16S Ribosomal DNA Characterization of Nitrogen-Fixing Bacteria Isolated from Banana ( Musa spp.) and Pineapple ( Ananas comosus (L.) Merril)

Abstract
Nitrogen-fixing bacteria isolated from banana ( Musa spp.) and pineapple ( Ananas comosus (L.) Merril) were characterized by amplified 16S ribosomal DNA restriction analysis and 16S rRNA sequence analysis. Herbaspirillum seropedicae , Herbaspirillum rubrisubalbicans , Burkholderia brasilensis, and Burkholderia tropicalis were identified. Eight other types were placed in close proximity to these genera and other alpha and beta Proteobacteria .

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