Journal ArticleDOI
Transition of somatic plant cells to an embryogenic state
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TLDR
This review summarizes relevant experimental observations that can contribute to the description and definition of a transitional state of somatic cells induced to form totipotent, embryogenic cells.Abstract:
Under appropriate in vivo or in vitro conditions, certain somatic plant cells have the capability to initiate embryogenic development (somatic embryogenesis). Somatic embryogenesis provides an unique experimental model to understand the molecular and cellular bases of developmental plasticity in plants. In the last few years, the application of modern experimental techniques, as well as the characterization of Arabidopsis embryogenesis mutants, have resulted in the accumulation of novel data about the acquisition of embryogenic capabilities by somatic plant cells. In this review, we summarize relevant experimental observations that can contribute to the description and definition of a transitional state of somatic cells induced to form totipotent, embryogenic cells. During this somatic-to-embryogenic transition, cells have to dedifferentiate, activate their cell division cycle and reorganize their physiology, metabolism and gene expression patterns. The roles of stress, endogenous growth regulators and chromatin remodelling in the coordinated reorganization of the cellular state are especially emphasized.read more
Citations
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Somatic embryogenesis and shoot organogenesis in the medicinal plant Pulsatilla koreana Nakai
TL;DR: A system for the in vitro regeneration of pasqueflowers (Pulsatilla koreana Nakai) based on somatic embryogenesis and shoot organogenesis was developed, and Globular and heart-shaped stages of somatic embryos were observed.
Journal ArticleDOI
Evolution of endogenous hormone concentration in embryogenic cultures of carrot during early expression of somatic embryogenesis.
TL;DR: Embryogenic callus and suspension cultures of carrot were transferred to medium with or without this plant growth regulator, to impair or induce, respectively, further development of somatic embryos, and high levels of the evaluated cytokinins generally coincided with low concentrations of the latter, indicating a shift from precursor to the active form, and vice versa.
Journal ArticleDOI
Somatic embryogenesis induction in leaves and petioles of a mature wild olive.
TL;DR: This is the first report of SE expression in explants without rejuvenation in Olea genus, and opens perspectives for using this strategy in SE protocols both for this wild genotype and for commercial genotypes.
Journal ArticleDOI
Symplasmic isolation marks cell fate changes during somatic embryogenesis
Kamila Godel-Jędrychowska,Katarzyna Kulinska-Lukaszek,Anneke Horstman,Anneke Horstman,Mercedes Soriano,Mengfan Li,Mengfan Li,Karol Małota,Kim Boutilier,Ewa Kurczyńska +9 more
TL;DR: The switch from somatic to totipotent growth is marked by the establishment of distinct embryogenic symplasmic domains and requires callose deposition at plasmodesmata.
Journal ArticleDOI
Agroecological impact of an in vitro biotechnology approach of embryo development and seed filling in legumes
TL;DR: This review will examine the relationships between embryogenesis, stress and its impact on in vitro development of novel genotypes more apt for a sustainable agriculture.
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