_:b1218300 "A part of an indeterminate root nodule where each cell contains a large, central vacuole and the cytoplasm is filled with fully differentiated bacteroids which are actively fixing nitrogen. Typically, the plant provides these cells with leghemoglobin, resulting in a distinct pink color."^^ . _:b1218300 . _:b1218300 "Wikipedia:Root_nodule"^^ . _:b1218300 . _:b1218300 .