“ N-Acetyl-d-glucosamine induced the production of 3-formylindole (11) and guaymasol (12) in Micromonospora sp. RV43, the siderophore bacillibactin 16, and surfactin antibiotic 17 in Rhodococcus sp. RV157 and increased the production of minor metabolites actinosporins E-H (21-24) in Actinokineospora sp. EG49.”