title: Molecular phylogenetic diversity of bacteria associated with soil of the savanna-like Cerrado vegetation.
abstract: The Brazilian savanna-like vegetation of Cerrado is rapidly being converted to pasture and agricultural fields. A 16S rDNA-based approach was taken to study the bacterial community associated with the soil of a native cerrado area (sensu stricto) and an area that has been converted to pasture. The bacterial group most abundantly identified in cerrado sensu stricto soil was the alpha-Proteobacteria while in cerrado converted to pasture the Actinobacteria were the most abundant. Rarefaction curves indicate that the species richness of cerrado sensu stricto is greater than that of cerrado converted to pasture. Furthermore, lineage-through-time plots show that the expected richness of species present in cerrado sensu stricto soil is approximately 10 times greater than that of cerrado converted to pasture.
authors.affiliation: Program in Genomic Sciences and Biotechnology, Universidade Católica de Brasília, SGAN Quadra 916, Av. W5 Norte, 70790-160 Brasília, DF, Brazil.
authors.forename: Betania F
authors.initials: BF
authors.lastname: Quirino
authors.forename: Georgios J
authors.initials: GJ
authors.lastname: Pappas
authors.forename: Andrea C
authors.initials: AC
authors.lastname: Tagliaferro
authors.forename: Rosane G
authors.initials: RG
authors.lastname: Collevatti
authors.forename: Eduardo Leonardecz
authors.initials: EL
authors.lastname: Neto
authors.forename: Maria Regina S S
authors.initials: MR
authors.lastname: da Silva
authors.forename: Mercedes M C
authors.initials: MM
authors.lastname: Bustamante
authors.forename: Ricardo H
authors.initials: RH
authors.lastname: Krüger
mesh_terms: D001419:Bacteria / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification*; D044822:Biodiversity; D001938:Brazil; D004269:DNA, Bacterial / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D008969:Molecular Sequence Data; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012988:Soil Microbiology; D014329:Tropical Climate
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D012336:RNA, Ribosomal, 16S