DALILA RIBEIRO RODRIGUES, UNIVERSIDADE ESTADUAL DA PARAÍBAALEKSANDRO FERREIRA DA SILVA, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCOKATHERINE GOMES OLIVEIRA, UNIVERSIDADE DE PERNAMBUCOTAILANE RIBEIRO DO NASCIMENTO, UNIVERSIDADE DE PERNAMBUCOREJANE DE CARVALHO NASCIMENTO, UNIVERSIDADE DE PERNAMBUCOMARIA IDALINE PESSOA CAVALCANTE, UNIVERSIDADE ESTADUAL DA PARAÍBAINDRA ELENA COSTA ESCOBAR, UNIVERSIDADE FEDERAL DO VALE DO SÃO FRANCISCOANA DOLORES SANTIAGO DE FREITAS, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCOPAULO IVAN FERNANDES JUNIOR, CPATSA.2026-07-07http://hdl.handle.net/123456789/498733O presente estudo teve como objetivo a caracterização fenotípica cultural e a amplificação dos genes nifH e nodC de bactérias isoladas de nódulos de angico cultivadas em solos de áreas nativas em e em regeneração no Agreste pernambucano. The use of inoculated legumes with nitrogen fixing bacteria is a strategy to improve land reclamation practices. In addition the use of these bacteria can help the establishment of the plants in the field at reduced cost and low environmental impact. The selection and evaluation of bacterial diversity are important, but these kind of results are scarce in the Brazilian Semi-arid. The aim of this study was to select bacteria from angico nodules by means of its phenotypical characteristics and amplification of symbiotic genes by PCR (Polymerase Chain Reaction). From the 32 bacterial isolates that were evaluated, all of them amplified positively the nifH gene and 24 amplified both the nifH and nodC genes. All bacteria presented fast growth and acidified the culture medium, and diverged in other phenotypical features. These results indicate variability in the amplification profiles and phenotypical features evaluated. Keywords: Biological Nitrogen Fixation, Rhizobia, Land Reclamation, Caatinga.1 CD-ROM.openAccessRizóbioRecuperação de terrasFixação Biológica de NitrogênioBiological nitrogen fixationLand reclamationSoloCaatingaBactériaSoilArtigo em anais e proceedings