NDLI: Effect of pH on Isolation and Distribution of Members of Subdivision 1 of the Phylum Acidobacteria Occurring in Soil

Content Provider	PubMed Central
Author	Sait, Michelle Davis, Kathryn E. R. Janssen, Peter H.
Copyright Year	2006
Abstract	The pH strongly influenced the development of colonies by members of subdivision 1 of the phylum Acidobacteria on solid laboratory media. Significantly more colonies of this group formed at pH 5.5 than at pH 7.0. At pH 5.5, 7 to 8% of colonies that formed on plates that were incubated for 4 months were formed by subdivision 1 acidobacteria. These colonies were formed by bacteria that spanned almost the entire phylogenetic breadth of the subdivision, and there was considerable congruence between the diversity of this group as determined by the cultivation-based method and by surveying 16S rRNA genes in the same soil. Members of subdivision 1 acidobacteria therefore appear to be readily culturable. An analysis of published libraries of 16S rRNAs or 16S rRNA genes showed a very strong correlation between the abundance of subdivision 1 acidobacteria in soil bacterial communities and the soil pH. Subdivision 1 acidobacteria were most abundant in libraries from soils with pHs of <6, but rare or absent in libraries from soils with pHs of >6.5. This, together with the selective cultivation of members of the group on lower-pH media, indicates that growth of many members of subdivision 1 acidobacteria is favored by slightly to moderately acidic growth conditions.
Related Links	http://dx.doi.org/10.1128/AEM.72.3.1852-1857.2006
Starting Page	1852
File Format	PDF
ISSN	10985336
e-ISSN	10985336
Journal	Applied and Environmental Microbiology
Issue Number	3
Volume Number	72
Language	English
Publisher	American Society for Microbiology
Publisher Date	2006-03-01
Access Restriction	Open
Rights Holder	American Society for Microbiology
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Ecology Food Science Applied Microbiology and Biotechnology Biotechnology

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