Plant stem cell niches
| Autor: | Thomas D. Friedrich, Noortje Kornet, Thomas Laux, Ernst Aichinger |
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| Rok vydání: | 2012 |
| Předmět: |
Pluripotent Stem Cells
Cell signaling Plant stem cell Transcription Genetic Physiology Cellular differentiation Cell Meristem Arabidopsis Plant Science Cell Communication Genes Plant Models Biological Plant Roots medicine Animals Regeneration Stem Cell Niche Induced pluripotent stem cell Molecular Biology biology Plant Stems Arabidopsis Proteins fungi food and beverages Cell Differentiation Cell Biology biology.organism_classification Cell biology Multicellular organism medicine.anatomical_structure Stem cell Plant Vascular Bundle Signal Transduction |
| Zdroj: | Annual review of plant biology. 63 |
| ISSN: | 1545-2123 |
| Popis: | Multicellular organisms possess pluripotent stem cells to form new organs, replenish the daily loss of cells, or regenerate organs after injury. Stem cells are maintained in specific environments, the stem cell niches, that provide signals to block differentiation. In plants, stem cell niches are situated in the shoot, root, and vascular meristems—self-perpetuating units of organ formation. Plants' lifelong activity—which, as in the case of trees, can extend over more than a thousand years—requires that a robust regulatory network keep the balance between pluripotent stem cells and differentiating descendants. In this review, we focus on current models in plant stem cell research elaborated during the past two decades, mainly in the model plant Arabidopsis thaliana. We address the roles of mobile signals on transcriptional modules involved in balancing cell fates. In addition, we discuss shared features of and differences between the distinct stem cell niches of Arabidopsis. |
| Databáze: | OpenAIRE |
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