ThermomonasDid we forget anything? Let us know

Genus nameThermomonas
Alternative names
NCBI taxonomy ID141948

Taxonomy (MiDAS 2.0)


16S gene copy number-

 In situOther
Hydrophobic cell surface10

Fluorescence micrograph showing the Thermomonas-like organism (red), Nitrospira (cyan), and other bacteria (green) detected by FISH in activated sludge. Applied probes were Thmm115 (labeled with Cy3), Ntspa662 (labeled with Cy5), and the EUB338 probe mix (labeled with FLUOS). The Thermomonas-like bacterium appears more red than yellow due to a weak EUB338 signal obtained for this organism. Scale bar = 10 microns. - Source:3

Aerobic heterotroph
Nitrite reduction
Short-chain fatty acids
Proteins/Amino acids

POSNEGVariableNot assessed


Likely denitrifiers 1. Thermomonas are facultatively aerobic heterotrophs 1, that have additionally been reported to assimilate soluble organic byproducts, excreted by the nitrifiers or from cellular decay 3. Substrates can be assimilated anaerobically in the absence of electron acceptor addition in situ, indicating unknown anaerobic activities 1. May be involved in phenol degradation 4.

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FISH probes

Thmm115 3


 In situOther
Aerobic Heterotroph15789
Nitrite Reduction5789
Sulfate Reduction
Short-chain Fatty Acids16789
Proteins/Amino Acids16789

Abundance Information

 10 % percentileMedian90 % percentile
Activated Sludge0.10.20.7

Predominant InActivated sludge


[1] McIlroy, Starnawska, Starnawski, Saunders, Nierychlo, Nielsen, et al. (2016): Identification of active denitrifiers in full-scale nutrient removal wastewater treatment systems. Environ. Microbiol. 18 (1): 50-64. doi:10.1111/1462-2920.12614

[2] - NCBI genome database, NCBI id 141948 -

[3] Dolinšek, Lagkouvardos, Wanek, Wagner, Daims (2013): Interactions of nitrifying bacteria and heterotrophs: identification of a Micavibrio-like putative predator of Nitrospira spp. Appl. Environ. Microbiol. 79 (6): 2027-37. doi:10.1128/AEM.03408-12

[4] Baek, Kim, Yin, Jeon, Im, Kim, et al. (2003): Isolation and characterization of bacteria capable of degrading phenol and reducing nitrate under low-oxygen conditions. Curr. Microbiol. 47 (6): 462-6.

[5] Mergaert, Cnockaert, Swings (2003): Thermomonas fusca sp. nov. and Thermomonas brevis sp. nov., two mesophilic species isolated from a denitrification reactor with poly(epsilon-caprolactone) plastic granules as fixed bed, and emended description of the genus Thermomonas. Int. J. Syst. Evol. Microbiol. 53 (Pt 6): 1961-6. doi:10.1099/ijs.0.02684-0

[6] Busse, Kämpfer, Moore, Nuutinen, Tsitko, Denner, et al. (2002): Thermomonas haemolytica gen. nov., sp. nov., a gamma-proteobacterium from kaolin slurry. Int. J. Syst. Evol. Microbiol. 52 (Pt 2): 473-83. doi:10.1099/00207713-52-2-473

[7] Alves, Rainey, Nobre, da Costa (2003): Thermomonas hydrothermalis sp. nov., a new slightly thermophilic gamma-proteobacterium isolated from a hot spring in central Portugal. Syst. Appl. Microbiol. 26 (1): 70-5.

[8] Kim, Im, In, Kim, Yang (2006): Thermomonas koreensis sp. nov., a mesophilic bacterium isolated from a ginseng field. Int. J. Syst. Evol. Microbiol. 56 (Pt 7): 1615-9. doi:10.1099/ijs.0.64049-0

[9] Wang, Zheng, Wang, Wang, Wang (2014): Thermomonas carbonis sp. nov., isolated from the soil of a coal mine. Int. J. Syst. Evol. Microbiol. 64 (Pt 11): 3631-5. doi:10.1099/ijs.0.063800-0

[10] Phuong, Kakii, Nikata (2009): Intergeneric coaggregation of non-flocculating Acinetobacter spp. isolates with other sludge-constituting bacteria. J. Biosci. Bioeng. 107 (4): 394-400. doi:10.1016/j.jbiosc.2008.11.020

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