We occasionally post very brief taxonomic pieces on selected bacterial groups. Be warned that we may not be fully attentive to the taxon level and may mix up genera and higher taxa.
The Acidobacteria are an offspring of metagenomics. Their existence as a phylum was not known until 1997, when their existence was first noticed using 16S rRNA techniques. But these are no obscure oddities living in extreme environments. Look for them in soils where they are among the most abundant bacteria, particularly in acidic soils where they make up 30-50% of all the 16S rDNA clone libraries. Belying their name, some of these organisms are found in alkaline environments, but the majority remains true to it and prefers a low pH.
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