New Biological Insights Into How Deforestation in Amazonia Affects Soil Microbial Communities Using Metagenomics and Metagenome-Assembled Genomes

Autor(es):Mostrar menos -

Kroeger, Marie E. ^[1] ; Delmont, Tom O. ^[2] ; Eren, A. M. ^{[2, 3]} ; Meyer, Kyle M. ^[4] ; Guo, Jiarong ^[5] ; Khan, Kiran ^[1] ; Rodrigues, Jorge L. M. ^[6] ; Bohannan, Brendan J. M. ^[4] ; Tringe, Susannah G. ^[7] ; Borges, Clovis D. ^[8] ; Tiedje, James M. ^[5] ; Tsai, Siu M. ^[8] ; Nusslein, Klaus ^[1]

Afiliação do(s) autor(es)

^[1] Univ Massachusetts, Dept Microbiol, Amherst, MA 01003 - USA

^[2] Univ Chicago, Dept Med, 5841 S Maryland Ave, Chicago, IL 60637 - USA

^[3] Josephine Bay Paul Ctr, Marine Biol Lab, Woods Hole, MA - USA

^[4] Univ Oregon, Inst Ecol & Evolut, Eugene, OR 97403 - USA

^[5] Michigan State Univ, Ctr Microbial Ecol, E Lansing, MI 48824 - USA

^[6] Univ Calif Davis, Dept Land Air & Water Resources, Davis, CA 95616 - USA

^[7] US DOE, Joint Genome Inst, Walnut Creek, CA - USA

^[8] Univ Sao Paulo, Ctr Energia Nucl Agr, Piracicaba - Brazil

• Tipo de documento: Artigo Científico
• Fonte: FRONTIERS IN MICROBIOLOGY; v. 9, JUL 23 2018.
• Citações Web of Science: 4

Resumo

Deforestation in the Brazilian Amazon occurs at an alarming rate, which has broad effects on global greenhouse gas emissions, carbon storage, and biogeochemical cycles. In this study, soil metagenomes and metagenome-assembled genomes (MAGs) were analyzed for alterations to microbial community composition, functional groups, and putative physiology as it related to land-use change and tropical soil. A total of 28 MAGs were assembled encompassing 10 phyla, including both dominant and rare biosphere lineages. Amazon Acidobacteria subdivision 3, Melainabacteria, Microgenomates, and Parcubacteria were found exclusively in pasture soil samples, while Candidatus Rokubacteria was predominant in the adjacent rainforest soil. These shifts in relative abundance between land-use types were supported by the different putative physiologies and life strategies employed by the taxa. This research provides unique biological insights into candidate phyla in tropical soil and how deforestation may impact the carbon cycle and affect climate change. (AU)

• Processo FAPESP: 14/50320-4 - Dimensões US-BIOTA - São Paulo: pesquisa colaborativa: integrando as dimensões da biodiversidade microbiana ao longo de áreas de alteração do uso da terra em florestas tropicais
• Beneficiário: Tsai Siu Mui
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático