The present disclosure relates to the transformed Synechococcus elongatus strain of capable of mass production of farnesene. The transformed Synechococcus elongatus strain of the present disclosure is characterized by having the ability to mass produce farnesene using carbon dioxide as an independent carbon source. In particular, the Synechococcus elongatus strain is economically effective because it uses carbon dioxide present in light and air as a carbon source. There is an eco-friendly effect since it can be used for eliminating or reducing carbon dioxide in the atmosphere using microorganisms. Further, the strain of the present disclosure has a rapid growth rate and excellent ability to fix carbon dioxide compared with other microorganisms, thereby being utilized in various fields such as food, medicine, pharmacy, biofuel, and chemistry.

The present disclosure provides a genetically modified host cell capable of producing linalool (or 3,7-dimethylocta-1,6-dien-3-ol).

Nucleic acid constructs encoding Geraniol Synthase (GS), Geraniol Reductase (GR), Geraniol Dehydrogenase (GD), and/or Citral Reductase (CR) and plants comprising same are provided.

Disclosed are production of terpenoid compound and the strain used by, which belong to the technical field of bioengineering. The disclosure constructs an engineered strain of Serratia marcescens in production of hemiterpenes or monoterpenes, and the engineered strain of S. marcescens can produce linalool, isoprene, isopentenol, 1,8-cineole, -pinene, pinene, -terpinene, geraniol, (+)-limonene, ()-limonene, myrcene, -ocimene, sabinene, ()--bisabolol, farnesol, longifolene, valencene, -elemene, farnesene, patchoulol, pentalenene, and -santalene. In a 30 L fermenter, the yield of linalool produced by the engineered strain of S. marcescens is 40.72 g.Math.L.sup.1.

The present invention relates to microorganisms for producing monoterpene indole al-kaloids (MIAs) and derivatives thereof de novo, including halogenated MIAs and halo-genated derivatives thereof. Also provided herein are methods for producing MIAs and derivatives thereof de novo, in particular halogenated MIAs and derivatives thereof, in a 5 microorganism, as well as useful nucleic acids, vectors and host cells for performing the present methods.