Results 261 to 270 of about 198,573 (295)

Biosynthesis of Bacteriochlorophylls in Purple Bacteria

2009
The purple bacteria make bacteriochlorophylls for the photosynthetic mode of growth. These pigments are made from the simple precursors glycine and succinyl CoA and the initial steps in the pathway of bacteriochlorophyll biosynthesis are shared with the vitamin B12 and heme biosynthetic pathways.
Robert D. Willows, Alison M. Kriegel
openaire   +1 more source

[Use of urea by purple bacteria].

Mikrobiologiia, 1979
Strains of purple sulfur bacteria (Chromatium minutissimum, Ectothiorhodospira shaposhnikovii, Thiocapsa roseopersicina, Lamprobacter modestohalophilus) and nonsulfur bacteria (Rhodopseudomonas palustris, Rh. spheroides, Rhodospirillum rubrum) grow in media containing urea as a source of nitrogen at concentrations from 0.5 to 5.0%.
openaire   +2 more sources

Coherence in the B800 Ring of Purple Bacteria LH2

Physical Review Letters, 2006
We study the quantum coherence in the B800 ring and how it affects the dynamics of excitation energy transfer (EET) in photo-synthetic light-harvesting systems. From an analysis of the spectrum, we determine the disorder parameters for the B800 ring and show that the relatively weak electronic coupling between B800 pigments subtly changes the dynamics ...
Y C, Cheng, R J, Silbey
openaire   +2 more sources

Molecular genetics of purple bacteria

1996
Abstract In 1957 Cohen-Bazire et al. (1), noted that light intensity, as well as O2 tension could dramatically and immediately alter the cellular bacteriochlorophyll (Bchl) content of photosynthetically growing cultures of Rhodobacter sphaeroides.
Jeong K Lee, samuel Kaplan
openaire   +1 more source

Autofluorescence of Live Purple Bacteria in the Near Infrared

Experimental Cell Research, 1997
We have developed a novel microscope with which to study the fluorescence of cells in the near-infrared region (lambda = 750-2500 nm). For one of its first applications we report on the autofluorescence of live purple bacteria, Rhodospirillum rubrum, and suggest that the autofluorescent component is bacteriochlorophyll.
openaire   +2 more sources

Phototactic purple bacteria

Nature, 1994
Lisa Ragatz, Ze-Yu Jiang, Carl Bauer, Howard Gest   +3 more
openaire   +1 more source

Optimizing light sources for selective growth of purple bacteria and efficient formation of value-added products

Journal of Cleaner Production, 2021
Yiwen Liu, Bing-Jie Ni, Lai Peng
exaly  

PURPLE BACTERIA AS SYMBIONTS OF A LICHEN

Science, 1925
openaire   +2 more sources

The Chromoproteins of Photosynthetic Purple Bacteria

Science, 1938
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Nitrate reduction by photosynthetic purple bacteria

Photosynthesis Research, 1982
F, Castillo, J, Cárdenas
openaire   +2 more sources