西北农林科技大学葡萄酒学院
西北农林科技大学葡萄酒学院-
F-20-7是西北农林科技大学葡萄酒学院2003年获得的以葡萄酒酵母（saccharomycescerevisiae）1450和酒酒球菌（Oenococcusoeni）SD-2a为亲本的跨界融合子。
F-20-7 is the inter-kingdom fusant of wine yeast 1450 ( Saccharomyces cerevisiae ) and SD-2a ( Oenococcus oeni ), which was obtained by College of Enology in 2003 . Because the key enzyme genes are on the plasmid , so the ability of degrading malic acid is not stable .