''Allochromatium phaeobacterium'' (''A. phaeobacterium'') is a

phototroph Phototrophs () are organisms that carry out photon capture to produce complex organic compounds (e.g. carbohydrates) and acquire energy. They use the energy from light to carry out various cellular metabolic processes. It is a common misconcep ...

ic and

rod-shaped A bacillus (), also called a bacilliform bacterium or often just a rod (when the context makes the sense clear), is a rod-shaped bacterium or archaeon. Bacilli are found in many different taxonomic groups of bacteria. However, the name ''Bacillu ...

purple sulfur bacterium from the genus of '' Allochromatium'' which has been isolated from brackish water in Bheemli,

Visakhapatnam , image_alt = , image_caption = From top, left to right: Visakhapatnam aerial view, Vizag seaport, Simhachalam Temple, Aerial view of Rushikonda Beach, Beach road, Novotel, Novotel Visakhapatnam, INS Kursura (S20), INS ...

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

. ''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

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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

carotenoid Carotenoids (), also called tetraterpenoids, are yellow, orange, and red organic compound, organic pigments that are produced by plants and algae, as well as several bacteria, and Fungus, fungi. Carotenoids give the characteristic color to pumpki ...

Genome

''A. phaeobacterium'' has been partially sequenced through 16s rRNA gene sequencing with a sequence of approximately 1400

base pair A base pair (bp) is a fundamental unit of double-stranded nucleic acids consisting of two nucleobases bound to each other by hydrogen bonds. They form the building blocks of the DNA double helix and contribute to the folded structure of both DNA ...

s. 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.

References

Chromatiales Bacteria described in 2009 {{Chromatiales-stub