ArticlePlant cell reports2008
Arabinogalactan-protein epitope Gal4 is differentially regulated and localized in cell lines of hybrid fir (Abies alba x Abies cephalonica) with different embryogenic and regeneration potential.
Article in Plant cell reports, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 36 citations in OpenAlex.
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- Secretome analysis revealed that cell wall remodeling and starch catabolism underlie the early stages of somatic embryogenesis inFrontiers in plant science · 2023Article
- Androgenesis-Based Doubled Haploidy: Past, Present, and Future Perspectives.Frontiers in plant science · 2021Review
- Extracellular matrix and wall composition are diverse in the organogenic and non-organogenic calli of Actinidia arguta.Plant cell reports · 2020Article
- Molecular Dissection of the Regenerative Capacity of Forest Tree Species: Special Focus on Conifers.Frontiers in plant science · 2018Review
- Spatial Distribution of Selected Chemical Cell Wall Components in the Embryogenic Callus of Brachypodium distachyon.PloS one · 2016Article
- Variable content and distribution of arabinogalactan proteins in banana (Musa spp.) under low temperature stress.Frontiers in plant science · 2015Article
- A chimeric arabinogalactan protein promotes somatic embryogenesis in cotton cell culture.Plant physiology · 2012Article
- Pretreatments, conditioned medium and co-culture increase the incidence of somatic embryogenesis of different Cichorium species.Plant signaling & behavior · 2012Article
- Ultrastructure and histochemical analysis of extracellular matrix surface network in kiwifruit endosperm-derived callus culture.Plant cell reports · 2008Article
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Arabinogalactan proteins (AGPs) are important proteoglycans regulating somatic embryogenesis in diverse plant species. Embryogenic cells of somatic embryos are covered by special extracellular cell wall layer called extracellular surface matrix network (ECMSN) at their early developmental stages. Here we show that highly embryogenic cell line AC78 of hybrid fir (Abies alba x Abies cephalonica) differs from very low-embryogenic cell line AC77 in the abundance, subcellular localization and deposition of subset of secreted AGPs. A specific AGP epitope containing Gal residues and reacting to Gal4 antibody is secreted and deposited into ECMSN, which covers the surface of the embryogenic cells showing high embryogenic and regeneration capacity in the cell line AC78. On the other hand, this Gal4 AGP epitope was not secreted and/or found on the surface of meristematic cells showing low embryogenic and regeneration capacity in the cell line AC77, as well as on the surface of non-embryogenic suspensor cells and callus cells in both cell lines AC77 and AC78. As a positive control, we have used another AGP epitope LM2 (containing glucuronic acid) showing no significant differences in these two Abies hybrid lines. This study defines specific AGPs containing beta-(1-->6)-galactotetraosyl group as a first molecular component of ECMSN covering embryogenic cells in gymnosperms.
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