Ethylene enhances gibberellin levels and petiole sensitivity in flooding-tolerant Rumex palustris but not in flooding-intolerant R. acetosa. - Rijinders, ,J..G. H. M.,.; Young-Yell, ,Y.,.; Kamiya, ,Y.,.; Takahashi, ,N.,.; Barendse, ,G..W. M.,.; Bolm, ,C..W. P. M.,.; and Voesenek, ,L..A. C. J.. (Planta, 1997)