
%0 Journal Article
%A Jones, RGW 
%A Storey, R 
%T Salt Stress and Comparative Physiology in the Gramineae. IV. Comparison of Salt Stress in <I>Spartina &#215; townsendii</I> and Three Barley Cultivars
%J Functional Plant Biology
%D 1978/12/01
%V 5
%N 6
%P 839-850
%K 
%R https://doi.org/10.1071/PP9780839
%U https://www.publish.csiro.au/paper/PP9780839 
%X The possible significance of the compartmentation of major solutes between cytoplasm and vacuole is described. The barley cultivars appear to have a restricted ability, by comparison with S. &#215; townsendii, to exploit Na+ and Cl- as major vacuolar ions and contributors to osmotic adjustment. They also appear less able to maintain a basal K- supply in the presence of Na+. The basal K+ supply to the shoot is interpreted as a requirement for a minimal cytoplasmic K+ concentration. The role of glycinebetaine and proline as cytoplasmic osmotic effectors is discussed. It is concluded that, in these hydroponic experiments, the synthesis of glycinebetaine and proline is not a limitation on the salt tolerance of these species. 
