... forprotection against damping off: (i) zwittermycin A, a linear aminopolyol and (ii)antibiotic B, an aminoglycoside antibiotic containing a disaccharide. Zwitter-mycin A inhibits elongation of ... phaseolotoxin, rhizobitoxine,syringomycin, syringotoxin,syringostatin, tropolone, and fireblight toxin) showtypical antibiotic activity against other microorganisms and are thus both anti-biotics ... and in unsterilized fruits [44].A further indication of natu-ral antibiotic production is the possession of antibiotic-resistance plasmids bymost soil bacteria [45].Nutrient limitation is the...