cr88The chlorate-resistant mutant cr88 is defective in photomorphogenesis, as shown by the phenotypes of long hypocotyls in red lht and yellow cotyledons under all lht conditions. AThe cr88 mutant of Arabidopsis is a novel chlorate-resistant mutant that displays long hypocotyls in red lht, but not in far red or blue lht, and is delayed in the greening