Kinetic studies of pigment synthesis by non-sulfur purple bacteria.

  title={Kinetic studies of pigment synthesis by non-sulfur purple bacteria.},
  author={G. Cohen-bazire and W. R. Sistrom and R. Stanier},
  journal={Journal of cellular and comparative physiology},
  volume={49 1},
Aerobic biodegradation of 2,3- and 3,4-dichloronitrobenzene.
When a bench-scale aerobic fluidized- bed bioreactor was inoculated with samples from a DCNB contaminated site in Brazil, results indicate clearly that the DCNB isomers are biodegradable under aerobic conditions and thus are candidates for natural attenuation/bioremediation. Expand
Regulation of Gene Expression by PrrA in Rhodobacter sphaeroides 2.4.1: Role of Polyamines and DNA Topology
It is proposed that polyamines and DNA supercoiling act synergistically to regulate expression of the RSP3361 gene, partly by affecting the affinity of PrrA binding to the Prr A site 2 within the R SP3361 locus. Expand
Aestuariimicrobium kwangyangense gen. nov., sp. nov., an LL-diaminopimelic acid-containing bacterium isolated from tidal flat sediment.
Four Gram-positive, catalase-positive, short rod- or coccoid-shaped bacterial strains, R27(T), R44, R45 and R47, were isolated from an enrichment culture with diesel oil-degradation activity andExpand
Interacting Regulatory Circuits Involved in Orderly Control of Photosynthesis Gene Expression in Rhodobacter sphaeroides 2.4.1
  • Jeong-Il Oh, J. Eraso, Samuel Kaplan
  • Biology, Medicine
  • Journal of bacteriology
  • 2000
Results obtained suggested that FnrL is not involved in the transduction of the inhibitory signal, by which PS gene expression is "silenced," emanating from the cbb(3) oxidase encoded by the ccoNOQP operon under aerobic conditions, and revealed that anaerobic induction of the bchE, hemN, and hemZ genes, which areinvolved in the tetrapyrrole biosynthetic pathways, requires Fnrl. Expand
A Redox-Responsive Pathway for Aerobic Regulation of Photosynthesis Gene Expression in Rhodobacter sphaeroides 2.4.1
It is proposed that the cbb3 cytochrome oxidase, which by definition can interact with external oxygen, serves to control the activity of the Prr two-component activation system under both aerobic and anaerobic conditions. Expand
A quorum-sensing system in the free-living photosynthetic bacterium Rhodobacter sphaeroides.
Rhodobacter sphaeroides is a free-living, photoheterotrophic bacterium known for its genomic and metabolic complexity. We have discovered that this purple photosynthetic organism possesses aExpand
A Recently Assembled Degradation Pathway for 2,3-Dichloronitrobenzene in Diaphorobacter sp. Strain JS3051
  • Tao Li, Yi-Zhou Gao, +4 authors Ning-Yi Zhou
  • Medicine
  • mBio
  • 2021
Because anthropogenic nitroaromatic compounds have entered the biosphere relatively recently, exploration of the recently evolved catabolic pathways can provide clues for adaptive evolutionaryExpand
Arcobacter acticola sp. nov., isolated from seawater on the East Sea in South Korea
Differential phenotypic properties, together with its phylogenetic and genetic distinctiveness, revealed that strain AR-13T is separated from recognized Arcobacter species. Expand
Algibacter undariae sp. nov., isolated from a brown algae reservoir.
The phylogenetic and genetic distinctiveness and differential phenotypic properties revealed that strain WS-MY9(T) is separate from the two recognized species of the genus Algibacter. Expand
Searching for a circadian clock in Rhodopseudomonas palustris Strain TIE-1 by oxygen entrainment
Circadian clocks are the internal timing mechanisms that facilitate organisms to regulate their activities in diurnal cycles. Although circadian clocks are ubiquitous among eukaryotes, cyanobacteriaExpand


The synthesis of porphyrins and bacteriochlorophyll by cell suspensions of Rhodopseudomonas spheroides.
Stich & Eisgruber (1951) found that the amount of coproporphyrin Type I in cells of Saccharomyces anamensis is increased 5to 10-fold by addition of pantothenate to the growth medium, while addition of riboflavin completely suppresses porphyr in formation. Expand
Respiratory Pigments of Rhodospirillum Rubrum
Enzymatic activities affecting cytochromes in photosynthetic bacteria.
Anaerobic and aerobic growth of purple bacteria (Athiorhodaceae) in chemically defined media.
  • S. Hutner
  • Biology, Medicine
  • Journal of general microbiology
  • 1950
SUMMARY: Studies on the anaerobic growth of aerobically adapted purple bacteria show that the same growth factors suffice for both aerobic and anaerobic growth, thus supporting van Niel'sExpand
Diphtheria toxin; a reinvestigation of the effect of iron on toxin and porphyrin production.
It has occurred to us that, if the role the toxin plays in the metabolism of the diphtheria bacillus itself can be determined, then it may well be possible to predict the manner by which it causes damage to the cells of higher animals. Expand
Absorption Spectra of the Carotenoids in the Red and Brown Forms of a Photosynthetic Bacterium
1. Bacteria may be ground with a hypodermic syringe to liberate the water-soluble constituents. 2. Both aerobically grown (red) and anaerobically grown (brown) extracts of Streptococcus varians thusExpand