Phycobilisome-thylakoid topography on photosynthetically active vesicles of Porphyridium cruentum
Journal Article
·
· Plant Physiol.; (United States)
Conditions are described for isolating functional phycobilisome-thylakoid vesicles from the red alga Porphyridium cruentum. They required ferricyanide as an oxidant and had O/sub 2/ evolution rates higher than whole cells. Energy transfer to photosystem II chlorophyll was evident from a high F695 nanometer (-196 C) emission peak. In electron micrographs of negatively stained material, the active thylakoid vesicles were found covered by closely spaced phycobilisomes on their external surface. The phycobilisome number in negatively stained vesicles was 450 per square micrometer, which was in the same range as the 400 per square micrometer observed in surface sections.
- Research Organization:
- Smithsonian Institution, Rockville, MD
- DOE Contract Number:
- EY-76-S-05-4310
- OSTI ID:
- 6501393
- Journal Information:
- Plant Physiol.; (United States), Journal Name: Plant Physiol.; (United States) Vol. 67:4; ISSN PLPHA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Stoichiometry of photosystem I, photosystem II, and phycobilisomes in the red alga Porphyridium cruentum as a function of growth irradiance
Topography of thylakoid membranes: In situ localization of photosystems I and II. [Porphyridium cruentum]
Characterization of a purified photosystem II-phycobilisome particle preparation from Porphyridium cruentum
Journal Article
·
Tue Oct 31 23:00:00 EST 1989
· Plant Physiology; (USA)
·
OSTI ID:5925636
Topography of thylakoid membranes: In situ localization of photosystems I and II. [Porphyridium cruentum]
Conference
·
Wed May 01 00:00:00 EDT 1991
· Plant Physiology, Supplement; (United States)
·
OSTI ID:5401938
Characterization of a purified photosystem II-phycobilisome particle preparation from Porphyridium cruentum
Journal Article
·
Mon Dec 31 23:00:00 EST 1984
· Plant Physiol.; (United States)
·
OSTI ID:5944309
Related Subjects
550200 -- Biochemistry
551000* -- Physiological Systems
59 BASIC BIOLOGICAL SCIENCES
ABSORPTION SPECTRA
ALGAE
CHEMICAL REACTIONS
ELECTRON MICROSCOPY
MEMBRANES
MICROSCOPY
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PHOTOSYNTHETIC MEMBRANES
PLANTS
PORPHYRA
SPECTRA
SYNTHESIS
TOPOGRAPHY
TRANSMISSION ELECTRON MICROSCOPY
551000* -- Physiological Systems
59 BASIC BIOLOGICAL SCIENCES
ABSORPTION SPECTRA
ALGAE
CHEMICAL REACTIONS
ELECTRON MICROSCOPY
MEMBRANES
MICROSCOPY
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PHOTOSYNTHETIC MEMBRANES
PLANTS
PORPHYRA
SPECTRA
SYNTHESIS
TOPOGRAPHY
TRANSMISSION ELECTRON MICROSCOPY