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X-ray microanalysis of ion distribution within root cortical cells of the halophyte Suaeda maritima (L.) Dum.
journal contributionposted on 2023-06-08, 11:32 authored by M A Hajibagheri, Tim Flowers
The ion content of compartments within cortical cells of mature roots of the halophyte Suaeda maritima grown at 200 mom-3 NaCl has been studied by X-ray microanalysis of freeze-substituted thin sections. Sodium and Cl were found in the vacuoles at about four-times the concentration in the cytoplasm or cell walls, whereas K was more concentrated in the cell walls and cytoplasm than in vacuoles. The vacuolar Na concentration was 12- to 13-times higher than that of K. The Na concentration of cell walls of cortical cells was about 95 mom-3 of analysed volume. The cytoplasmic K concentration within the mature cortical cells was estimated to be 55 mom-3 of analysed volume.
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- Evolution, Behaviour and Environment Publications
NotesTimes Cited: 22 Hajibagheri, ma flowers, tj
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