Auxin transport is sufficient to generate a maximum and gradient guiding root growth.

Auxin transport is sufficient to generate a maximum and gradient guiding root growth. Research Abstract Details 

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Auxin transport is sufficient to generate a maximum and gradient guiding root growth. Abstract Text:

Bruce Veit,

The plant growth regulator auxin controls cell identity, cell division and cell expansion. Auxin efflux facilitators (PINs) are associated with auxin maxima in distal regions of both shoots and roots. Here we model diffusion and PIN-facilitated auxin transport in and across cells within a structured root layout. In our model, the stable accumulation of auxin in a distal maximum emerges from the auxin flux pattern. We have experimentally tested model predictions of robustness and self-organization. Our model explains pattern formation and morphogenesis at timescales from seconds to weeks, and can be understood by conceptualizing the root as an 'auxin capacitor'. A robust auxin gradient associated with the maximum, in combination with separable roles of auxin in cell division and cell expansion, is able to explain the formation, maintenance and growth of sharply bounded meristematic and elongation zones. Directional permeability and diffusion can fully account for stable auxin maxima and gradients that can instruct morphogenesis.

Auxin transport is sufficient to generate a maximum and gradient guiding root growth. Publishing Authors By Initials

B Veit,

For similar plants: plant components: plant roots research abstracts see: plants: plant components: plant roots research

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Auxin transport is sufficient to generate a maximum and gradient guiding root growth. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Nature

VOLUME: 449

Page Numbers: 1008-13

Journal Abbreviation: Nature

ISSN: 1476-4687

DAY: 25

MONTH: Oct

YEAR: 2007

Auxin transport is sufficient to generate a maximum and gradient guiding root growth. Information

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LANGUAGE: eng

NlmUniqueID: 410462

Auxin transport is sufficient to generate a maximum and gradient guiding root growth. Keywords Mesh Terms:

KEYWORDS: Plant Roots

MESH TERMS: metabolism

Chemical & Substance for Abstract: Auxin transport is sufficient to generate a maximum and gradient guiding root growth. Information

Substance Name: Indoleacetic Acids

Registry Number: 0

Grant and Affiliation Information for Auxin transport is sufficient to generate a maximum and gradient guiding root growth.

AFFILIATION: Theoretical Biology and Bioinformatics, Department of Biology, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands.

Country: England

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MEDLINETA: Nature

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