Roseiflexus castenholzii

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Roseiflexus castenholzii
Scientific classification
Kingdom: Bacteria
Division: Chloroflexi
Class: Chloroflexi
Order: Chloroflexales
Family: Chloroflexaceae
Genus: Roseiflexus
Species: R. castenholzii
Binomial name
Roseiflexus castenholzii
Hanada et al., 2002

Roseiflexus castenholzii is a thermophilic, filamentous, photosynthetic bacterium that lacks chlorosomes.[1]


The cell diameter is of 0.8-1.0 micrometres. The bacterium is red to reddish-brown in colour and formed a distinct red bacterial mat in the natural environment. It is able to grow photoheterotrophically under anaerobic light conditions and also chemoheterotrophically under aerobic dark conditions. Optimal growth conditions for this organism are 50 degrees C and pH 7.5-8.0. Its type strain is HLO8T (= DSM 13941T = JCM 11240T).


Further reading[edit]

  • Collins, Aaron M.; Qian, Pu; Tang, Qun; Bocian, David F.; Hunter, C. Neil; Blankenship, Robert E. (2010). "Light-Harvesting Antenna System from the Phototrophic BacteriumRoseiflexus castenholzii". Biochemistry 49 (35): 7524–7531. doi:10.1021/bi101036t. ISSN 0006-2960. 
  • Tsukatani, Yusuke; Nakayama, Nahomi; Shimada, Keizo; Mino, Hiroyuki; Itoh, Shigeru; Matsuura, Katsumi; Hanada, Satoshi; Nagashima, Kenji V. P. (1 October 2009). "Characterization of a blue-copper protein, auracyanin, of the filamentous anoxygenic phototrophic bacterium Roseiflexus castenholzii". Archives of Biochemistry and Biophysics 490 (1): 57–62. doi:10.1016/ 
  • van ver Meer MT; Schouten S; Hanada S; Hopmans EC; Damsté JS; Ward DM (September 2002). "Alkane-1,2-diol-based glycosides and fatty glycosides and wax esters in Roseiflexus castenholzii and hot spring microbial mats". Archives of Microbiology 178 (3): 229–37. doi:10.1007/s00203-002-0449-8. PMID 12189424. Retrieved 2013-08-08. 
  • Xin, Yueyong; Pan, Jie; Collins, Aaron M.; Lin, Su; Blankenship, Robert E. (27 July 2011). "Excitation energy transfer and trapping dynamics in the core complex of the filamentous photosynthetic bacterium Roseiflexus castenholzii". Photosynthesis Research 111 (1-2): 149–156. doi:10.1007/s11120-011-9669-6. 
  • Yamada, M.; Zhang, H.; Hanada, S.; Nagashima, K. V. P.; Shimada, K.; Matsuura, K. (2005). "Structural and Spectroscopic Properties of a Reaction Center Complex from the Chlorosome-Lacking Filamentous Anoxygenic Phototrophic Bacterium Roseiflexus castenholzii". Journal of Bacteriology 187 (5): 1702–1709. doi:10.1128/JB.187.5.1702-1709.2005. ISSN 0021-9193. 

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