What is claimed is:
1. A transformant comprising from 3 to 5 copies of a lactate dehydrogenase gene derived from human and introduced into a Schizosaccharomyces pombe host, wherein a gene that is a part of a group of genes encoding pyruvate decarboxylase of the Schizosaccharomyces pombe host is deleted or inactivated.
The present invention relates to a transformant and its production process, and a method for producing lactic acid. Specifically, a transformant containing a lactate dehydrogenase gene (a gene encoding lactate dehydrogenase (LDH), and hereinafter also referred to as LDH gene) introduced into Schizosaccharomyces pombe (hereinafter also referred to as S....