PLETHORA proteins as dose-dependent master regulators of Arabidopsis root development

Article Abstract:

Two PLETHORA genes encoding AP2-domain transcription factors maintain the activity of stem cells in Arabidopsis thaliana root. At least, a clade of four PLETHORA homologues is required for root formation.

Analysis, Physiological aspects, Genetic aspects, In situ hybridization, Polymerase chain reaction, Arabidopsis thaliana, Plant proteins

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The force from without

Article Abstract:

Experiments have revealed that growth promoting hormone brassinosteroids can promote growth only through epidermal layer, which controls growth in inner tissues and hence total growth of the plant.

United States, Pesticide and Other Agricultural Chemical Manufacturing, Plant Growth Regulators, Plant cells and tissues, Plant cells, Plant hormones, Epidermis

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

Article Abstract:

The design of a diffusion and PIN-facilitated auxin transport in a structured root layout model which explains pattern formation and morphogenesis of plant root is demonstrated.

Roots (Botany), Auxin, Auxins, Cell culture, Plant morphogenesis

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