
TY  - JOUR
A1  - Kirst, G.O 
A1  - Bisson, M.A 
T1  - Regulation of Turgor Pressure in Marine Algae: Ions and Low-molecular-weight Organic Compounds
JF  - Functional Plant Biology
JO  - Functional Plant Biol.
Y1  - 1979
VL  - 6
IS  - 4
SP  - 539
EP  - 556
KW  - 
UR  - https://doi.org/10.1071/PP9790539 
N2  - Seventeen species of thalloid or giant-celled marine algae representing the three major classes, Chlorophyceae, Rhodophyceae and Phaeophyceae maintain turgor pressure constant over the range of 470-1860 mosmol/kg external osmotic concentration. This is achieved by changing internal concentrations of Na+, K+ and Cl-. Three different groups can be distinguished: (1) species with high Na+ ; (2) those with high K+; and (3) algae with both cations in about equal amounts. In general, a Cl- pump seems to be involved in turgor regulation. There is no correlation between ion composition and taxonomic class. The concentration of low-molecular-weight organic compounds also changes during regulation. As a rule, these compounds are the main photosynthetic products and are probably located in the cytoplasm. 
ER  -

