FIG 5.

Archaeal and bacterial 16S rRNA gene community structures obtained by the clone analysis of iron mats from Tarama Knoll, the NW Eifuku Seamount, the Snail site, and the Urashima site. The numbers of sequenced clones in each clone library are shown in parentheses. MCG, uncultured miscellaneous crenarchaeotal group; DHVE5 and DHVE6, deep-sea hydrothermal vent euryarchaeotic groups 5 and 6; MGI, marine group I thaumarchaeota; HWCGI, hot-water crenarchaeotal group I; MBG-E, marine benthic group E euryarchaeota; BD1-5, EM19, JL-ETNP-Z39, TA06, and TM6, uncultured bacterial candidate divisions.