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Effects of Abscisic Acid, Salicylic Acid and Trans‐cinnamic Acid on Phosphate Uptake, ATP‐level and Oxygen Evolution in Scenedesmus
Author(s) -
Tillberg JanEric
Publication year - 1970
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1970.tb06457.x
Subject(s) - abscisic acid , salicylic acid , phosphate , oxygen , biochemistry , scenedesmus , cinnamic acid , chemistry , photophosphorylation , algae , botany , biology , organic chemistry , chloroplast , gene
The effects of abscisic acid, salicylic acid and trans‐cinnamic acid were tested on the light‐induced phosphorylating reactions and oxygen evolution of the unicellular green alga Scenedesmus . It was found that abscisic acid and cinnamic acid had practically no influence on the total inorganic phosphate uptake, while salicylic acid in the concentration range of 10 ‐6 to 10 ‐3 M gave a small decrease in the total inorganic phosphate uptake. The ATP level in the cells is in most cases increased when these three acids are given to the algae. The oxygen output is not significantly changed by abscisic acid or salicylic acid. Trans‐ cinnamic acid inhibits the oxygen evolution at concentrations of 10 ‐4 –10 ‐3 M None of the substances investigated caused such effects on photophosphorylation and oxygen evolution in Scenedesmus as those caused by the inhibitor β‐complex from potatoes according to earlier reports. It is suggested that these effects are due to other components in the inhibitor β‐complex.