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Localisation of iron and zinc in grain of biofortified wheat

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Title Localisation of iron and zinc in grain of biofortified wheat
 
Creator Yongfang Wan
Stewart, Theodora
Amrahli, Maral
Evans, Jessica
Sharp, Paul
Velu, Govindan
Hawkesford, Malcolm J.
Shewry, Peter
 
Subject biofortification
iron
trace elements
wheat
zinc
 
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.
 
Date 2022-05-30
2023-01-03T14:13:00Z
2023-01-03T14:13:00Z
 
Type Journal Article
 
Identifier 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://hdl.handle.net/10883/22055
0733-5210
https://hdl.handle.net/10568/126500
https://hdl.handle.net/10883/22055
https://doi.org/10.1016/j.jcs.2022.103470
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format application/pdf
 
Publisher Elsevier
 
Source Journal of Cereal Science