DechloromonasDid we forget anything? Let us know

Genus nameDechloromonas
Alternative namesIncludes Bet135 sub-group
NCBI taxonomy ID73029

Taxonomy (MiDAS 2.0)


16S gene copy number3

 In situOther
Hydrophobic cell surface

Composite FISH micrographs of Dechloromonas-related (Dech443) in a full-scale WWTP. Target cells in FISH micrograph overlays appear magenta [target probe (CY3 = red) + EUBmix (CY5 = blue)] and non-target blue (EUBmix only). Scale bar represents 20 microns. - Source:1

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

POSNEGVariableNot assessed


Rods/coccobacilli, sometimes forming microcolonies 1 2. Able to assimilate VFAs under anoxic conditons and utilise nitrite as electron acceptor indicating a role in dentrification. Some appear to possess the PAO phenotype 1 2, while members of the genus have also been reported as putative competitors of the PAO in EBPR 5. A recent isolate of the genus from a full-scale nutrient removal system, was shown to accumulate relatively high levels of polyphosphate in axenic culture 11. Suggested to be involved in perchlorate reduction 6.

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Bet135 2 and Dech443 1 sub-groups described.

FISH probes

Dechlo2 (also targets Ferribacterium) 7, Bet135 (sub-group of denitrifying PAO that are not covered by the Dechlo2 probe) 3


 In situOther
Aerobic Heterotroph138910
Nitrite Reduction1289
Sulfate Reduction9
Short-chain Fatty Acids12368910
Proteins/Amino Acids139

Abundance Information

 10 % percentileMedian90 % percentile
Activated Sludge0.10.84.9

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] Ginige, Keller, Blackall (2005): Investigation of an acetate-fed denitrifying microbial community by stable isotope probing, full-cycle rRNA analysis, and fluorescent in situ hybridization-microautoradiography. Appl. Environ. Microbiol. 71 (12): 8683-91. doi:10.1128/AEM.71.12.8683-8691.2005

[3] Kong, Xia, Nielsen, Nielsen (2007): Structure and function of the microbial community in a full-scale enhanced biological phosphorus removal plant. Microbiology (Reading, Engl.) 153 (Pt 12): 4061-73. doi:10.1099/mic.0.2007/007245-0

[4] - NCBI genome database, NCBI id 73029 -

[5] Ahn, Schroeder, Beer, McIlroy, Bayly, May, et al. (2007): Ecology of the microbial community removing phosphate from wastewater under continuously aerobic conditions in a sequencing batch reactor. Appl. Environ. Microbiol. 73 (7): 2257-70. doi:10.1128/AEM.02080-06

[6] Nor, Lee, Cho, Cha, Lee, Ryu, et al. (2011): Microbial treatment of high-strength perchlorate wastewater. Bioresour. Technol. 102 (2): 835-41. doi:10.1016/j.biortech.2010.08.127

[7] Sanguin, Herrera, Oger-Desfeux, Dechesne, Simonet, Navarro, et al. (2006): Development and validation of a prototype 16S rRNA-based taxonomic microarray for Alphaproteobacteria. Environ. Microbiol. 8 (2): 289-307. doi:10.1111/j.1462-2920.2005.00895.x

[8] Achenbach, Michaelidou, Bruce, Fryman, Coates (2001): Dechloromonas agitata gen. nov., sp. nov. and Dechlorosoma suillum gen. nov., sp. nov., two novel environmentally dominant (per)chlorate-reducing bacteria and their phylogenetic position. Int. J. Syst. Evol. Microbiol. 51 (Pt 2): 527-33. doi:10.1099/00207713-51-2-527

[9] Horn, Ihssen, Matthies, Schramm, Acker, Drake, et al. (2005): Dechloromonas denitrificans sp. nov., Flavobacterium denitrificans sp. nov., Paenibacillus anaericanus sp. nov. and Paenibacillus terrae strain MH72, N2O-producing bacteria isolated from the gut of the earthworm Aporrectodea caliginosa. Int. J. Syst. Evol. Microbiol. 55 (Pt 3): 1255-65. doi:10.1099/ijs.0.63484-0

[10] Wolterink, Kim, Muusse, Kim, Roholl, van Ginkel, et al. (2005): Dechloromonas hortensis sp. nov. and strain ASK-1, two novel (per)chlorate-reducing bacteria, and taxonomic description of strain GR-1. Int. J. Syst. Evol. Microbiol. 55 (Pt 5): 2063-8. doi:10.1099/ijs.0.63404-0

[11] Terashima, Yama, Sato, Yumoto, Kamagata, Kato, et al. (2016): Culture-Dependent and -Independent Identification of Polyphosphate-Accumulating Dechloromonas spp. Predominating in a Full-Scale Oxidation Ditch Wastewater Treatment Plant. Microbes Environ. 31 (4): 449-455. doi:10.1264/jsme2.ME16097

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