MYCOCINOGENY IN <i>HANSENIASPORA </i>SPECIES
Five mycocinogenic and nine sensitive strains were found in <i>Hanseniaspora guiliermondii, H. occidentalis, H. osmophila, H. uvarum</i> and <i>H. vineae</i>. The other 24 strains of these species, together with <i>H. valbyensis</i> and <i>Kloeckera lindneri</i>, have neutral phenotype. The optimum pH for killer activities was 4.5 in the presence of glycerol or NaCl into medium. Action spectra of all five mycocins were identical, they were restricted to some strains and species of 13 ascomycetous genera. Mycocinogenic strains differ from sensitive and neutral ones by some physiological characteristics.