X-ray microanalysis of ion distribution within root cortical cells of the halophyte Suaeda maritima (L.) Dum.

Hajibagheri, M A and Flowers, T J (1989) X-ray microanalysis of ion distribution within root cortical cells of the halophyte Suaeda maritima (L.) Dum. Planta, 177 (1). pp. 131-134. ISSN 0032-0935

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Abstract

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.

Item Type: Article
Additional Information: Times Cited: 22 Hajibagheri, ma flowers, tj
Keywords: Compartmentation, subcellular, Halophyte, Ion distribution (cell), Root cortex (ion distribution), Salt tolerance, Suaeda (ion distribution)
Schools and Departments: School of Life Sciences > Evolution, Behaviour and Environment
Subjects: Q Science
Depositing User: Catrina Hey
Date Deposited: 10 May 2012 10:53
Last Modified: 19 Mar 2013 14:07
URI: http://sro.sussex.ac.uk/id/eprint/39136
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