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|Research center of Embrapa/Collection:||Embrapa Cerrados - Documentos (INFOTECA-E)|
|Type of Material:||Documentos (INFOTECA-E)|
|Authors:||REIS JÚNIOR, F. B. dos|
FARIA, S. M. de
MENDES, I. de C.
SIMON, M. F.
LOUREIRO, M. de F.
ELLIOT, G. N.
SPRENT, J. I.
JAMES, E. K.
|Title:||"Beta-rizóbios": os novos simbiontes encontrados em espécies de Mimosa.|
|Publisher:||Planaltina, DF: Embrapa Cerrados, 2006.|
|Series/Report no.:||(Embrapa Cerrados. Documentos, 153).|
|Description:||The fixation and transformation of atmospheric dinitrogen into ammonia and hence into organic e compounds is a crucial part of the nitrogen cycle. Nitrogenase, the enzyme responsible, has a wide taxonomie distribution in the bacteria and archaea, but is confined to a limited number of species. Among these, rhizobia, whieh form nodules on the roots of legumes, are recognised as the main contributors of biologieally-fixed nitrogen. Until recently, it has been generally accepted that legumes are nodulated exelusively by members of the alfa-proteobaeteria belonging to a number of related genera in the family Rhizobiaceae. In this document we review some results from recent studies that presents the newly-discovered beta-rhizobia which challenge the accepted century-old dogma that only Rhizobium and its relatives can nodulate legumes and provide a biodiversity dimension that was totally unexpected 6 years ago.|
|Thesagro:||Fixação de Nitrogênio|
|NAL Thesaurus:||nitrogen fixation|
|Appears in Collections:||Série Documentos (CPAC)|