Atypical carotenoids for the Rhodophyceae in the genus Gracilaria (Gigartinales)
- 6 March 1982
- journal article
- research article
- Published by Taylor & Francis in Phycologia
- Vol. 21 (1) , 9-16
- https://doi.org/10.2216/i0031-8884-21-1-9.1
Abstract
It has been generally accepted that the carotenoids of the rhodophycean algae are α-carotene, β-carotene, lutein, and zeaxanthin. However, one report on a species of Gracilaria indicated that antheraxanthin, an epoxide, was the major carotenoid. We have confirmed this report and have examined twenty-one other samples (mostly unialgal cultures, some field material) representing at least another eight species of Gracilaria. All of these samples contained antheraxanthin, and many also had the diepoxide, violaxanthin. This is the first report of the latter compound for this genus. Our data indicate that carotenoid epoxides are probably more common in the Rhodophyceae than is generally indicated, and phylogenetic schemes based on pigment composition must be modified accordingly to accommodate these compounds in the Rhodophyceae.This publication has 5 references indexed in Scilit:
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