Auxin gradients trigger de novo formation of stem cells during somatic embryogenesis

Single or a group of somatic cells could give rise to the whole plant, which require hormones, or plant growth regulators. Although many studies have been done during past years, how hormones specify cell fate during in vitro organogenesis is still unknown. To uncover this mechanism, Arabidopsis som...

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Bibliographic Details
Published in:Plant signaling & behavior 2009-07, Vol.4 (7), p.574-576
Main Authors: Su, Ying Hua, Zhang, Xian Sheng
Format: Article
Language:English
Subjects:
Arabidopsis - embryology
Arabidopsis - genetics
Arabidopsis - metabolism
Arabidopsis Proteins - genetics
Arabidopsis Proteins - metabolism
Binding
Biology
Bioscience
Calcium
Cancer
Cell
Cycle
Gene Expression Regulation, Developmental
Gene Expression Regulation, Plant
Indoleacetic Acids - metabolism
Landes
Membrane Transport Proteins - genetics
Membrane Transport Proteins - metabolism
Mini Reviews
Organogenesis
Proteins
Stem Cells - cytology
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Summary:Single or a group of somatic cells could give rise to the whole plant, which require hormones, or plant growth regulators. Although many studies have been done during past years, how hormones specify cell fate during in vitro organogenesis is still unknown. To uncover this mechanism, Arabidopsis somatic embryogenesis has been recognized as a model for studying in vitro plant organogenesis. In this paper, we showed that establishment of auxin gradients within embryonic callus is essential for inducing stem cell formation via PIN1 regulation. This study sheds new light on how hormone regulates stem cell formation during in vitro organogenesis.
ISSN:1559-2316
1559-2324
1559-2324
DOI:10.4161/psb.4.7.8730