Mathematical Model of Polar Auxin Transport
نویسندگان
چکیده
منابع مشابه
Kinetics of polar auxin transport.
The movement of auxin in the basipetal and acropetal directions is compared for 4 types of tissue. It is observed that the transport may proceed in either a linear or a non-linear manner with time. The polarity of transport through any given type of tissue increases exponentially with increasing lengths of tissue traversed, suggesting that the polarity of transport is developed as a consequence...
متن کاملPolar auxin transport. New support for an old model
INSIGHT In 1880, Charles Darwin noted that " some influence, " later shown to be in-dole-3-acetic acid (IAA), moves from the tip of an oat coleoptile to the region below the tip, where it controls elongation (Darwin, 1880). Darwin's statement was probably the first description of polar auxin transport, a phenomenon that has received considerable attention in the ensuing decades for two main rea...
متن کاملInhibition of polar auxin transport by ethylene.
Applied ethylene influences the growth of etiolated pea stem sections cut from untreated plants, but has no effect on (14)C-indoleacetic acid uptake, polar transport or destruction. However, the capacity of the polar auxin transport system is markedly reduced in sections cut from plants grown in ethylene, while the velocity of auxin transport is unchanged under these conditions. Inhibition of t...
متن کاملPolar Auxin Transport: Cell Polarity to Patterning
Auxin is a signaling molecule with profound influence on plant morphogenesis. Because of its activity gradient-related effects on plant development and response programs, it is considered as a plant morphogen. Auxin displays a spectacular ability to mobilize in a cell-to-cell and polar fashion. Auxin efflux carrier PIN proteins direct this intercellular flow of auxin and thus bear a ratelimitin...
متن کاملPolar auxin transport: models and mechanisms.
Spatial patterns of the hormone auxin are important drivers of plant development. The observed feedback between the active, directed transport that generates auxin patterns and the auxin distribution that influences transport orientation has rendered this a popular subject for modelling studies. Here we propose a new mathematical framework for the analysis of polar auxin transport and present a...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1966
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.41.9.1476