Knoellia
Scientific classification Edit this classification
Domain: Bacteria
Phylum: Actinomycetota
Class: Actinomycetia
Order: Micrococcales
Family: Intrasporangiaceae
Genus: Knoellia
Groth et al. 2002[1]
Type species
Knoellia sinensis
Groth et al. 2002
Species[2]

Knoellia is a genus of Gram positive, aerobic, non-endosporeforming bacteria.[1] Species in this genus are mesophilic and have cells that are irregular rods or coccoid.[3]

The genus was first proposed in 2002. The type species K. sinensis was first isolated from cave soil in Guilin, China. The genus is named after Hans Knöll, a German physician and microbiologist, and a "pioneer in antibiotic research.[1] Other members of this genus have been initially isolated from soil, air, and pig manure.[4][5] K. remsis was originally classified in the genus Tetrasphaera, but was reclassified into Knoellia in 2018.[6][7]

Species from this genus produce white or cream-colored colonies on R2A agar, expect for K. flava, which produces yellow colonies. All species are mesophilic; optimum growth is between 28 and 35 °C and pH 5.0-9.0.[3][5] K. remsis is the only species capable of growth above 42 °C.[6]

References

  1. 1 2 3 Groth, Ingrid; Schumann, Peter; Schütze, Barbara; Augsten, Kurt; Stackebrandt, Erko (2002). "Knoellia sinensis gen. nov., sp. nov. and Knoellia subterranea sp. nov., two novel actinobacteria isolated from a cave". International Journal of Systematic and Evolutionary Microbiology. 52 (Pt 1): 77–84. doi:10.1099/00207713-52-1-77. PMID 11837319.
  2. ↑ Euzéby JP, Parte AC. "Knoellia". List of Prokaryotic names with Standing in Nomenclature (LPSN). Retrieved May 25, 2022.
  3. 1 2 Groth, Ingrid (2015). "Knoellia". Bergey's Manual of Systematics of Archaea and Bacteria. pp. 1–11. doi:10.1002/9781118960608.gbm00079. ISBN 9781118960608.
  4. ↑ Shin, N.-R.; Roh, S. W.; Kim, M.-S.; Jung, M.-J.; Whon, T. W.; Bae, J.-W. (18 March 2011). "Knoellia locipacati sp. nov., from soil of the Demilitarized Zone in South Korea". International Journal of Systematic and Evolutionary Microbiology. 62 (2): 342–346. doi:10.1099/ijs.0.031880-0. PMID 21421930.
  5. 1 2 Yu, X.; Du, Y.; Wang, G. (25 March 2011). "Knoellia flava sp. nov., isolated from pig manure". International Journal of Systematic and Evolutionary Microbiology. 62 (2): 384–389. doi:10.1099/ijs.0.030932-0. PMID 21441369.
  6. 1 2 Osman, Shariff; Moissl, Christine; Hosoya, Naofumi; Briegel, Ariane; Mayilraj, Shanmugam; Satomi, Masataka; Venkateswaran, Kasthuri (1 December 2007). "Tetrasphaera remsis sp. nov., isolated from the Regenerative Enclosed Life Support Module Simulator (REMS) air system". International Journal of Systematic and Evolutionary Microbiology. 57 (12): 2749–2753. doi:10.1099/ijs.0.65137-0. PMID 18048719.
  7. ↑ Nouioui, Imen; Carro, Lorena; García-López, Marina; Meier-Kolthoff, Jan P.; Woyke, Tanja; Kyrpides, Nikos C.; Pukall, Rüdiger; Klenk, Hans-Peter; Goodfellow, Michael; Göker, Markus (22 August 2018). "Genome-Based Taxonomic Classification of the Phylum Actinobacteria". Frontiers in Microbiology. 9: 2007. doi:10.3389/fmicb.2018.02007. PMC 6113628. PMID 30186281.
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