BMC Microbiol. 16:42. doi: 10.1186/s12866-016-0657-z. 2016.
The Cerrado–an edaphic type of savannah–comprises the second largest biome of the Brazilian territory and is the main area for grain production in the country, but information about the impact of land conversion to agriculture on microbial diversity is still scarce. We used a shotgun metagenomic approach to compare undisturbed (native) soil and soils cropped for 23 years with soybean/maize under conservation tillage–“no-till” (NT)–and conventional tillage (CT) systems in the Cerrado biome.