Three leaves of errata inserted before title page. / Bibliography: leaves 150-181. / xi, 181 leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Determines whether growing cells of F. nucleatum ATCC 25586 could actually utilise peptides to provide the energy-yielding amino acid residues. Overall shows the important role of aminopeptidase in the nutrition and survival of F. nucleatum. / Thesis (Ph.D.)--University of Adelaide, Dept. of Dentistry, 1998