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TAXONOMIC SIGNIFICANCE OF SECONDARY CAROTENOID FORMATION IN NEOSPONGIOCOCCUM (CHLOROCOCCALES, CHLOROPHYTA) 1
Author(s) -
Deason Temd R.,
Czygan FranzChristian,
Soeder Carl J.
Publication year - 1977
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.1529-8817.1977.tb02908.x
Subject(s) - canthaxanthin , carotenoid , biology , astaxanthin , chlorophyta , botany , lutein , orange (colour) , pigment , food science , algae , chemistry , organic chemistry
The pigmentation of 23 species of Neospongiococcum Deason was studied in the stationary phase of nitrogen‐limited cultures on agar with or without glucose or in liquid medium. Fourteen species gradually developed an orange or brown color, and in all, secondary carotenoids were detected by thin‐layer chromatography. Among these, the keto‐carotenoids echinenone, canthaxanthin and esterified astaxanthin were identified, although the last named was not always present. When aging on glucose agar, the remaining nine species developed only a yellow‐green or yellow color and a pronounced tendency to bleach. In these, the aforementioned keto‐carotenoids were lacking, and β‐carotene and lutein lucre dominant. From this study it is not clear whether secondary carotenoid formation is species‐specific in Neospongiococcum .