Physiological Studies on Pea Tendrils. V. Membrane Changes and Water Movement Associated with Contact Coiling

Abstract

The coiling of excised pea tendrils in response to mechanical stimulation is accompanied by an increased efflux from their cut bases of electrolytes and label from previously absorbed ¹⁴C-acetate and ¹⁴C-sucrose. The major excreted cation is H⁺; H⁺ loss is potentiated by pretreatment with benzoic acid, which also leaves the tendrils during coiling.