MYXOCHELIN-A, A NEW IRON-CHELATING COMPOUND FROM ANGIOCOCCUS-DISCIFORMIS (MYXOBACTERALES) - PRODUCTION, ISOLATION, PHYSICOCHEMICAL AND BIOLOGICAL PROPERTIES

Myxochelin A, a new catechole siderophore, was isolated from the culture broth of the myxobacterium, Angiococcus disciformis strain An d30. As is the case with other iron-chelating compounds the production of myxochelin A could be markedly increased up to 44 mg/liter by fermentation at low iron concentrations (10(-7) M FeCl3). The new substance showed weak activity against some bacteria.