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A unique low light adaptation mechanism in Rhodobacter azotoformans
In this paper, we reported for the first time that Rhodobacter azotoformans was capable of synthesizing a spectral variant of peripheral light‐harvesting complex (LH3), besides a high light formExpand
Selective repression of light harvesting complex 2 formation in Rhodobacter azotoformans by light under semiaerobic conditions
It was concluded that, similar to R. sphaeroides, a blue light receptor presented in strain 134K20 played important roles in its light‐dependent repression and a possible mechanism involved in controlling the differential inhibitory of blue light on the synthesis of photosystem was discussed. Expand
What Caused the Formation of the Absorption Maximum at 421 nm in vivo Spectra of Rhodopseudomonas palustris
Comparison of the extracted components showed that magnesium protoporphyrin IX monomethylester (MPE) was accumulated as one of the predominate components in M1 culture, and assembly of purified MPE with protein components from R. palustris in vitro demonstrated that MPE caused the formation of 421 nm peak. Expand
[Regulation mechanism of photopigments biosynthesis via light and oxygen in Rhodobacter azotoformans 134K20].
PpsR photopigment suppression regulation system regulated expression of photosynthetic genes via light and oxygen in Rhodobacter azotoformans 134K20. Expand
Absorption spectral change of peripheral-light harvesting complexes 2 induced by magnesium protoporphyrin IX monomethyl ester association.
The results showed that the maximum absorption of MPE was red-shifted from ∼415 nm to ∼423 nm when it was mixed with T-LH2 and its apoproteins, nevertheless, the Qy transitions of the bound bacteriochlorophylls in LH2 were almost unaffected, which indicated that the formation of the ∼ 423 nm peak was related to MPE-Lh2 protein interaction. Expand
[Progress on pigment-protein complexes from anoxygenic phototrophic bacteria--a review].
The current opinions in the pigment-protein complexes from anoxygenic phototrophic bacteria are summarized, including their chemical compositions, crystal structures and functions, homology of protein sequence, and the novel light-harvesting complexes namely LH3 and LH4. Expand
Effects of glycine on cell growth and pigment biosynthesis in Rhodobacter azotoformans
The effect of exogenous glycine (a precursor for the biosynthesis of bacteriochlorophyll) on the cell growth and photopigment accumulation was investigated in Rhodobacter azotoformans 134K20 and possibly played an important regulation role in photosynthesis of purple bacteria. Expand
[Construction and Characterization of B850-Only LH2 Energy Transfer System in Purple Bacteria].
It is concluded that B850-only P-LH2 is more stable than A-LF2 and may provide a new light to separate homogeneous Apoprotein LH2. Expand
Near-Infrared Spectroscopy for Predicting Structural Stability of Light-Harvesting Complex 2 from the Purple Bacteria
To investigate the feasibility of using near-infrared absorption to predict stability of light-harvesting complex 2 from the purple bacteria, we compared the structural stability of light-harvestingExpand