Figure 4

Normalized epiphytic (EP), washing water (WW) and cultivation water (CW) DGGE fingerprints obtained from Bryopsis samples MX19, MX90, MX164, MX263 and MX344. Numbers (1-27) indicate which bands were sequenced, and correspond to band numbers in Table 1 and Figure 5. The first and last lanes contain a molecular marker of which each band (M1m, M1b, M2-M10) corresponds to a known Bryopsis endophyte or chloroplast sequence (see additional file 2). This marker was used as a normalization and identification tool.