Candidatus BipolaricaulisDid we forget anything? Let us know

Genus nameCandidatus Bipolaricaulis
SourcePublished
Alternative names
NCBI taxonomy ID2250122

Taxonomy (MiDAS 2.0)

KingdomBacteria

16S gene copy number1
GenomesYes1

 In situOther
Filamentous1
Hydrophobic cell surface


Composite fluorescence micrograph of the "Candidatus Bipolaricaulis" cells, hybridized with the OP1-702 FISH probe (Cy3, red), and stained with Syto9 (green). Yellow signal indicates overlap of fluorescence from Cy3 and Syto9. Arrows indicate three slightly different morphologies: M1= central rod with bipolar prosthecae of similar length; M2= smaller central rod with bipolar prosthecae of different lengths; M3= smallest central rod with a single polar prostheca. An M1 cell which seems to be undergoing cell division is indicated with an asterisk. Scale bar represents 10 μm. - Source:1

Fermentation
Acetogen
Sugars
Proteins/Amino acids

POSNEGVariableNot assessed

Description

Novel genus belongs to phylum "Candidatus Bipolaricaulota", formerly "Candidatus Acetothermus". Single rod-shaped cells (~ 0.8 x 1~2 µm) with appendages (~ 0.4 x 4~8 µm) at both poles of the rod-shaped cell. Stably present in several mesophilic sludge digesters 1. Genomic reconstruction revealed a strictly anaerobic metabolism and fermentative physiology. Suggested to be involved in acidogenesis, producing organic acids (such as acetate and formate) and hydrogen from the fermentation of peptides, amino acids, and simple sugars (maltose, sucrose) 1.

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FISH probes

OP1-702, OP1-838. Both probes cover all near full-length sequences of the proposed genus 1. The OP1-702 probe requires the helper probe OP1-702H1, and the inclusion of the OP1-838H2 probe for OP1-838 gives a noticeable increase in signal and is therefore recommended. The OP1-702 had superior signal to the OP1-838 probe, and it is recommended applying them both with different fluorochromes for increased confidence in their specificity 1.

Metabolism

 In situOther
Chemoautotroph/Mixotroph
AOB
NOB
Anammox
Aerobic Heterotroph1
PAO
GAO
Nitrite Reduction
Sulfate Reduction
Fermentation1
Acetogen1
Methanogen
Short-chain Fatty Acids
Sugars1
Proteins/Amino Acids1

Abundance Information

 10 % percentileMedian90 % percentile
Influent000
Activated Sludge000
Digester-Mesophilic000
Digester-Thermophilic000

Predominant In

References

[1] Hao, McIlroy, Kirkegaard, Karst, Fernando, Aslan, et al. (2018): Novel prosthecate bacteria from the candidate phylum Acetothermia. ISME J 12 (9): 2225-2237. doi:10.1038/s41396-018-0187-9

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