition, Department of Agricultural Sciences, São Paulo State University (UNESP), Jaboticabal, São Paulo, BrazilLaboratory of Plant Nutrition, Department of Agricultural Sciences, São Paulo State University (UNESP), Jaboticabal, São Paulo, BrazilLaboratory of Biogeochemistry, Department of Technology, São Paulo State University (UNESP), Jaboticabal, São Paulo, BrazilLaboratory of Plant Nutrition, Department of Agricultural Sciences, São Paulo State University (UNESP), Jaboticabal, São Paulo, BrazilLaboratory of Plant Nutrition, Department of Agricultural Sciences, São Paulo State University (UNESP), Jaboticabal, São Paulo, BrazilIntroductionAlkaline soils with iron (Fe) deficiency are found in many regions of the world, and the use of silicon (Si) can mitigate the damages caused by such deficiency. The aim of this study was to evaluate the effect of Si in mitigating a moderate deficiency of Fe in two energy cane cultivars.MethodsTwo experiments were performed, one with the VX2 cultivar and the other with the VX3 cultivar of energy cane, which were cultivated in pots with sand and a nutrient solution. In both experiments, treatments followed a factorial scheme 2x2, designed based on the sufficiency and deficiency of Fe, being combined with the absence or presence of Si (2.5 mmol L-1), disposed in a randomized blocks design with six replicates. In the condition of Fe sufficiency, plants were cultivated in a solution containing 368 µmol L-1 of Fe, while plants cultivated under deficiency were initially submitted to cultivation with a 54 µmol L-1 concentration of Fe for 30 days, and later, with Fe complete omission for 60 days. The supply of Si was carried out by applying 15 fertirrigations with Si (via root and leaf) during the initial stage of seedling development, and after transplanting, the nutrient solution was added daily (via root).Results and discussionBoth cultivars of energy cane were sensitive to Fe deficiency in the absence of Si, impairing its growth by causing stress and pigment degradation, thus reducing the photosynthesis efficiency. The supply of Si mitigated the damages caused by Fe deficiency in both cultivars, by increasing Fe accumulation in new and intermediate leaves, stem, and roots in the VX2 cultivar, and in new, intermediate, and old leaves and stem in the VX3 cultivar, which in turn reduced stress and favored both the nutritional and photosynthesis efficiency, while increasing the dry matter production. Si by modulating physiological and nutritional mechanisms, mitigates Fe deficiency in two energy cane cultivars. It was concluded that Si can be used as a strategy to improve growth and nutrition of energy cane in environments that are susceptible to Fe deficiency.https://www.frontiersin.org/articles/10.3389/fpls.2023.1204836/fullabiotic stressbeneficial elementdefense mechanismsmodulating agentnutritional efficiency |
| spellingShingle | Gelza Carliane Marques Teixeira Renato de Mello Prado Antonio Márcio Souza Rocha Murilo Bassan Princi Caio Soares de Andrade Silicon mitigates iron deficiency in two energy cane cultivars by modulating physiological and nutritional mechanisms Frontiers in Plant Science abiotic stress beneficial element defense mechanisms modulating agent nutritional efficiency |
| title | Silicon mitigates iron deficiency in two energy cane cultivars by modulating physiological and nutritional mechanisms |
| title_full | Silicon mitigates iron deficiency in two energy cane cultivars by modulating physiological and nutritional mechanisms |
| title_fullStr | Silicon mitigates iron deficiency in two energy cane cultivars by modulating physiological and nutritional mechanisms |
| title_full_unstemmed | Silicon mitigates iron deficiency in two energy cane cultivars by modulating physiological and nutritional mechanisms |
| title_short | Silicon mitigates iron deficiency in two energy cane cultivars by modulating physiological and nutritional mechanisms |
| title_sort | silicon mitigates iron deficiency in two energy cane cultivars by modulating physiological and nutritional mechanisms |
| topic | abiotic stress beneficial element defense mechanisms modulating agent nutritional efficiency |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2023.1204836/full |
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