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In-vitro auxin transport in membrane vesicles from maize coleoptiles

✍ Scribed by Angelika Heyn; Susanne Hoffmann; Rainer Hertel

Publisher
Springer-Verlag
Year
1987
Tongue
English
Weight
271 KB
Volume
172
Category
Article
ISSN
0032-0935

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✦ Synopsis

When membrane vesicles from maize (Zea mays L.) coleoptiles are extracted at high buffer strength, a pH-driven, saturable association of [i4c] indole-3-acetic acid is found, similar to the in-vitro auxin-transport system previously described for Cucurbita hypocotyls. The phytotropins naphthylphthalamic acid and pyrenoylbenzoic acid increase net uptake, presumably by inhibiting the auxin-efflux carrier.

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Uridine transport in basolateral plasma
Uridine transport in basolateral plasma membrane vesicles from rat liver
✍ Bonaventura Ruiz-Montasell; F. Javier Casado; Antonio Felipe; MarΓ§al Pastor-Angl πŸ“‚ Article πŸ“… 1992 πŸ› Springer 🌐 English βš– 686 KB

The characteristics of uridine transport were studied in basolateral plasma membrane vesicles isolated from rat liver. Uridine was not metabolized under transport measurements conditions and was taken up into an osmotically active space with no significant binding of uridine to the membrane vesicles