Academic and industrial research on the genetic altering of yeast for commercial, medical, and scientific use is reviewed in 17 articles. Among the topics are phosphorous regulation, fission yeast, the role of mRNA in translation, carbon-source regulation of protein production, heterologous gene expression, mutants with increased secretion efficiency, cellulolytic strains, the synthesis and processing of thaumatin, and recombinant subunit vaccines. Annotation copyright Book News, Inc. Portland, Or.