ArticleJournal of experimental botany2020
Sucrose regulates wall ingrowth deposition in phloem parenchyma transfer cells in Arabidopsis via affecting phloem loading activity.
Article in Journal of experimental botany, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 46 citations in OpenAlex.
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- Comparative transcriptome analysis of oat varieties with different flowering performances under a short-day photoperiod.BMC plant biology · 2025Article
- The Hemibiotrophic Apple Scab FungusJournal of fungi (Basel, Switzerland) · 2024Article
- Significance of Raffinose Family Oligosaccharides (RFOs) metabolism in plants.Advanced biotechnology · 2024Review
- AtSWEET11 and AtSWEET12 transporters function in tandem to modulate sugar flux in plants.Plant direct · 2023Article
- Association mapping for protein, total soluble sugars, starch, amylose and chlorophyll content in rice.BMC plant biology · 2022Article
- Asymmetric wall ingrowth deposition in Arabidopsis phloem parenchyma transfer cells is tightly associated with sieve elements.Journal of experimental botany · 2022Article
- Versatile roles of sorbitol in higher plants: luxury resource, effective defender or something else?Planta · 2022Review
- Sugar signal mediates flavonoid biosynthesis in tea leaves.Horticulture research · 2022Article
- Cellular export of sugars and amino acids: role in feeding other cells and organisms.Plant physiology · 2021Review
- Article
- Unraveling the puzzle of phloem parenchyma transfer cell wall ingrowth.Journal of experimental botany · 2020Article
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4 authors at 1 institution in 1 country.
Funding
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Abstract
In Arabidopsis thaliana, phloem parenchyma transfer cells (PPTCs) occur in leaf minor veins and play a pivotal role in phloem loading. Wall ingrowth formation in PPTCs is induced by the phloem loading activity of these cells, which is regulated by sucrose (Suc). The effects of endogenous versus exogenous Suc on wall ingrowth deposition, however, differ. Elevating endogenous Suc levels by increased light enhanced wall ingrowth formation, whereas lowering endogenous Suc levels by dark treatment or genetically in ch-1 resulted in lower levels of deposition. In contrast, exogenously applied Suc, or Suc derived from other organs, repressed wall ingrowth deposition. Analysis of pAtSUC2::GFP plants, used as a marker for phloem loading status, suggested that wall ingrowth formation is correlated with phloem loading activity. Gene expression analysis revealed that exogenous Suc down-regulated expression of AtSWEET11 and 12, whereas endogenous Suc up-regulated AtSWEET11 expression. Analysis of a TREHALOSE 6-PHOSPHATE (T6P) SYNTHASE overexpression line and the hexokinase (HXK)-null mutant, gin2-1, suggested that Suc signalling of wall ingrowth formation is independent of T6P and HXK. Collectively, these results are consistent with the conclusion that Suc regulates wall ingrowth formation via affecting Suc exporting activity in PPTCs.
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