Uncharacterized 4,5-Dihydroxy-2,3-Pentanedione (DPD) Molecules Revealed Through NMR Spectroscopy: Implications for a Greater Signaling Diversity in Bacterial Species

2012 ◽  
Vol 124 (17) ◽  
pp. 4280-4284 ◽  
Author(s):  
Daniel Globisch ◽  
Colin A. Lowery ◽  
Karen C. McCague ◽  
Kim D. Janda
Keyword(s):  
Nmr Spectroscopy ◽  
Bacterial Species

Identification of bacterial species by untargeted NMR spectroscopy of the exo-metabolome

The Analyst ◽  
2016 ◽  
Vol 141 (15) ◽  
pp. 4558-4561 ◽  
Author(s):  
T. L. Palama ◽  
I. Canard ◽  
G. J. P. Rautureau ◽  
C. Mirande ◽  
S. Chatellier ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Infectious Diseases ◽  
Clinical Diagnosis ◽  
Bacterial Species

Identification of bacterial species is a crucial bottleneck for clinical diagnosis of infectious diseases.

Structural analysis of the photosynthetic membrane from Ectothiorhodospira halochloris

1983 ◽  
Vol 41 ◽  
pp. 740-741
Author(s):  
H. Engelhardt ◽  
R. Guckenberger ◽  
W. Baumeister
Keyword(s):  
Lattice Structure ◽  
Bacterial Species ◽  
Hexagonal Lattice ◽  
Reaction Centre ◽  
Photosynthetic Membrane ◽  
Rhodopseudomonas Viridis ◽  
Photosynthetic Membranes ◽  
Ectothiorhodospira Halochloris ◽  
Main Components

Bacterial photosynthetic membranes contain, apart from lipids and electron transport components, reaction centre (RC) and light harvesting (LH) polypeptides as the main components. The RC-LH complexes in Rhodopseudomonas viridis membranes are known since quite seme time to form a hexagonal lattice structure in vivo; hence this membrane attracted the particular attention of electron microscopists. Contrary to previous claims in the literature we found, however, that 2-D periodically organized photosynthetic membranes are not a unique feature of Rhodopseudomonas viridis. At least five bacterial species, all bacteriophyll b - containing, possess membranes with the RC-LH complexes regularly arrayed. All these membranes appear to have a similar lattice structure and fine-morphology. The lattice spacings of the Ectothiorhodospira haloohloris, Ectothiorhodospira abdelmalekii and Rhodopseudomonas viridis membranes are close to 13 nm, those of Thiocapsa pfennigii and Rhodopseudomonas sulfoviridis are slightly smaller (∼12.5 nm).

Unitary bounds and controllability of quantum evolution in NMR spectroscopy

1999 ◽  
Vol 96 (12) ◽  
pp. 1739-1744 ◽  
Author(s):  
T. S. UNTIDT, S. J. GLASER, C. GRIESIN
Keyword(s):  
Nmr Spectroscopy ◽  
Quantum Evolution
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