Azorhizobium doebereinerae sp. Nov. Microsymbiont of Sesbania virgata (Caz.) Pers

Thirty-four rhizobium strains were isolated from root nodules of the fast-growing woody native species Sesbania virgata in different regions of southeast Brazil (Minas Gerais and Rio de Janeiro States). These isolates had cultural characteristics on YMA quite similar to Azorhizobium caulinodans (alk...

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Bibliographic Details
Published in:Systematic and applied microbiology 2006-04, Vol.29 (3), p.197-206
Main Authors: Maria de Souza Moreira, Fátima, Cruz, Leonardo, Miana de Faria, Sérgio, Marsh, Terence, Martínez-Romero, Esperanza, de Oliveira Pedrosa, Fábio, Maria Pitard, Rosa, Peter W. Young, J.
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Azorhizobium
Azorhizobium - classification
Azorhizobium - genetics
Azorhizobium - isolation & purification
Azorhizobium - metabolism
Azorhizobium caulinodans
Azorhizobium doebereinerae
bacterial proteins
Bacteriology
Biological and medical sciences
Economic plant physiology
Fundamental and applied biological sciences. Psychology
legumes
Microbiology
Miscellaneous
Molecular Sequence Data
molecular systematics
new species
nitrogen-fixing bacteria
Nitrogen-fixing species
nitrogenase
phylogeny
Polymerase Chain Reaction
Rhizobium
ribosomal DNA
RNA, Ribosomal, 16S - chemistry
Root nodules
sequence analysis
Sesbania
Sesbania - microbiology
Sesbania virgata
Specificity
symbionts
Symbiosis
Symbiosis (nodules, symbiotic nitrogen fixation, mycorrhiza...)
Taxonomy
Tropical legume
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Description
Summary:Thirty-four rhizobium strains were isolated from root nodules of the fast-growing woody native species Sesbania virgata in different regions of southeast Brazil (Minas Gerais and Rio de Janeiro States). These isolates had cultural characteristics on YMA quite similar to Azorhizobium caulinodans (alkalinization, scant extracellular polysaccharide production, fast or intermediate growth rate). They exhibited a high similarity of phenotypic and genotypic characteristics among themselves and to a lesser extent with A. caulinodans. DNA:DNA hybridization and 16SrRNA sequences support their inclusion in the genus Azorhizobium, but not in the species A. caulinodans. The name A. doebereinerae is proposed, with isolate UFLA1-100 (=BR5401, =LMG9993=SEMIA 6401) as the type strain.
ISSN:0723-2020
1618-0984
DOI:10.1016/j.syapm.2005.09.004