Acknowledgements
This research was supported by National Natural Science
Foundation of China (Nos. 31000811/C200207) and the Scientific
Research Foundation for the Returned Overseas Chinese Scholars
(20101561). We also thank Dr. Rene Verwaal in the Netherlands and
professor Marcel·li del Olmo Mu˜noz in Spain for kindly providing the vector YIplac211 and wine yeast T73-4 used in the experiment,
respectively