CHLOROPLAST STRUCTURE AND PIGMENT COMPOSITION IN THE RED ALGAGRIFFITHSIA PACIFICA: REGULATION BY LIGHT INTENSITY1

Autor:	George W. Bates, Susan D. Waaland, J. Robert Waaland
Rok vydání:	1974
Předmět:	Chlorophyll a Phycobiliprotein food and beverages Plant Science Aquatic Science Biology Photosynthesis Chloroplast Pigment chemistry.chemical_compound Light intensity chemistry Thylakoid visual_art Botany visual_art.visual_art_medium Phycobilisome sense organs
Zdroj:	Journal of Phycology. 10:193-199
ISSN:	0022-3646
DOI:	10.1111/j.1529-8817.1974.tb02697.x
Popis:	SUMMARY The ratio of accessory phycobiliproteins to chlorophyll a is controlled by light intensity in the marine red alga Griffithsia pacifica. The greatest changes in pigment ratios are observed below 300 ft-c; above 300 ft-c the response approaches saturation. Ultrastructural examination of chloroplasts of plants grown at different intensities reveals that the number of phycobilisomes per unit of photosynthetic thylakoid changes in direct proportion to the pigment ratios and in inverse proportion to the light intensity.
Databáze:	OpenAIRE
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