Concentration of planctomycetes (a phylum of aquatic bacteria) in P3 alkaline compartment of hindgut

Range ≤2.6e+9 planctomycetes/ml
Organism Termite Cubitermes ugandensis
Reference Köhler T, Stingl U, Meuser K, Brune A. Novel lineages of Planctomycetes densely colonize the alkaline gut of soil-feeding termites (Cubitermes spp.). Environ Microbiol. 2008 May10(5):1260-70 doi: 10.1111/j.1462-2920.2007.01540.x. abstract & p.1265 right column bottom paragraphPubMed ID18279348
Primary Source Schmitt-Wagner, D., Friedrich, M.W., Wagner, B., and Brune, A. (2003) Phylogenetic diversity, abundance, and axial distribution of bacteria in the intestinal tract of two soilfeeding termites (Cubitermes spp.). Appl Environ Microbiol 69: 6007–6017.PubMed ID14532056
Method "Members of the phylum Planctomycetes are found in aquatic and terrestrial habitats. Here [researchers] show that the highest density of Planctomycetes in natural environments (2.6×10^9 cells/ml) is encountered in the hindgut of soil-feeding termites (Cubitermes spp.), where they constitute up to one-third of the bacteria in the alkaline P3 compartment detected by fluorescent in situ hybridization (FISH)."
Comments "The intestinal tract of soil-feeding termites is the natural environment with the highest density of planctomycetes reported to date. Based on volumetric data for C. ugandensis (primary source), the P3 compartments of the Cubitermes species studied contain up to 2.6×10^9 planctomycetes per ml, representing up to 30% of the bacteria detectable by FISH and 17% of the cells stained with DAPI [4',6-diamidino-2-phenylindole]. Although the densities in other natural environments are lower (1.8×10^8/ml in intertidal sediments Musat et al., 2006 1.1×10^7/ g soil in acidic peat bogs Dedysh et al., 2006)…"
Entered by Uri M
ID 104952