AUTHOR=Leitão Ana Lúcia , Enguita Francisco J. TITLE=Editorial: Secondary Metabolism. An Unlimited Foundation for Synthetic Biology JOURNAL=Frontiers in Microbiology VOLUME=6 YEAR=2016 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2015.01562 DOI=10.3389/fmicb.2015.01562 ISSN=1664-302X