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Rhizobium giardinii is the microsymbiont of Illinois bundleflower (Desmanthus illinoensis (Michx.) Macmillan) in midwestern prairies

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Illinois bundleflower (Desmanthus illinoensis (Michx.) Macmillan) has potential as a grain and forage legume for the American Midwest. Inoculant-quality rhizobia for this legume have been identified but not previously characterized. Rhizobia trapped from 20 soils in the natural range of the Illinois bundleflower had characteristics that placed them overwhelmingly within the species Rhizobium giardinii, one of the few occasions this species has been recovered from legumes, raising questions on the biogeography and spread of midwestern prairie rhizobia.Key words: Rhizobium taxonomy, biogeography, diversity, prairie legumes.

Le mimosa de l'Illinois (Desmanthus illinoensis (Michx.) Macmillan) a un potentiel comme céréale et comme légumineuse fourragère dans le Midwest américain. Des rhizobiums de qualité propice à l'inoculation chez cette légumineuse ont été identifiés, mais n'ont pas été encore caractérisés. Des rhizobiums récoltés à partir de 20 échantillons de sol provenant d'habitats naturels du mimosa de l'Illinois possédaient des caractéristiques qui les plaçaient sans aucun doute au sein de l'espèce Rhizobium giardinii, un des seuls exemples où cette espèce a pu être récupérée à partir de légumineuses, ce qui soulève des questions sur la biogéographie et la dissémination des rhizobiums des prairies du Midwest.Mots clés : taxonomie de Rhizobium, biogéographie, diversité, légumineuses des prairies.[Traduit par la Rédaction]

Document Type: Research Article

Publication date: September 1, 2006

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  • Published since 1954, this monthly journal contains new research in the field of microbiology including applied microbiology and biotechnology; microbial structure and function; fungi and other eucaryotic protists; infection and immunity; microbial ecology; physiology, metabolism and enzymology; and virology, genetics, and molecular biology. It also publishes review articles and notes on an occasional basis, contributed by recognized scientists worldwide.
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