 Sinicoccus SPPCC-7002 has been engineered to produce high levels of limonene and alphabysabolene through heterologous expression of the menthispecata-eliminine synthase or the AB's grandis, alphabysabolene synthase genes, respectively. Additionally, the Sinicoccus SPPCC-7002 delta-GLGC mutant has been shown to excrete a variety of overflow metabolites during nitrogen deprivation and at the onset of stationary growth in nutrient-replete media. These metabolites may provide a source of carbon for terpenoid biosynthesis, as demonstrated by the increased concentrations of these compounds when the delta-GLGC mutant is engineered to produce limonene. This article was authored by Fiona K. Davies, Victoria H. Work, Alexander S. Believ and others.