ArticleJournal of experimental botany2015
Polypyrimidine tract-binding proteins of potato mediate tuberization through an interaction with StBEL5 RNA.
Article in Journal of experimental botany, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.
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Who cites it
44 citing papers in PubMed, 81 citations in OpenAlex.
- Unraveling the Intertwined Networks of Potato Tuberization: From Epitranscriptomic Signaling to Metabolic Reprogramming.International journal of molecular sciences · 2026Review
- Plant growth-promoting Pseudomonas strains modulate potato tuberization signalling and development.Journal of experimental botany · 2026Article
- Developing a mobile RNA delivery system for grafting trait improvement.EMBO reports · 2026Article
- The role of transcription factor StBEL11 in carbon allocation and tuberization in cultivated potato differs from that known for the model Andean genotype.Journal of experimental botany · 2026Article
- StSP6A: a key regulator integrating multiple signals for potato tuber formation.Plant cell reports · 2026Review
- Genome Editing by Grafting.International journal of molecular sciences · 2025Review
- Regulation of storage organ formation by long-distance tuberigen signals in potato.Horticulture research · 2025Article
- Article
- Advances in understanding the graft healing mechanism: a review of factors and regulatory pathways.Horticulture research · 2024Article
- BEL transcription factors in prominent Solanaceae crops: the missing pieces of the jigsaw in plant development.Planta · 2023Review
- Tandem Expression of a Mobile RNA and Its RNA-Binding Protein(s) Enhances Tuber Productivity in Potato.International journal of molecular sciences · 2023Article
- Long-Distance Movement ofPlants (Basel, Switzerland) · 2023Article
- The mRNA mobileome: challenges and opportunities for deciphering signals from the noise.The Plant cell · 2023Review
- The β-1,3-Glucanase Degrades Callose at Plasmodesmata to Facilitate the Transport of the Ribonucleoprotein Complex inInternational journal of molecular sciences · 2023Article
- Function of Plasmodesmata in the Interaction of Plants with Microbes and Viruses.Methods in molecular biology (Clifton, N.J.) · 2022Article
- Potato tuber degradation is regulated by carbohydrate metabolism: Results of transcriptomic analysis.Plant direct · 2022Article
- Development of aerial and belowground tubers in potato is governed by photoperiod and epigenetic mechanism.Plant physiology · 2021Review
- RBP differentiation contributes to selective transmissibility of OPT3 mRNAs.Plant physiology · 2021Article
- Rootstocks OverexpressingInternational journal of molecular sciences · 2021Article
- Effect of Transgenic Rootstock Grafting on the Omics Profiles in Tomato.Food safety (Tokyo, Japan) · 2021Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Polypyrimidine tract-binding (PTB) proteins are a family of RNA-binding proteins that function in a wide range of RNA metabolic processes by binding to motifs rich in uracils and cytosines. A PTB protein of pumpkin was identified as the core protein of an RNA-protein complex that trafficks RNA. The biological function of the PTB-RNA complex, however, has not been demonstrated. In potato, six PTB proteins have been identified, and two, designated StPTB1 and StPTB6, are similar to the phloem-mobile pumpkin type. RNA binding assays confirmed the interaction of StPTB1 and StPTB6 with discrete pyrimidine-rich sequences of the 3'-untranslated regions of the phloem-mobile mRNA, StBEL5. The promoter of StPTB1 was active in companion cells of phloem in both stem and petioles. Expression of both types was evident in phloem cells of roots and in stolons during tuber formation. RNA accumulation of both PTB proteins was induced by short days in leaves in correlation with enhanced accumulation of StBEL5 RNA. StPTB suppression lines exhibited reduced tuber yields and decreased StBEL5 RNA accumulation, whereas StPTB overexpression lines displayed an increase in tuber production correlated with the enhanced production in stolons of steady-state levels of StBEL5 transcripts and RNA of key tuber identity genes. In StPTB overexpression lines, both the stability and long-distance transport of StBEL5 transcripts were enhanced, whereas in suppression lines stability and transport decreased. Using a transgenic approach, it is shown that the StPTB family of RNA-binding proteins regulate specific stages of development through an interaction with phloem-mobile transcripts of StBEL5.
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