Localisation of iron and zinc in grain of biofortified wheat
The dietary contributions of iron (Fe) and zinc (Zn) from cereals are determined by concentrations, locations and chemical forms. A genetically biofortified wheat line showed higher concentrations of Zn and Fe than three control lines when grown over two years. The mineral distributions determined u...
| Autores principales: | , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2022
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/126500 |
| _version_ | 1855521191882653696 |
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| author | Yongfang Wan Stewart, Theodora Amrahli, Maral Evans, Jessica Sharp, Paul Velu, Govindan Hawkesford, Malcolm John Shewry, Peter |
| author_browse | Amrahli, Maral Evans, Jessica Hawkesford, Malcolm John Sharp, Paul Shewry, Peter Stewart, Theodora Velu, Govindan Yongfang Wan |
| author_facet | Yongfang Wan Stewart, Theodora Amrahli, Maral Evans, Jessica Sharp, Paul Velu, Govindan Hawkesford, Malcolm John Shewry, Peter |
| author_sort | Yongfang Wan |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The dietary contributions of iron (Fe) and zinc (Zn) from cereals are determined by concentrations, locations and chemical forms. A genetically biofortified wheat line showed higher concentrations of Zn and Fe than three control lines when grown over two years. The mineral distributions determined using imaging (histochemical staining and LA-ICP-MS), sequential pearling and hand dissection showed no consistent differences between the two lines. Fe was most abundant in the aleurone layer and the scutellum and Zn in the scutellar epithelium, the endosperm transfer cells and embryonic axis. Pearling fractions showed positive correlations between the concentration of P and those of Zn and Fe in all fractions except the outermost layer. This is consistent with Fe and Zn being concentrated in phytates. Developing grains showed decreasing gradients in concentration from the proximal to the distal ends. The concentrations of Fe and Zn were therefore higher in the biofortified line than the control lines but their locations did not differ. |
| format | Journal Article |
| id | CGSpace126500 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1265002025-11-06T13:04:26Z Localisation of iron and zinc in grain of biofortified wheat Yongfang Wan Stewart, Theodora Amrahli, Maral Evans, Jessica Sharp, Paul Velu, Govindan Hawkesford, Malcolm John Shewry, Peter biofortification iron trace elements wheat zinc The dietary contributions of iron (Fe) and zinc (Zn) from cereals are determined by concentrations, locations and chemical forms. A genetically biofortified wheat line showed higher concentrations of Zn and Fe than three control lines when grown over two years. The mineral distributions determined using imaging (histochemical staining and LA-ICP-MS), sequential pearling and hand dissection showed no consistent differences between the two lines. Fe was most abundant in the aleurone layer and the scutellum and Zn in the scutellar epithelium, the endosperm transfer cells and embryonic axis. Pearling fractions showed positive correlations between the concentration of P and those of Zn and Fe in all fractions except the outermost layer. This is consistent with Fe and Zn being concentrated in phytates. Developing grains showed decreasing gradients in concentration from the proximal to the distal ends. The concentrations of Fe and Zn were therefore higher in the biofortified line than the control lines but their locations did not differ. 2022-05 2023-01-03T14:13:00Z 2023-01-03T14:13:00Z Journal Article https://hdl.handle.net/10568/126500 en Open Access application/pdf Elsevier Wan, Y., Stewart, T., Amrahli, M., Evans, J., Sharp, P., Govindan, V., Hawkesford, M. J., & Shewry, P. R. (2022). Localisation of iron and zinc in grain of biofortified wheat. Journal of Cereal Science, 105, 103470. https://doi.org/10.1016/j.jcs.2022.103470 |
| spellingShingle | biofortification iron trace elements wheat zinc Yongfang Wan Stewart, Theodora Amrahli, Maral Evans, Jessica Sharp, Paul Velu, Govindan Hawkesford, Malcolm John Shewry, Peter Localisation of iron and zinc in grain of biofortified wheat |
| title | Localisation of iron and zinc in grain of biofortified wheat |
| title_full | Localisation of iron and zinc in grain of biofortified wheat |
| title_fullStr | Localisation of iron and zinc in grain of biofortified wheat |
| title_full_unstemmed | Localisation of iron and zinc in grain of biofortified wheat |
| title_short | Localisation of iron and zinc in grain of biofortified wheat |
| title_sort | localisation of iron and zinc in grain of biofortified wheat |
| topic | biofortification iron trace elements wheat zinc |
| url | https://hdl.handle.net/10568/126500 |
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