Cuticular penetration of abscisic acid

✍ Scribed by Amos Blumenfeld; Martin J. Bukovac

• Book ID: 104756539
• Publisher: Springer-Verlag
• Year: 1972
• Tongue: English
• Weight: 384 KB
• Volume: 107
• Category: Article
• ISSN: 0032-0935
• DOI: 10.1007/bf00397942

✦ Synopsis

Penetration of 2-14C abscisic acid (ABA) through enzymatically isolated cuticles from tomato fruit and from the upper epidermis of apricot, pear and orange leaves was assessed. Penetration was linear with time, greater as the undissociated than the dissociated ion, and greater through dewaxed than nondewaxed cuticles. Significantly less (3-6 times) (2-14C)ABA penetrated the tomato fruit cuticle than NAA or 2,4-D. The leaf cuticles were less permeable than the tomato fruit cuticle. There was no evidence that the ABA was altered during transfer across the cuticle.