Title:	Rhizobial characterization in revegetated areas after bauxite mining.
Authors:	BORGES, W. L. PRIN, Y. DUCOUSSO, M. LE ROUX, C. FARIA, S. M. de
Affiliation:	WARDSSON LUSTRINO BORGES, CPAF-AP; YVES PRIN, CIRAD, Montpellier, France; MARC DUCOUSSO, CIRAD, Montpellier, France; CHRISTINE LE ROUX, CIRAD, Montpellier, France; SERGIO MIANA DE FARIA, CNPAB.
Date Issued:	2016
Citation:	Brazilian Journal of Microbiology, São Paulo, v. 47, p. 314-321, 2016.
Description:	Little is known regarding how the increased diversity of nitrogen-fixing bacteria contributesto the productivity and diversity of plants in complex communities. However, some authorshave shown that the presence of a diverse group of nodulating bacteria is required for dif-ferent plant species to coexist. A better understanding of the plant symbiotic organismdiversity role in natural ecosystems can be extremely useful to define recovery strategies ofenvironments that were degraded by human activities. This study used ARDRA, BOX-PCRfingerprinting and sequencing of the 16S rDNA gene to assess the diversity of root nodulenitrogen-fixing bacteria in former bauxite mining areas that were replanted in 1981, 1985,1993, 1998, 2004 and 2006 and in a native forest. Among the 12 isolates for which the 16SrDNA gene was partially sequenced, eight, three and one isolate(s) presented similarity withsequences of the genera Bradyrhizobium, Rhizobium and Mesorhizobium, respectively. The rich-ness, Shannon and evenness indices were the highest in the area that was replanted theearliest (1981) and the lowest in the area that was replanted most recently (2006).
Thesagro:	Fixação simbiótica de nitrogênio Nodulação Simbiose
NAL Thesaurus:	nodulation symbiosis
Keywords:	Symbiotic nitrogen fixation
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CPAF-AP)