Table 1. Descriptive metrics of the contigs resulting from the high-throughput sequencing of exDNA fragments purified from the culture media samples. For each sample, the number, length and mean FPKM values are shown for all contigs, and separately for contigs either shorter or longer than 100 bp and, among the latter, for different classes of FPKM ranges: > 1000, 100-to-1000, 10-to-100, < 10.