Biochemical Studies on Calcareous Algae
1. Major Inorganic Constituents of Some Calcareous Red Algae
1960 Volume 73 Issue 867 Pages 355-359
Details
1960 Volume 73 Issue 867 Pages 355-359
1. With 11 species of calcareous red algae, of which 8 belonging to Corallinaceae and 3 to Chaetangiaceae, the content of Ca, Mg, CO3, SO4 and PO4 was estimated.
2. Calcareous red algae were found to contain a remarkably large quantity of calcium carbonate, its amount being 65 to 70per cent in Corallinaceae and 21 to 60 per cent in Chaetangiaceae.
3. The encrustation of lime was examined with the developing tetraspores of Amphiroa ephedraea and found to start as early as at the first cell division.
4. Magnesium content of coralline algae was found to be generally high compared with that of non-calcareous red algae.
5. An appreciable quantity of sulfate is present in calcareous red algae. Its content in ash is about half as much as found in the acid hydrolysate of the frond, indicating its occurrence in monoester form. The content of ionizable sulfate is exceedingly small, if existing at all.
6. Phosphate content of coralline algae is low and in nearly the same order as of non-calcareous red algae.
