What does rhodospirillum rubrum mean?
Definitions for rhodospirillum rubrum
rho·dospir·il·lum rubrum
This dictionary definitions page includes all the possible meanings, example usage and translations of the word rhodospirillum rubrum.
Wikidata
Rhodospirillum rubrum
Rhodospirillum rubrum is a Gram-negative, purple-coloured Proteobacterium, with a size of 800 to 1000 nanometers. It is a facultative anaerobe, it can therefore use alcoholic fermentation under low oxygen conditions or use aerobic respiration in aerobic conditions. Under aerobic growth photosynthesis is genetically suppressed and R. rubrum is then colorless. After the exhaustion of oxygen, R. rubrum immediately starts the production of photosynthesis apparatus including membrane proteins, bacteriochlorophylls and carotenoids, i.e. the bacterium becomes photosynthesis active. The repression mechanism for the photosynthesis is poorly understood. The photosynthesis of R. rubrum differs from that of plants as it possesses not chlorophyll a, but bacteriochlorophylls. While bacteriochlorophyll an absorbs light having a maximum wavelength of 800 to 925 nm, chlorophyll absorbs light having a maximum wavelength of 660 to 680 nm. R. rubrum is a spiral-shaped bacterium. R. rubrum is also a nitrogen fixing bacterium, i.e., it can express and regulate nitrogenase, a protein complex that can catalyse the conversion of atmospheric dinitrogen into ammonia. Due to this important property, R. rubrum has been the test subject of many different groups, so as to understand the complex regulatory schemes required for this reaction to occur. It was in R. rubrum that, for the first time, post-translational regulation of nitrogenase was demonstrated. Nitrogenase is modified by an ADP-ribosylation in the arginine residue 101 in response to the so-called "switch-off" effectors - glutamine or ammonia - and darkness.
U.S. National Library of Medicine
Rhodospirillum rubrum
Vibrio- to spiral-shaped phototrophic bacteria found in stagnant water and mud exposed to light.
Numerology
Chaldean Numerology
The numerical value of rhodospirillum rubrum in Chaldean Numerology is: 6
Pythagorean Numerology
The numerical value of rhodospirillum rubrum in Pythagorean Numerology is: 3
Translations for rhodospirillum rubrum
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