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FACKEL is a sterol C-14 reductase required for organized cell division and expansion in Arabidopsis embryogenesis

Article Abstract:

FACKEL (FK) is a sterol C-14 reductase found to be necessary for organized cell division and expansion in embryogenesis in Arabidopsis. FK has been isolated by positional cloning. Using expression analysis it was found that FK mRNA becomes localized to meristem zones. Synthesis of sterol signals is vital, along with addition of brassinosteroids (BRs), in mediation of regulated cell growth and organization in embryonic development.

Author: Jurgens, Gerd, Schrick, Kathrin, Mayer, UIrike, Horrichs, Andrea, Kuhnt, Christine, Bellini, Catherine, Dangl, Jeff, Schmidt, Jurgen
Publisher: Cold Spring Harbor Laboratory Press
Publication Name: Genes & Development
Subject: Biological sciences
ISSN: 0890-9369
Year: 2000
Research, Botany, Cell division, Plant cytomorphogenesis, Sterols, Plant embryology

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Local, efflux-dependent auxin gradients as a common module for plant organ formation

Article Abstract:

Research shows that during organ biogenesis in Arabidopsis, auxin dynamic gradients with maxima at the primordia tips. Results indicate that PIN-dependent, local auxin gradients lead to formation of all diverse plant organs with respect to their morphology and developmental origin.

Author: Jurgens, Gerd, Frimi, Jiri, Benkova, Eva, Michniewicz, Marta, Sauer, Michael, Teichmann, Thomas, Seifertova, Daniela
Publisher: Elsevier B.V.
Publication Name: Cell
Subject: Biological sciences
ISSN: 0092-8674
Year: 2003
Czech Republic, Influence, Evolution (Biology), Evolution

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The Arabidopsis GNOM ARF-GEF mediates endosomal recycling, auxin transport, and auxin-dependent plant growth

Article Abstract:

Research has been conducted on Arabidopsis protein GNOM, a brefeldin A sensitive ARF-GEF. Results demonstrate that GNOM is required for auxin transport component recycling and that ARF-GEFs regulate endosomal trafficking pathways.

Author: Jurgens, Gerd, Geldner, Niko, Anders, Nadine, Wolters, Hanno, Keicher, Jutta, Kornberger, Wolfgang, Muller, Philippe, Delbarre, Alaine, Ueda, Takashi, Nakano, Akihiko
Publisher: Elsevier B.V.
Publication Name: Cell
Subject: Biological sciences
ISSN: 0092-8674
Year: 2003
Japan, Genetic aspects, Genetic regulation, Cell research, Cytological research, Growth (Plants), Plant growth, Guanosine triphosphatase

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Subjects list: Germany, France, Physiological aspects, Plants, Plant hormones, Arabidopsis, Plant development, Analysis, Auxin, Auxins
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