Tempranillo blanco Tempranillo blanco Tempranillo blanco is a white Spanish wine grape variety that is grown in the Rioja "Denominación de Origen" (DOC). It is a mutation of the red Tempranillo grape variety that is planted in Rioja. The white grape variety was discovered in a Tempranillo vineyard in the Rioja region by a wine grower in the late 20th century. In 2007, the "Consejo Regulador" of Rioja officially sanctioned the use of Tempranillo blanco in the DOC wines of Rioja. Tempranillo blanco was discovered in 1988 by a wine grower in a Tempranillo vineyard near Murillo de Río Leza in the
Petite mutation be induced using a variety of mutagens, including DNA intercalating agents, as well as chemicals that can interfere with DNA synthesis in growing cells. Mutagens that create Petites are implicated in increased rates of degenerative diseases and in the aging process. A mutation that produces small (petite" > petite) anaerobic-like colonies had shown first in Yeast Saccharomyces cerevisiae and described by Boris Ephrussi and his co-workers in 1949 in Gif-sur-Yvette, France. The cells of petite colonies were smaller than those of wild-type colonies, but the term “petite” refers only to colony size and not the individual cell size. Over 50