Effects of Chromatic Adaptation on the Photochemical Apparatus of Photosynthesis in Porphyridium cruentum12
AUTOR(ES)
Ley, Arthur C.
RESUMO
Cells of Porphyridium cruentum were grown in different colors of light which would be absorbed primarily by chlorophyll (Chl) (red and blue light) or by the phycobilisomes (green or two intensities of cool-white fluorescent light), and samples of these cells were frozen to −196 C for measurements of absorption and fluorescence emission spectra. Cells grown in the high intensity white light had least of all of the photosynthetic pigments, a higher ratio of carotenoid/Chl, but essentially the same ratio of phycobilin to Chl as cells grown in the low intensity white light. The ratio of photosystem II (PSII) to photosystem I (PSI) pigments was affected by light quality; the ratios of phycobilin to Chl and of short wavelength (PSII) Chl to long wavelength (PSI) Chl were both greater in the cells grown in red or blue light.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=440411Documentos Relacionados
- Noncovalent Intermolecular Forces in Phycobilisomes of Porphyridium cruentum12
- Properties and Ultrastructure of Phycoerythrin From Porphyridium cruentum12
- The Mass Culture of Porphyridium cruentum
- Tripartite model for the photochemical apparatus of green plant photosynthesis.
- Phycobilisome-thylakoid Topography on Photosynthetically Active Vesicles of Porphyridium cruentum1
