Tropical soils are a reservoir for fluorescent Pseudomonas spp. biodiversity

Autor(es)

Lopes, Lucas Dantas ^{[1, 2]} ; Davis, II, Edward W. ; Pereira e Silva, Michele de C. ^[2] ; Weisberg, Alexandra J. ^[3] ; Bresciani, Luana ^[2] ; Chang, Jeff H. ^{[3, 4]} ; Loper, Joyce E. ^{[3, 4]} ; Andreote, Fernando D. ^[2]

Afiliação do(s) autor(es)

^[1] Oregon State Univ, Dept Bot & Plant Pathol, Corvallis, OR 97331 - USA

^[2] Univ Sao Paulo, Luiz de Queiroz Coll Agr, Dept Soil Sci, Piracicaba, SP - Brazil

^[3] Davis, Edward W., II, Oregon State Univ, Dept Bot & Plant Pathol, Corvallis, OR 97331 - USA

^[4] Davis, Edward W., II, Oregon State Univ, Mol & Cellular Biol Program, Corvallis, OR 97331 - USA

• Tipo de documento: Artigo Científico
• Fonte: ENVIRONMENTAL MICROBIOLOGY; v. 20, n. 1, p. 62-74, JAN 2018.
• Citações Web of Science: 3

Resumo

Fluorescent Pseudomonas spp. are widely studied for their beneficial activities to plants. To explore the genetic diversity of Pseudomonas spp. in tropical regions, we collected 76 isolates from a Brazilian soil. Genomes were sequenced and compared to known strains, mostly collected from temperate regions. Phylogenetic analyses classified the isolates in the P. fluorescens (57) and P. putida (19) groups. Among the isolates in the P. fluorescens group, most (37) were classified in the P. koreensis subgroup and two in the P. jessenii subgroup. The remaining 18 isolates fell into two phylogenetic subclades distinct from currently recognized P. fluorescens subgroups, and probably represent new subgroups. Consistent with their phylogenetic distance from described subgroups, the genome sequences of strains in these subclades are asyntenous to the genome sequences of members of their neighbour subgroups. The tropical isolates have several functional genes also present in known fluorescent Pseudomonas spp. strains. However, members of the new subclades share exclusive genes not detected in other subgroups, pointing to the potential for novel functions. Additionally, we identified 12 potential new species among the 76 isolates from the tropical soil. The unexplored diversity found in the tropical soil is possibly related to biogeographical patterns. (AU)

• Processo FAPESP: 13/50353-7 - Microbial consortia for biowaste management: life cycle analysis of novel strategies of bioconversion (MICROWASTE)
• Beneficiário: Fernando Dini Andreote
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Regular