Abstract: According to the present invention, ethanol production is carried out with the use of cellulose or cellobiose as a starting material at low cost. The method of the present invention comprises the steps of culturing a microorganism that is classified as a species selected from the group consisting of Ogataea dorogensis, Ogataea pini, Ogataea glucozyma, Ogataea neopini, and Ogataea corticis in a medium containing cellobiose; and collecting ethanol from the medium.

Abstract: According to the present invention, ethanol production is carried out with the use of cellulose or cellobiose as a starting material at low cost. The method of the present invention comprises the steps of culturing a microorganism that is classified as a species selected from the group consisting of Ogataea dorogensis, Ogataea pini, Ogataea glucozyma, Ogataea neopini, and Ogataea corticis in a medium containing cellobiose; and collecting ethanol from the medium.

Abstract: Yeast for transformation is provided, which enables introduction of a greater number of copies of a target gene or a greater number of types of target genes. A method provided herein comprises the steps of introducing a target gene into yeast for transformation, which has homothallic properties and a plurality of selection markers, and selecting a strain in which the target gene has been introduced based on the selection markers in the yeast for transformation, whereby multiple target genes were introduced owing to the homothallic properties of the yeast for transformation.