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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 58, Issue 5

gen. nov., sp. nov., and sp. nov., acidobacteria isolated from alpine and forest soils Free

Abstract

The phylum is currently represented mostly by environmental 16S rRNA gene sequences, and the phylum so far contains only four species with validly published names, , , and . In the present study, two novel strains of acidobacteria were isolated. High-throughput enrichments were set up with the MicroDrop technique using an alpine calcareous soil sample and a mixture of polymeric carbon compounds supplemented with signal compounds. This approach yielded a novel, previously unknown acidobacterium, strain Jbg-1. The second strain, Wbg-1, was recovered from a co-culture with a methanotrophic bacterium established from calcareous forest soil. Both strains represent members of subdivision 1 of the phylum and are closely related to each other (98.0 % 16S rRNA gene sequence similarity). At a sequence similarity of 93.8–94.7 %, strains Jbg-1 and Wbg-1 are only distantly related to the closest described relative, KBS 63, and accordingly are described as members of the novel genus gen. nov. Based on the DNA–DNA relatedness between strains Jbg-1 and Wbg-1 of 11.5–13.6 % and their chemotaxonomic and phenotypic characteristics, the two strains are assigned to two separate species, sp. nov. (the type species), with strain Jbg-1 (=ATCC BAA-1329 =DSM 18101) as the type strain, and sp. nov., with strain Wbg-1 (=ATCC BAA-1497 =DSM 19364) as the type strain. The two novel species are adapted to low carbon concentrations and to neutral to slightly acidic conditions.

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2008-05-01
2024-04-20
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Edaphobacter modestus gen. nov., sp. nov., and Edaphobacter aggregans sp. nov., acidobacteria isolated from alpine and forest soils
Int J Syst Evol Microbiol 58, 1114 (2008); https://doi.org/10.1099/ijs.0.65303-0
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[PDF file of Supplementary Tables S1 and S2](124 KB)

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Affiliation of strains Jbg-1 and Wbg-1 calculated on the basis of 16S rRNA gene sequence information using the neighbour-joining algorithm, including an extended set of reference sequences. [PDF](343 KB)

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