Soil microfoodweb structure and functions exhibit contrasted dynamics according to the quality of the litter added

16S and 18S pyrosequencing have been performed on the 0-5 cm layer of soil columns in a 91 days incubation experiment. The following treatment were tested: bare soil (Control), soil with incorporation of maize leaves (Leaves), soil with maize roots (Roots), soil with maize leaves and earthworms (Leaves + Lt) and soil with maize roots and earthworms (Roots + Lt). Measures were performed before the start of the experiment (Day 0) and 15, 35 and 91 days after the beginning of the experiment