Includes bibliographies. / 104, [64] leaves, [18] leaves of plates : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / This thesis describes the isolation of putative promoter sequences that can produce differential expression of a gene during anaerobic wine fermentations, the use of these sequences in the development of expression vectors and the application of this work to the production of genetically engineered wine yeasts for commercial purposes. / Thesis (Ph.D.)--University of Adelaide, Dept. of Plant Science, 1997?