TY - JOUR
T1 - Genetic and fermentation properties of the K2 killer yeast, Saccharomyces cerevisiae T206
AU - Franken, D. B.
AU - Ariatti, M.
AU - Pretorius, I. S.
AU - Gupthar, A. S.
PY - 1998
Y1 - 1998
N2 - Saccharomyces cerevisiae T206 K+R+, a K2 killer yeast, was differentiated from other NCYC killer strains of S. cerevisiae on the basis of CHEF-karyotyping and mycoviral RNA separations. Genomic DNA of strain T206 was resolved into 13 chromosome bands, ranging from approximately 0.2 to 2.2 Mb. The resident virus in strain T206 yielded L and M RNA species of approximately 5.1 kb and 2.0 kb, respectively. In micro-scale vinifications, strain T206 showed a lethal effect on a K-R- mesophilic wine yeast. Metabolite accumulation and toxin activity were measured over a narrow pH range of 3.2 to 3.5. Contrary to known fermentation trends, the challenged fermentations were neither stuck nor protracted although over 70% of the cell population was killed. Toxin-sensitive cells showed cytosolic efflux.
AB - Saccharomyces cerevisiae T206 K+R+, a K2 killer yeast, was differentiated from other NCYC killer strains of S. cerevisiae on the basis of CHEF-karyotyping and mycoviral RNA separations. Genomic DNA of strain T206 was resolved into 13 chromosome bands, ranging from approximately 0.2 to 2.2 Mb. The resident virus in strain T206 yielded L and M RNA species of approximately 5.1 kb and 2.0 kb, respectively. In micro-scale vinifications, strain T206 showed a lethal effect on a K-R- mesophilic wine yeast. Metabolite accumulation and toxin activity were measured over a narrow pH range of 3.2 to 3.5. Contrary to known fermentation trends, the challenged fermentations were neither stuck nor protracted although over 70% of the cell population was killed. Toxin-sensitive cells showed cytosolic efflux.
UR - http://www.scopus.com/inward/record.url?scp=0031683414&partnerID=8YFLogxK
U2 - 10.1023/A:1001190125846
DO - 10.1023/A:1001190125846
M3 - Article
C2 - 9801771
AN - SCOPUS:0031683414
SN - 0003-6072
VL - 73
SP - 263
EP - 269
JO - Antonie van Leeuwenhoek, International Journal of General and Molecular Microbiology
JF - Antonie van Leeuwenhoek, International Journal of General and Molecular Microbiology
IS - 3
ER -