Chromatiaceae

Chromatiaceae
	Microscopic image (600x magnification) of the species Chromatium okenii, belonging to the family Chromatiaceae
Scientific classification
Domain:	Bacteria
Phylum:	Pseudomonadota
Class:	Gammaproteobacteria
Order:	Chromatiales
Family:	Chromatiaceae; Bavendamm 1924 (Approved Lists 1980)
Genera
	"Ca. Nitrosoglobus" Hayatsu et al. 2017; "Ca. Tenderia" Eddie et al. 2017; "Pararheinheimera" Sisinthy et al. 2017; "Rhodothece" Molisch 1906; "Thioflavicoccus" Imhoff and Pfennig 2001; "Thiothece" Winogradsky 1888; "Vampirococcus" Guerrero et al. 1986; Alishewanella Fonnesbech Vogel et al. 2000; Allochromatium Imhoff et al. 1998; Amoebobacter Winogradsky 1888 (Approved Lists 1980); Caldichromatium Saini et al. 2020; Chromatium Perty 1852 (Approved Lists 1980); Halochromatium Imhoff et al. 1998; Imhoffiella Nupur et al. 2017; Isochromatium Imhoff et al. 1998; Lamprobacter Gorlenko et al. 1988; Lamprocystis Schroeter 1886 (Approved Lists 1980); Marichromatium Imhoff et al. 1998; Monas; Nitrosococcus Winogradsky 1892 (Approved Lists 1980); Ophidomonas; Pfennigia Tindall 1999; Phaeobacterium Nupur et al. 2015; Phaeochromatium Shivalia et al. 2012; Rhabdochromatium (ex Winogradsky 1888) Dilling et al. 1996; Rheinheimera Brettar et al. 2002; Thermochromatium Imhoff et al. 1998; Thialkalicoccus Bryantseva et al. 2000; Thiobaca Rees et al. 2002; Thiocapsa Winogradsky 1888 (Approved Lists 1980); Thiococcus (ex Eimhjellen et al. 1967) Imhoff et al. 1998; Thiocystis Winogradsky 1888 (Approved Lists 1980); Thiodictyon Winogradsky 1888 (Approved Lists 1980); Thiohalocapsa Imhoff et al. 1998; Thiolamprovum Guyoneaud et al. 1998; Thiopedia Winogradsky 1888 (Approved Lists 1980); Thiophaeococcus Anil Kumar et al. 2008; Thiorhodococcus Guyoneaud et al. 1998; Thiorhodovibrio Overmann et al. 1993; Thiospirillum Winogradsky 1888 (Approved Lists 1980);

The Chromatiaceae are one of the two families of purple sulfur bacteria, together with the Ectothiorhodospiraceae. They belong to the order Chromatiales of the class Gammaproteobacteria, which is composed by unicellular Gram-negative organisms. Most of the species are photolithoautotrophs and conduct an anoxygenic photosynthesis, but there are also representatives capable of growing under dark and/or microaerobic conditions as either chemolithoautotrophs or chemoorganoheterotrophs.

Both Ectothiorhodospiraceae and Chromatiaceae bacteria produce elemental sulfur globules, the difference is that in the second case they are stored inside the cells rather than outside. Sulfur is an intermediate in the oxidization of sulfide, which is ultimately converted into sulfate, and may serve as a reserve.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.