ArticleAnnals of botany2010
Immunolocalization indicates plasmodesmal trafficking of storage proteins during cambial reactivation in Populus nigra.
Article in Annals of botany, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 16 citations in OpenAlex.
- PcWRKY1 Represses Transcription of Yellow Stripe-Like 3 (PcYSL3) to Negatively Regulate Radial Cadmium Transport in Poplar Stems.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Seasonal dynamics of cell-to-cell transport in angiosperm wood.Journal of experimental botany · 2024Article
- Integument cell differentiation in dandelions (Taraxacum, Asteraceae, Lactuceae) with special attention paid to plasmodesmata.Protoplasma · 2016Article
- Spatial pattern of long-distance symplasmic transport and communication in trees.Plant signaling & behavior · 2013Article
- CRT1 is a nuclear-translocated MORC endonuclease that participates in multiple levels of plant immunity.Nature communications · 2012Article
- Do symplasmic networks in cambial zones correspond with secondary growth patterns?Protoplasma · 2011Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsCambium reactivation after dormancy and budbreak in deciduous trees requires a supply of mobilized reserve materials. The pathway and mode of transfer of these materials are poorly understood.
methodsTransport of reserve materials during cambium reactivation in Populus nigra was investigated by conventional and immunocytochemical TEM analyses, SDS-PAGE, western blotting and intracellular microinjection of fluorescent dyes. KEY
resultsProteinaceous compounds stored in vacuoles and protein bodies of vascular cells and ray cells disappeared within 3 weeks after cambial reactivation and budbreak. Some of these proteins (32 kDa, 30 kDa and 15 kDa) were labelled by lectin antibodies in SDS-PAGE. The same antibodies were localized to plasmodesmata (PDs) between phloem parenchyma, ray cells and fusiform cambial cells. In addition, proteinaceous particles were localized inside the cytoplasmic sleeves of these PDs during budbreak. During this period, the functional diameter of PDs was about 2.2 nm which corresponds approximately to the Stokes' radius of the detected 15-kDa protein.
conclusionsLectin-like reserve proteins or their degradation products seem to be transferred through PDs of phloem parenchyma and rays during cambial reactivation and budbreak. PD transfer of storage proteins is a novelty which supports the concept of symplasmic nutrient supply to the cambial region.
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