AUTHOR=Singh Bhim Pratap , Rateb Mostafa E. , Rodriguez-Couto Susana , Polizeli Maria de Lourdes Teixeira de Moraes , Li Wen-Jun TITLE=Editorial: Microbial Secondary Metabolites: Recent Developments and Technological Challenges JOURNAL=Frontiers in Microbiology VOLUME=10 YEAR=2019 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2019.00914 DOI=10.3389/fmicb.2019.00914 ISSN=1664-302X