Cloning and characterization of a theta class glutathione transferase from the potato pathogen Phytophthora infestans

Potato plants produce the 9(S)-hydroperoxide of linolenic acid (9(S)-HPOT) as a precursor of fungitoxic oxylipins. A constitutively expressed glutathione transferase from the potato pathogen Phytophthora infestans can reduce 9(S)-HPOT to the non-toxic mono-hydroxyalcohol 9(S)-HOT.