Abstract
A molecular ecological study was performed on an Australian soil sample to unravel a substantial portion of the bacterial diversity. A large fragment of the 16S rRNA gene was amplified, using DNA isolated by lysing the microorganisms directly within the soil matrix, and a clone library was generated. Comparative sequence analysis of 30 clones and dot blot hybridization of 83 additional clones with defined oligonucleotide probes revealed the presence of three major groups of prokaryotes of the domain Bacteria. The first one comprises 57 clones that indicate relatives of nitrogen-fixing bacteria of the alpha-2 subclass of the class Proteobacteria; the second group of 7 clones originates from members of the order Planctomycetales that, however, reveal no close relationship to any of the described Planctomycetales species; 22 clones of the third group are indicative of members of a novel main line of descent, sharing a common ancestry with members of planctomycetes and chlamydiae.
MeSH Terms
Australia
Bacteria/classification
Base Sequence
Cloning, Molecular
DNA, Bacterial/isolation & purification
Molecular Sequence Data
Phylogeny
Polymerase Chain Reaction
RNA, Ribosomal, 16S/genetics
Soil Microbiology
Chemicals
DNA, Bacterial
RNA, Ribosomal, 16S
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Liesack W
Department of Microbiology, University of Queensland, St. Lucia, Australia.
Stackebrandt E
References (19)
19 references, click to expand
-
Separation and purification of bacteria from soil.
Appl Environ Microbiol. 1985 Jun;49(6):1482-7
PMID: 16346816
-
Polymerase chain reaction: applications in environmental microbiology.
Annu Rev Microbiol. 1991;45:137-61
PMID: 1741613
-
Genetic diversity in Sargasso Sea bacterioplankton.
Nature. 1990 May 3;345(6270):60-3
PMID: 2330053
-
DNA Probe Method for the Detection of Specific Microorganisms in the Soil Bacterial Community.
Appl Environ Microbiol. 1988 Mar;54(3):703-711
PMID: 16347582
-
Gemmata obscuriglobus, a new genus and species of the budding bacteria.
Antonie Van Leeuwenhoek. 1984;50(3):261-8
PMID: 6486770
-
16S ribosomal DNA amplification for phylogenetic study.
J Bacteriol. 1991 Jan;173(2):697-703
PMID: 1987160
-
Partial 16S rRNA primary structure of five Actinomyces species: phylogenetic implications and development of an Actinomyces israelii-specific oligonucleotide probe.
J Gen Microbiol. 1990 Jan;136(1):37-43
PMID: 1693659
-
Bacterial evolution.
Microbiol Rev. 1987 Jun;51(2):221-71
PMID: 2439888
-
Membrane-bounded nucleoid in the eubacterium Gemmata obscuriglobus.
Proc Natl Acad Sci U S A. 1991 Sep 15;88(18):8184-8
PMID: 11607213
-
Identification in situ and phylogeny of uncultured bacterial endosymbionts.
Nature. 1991 May 9;351(6322):161-4
PMID: 1709451
-
16S rRNA sequences reveal numerous uncultured microorganisms in a natural community.
Nature. 1990 May 3;345(6270):63-5
PMID: 1691827
-
Eubacterial origin of chlamydiae.
J Bacteriol. 1986 Aug;167(2):570-4
PMID: 3525517
-
Primer-directed enzymatic amplification of DNA with a thermostable DNA polymerase.
Science. 1988 Jan 29;239(4839):487-91
PMID: 2448875
-
Evidence for unlinked rrn operons in the Planctomycete Pirellula marina.
J Bacteriol. 1989 Sep;171(9):5025-30
PMID: 2768196
-
Microbial ecology and evolution: a ribosomal RNA approach.
Annu Rev Microbiol. 1986;40:337-65
PMID: 2430518
-
16S rRNA sequences of uncultivated hot spring cyanobacterial mat inhabitants retrieved as randomly primed cDNA.
Appl Environ Microbiol. 1991 Apr;57(4):1146-51
PMID: 1711832
-
Phylogenetic analysis of a natural marine bacterioplankton population by rRNA gene cloning and sequencing.
Appl Environ Microbiol. 1991 Jun;57(6):1707-13
PMID: 1714704
-
Recovery of DNA from soils and sediments.
Appl Environ Microbiol. 1988 Dec;54(12):2908-15
PMID: 2851961
-
Compilation of small ribosomal subunit RNA sequences.
Nucleic Acids Res. 1990 Apr 25;18 Suppl:2237-317
PMID: 1692117