title: Dependence of gibberellic acid-induced dark germination of lettuce seed on RNA synthesis.
abstract: Gibberellicacid-induced dark germination of Grand Rapids lettude seed was completely inhibited by 6-azauracil and partly by 2-thiouracil. Other inhibitors of nucleic acid and protein synthesis used were without effect. Inhibition of gibberellic acid-induced dark germination was reversed by uracil but not by thymine, deoxycytidine and orotic acid. The results suggest that gibberellic acid-induced dark germination is dependent on RNA synthesis and not on DNA synthesis.Gibberellic acid-induced lettuce hypocotyl growth was inhibited by all the inhibiters of nucleic acid and protein synthesis used, including actinomycin D, puromycin, chloramphenicol and p-fluorophenylalanine.
authors.affiliation: New York State Agricultural Experiment Station, Cornell University, 14456, Geneva, New York, USA.
authors.forename: A A
authors.initials: AA
authors.lastname: Khan