Ectothiorhodospiraceae

Culture of Thialkalivibrio, copyright Dimitri Yu. Sorokin.

Belongs within: Chromatibacteria.

The Ectothiorhodospiraceae are a group of phototrophic and chemotrophic bacteria that live in saline and alkaline growth conditions (Imhoff 2001).

Characters (from Imhoff 2001): Phototrophic or chemotrophic; phototrophic members depositing elemental sulphur outside their cells during oxidation of sulphide. Lamellar intracellular membrane structures present. Photosynthetic pigment (if present) bacteriochlorophyll a or b; cytochrome c type c₅₅₁; major quinones MK-8/Q-8, MK-7/Q-7 or Q-8; major fatty acid C_18:1 (60–75%).

Ectothiorhodospiraceae [Ectothiorhodaceae]
    |--+--+--Thiorhodospira sibirica H-RM03
    |  |  `--Thiorhodovibrio winogradskyi H-RM03
    |  `--+--Thiorhodococcus minor H-RM03 [=T. minus I01]
    |     `--Allochromatium H-RM03
    |          |--A. minutissimum [=Chromatium minutissimum] I01
    |          |--A. vinosum H-RM03 [=Chromatium vinosum I01]
    |          `--A. warmingii [=Chromatium warmingii] I01
    `--+--+--+--Arhodomonas aquaeolei ST03
       |  |  `--Nitrococcus mobilis ST03
       |  `--Halorhodospira ST03
       |       |--+--*H. halophila H-RM03 [=Ectothiorhodospira halophila I01]
       |       |  `--H. neutriphila Hirschler-Réa, Matheron et al. 2003 (nom. inv.) H-RM03, JC08
       |       `--+--H. abdelmalekii ST03 [=Ectothiorhodospira abdelmalekii I01]
       |          `--H. halochloris ST03 [=Ectothiorhodospira halochloris I01]
       `--+--Ectothiorhodospira ST03
          |    |--E. mobilis H-RM03
          |    `--+--+--E. shaposhnikovii H-RM03
          |       |  `--E. vacuolata H-RM03
          |       `--+--E. marismortui H-RM03
          |          `--+--E. haloalkaliphila H-RM03
          |             `--E. marina H-RM03
          `--Thialkalivibrio ST03
               |--T. denitrificans ST03
               `--+--+--T. nitratireducens Sorokin, Tourova et al. 2003 ST03
                  |  `--T. paradoxus ST03
                  `--+--+--T. jannaschii ST03
                     |  `--T. versutus ST03
                     `--+--T. nitratis ST03
                        `--T. thiocyanoxidans ST03

*Type species of generic name indicated

REFERENCES

[H-RM03] Hirschler-Réa, A., R. Matheron, C. Riffaud, S. Mouné, C. Eatock, R. A. Herbert, J. C. Willison & P. Caumette. 2003. Isolation and characterization of spirilloid purple phototrophic bacteria forming red layers in microbial mats of Mediterranean salterns: description of Halorhodospira neutriphila sp. nov. and emendation of the genus Halorhodospira. International Journal of Systematic and Evolutionary Microbiology 53: 153–163.

[I01] Imhoff, J. F. 2001. The anoxygenic phototrophic purple bacteria. In: Boone, D. R., R. W. Castenholz & G. M. Garrity (eds) Bergey’s Manual of Systematic Bacteriology 2nd ed. vol. 1. The Archaea and the Deeply Branching and Phototrophic Bacteria pp. 631–637. Springer.

[JC08] Judicial Commission of the International Committee on Systematics of Prokaryotes. 2008. Status of strains that contravene Rules 27 (3) and 30 of the International Code of Nomenclature of Bacteria. Opinion 81. International Journal of Systematic and Evolutionary Microbiology 58: 1755–1763.

[ST03] Sorokin, D. Yu., T. P. Tourova, K. A. Sjollema & J. G. Kuenen. 2003. Thialkalivibrio nitratireducens sp. nov., a nitrate-reducing member of an autotrophic denitrifying consortium from a soda lake. International Journal of Systematic and Evolutionary Microbiology 53: 1779–1783.