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Phycochrome d, a New Photochromic Pigment from the Blue‐Green Alga, Tolypothrix distorta
Author(s) -
BJÖRN G. S.
Publication year - 1978
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1978.tb04089.x
Subject(s) - absorbance , photochromism , pigment , irradiation , blue light , photochemistry , action spectrum , chemistry , green light , nuclear chemistry , materials science , chromatography , optoelectronics , organic chemistry , physics , nuclear physics
A new reversibly photochromic pigment, phycochrome d, has been found in extracts of the blue‐green alga Tolypothrix distorta . This phycochrome exhibits an absorbance increase in the red region (maximum at about 650 nm) when irradiated with 650 nm light, and a corresponding absorbance decrease when irradiated with 610 nm light. The absorbance difference spectrum and action spectra for in vitro conversions were determined.