Rhodobacter sphaeroides ATCC 17025

Names Rhodobacter sphaeroides ATCC 17025
Accession numbers NC_009428, NC_009429, NC_009430, NC_009431, NC_009432, NC_009433
Background Rhodobacter sphaeroides ATCC 17029 is purple nonsufur phototrophic bacterium able to grow under a wide variety of conditions. It is photosynthetic, which provides fundamental insights into light-driven, renewable-energy production and it can also detoxify metal oxides, which may be useful in bioremediation. Each of the three sequenced R.sphaeroides strains (2.4.1, ATCC 17025 and ATCC 17029) has a large ~3.0 Mb chromosome and a small ~0.9 - 1.2 Mb chromosome in addition to differing numbers of plasmids. Comparative optical mapping studies have shown that in terms of size and physical map structure, the large chromosome in these strains is relatively stable, whereas the smaller chromosomes are much more variable. Comparing these genomes will help determine what factors lead to chromosome and genome stability/instability, giving a better understanding of the mechanisms involved in genome evolution and speciation. Examining the genomes R.sphaeroides will also lead to a greater understanding of the structural and functional aspects of the light reactions of photosynthesis, mechanisms of CO2 fixation, nitrogen fixation, cytochrome diversity and electron transport systems. In addition, R. sphaeroides has been shown to be able to detoxify a number of metal oxides and oxyanions and is the subject of ongoing studies in this area. Additional investigations over many years have led to increased knowledge of tetrapyrrole and carotenoid biosynthesis, which have broad applicability (adapted from http://genome.jgi-psf.org/rhos9/rhos9.home.html). (EBI Integr8)
Strain ATCC 17025
Complete Yes
Sequencing centre (08-MAY-2007) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA
(10-APR-2007) US DOE Joint Genome Institute, 2800 Mitchell Drive B100, Walnut Creek, CA 94598-1698, USA
Sequencing quality Level 6: Finished
Sequencing depth NA
Sequencing method Sanger
Isolation site NA
Isolation country NA
Number of replicons 6
Gram staining properties Negative
Shape Bacilli
Mobility Yes
Flagellar presence Yes
Number of membranes 2
Oxygen requirements Facultative
Optimal temperature 25.0
Temperature range Mesophilic
Habitat Multiple
Biotic relationship Free living
Host name NA
Cell arrangement Chains
Sporulation NA
Metabolism NA
Energy source Photosynthetic
Diseases NA
Pathogenicity No