Genetic and phenetic analyses of Bradyrhizobium strains nodulating peanut (Arachis hypogaea L.) roots.

Applied and Environmental Microbiology
D Van RossumF C Boogerd

Abstract

Seventeen Bradyrhizobium sp. strains and one Azorhizobium strain were compared on the basis of five genetic and phenetic features: (i) partial sequence analyses of the 16S rRNA gene (rDNA), (ii) randomly amplified DNA polymorphisms (RAPD) using three oligonucleotide primers, (iii) total cellular protein profiles, (iv) utilization of 21 aliphatic and 22 aromatic substrates, and (v) intrinsic resistances to seven antibiotics. Partial 16S rDNA analysis revealed the presence of only two rDNA homology (i.e., identity) groups among the 17 Bradyrhizobium strains. The partial 16S rDNA sequences of Bradyrhizobium sp. strains form a tight similarity (> 95%) cluster with Rhodopseudomonas palustris, Nitrobacter species, Afipia species, and Blastobacter denitrificans but were less similar to other members of the alpha-Proteobacteria, including other members of the Rhizobiaceae family. Clustering the Bradyrhizobium sp. strains for their RAPD profiles, protein profiles, and substrate utilization data revealed more diversity than rDNA analysis. Intrinsic antibiotic resistance yielded strain-specific patterns that could not be clustered. High rDNA similarity appeared to be a prerequisite, but it did not necessarily lead to high similarity value...Continue Reading

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Citations

Nov 1, 1996·Canadian Journal of Microbiology·B E Urtz, G H Elkan
Sep 18, 2002·Journal of Applied Microbiology·Z YouD Borthakur
Apr 20, 2010·Plant Signaling & Behavior·Santi M MandalSatyahari Dey
Jun 1, 2007·Canadian Journal of Microbiology·Boulbaba L'taiefMokhtar Lachaâl
Feb 10, 2010·Journal of Basic Microbiology·Pablo BoginoWalter Giordano
Jun 29, 2002·Applied and Environmental Microbiology·Yasuhiro OdaLarry J Forney
Sep 28, 2007·Current Microbiology·Pablo BoginoWalter Giordano
Sep 28, 2015·International Journal of Systematic and Evolutionary Microbiology·Yong Hua LiWen Xin Chen
Mar 7, 2003·Applied and Environmental Microbiology·Dhruva BhattacharyaBanwari Lal
Mar 23, 2001·Canadian Journal of Microbiology·L M SaleenaS Nair
Mar 29, 2011·Current Microbiology·Jorge AngeliniAdriana Fabra
Nov 5, 1999·Applied and Environmental Microbiology·M A Parker
Jul 1, 1996·Applied and Environmental Microbiology·D PaffettiM Bazzicalupo
Aug 31, 2002·Journal of Clinical Microbiology·Rene TrothaBrigitte König

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