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STRUCTURAL AND PHYSIOLOGICAL STUDIES ON THE PARASITIC RED ALGA HOLMSELLA
Author(s) -
EVANS L. V.,
CALLOW J. A.,
CALLOW MAUREEN E.
Publication year - 1973
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1973.tb02047.x
Subject(s) - mannitol , gracilaria , botany , biology , algae , photosynthesis , autotroph , pigment , chloroplast , biochemistry , chemistry , bacteria , genetics , organic chemistry , gene
SUMMARY A study has been made of the structural and physiological relationship between the autotrophic red alga, Gracilaria verrucosa , and the parasitic, chloroplast‐free, red alga, Holmsella pachyderma. By means of 14 C‐labelling experiments, the major product of photosynthesis in the Gracilaria was found to be the alcohol glycoside, floridoside. Chromatography and autoradiography showed that 14 C was transferred to Holmsella and accumulated there as floridoside, mannitol and starch. This transfer probably occurred through endophytic filaments which arise from the base of the parasite and penetrate between the cells of the Gracilaria.