| Literature DB >> 10514379 |
T Steinmann1, N Geldner, M Grebe, S Mangold, C L Jackson, S Paris, L Gälweiler, K Palme, G Jürgens.
Abstract
The plant hormone auxin is transported in a polar manner along the shoot-root axis, which requires efflux carriers such as PIN1. Asymmetric localization of PIN1 develops from a random distribution in Arabidopsis early embryogenesis. Coordinated polar localization of PIN1 is defective in gnom embryos. GNOM is a membrane-associated guanine-nucleotide exchange factor on ADP-ribosylation factor G protein (ARF GEF). Thus, GNOM-dependent vesicle trafficking may establish cell polarity, resulting in polar auxin transport.Entities:
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Year: 1999 PMID： 10514379 DOI： 10.1126/science.286.5438.316
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728