Portal de Periódicos da CAPES

Artigo Acesso aberto Produção Nacional Revisado por pares

BIBTEX RIS

Vinasse fertirrigation alters soil resistome dynamics: an analysis based on metagenomic profiles

2017; BioMed Central; Volume: 10; Issue: 1 Linguagem: Inglês

10.1186/s13040-017-0138-4

1756-0381

Lucas P. P. Braga, Rafael Ferraz Alves, Marina Dellias, Acácio Aparecido Navarrete, Thiago Olitta Basso, Siu Mui Tsai,

Soil Carbon and Nitrogen Dynamics

Every year around 300 Gl of vinasse, a by-product of ethanol distillation in sugarcane mills, are flushed into more than 9 Mha of sugarcane cropland in Brazil. This practice links fermentation waste management to fertilization for plant biomass production, and it is known as fertirrigation. Here we evaluate public datasets of soil metagenomes mining for changes in antibiotic resistance genes (ARGs) of soils from sugarcane mesocosms repeatedly amended with vinasse. The metagenomes were annotated using the ResFam database. We found that the abundance of open read frames (ORFs) annotated as ARGs changed significantly across 43 different families (p-value < 0.05). Co-occurrence network analysis revealed distinct patterns of interactions among ARGs, suggesting that nutrient amendment to soil microbial communities can impact on the coevolutionary dynamics of indigenous ARGs within soil resistome.