LIGNOCELLULOSE-DEGRADANT-RESISTANT MICROORGANISM AND METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING BIOETHANOL USING SAID MICROORGANISM

摘要

Provided is a microorganism having resistance to a lignocellulose degradant which is a factor that inhibits the fermentation of wood. One embodiment of the present invention is a lignocellulose-degradant-resistant microorganism expressing a higher level of a gene that encodes protein (1) or (2) than does the wild type. A gene that encodes a protein represented by SEQ ID NO: 1 among these genes is a SUMO gene known as an SMT3 gene in yeast. (1) At least one protein selected from the group comprising proteins that comprise amino acid sequences represented by SEQ ID NOS: 1-4; (2) at least one protein selected from the group comprising proteins that comprise amino acid sequences in which one or several amino acids in the amino acid sequences represented by SEQ ID NOS: 1-4 have been deleted, substituted, or added, the amino acid sequences being modified within the range of 80% or higher identity with the amino acid sequence of the corresponding SEQ ID NO., and that have a function for imparting lignocellulose-degradant resistance to microorganisms.