Semithin section and TEM micrographs of <i>Osedax deceptionensis</i> transition bone-roots a Eroded bone layer (<i>bo</i>) and root mucous sheath (<i>ms</i>) containing root cells (<i>c</i>).

Inset with two protein droplets (pro) close to the mucous sheath, b Detail of a nucleus (n) of a root cell and the highly convoluted root mucous sheath (ms). Lipid droplets (lip) into the root cell, c Vacuolar structure engulfing protein (pro) and lipid (lip) droplets, d Detail of vacuolar structure showing lipid droplets (lip) and granular inclusions (gin). Inset showing two granular inclusions in detail.