Some characteristics of aerial and sub-merged spores of kitasatosporia setalba

Abstract

Kitasatosporia setalba KM-6054 forms two kinds of spores: aerial spores on an agar medium and submerged spores in a liquid medium. In this study, both kinds of spores were resistant to sonication, but sensitive to lysozyme digestion and moist heat. LL-2,6-Diaminopimelic acid (A2pm), alanine, glutamic acid and glycine were detected as the main constituents in the cell walls of the aerial and submerged spores. The respective molar ratios were similar; 1.0: 1.6: 0.5: 1.0 and 1.0: 1.5: 0.7: 0.8. On the other hand, the vegetative mycelium on agar media and the filamentous mycelium in submerged cultures were sensitive to sonication and differed from the two kinds of spores in both amino acid composition and A2pm type. © 1984, Applied Microbiology, Molecular and Cellular Biosciences Research Foundation. All rights reserved.