Physiology of spores of mycobacillin producer and non-producer mutants ofBacillus subtilis

Spores of mycobacillin producer and non-producer mutants ofBacillus subtilis of identical genetic background have been studied with reference to germinating capacity, inhibition of germination, heat resistance and ion-exchange properties. The spores are not physiologically equivalent.     

Absorption,Translocation and Adhering Capacities of Mycobacillin and Versicolin in Rice Plant Tissue

Mycobacillin adheres to the surface of seed or seedling but is not absorbed by rice plant tissue, whereas versicolin not only adheres to the surface but is also absorbed and subsequently translocated. The antibiotic re-extracted from the versicolin-treated plant tissue inhibits the growth of Helminthosporium oryzae. Thus mycobacillin is active only topically, while versicolin both topically and systemically.