Replication Data for: Priming of soil organic matter: chemical structure of added compounds is more important than the energy content

In the laboratory, fresh soil was sieved (4 mm), homogenized and stored at 4 ºC until further use. We report the following data: - CO2 evolution after addition of 13C labelled substrates (glucose, cellobiose and vanillic acid) to the soil. - Abundance of microbial groups (fungi and/or bacteria) that used labeled and non-labeled carbon, measured as increase in 16S rRNA gene copy numbers and 18SrDNA copy numbers, for bacteria and fungi respectively, per g of soil. - Biomass yield (for fungi and bacteria separately) for three substrates (glucose, cellobiose and vanillic acid), used that as a proxy for microbial usable energy