(R)-2-hydroxy-(9Z,12Z,15Z)-octadecatrienoate + A + H2O => (R)-2-hydroperoxy-(9Z,12Z,15Z)-octadecatrienoate + AH2
(r)-2-hydroxy-(9z,12z,15z)-octadecatrienoate + a + h2o => (r)-2-hydroperoxy-(9z,12z,15z)-octadecatrienoate + ah2