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Pigments of Rlepharisma zindulans Compared with Hypericin
Author(s) -
SEVENANTS MICHAEL R.
Publication year - 1965
Publication title -
the journal of protozoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 0022-3921
DOI - 10.1111/j.1550-7408.1965.tb01844.x
Subject(s) - hypericin , pigment , chemistry , chemical structure , chromatography , organic chemistry , biology , pharmacology
SYNOPSIS. An analysis of the pigments from the protozoan Blepharismn undtulans is reported. Methods of isolation and separation by paper chromatography are described. along with subsequent spectrophotometric and chemical analysis. Since the two major pigments were available only in amounts insufficient for thorough chemical analysis, these pigments were compared with the known pigment hypericin. Although similarities in the visible spectra indicate that the B. unduluns pigments possess the same mesodianthrone structure as hypericin, infrared spectra and chemical reactions disclose differences in the position, and possibly in the number, of the functional groups. A tentative structure is proposed.