ANTIBIOTICS FROM GLIDING BACTERIA .46. NANNOCHELIN-A, NANNOCHELIN-B AND NANNOCHELIN-C, NEW IRON-CHELATING COMPOUNDS FROM NANNOCYSTIS-EXEDENS (MYXOBACTERIA) PRODUCTION, ISOLATION, PHYSICOCHEMICAL AND BIOLOGICAL PROPERTIES
Novel citrate-hydroxamate siderophores, named nannochelins A, B and C, were isolated from the culture broth of the myxobacterium Nannocystis exedens strain Na e485. The new substances showed weak growth-inhibitory activity against some bacteria and fungi.