A relationship between seed development, Arabinogalactan-proteins (AGPs) and the AGP mediated promotion of somatic embryogenesis

2002 ◽  
Vol 114 (4) ◽  
pp. 637-644 ◽  
Author(s):  
Arjon J. Van Hengel ◽  
Ab Van Kammen ◽  
Sacco C. De Vries
Keyword(s):  
Somatic Embryogenesis ◽  
Seed Development ◽  
Arabinogalactan Proteins

scholarly journals Somatic Embryogenesis in Centaurium erythraea Rafn—Current Status and Perspectives: A Review

Plants ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 70
Author(s):  
Ana D. Simonović ◽  
Milana M. Trifunović-Momčilov ◽  
Biljana K. Filipović ◽  
Marija P. Marković ◽  
Milica D. Bogdanović ◽  
...  
Keyword(s):  
Somatic Embryogenesis ◽  
Somatic Embryos ◽  
Developmental Plasticity ◽  
Leaf Explants ◽  
Arabinogalactan Proteins ◽  
Culture Conditions ◽  
Current Status ◽  
Special Focus ◽  
Root Explants ◽  
Centaurium Erythraea

Centaurium erythraea (centaury) is a traditionally used medicinal plant, with a spectrum of secondary metabolites with confirmed healing properties. Centaury is an emerging model in plant developmental biology due to its vigorous regenerative potential and great developmental plasticity when cultured in vitro. Hereby, we review nearly two decades of research on somatic embryogenesis (SE) in centaury. During SE, somatic cells are induced by suitable culture conditions to express their totipotency, acquire embryogenic characteristics, and eventually give rise to somatic embryos. When SE is initiated from centaury root explants, the process occurs spontaneously (on hormone-free medium), directly (without the callusing phase), and the somatic embryos are of unicellular origin. SE from leaf explants has to be induced by plant growth regulators and is indirect (preceded by callusing). Histological observations and culture conditions are compared in these two systems. The changes in antioxidative enzymes were followed during SE from the leaf explants. Special focus is given to the role of arabinogalactan proteins during SE, which were analyzed using a variety of approaches. The newest and preliminary results, including centaury transcriptome, novel potential SE markers, and novel types of arabinogalactan proteins, are discussed as perspectives of centaury research.

scholarly journals Cell Wall Composition as a Marker of the Reprogramming of the Cell Fate on the Example of a Daucus carota (L.) Hypocotyl in Which Somatic Embryogenesis Was Induced

2020 ◽  
Vol 21 (21) ◽  
pp. 8126
Author(s):  
Michał Kuczak ◽  
Ewa Kurczyńska
Keyword(s):  
Somatic Embryogenesis ◽  
Cell Fate ◽  
Cell Walls ◽  
Arabinogalactan Proteins ◽  
Cell Wall Composition ◽  
Cell Reprogramming ◽  
Daucus Carota L ◽  
Negative Marker ◽  
Spatio Temporal ◽  
Wall Components

Changes in the composition of the cell walls are postulated to accompany changes in the cell’s fate. We check whether there is a relationship between the presence of selected pectic, arabinogalactan proteins (AGPs), and extensins epitopes and changes in cell reprogramming in order to answer the question of whether they can be markers accompanying changes of cell fate. Selected antibodies were used for spatio-temporal immunolocalization of wall components during the induction of somatic embryogenesis. Based on the obtained results, it can be concluded that (1) the LM6 (pectic), LM2 (AGPs) epitopes are positive markers, but the LM5, LM19 (pectic), JIM8, JIM13 (AGPs) epitopes are negative markers of cells reprogramming to the meristematic/pluripotent state; (2) the LM8 (pectic), JIM8, JIM13, LM2 (AGPs) and JIM11 (extensin) epitopes are positive markers, but LM6 (pectic) epitope is negative marker of cells undergoing detachment; (3) JIM4 (AGPs) is a positive marker, but LM5 (pectic), JIM8, JIM13, LM2 (AGPs) are negative markers for pericycle cells on the xylem pole; (4) LM19, LM20 (pectic), JIM13, LM2 (AGPs) are constitutive wall components, but LM6, LM8 (pectic), JIM4, JIM8, JIM16 (AGPs), JIM11, JIM12 and JIM20 (extensins) are not constitutive wall components; (5) the extensins do not contribute to the cell reprogramming.

scholarly journals Protein expression during seed development in Araucaria angustifolia: transient accumulation of class IV chitinases and arabinogalactan proteins

2006 ◽  
Vol 127 (1) ◽  
pp. 138-148 ◽  
Author(s):  
Andre Luis Wendt dos Santos ◽  
Nicola Wietholter ◽  
Nour Eddine El Gueddari ◽  
Bruno Maria Moerschbacher
Keyword(s):  
Protein Expression ◽  
Seed Development ◽  
Arabinogalactan Proteins ◽  
Araucaria Angustifolia ◽  
Class Iv

scholarly journals N-Acetylglucosamine and Glucosamine-Containing Arabinogalactan Proteins Control Somatic Embryogenesis

2001 ◽  
Vol 125 (4) ◽  
pp. 1880-1890 ◽  
Author(s):  
Arjon J. van Hengel ◽  
Zewdie Tadesse ◽  
Peter Immerzeel ◽  
Henk Schols ◽  
Ab van Kammen ◽  
...  
Keyword(s):  
Somatic Embryogenesis ◽  
Arabinogalactan Proteins

Arabinogalactan-proteins stimulate somatic embryogenesis and plant propagation of Pelargonium sidoides

2016 ◽  
Vol 152 ◽  
pp. 149-155 ◽  
Author(s):  
Stefanie Duchow ◽  
Renate I. Dahlke ◽  
Thomas Geske ◽  
Wolfgang Blaschek ◽  
Birgit Classen
Keyword(s):  
Somatic Embryogenesis ◽  
Arabinogalactan Proteins ◽  
Plant Propagation ◽  
Pelargonium Sidoides
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