NOVEL PROTOPORPHYRINOGEN OXIDASE TOLERANT TO LIGHT-REQUIRING HERBICIDES

摘要

A protoporphyrinogen oxidase tolerant to light-requiring herbicides and derivatives thereof, comprising a polypeptide having the amino acid sequence represented by SEQ ID NO:2 or mutated peptides derived therefrom by deletion, addition, substitution, etc. of one or more amino acids in the above amino acid sequence and having an activity substantially equivalent to that of the protoporphyrinogen oxidase. The acquisition of the novel protoporphyrinogen oxidase, which is highly tolerant to light-requiring herbicides and originates in plants, makes it possible to construct plants highly tolerant to light-requiring herbicides via the expression of this enzyme in host plants.