منابع مشابه
Root patterning: SHORT ROOT on the move
The radial pattern of the plant root is determined by the action of two transcription factors, SHORT ROOT and SCARECROW, which are produced in different cell types. The SHORT ROOT protein has now been shown to move from cell to cell, regulating transcription of the downstream SCARECROW gene in the target cells.
متن کاملPlant nutrition: root transporters on the move.
Nutrient and water uptake from the soil is essential for plant growth and development. In the root, absorption and radial transport of nutrients and water toward the vascular tissues is achieved by a battery of specialized transporters and channels. Modulating the amount and the localization of these membrane transport proteins appears as a way to drive their activity and is essential to mainta...
متن کاملThe SHORT-ROOT Gene Controls Radial Patterning of the Arabidopsis Root through Radial Signaling
Asymmetric cell divisions play an important role in the establishment and propagation of the cellular pattern of plant tissues. The SHORT-ROOT (SHR) gene is required for the asymmetric cell division responsible for formation of ground tissue (endodermis and cortex) as well as specification of endodermis in the Arabidopsis root. We show that SHR encodes a putative transcription factor with homol...
متن کاملRoot System Patterning: Auxin Synthesis at the Root Periphery
Plasticity in plant form is achieved through differential elaboration of developmental pre-patterns during postembryonic organ development. A new report links the output of the root clock, an oscillatory transcriptional pre-patterning mechanism, with cell-type-specific production of the plant hormone auxin, and identifies a downstream component required for elaboration of the pre-pattern.
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ژورنال
عنوان ژورنال: Current Biology
سال: 2001
ISSN: 0960-9822
DOI: 10.1016/s0960-9822(01)00580-2