| Range |
Table - link
|
| Organism |
Plants |
| Reference |
Leigh R.A. (1997). Solute composition of vacuoles. In Advances in Botanical Research, Vol. 25: The Plant Vacuole, Leigh R.A., Sanders D., eds (London:Academic Press), pp. 171–194. p.187 table III |
| Primary Source |
Pitman, M. G., Courtice, A. C. and Lee, B. (1968). Comparison of potassium and sodium uptake by barley roots at high and low salt status. Australian Journal of Biological Sciences 21, 871-881. & Pitman, M. G., Mowat, J . and Nair, H. (1971). Interactions between processes for the accumulation of salt and sugar in barley plants. Australian Journal of Biological Sciences 24, 619-631. & Pritchard, J., Tomos, A. D. and Wyn Jones, R. G. (1987). Control of wheat root elongation growth. I. Effects of ions on growth rate, wall rheology and cell water relations. Journal of Experimental Botany 38, 948-959. |
| Comments |
"A salt-dependent change in turgor also occurs in cereal roots. When grown
in “low salt” conditions (i.e. in 0.5 mM CaS04 only) the roots contain high
concentration of hexose (Table III, Pitman et al., 1971, 2nd primary source), presumably because
the seed supply of ions is insufficient to meet fully the osmotic needs of the
cells, and so sugars are diverted into this role. When transferred to “high
salt” conditions (a solution containing dilute salts), ions are absorbed and the sugar level declines (Table III, Pitman et al., 1968, 1971, 1st & 2nd primary sources). Measurements
of turgor in mature cells of wheat roots grown under similar conditions show
that the transition from “low” to “high” salt status is accompanied by an
increase in turgor (Table III, Pritchard et al., 1987 (3rd primary source), 1989)." |
| Entered by |
Uri M |
| ID |
110400 |