Concannon Vineyard winery and of vineyards. Concannon Vineyard Concannon Vineyard is the second-largest winery in the Livermore Valley of California, producing around 30,000 cases annually. It is well known for its Petite Sirah and Concannon was the first winery to bottle this grape as a varietal wine in 1961. Prior to 1961, the petit syrah grape was produced worldwide as a blend wine. It also produces several other varieties of wine, including Chardonnay and Cabernet Sauvingnon. Concannon is owned by The Wine Group. Concannon was founded in 1883 by an Irish immigrant, James Concannon of Inishmore, County Galway. James imported a group
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