Rhodoluna

Rhodoluna is a Gram-positive, non-spore-forming and non-motile genus of bacteria from the family of Microbacteriaceae.[3] The type strain of the only species Rhodoluna lacicola encodes an actinorhodopsin, which is a light-diven proton pump enabling light energy conversion,[4] potentially resulting in a mixotrophic physiology. The type strain of R. lacicola was isolated from Lake Tai (Lake Taihu) in China. The type strain MWH-Ta8 is remarkable for its very small cell size ultramicrobacterium and its small genome size of only 1.4 Mbp. The type strain has a planktonic lifestyle, that is freely floating the water column of aquatic systems. Currently, the genus Rhodoluna contains two described species (R. lacicola and R. limnophila[5]).

Rhodoluna
Scientific classification
Domain: Bacteria
Phylum: Actinomycetota
Class: Actinomycetia
Order: Micrococcales
Family: Microbacteriaceae
Genus: Rhodoluna
Hahn et al. 2014[1]
Type species
Rhodoluna lacicola
Hahn et al. 2014
Species[2]
  • R. lacicola Hahn et al. 2014
  • R. limnophila Pitt et al. 2019

References
  1. Hahn MW, Schmidt J, Taipale SJ, Doolittle WF, Koll U. (2014). "Rhodoluna lacicola gen. nov., sp. nov., a planktonic freshwater bacterium with stream-lined genome". Int. J. Syst. Evol. Microbiol. 64: 3254–3263. doi:10.1099/ijs.0.065292-0. PMID 24984700.
  2. Parte, A.C. "Rhodoluna". LPSN.
  3. Hahn M. W. (2016). Rhodoluna, 1–9 DOI: 10.1002/9781118960608.gbm01312, In: Whitman, W.B. (ed.) Bergey's Manual of Systematics of Archaea and Bacteria, Wiley Online ISBN 9781118960608
  4. Keffer J.L., Hahn M.W., Maresca J.A. (2015). Characterization of an unconventional rhodopsin from the freshwater Actinobacterium Rhodoluna lacicola. J. Bacteriol. 197(16) 2704-2712 doi:10.1128/JB.00386-15
  5. Pitt A, Schmidt J, Koll U, Hahn MW. Rhodoluna limnophila sp. nov., a bacterium with 1.4 Mbp genome size isolated from freshwater habitats located in Salzburg, Austria. Int J Syst Evol Microbiol 2019; 69:3946-3954


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