ArticlePlanta2009
Protein phosphatase activity and sucrose-mediated induction of fructan synthesis in wheat.
Article in Planta, 2009. 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, 29 citations in OpenAlex.
- Genome-wide linkage and association mapping identified a novel candidate gene, TaGLK-A1, underlying fructan content in wheat grain.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Review
- Photosynthetic Carbon Fixation and Sucrose Metabolism Supplemented by Weighted Gene Co-expression Network Analysis in Response to Water Stress in Rice With Overlapping Growth Stages.Frontiers in plant science · 2022Article
- PuWRKY31 affects ethylene production in response to sucrose signal in pear fruit.Horticulture research · 2022Article
- Changes in Lolium perenne transcriptome during cold acclimation in two genotypes adapted to different climatic conditions.BMC plant biology · 2015Article
- Spatiotemporal Dynamics of Oligofructan Metabolism and Suggested Functions in Developing Cereal Grains.Frontiers in plant science · 2015Review
- Fructan and hormone connections.Frontiers in plant science · 2015Article
- Spatio-temporal dynamics of fructan metabolism in developing barley grains.The Plant cell · 2014Article
- TaMYB13-1, a R2R3 MYB transcription factor, regulates the fructan synthetic pathway and contributes to enhanced fructan accumulation in bread wheat.Journal of experimental botany · 2013Article
- Sucrose signaling in plants: a world yet to be explored.Plant signaling & behavior · 2013Review
- Dissecting the molecular basis of the contribution of source strength to high fructan accumulation in wheat.Plant molecular biology · 2013Article
- Multifunctional fructans and raffinose family oligosaccharides.Frontiers in plant science · 2013Article
- Sugar signaling of fructan metabolism: New insights on protein phosphatases in sucrose-fed wheat leaves.Plant signaling & behavior · 2010Article
Corrections and comments
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Authors and funding
5 authors at 4 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In this work, we analyze protein phosphatase (PP) involvement in the sucrose-mediated induction of fructan metabolism in wheat (Triticum aestivum). The addition of okadaic acid (OA), a PP-inhibitor, to sucrose-fed leaves reduced fructosylsucrose-synthesizing activity (FSS) induction in a dose-dependent manner. The expression of the two enzymes that contribute to FSS activity, 1-SST (1-sucrose:sucrose fructosyltransferase, E.C. 2.4.1.99) and 6-SFT (6-sucrose:fructan fructosyltransferase, E.C. 2.4.1.10), was blocked by 1 microM OA. These results suggest the involvement of a PP type 2A in sucrose signaling leading to fructan synthesis. OA addition to the feeding medium impaired both sucrose accumulation in leaves and the expression of sucrose-H+ symporter (SUT1). It is known that sucrose concentration must exceed a threshold for the induction of fructan metabolism; hence PP2A inhibition may result in lower sucrose levels than required for this induction. OA also induced the vacuolar acid invertase (acid INV) transcript levels suggesting that PP activity might play a role in carbon partitioning. Total extractable PP2A activity decreased during 24 h of treatment with sucrose, in parallel with declining sugar uptake into leaf tissues. In conclusion, our results suggest that PP2A is involved in sucrose-induction of fructan metabolism and may play a role in regulating sucrose uptake, but do not rule out that further steps in sucrose signaling pathway may be affected.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.