Truepera is one genus of bacteria in the family Trueperaceae from the phylum Deinococcus-Thermus. The following points accounts for its characteristics:

  • These strains form orange/red colonies and have spherical-shaped cells.
  • Optimum growth temperature of about 50 °C.
  • Optimum pH for growth between about 7.5 and 9.5, and do not grow at pH below 6.5 or above pH 11.2.
  • They are extremely resistant to ionizing radiation. For instance up to 60% of the cells can survive even after being exposed to 5.0 kGy
  • These strains are chemo-organotrophic and aerobic; do not grow in Thermus medium under anaerobic conditions with or without nitrate as electron acceptor and glucose as a source of carbon and energy, but ferment glucose to d-lactate without formation of gas. They assimilate a large variety of sugars, organic acids and amino acids.
  • Species: Truepera radiovictrix.[1][2]
Scientific classification edit
Domain: Bacteria
Phylum: Deinococcus-Thermus
Class: Deinococci
Order: Deinococcales
Family: Trueperaceae
Genus: Truepera
da Costa et al., 2005
T. radiovictrix
Binomial name
Truepera radiovictrix
Albuquerque et al., 2005

The sole species of this genus, Truepera radiovictrix, can be distinguished from other Deinococci as well as all other bacteria by the presence of five conserved signature indels (CSIs) exclusively found in this species in the proteins such as chorismate synthase and CTP synthetase.[3]


  1. ^ Albuquerque, Luciana; Simões, Catarina; Nobre, M. Fernanda; Pino, Nicole M.; Battista, John R.; Silva, Manuel T.; Rainey, Fred A.; Costa, Milton S. de (2005-06-01). "Truepera radiovictrix gen. nov., sp. nov., a new radiation resistant species and the proposal of Trueperaceae fam. nov". FEMS Microbiology Letters. 247 (2): 161–169. doi:10.1016/j.femsle.2005.05.002. ISSN 0378-1097. PMID 15927420.
  2. ^ Ivanova, Natalia; Rohde, Christine; Munk, Christine; Nolan, Matt; Lucas, Susan; Del Rio, Tijana Glavina; Tice, Hope; Deshpande, Shweta; Cheng, Jan-Fang (2011-01-01). "Complete genome sequence of Truepera radiovictrix type strain (RQ-24)". Standards in Genomic Sciences. 4 (1): 91–99. doi:10.4056/sigs.1563919. ISSN 1944-3277. PMC 3072082. PMID 21475591.
  3. ^ Ho, Jonathan; Adeolu, Mobolaji; Khadka, Bijendra; Gupta, Radhey S. (October 2016). "Identification of distinctive molecular traits that are characteristic of the phylum "Deinococcus-Thermus" and distinguish its main constituent groups". Systematic and Applied Microbiology. 39 (7): 453–463. doi:10.1016/j.syapm.2016.07.003. ISSN 0723-2020.