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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Histological analysis of direct somatic embryogenesis of Arabidopsis thaliana (L.) Heynh.
Ewa Kurczyńska,A. Ujczak,Gaj +2 more
TL;DR: In this paper, the distribution of auxin to mark embryogenic cells in cultured explants and develop somatic embryos was analyzed in Arabidopsis lines expressing the GUS reporter gene, driven by the DR5 and LEC2 promoters.
Book ChapterDOI
Stress and Somaclonal Variation
A. M. Vázquez,Rosario Linacero +1 more
TL;DR: Stress in plants has been defined as any change under growth conditions which disrupt metabolic homeostasis, requiring an adjustment of metabolic pathways in a process usually referred to as acclimation, and induced responses work at different levels according to the nature and duration of stress conditions.
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Dynamic TMT-Based Quantitative Proteomics Analysis of Critical Initiation Process of Totipotency during Cotton Somatic Embryogenesis Transdifferentiation.
TL;DR: Systematic analysis indicated that peroxidase, photosynthesis, environment stresses response processes, nitrogen metabolism, phytohormone response/signal transduction, transcription/posttranscription and modification were involved in somatic embryogenesis.
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Effect of plant growth regulators and antioxidants on in vitro plant regeneration and callus induction from leaf explants of purple passion fruit (Passiflora edulis Sims)
Journal ArticleDOI
Somatic embryogenesis and de novo shoot organogenesis can be alternatively induced by reactivating pericycle cells in Lisianthus ( Eustoma grandiflorum (Raf.) Shinners) root explants
Maria Yumbla-Orbes,Ana Claudia Ferreira da Cruz,Marcos Vinícius Marques Pinheiro,Diego Ismael Rocha,Diego Silva Batista,Andréa Dias Koehler,José Geraldo Barbosa,Wagner Campos Otoni +7 more
TL;DR: This study demonstrated that somatic embryogenesis and de novo shoot organogenesis-based systems of root-derived Lisianthus (Eustoma grandiflorum) explants can be alternatively induced by exogenous supply of auxin or cytokinin.
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