
TY  - JOUR
A1  - Jones, RGW 
A1  - Storey, R 
T1  - Salt Stress and Comparative Physiology in the Gramineae. IV. Comparison of Salt Stress in <I>Spartina &#215; townsendii</I> and Three Barley Cultivars
JF  - Functional Plant Biology
JO  - Functional Plant Biol.
Y1  - 1978
VL  - 5
IS  - 6
SP  - 839
EP  - 850
KW  - 
UR  - https://doi.org/10.1071/PP9780839 
N2  - 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. 
ER  -

