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Azorhizobium doebereinerae st Nov microsymbiont of Sesbania virgata (Caz.) pers.

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Published copy (DOI)

Author(s)

  • F M D Moreira
  • L Cruz
  • S M de Faria
  • T Marsh
  • E Martinez-Romero
  • F D Pedrosa
  • R M Pitard
  • J P W Young

Department/unit(s)

Publication details

JournalSYSTEMATIC AND APPLIED MICROBIOLOGY
DatePublished - Apr 2006
Issue number3
Volume29
Number of pages10
Pages (from-to)197-206
Original languageEnglish

Abstract

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 caulincidans (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. (c) 2005 Elsevier GmbH. All rights reserved.

    Research areas

  • taxonomy, tropical legume, specificity, root nodules, nitrogen-fixing species, GENOTYPIC CHARACTERIZATION, NODULATING BACTERIA, POLYPHASIC TAXONOMY, RHIZOBIA, LEGUMES, TREE, NITROGEN, GENUS, ELECTROPHORESIS, SYSTEMATICS

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