Auxin triggers transient, local signalling for cell specification in Arabidopsis embryogenesis.

D. Weijers; A. Schlereth; J.S. Ehrismann; G. Schwank; M. Kientz; G. Jürgens

doi:10.1016/j.devcel.2005.12.001

Auxin triggers transient, local signalling for cell specification in Arabidopsis embryogenesis.

D. Weijers, A. Schlereth, J.S. Ehrismann, G. Schwank, M. Kientz, G. Jürgens

Biochemistry

Research output: Contribution to journal › Article › Academic › peer-review

259 Citations (Scopus)

Abstract

The Arabidopsis embryonic root meristem is initiated by the specification of a single cell, the hypophysis. This event critically requires the antagonistic auxin response regulators MONOPTEROS and BODENLOS, but their mechanism of action is unknown. We show that these proteins interact and transiently act in a small subdomain of the proembryo adjacent to the future hypophysis. Here they promote transport of auxin, which then elicits a second response in the hypophysis itself. Our results suggest that hypophysis specification is not the direct result of a primary auxin response but rather depends on cell-to-cell signaling triggered by auxin In adjacent cells

Original language	English
Pages (from-to)	265-270
Journal	Developmental Cell
Volume	10
Issue number	2
DOIs	https://doi.org/10.1016/j.devcel.2005.12.001
Publication status	Published - 2006

Keywords

gene
monopteros
protein
embryo
expression
root
arf
transformation
movement
mutation

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title = "Auxin triggers transient, local signalling for cell specification in Arabidopsis embryogenesis.",

abstract = "The Arabidopsis embryonic root meristem is initiated by the specification of a single cell, the hypophysis. This event critically requires the antagonistic auxin response regulators MONOPTEROS and BODENLOS, but their mechanism of action is unknown. We show that these proteins interact and transiently act in a small subdomain of the proembryo adjacent to the future hypophysis. Here they promote transport of auxin, which then elicits a second response in the hypophysis itself. Our results suggest that hypophysis specification is not the direct result of a primary auxin response but rather depends on cell-to-cell signaling triggered by auxin In adjacent cells",

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AU - Weijers, D.

AU - Schlereth, A.

AU - Ehrismann, J.S.

AU - Schwank, G.

AU - Kientz, M.

AU - Jürgens, G.

PY - 2006

Y1 - 2006

N2 - The Arabidopsis embryonic root meristem is initiated by the specification of a single cell, the hypophysis. This event critically requires the antagonistic auxin response regulators MONOPTEROS and BODENLOS, but their mechanism of action is unknown. We show that these proteins interact and transiently act in a small subdomain of the proembryo adjacent to the future hypophysis. Here they promote transport of auxin, which then elicits a second response in the hypophysis itself. Our results suggest that hypophysis specification is not the direct result of a primary auxin response but rather depends on cell-to-cell signaling triggered by auxin In adjacent cells

AB - The Arabidopsis embryonic root meristem is initiated by the specification of a single cell, the hypophysis. This event critically requires the antagonistic auxin response regulators MONOPTEROS and BODENLOS, but their mechanism of action is unknown. We show that these proteins interact and transiently act in a small subdomain of the proembryo adjacent to the future hypophysis. Here they promote transport of auxin, which then elicits a second response in the hypophysis itself. Our results suggest that hypophysis specification is not the direct result of a primary auxin response but rather depends on cell-to-cell signaling triggered by auxin In adjacent cells

KW - gene

KW - monopteros

KW - protein

KW - embryo

KW - expression

KW - root

KW - arf

KW - transformation

KW - movement

KW - mutation

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DO - 10.1016/j.devcel.2005.12.001

M3 - Article

VL - 10

SP - 265

EP - 270

JO - Developmental Cell

JF - Developmental Cell

SN - 1534-5807

IS - 2

ER -

Auxin triggers transient, local signalling for cell specification in Arabidopsis embryogenesis.

Abstract

Keywords

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