Synthetic biology is a new field under the guidance of engineering

which aims to redesign and rebuild natural biological systems

and meanwhile

design and synthesize new biological part

module and system.The advent of synthetic biology represents the tendency of natural science.Some marked achievements have been made in the areas of medicine and energy via synthetic biology methods.On one hand

novel synthesizing pathways have been successfully constructed in engineered cells to produce amorphadiene and taxadiene

which are precursors of antimalarial drug artemisinin and anticarcinogen taxol respectively.On the other hand

the constructions of fatty acid ester

fatty alcohol and higher alcohols synthesizing pathways have also been realized.In addition

several related synthetic bio-techniques accelerate reconstruction and evolution of engineered cells

which would offer convenient tools to construct novel functional cells for the purpose of bio-based manufacture.