Brettanomyces: The anamorphic form of the yeast DEKKERA. It is implicated as a spoilage microorganism in wines.Dekkera: A genus of ascomycetous yeast in the family Saccharomycetaceae, order SACCHAROMYCETALES. It has been implicated in wine spoilage. Anamorphic forms are found in the genus BRETTANOMYCES.Wine: Fermented juice of fresh grapes or of other fruit or plant products used as a beverage.Ascomycota: A phylum of fungi which have cross-walls or septa in the mycelium. The perfect state is characterized by the formation of a saclike cell (ascus) containing ascospores. Most pathogenic fungi with a known perfect state belong to this phylum.DNA, Fungal: Deoxyribonucleic acid that makes up the genetic material of fungi.DNA, Ribosomal: DNA sequences encoding RIBOSOMAL RNA and the segments of DNA separating the individual ribosomal RNA genes, referred to as RIBOSOMAL SPACER DNA.