Allochromatium phaeobacterium
{{Short description|Genus of bacteria}}
{{Taxobox
| domain = Bacteria
| phylum = Pseudomonadota
| classis = Gammaproteobacteria
| ordo = Chromatiales
| familia = Chromatiaceae
| genus = Allochromatium
| genus_authority =
| species = A. phaeobacterium
| binomial = Allochromatium phaeobacterium
| binomial_authority = Srinivas et al. 2009{{cite journal |title=Allochromatium |journal=LPSN |url=https://lpsn.dsmz.de/genus/allochromatium}}
| type_strain = DSM 19781, JCM 14796, strain JA144
| subdivision =
| synonyms = Allochromatium sequicentenarium{{cite journal |title=Allochromatium phaeobacterium |website=www.uniprot.org |url=https://www.uniprot.org/taxonomy/430676}}
Allochromatium sesquicentenarium
}}
Allochromatium phaeobacterium (A. phaeobacterium) is a phototrophic and rod-shaped purple sulfur bacterium from the genus of Allochromatium which has been isolated from brackish water in Bheemli, Visakhapatnam, India.{{cite journal |last1=Parker |first1=Charles Thomas |last2=Garrity |first2=George M |editor1-first=Charles Thomas |editor1-last=Parker |editor2-first=George M |editor2-last=Garrity |title=Taxonomic Abstract for the species. |date=1 August 2008 |doi=10.1601/tx.14194 |publisher=NamesforLife, LLC |language=en}}{{cite journal |title=Details: DSM-19781 |website=www.dsmz.de |url=https://www.dsmz.de/catalogues/details/culture/DSM-19781.html}}{{cite journal |last1=Srinivas |first1=TN |last2=Anil Kumar |first2=P |last3=Sucharitha |first3=K |last4=Sasikala |first4=Ch |last5=Ramana |first5=ChV |title=Allochromatium phaeobacterium sp. nov. |journal=International Journal of Systematic and Evolutionary Microbiology |date=April 2009 |volume=59 |issue=Pt 4 |pages=750–3 |doi=10.1099/ijs.0.65647-0 |pmid=19329600|doi-access=free }}
A. phaeobacterium was first isolated from anoxic sediment in 2007, and isolated on a modified Bielbl and Pfennig medium.
Description
A. phaeobacterium is a rod-shaped, gram-negative species of bacteria. This species appears brown in color, and is 1.0–1.5x2.0–4.0 in length. A. phaeobacterium is motile and reproduces through binary fission. It has been observed growing photoautotrophically, photolithoautotrophically, photolithotrophically, and photoorganoheterotrophically.
Absoprtion spectra has confirmed photoreceptors bacteriochlorophyll α, rhodopinals, and carotenoids.
Genome
A. phaeobacterium has been partially sequenced through 16s rRNA gene sequencing with a sequence of approximately 1400 base pairs. The G/C content is 59.8%. Based on phylogenetic analysis from this 16s sequence, Allochromatium phaeobacterium is considered morphologically and physiologically distinct from others in the Allochromatium genus.