ArticlePlant physiology2009
The phloem-delivered RNA pool contains small noncoding RNAs and interferes with translation.
Article in Plant physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 148 papers.
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Who cites it
148 citing papers in PubMed, 254 citations in OpenAlex.
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- Identification of tRNA-Derived Fragments in Legumes.Methods in molecular biology (Clifton, N.J.) · 2026Article
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- The biology of grafting and its applications in studying information exchange between plants.Nature plants · 2025Review
- Identification of Long-Distance Mobile mRNAs Responding to Drought Stress in Heterografted Tomato Plants.International journal of molecular sciences · 2025Article
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- Kynurenine monooxygenaseFrontiers in microbiology · 2025Article
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- Roles and regulation of tRNA-derived small RNAs in animals.Nature reviews. Molecular cell biology · 2024Review
- RNS2 is required for the biogenesis of a wounding responsive 16 nts tsRNA in Arabidopsis thaliana.Plant molecular biology · 2024Article
- The Small RNA Component ofPlants (Basel, Switzerland) · 2023Article
- Emerging roles of tRNA-derived small RNAs in cancer biology.Experimental & molecular medicine · 2023Review
- Rock, scissors, paper: How RNA structure informs function.The Plant cell · 2023Article
- Extracellular RNA: mechanisms of secretion and potential functions.Journal of experimental botany · 2023Article
- Staying together after the breakup: tRNA halves in extracellular fluids.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Nicked tRNAs are stable reservoirs of tRNA halves in cells and biofluids.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
88 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In plants, the vascular tissue contains the enucleated sieve tubes facilitating long-distance transport of nutrients, hormones, and proteins. In addition, several mRNAs and small interfering RNAs/microRNAs were shown to be delivered via sieve tubes whose content is embodied by the phloem sap (PS). A number of these phloem transcripts are transported from source to sink tissues and function at targeted tissues. To gain additional insights into phloem-delivered RNAs and their potential role in signaling, we isolated and characterized PS RNA molecules distinct from microRNAs/small interfering RNAs with a size ranging from 30 to 90 bases. We detected a high number of full-length and phloem-specific fragments of noncoding RNAs such as tRNAs, ribosomal RNAs, and spliceosomal RNAs in the PS of pumpkin (Cucurbita maxima). In vitro assays show that small quantities of PS RNA molecules efficiently inhibit translation in an unspecific manner. Proof of concept that PS-specific tRNA fragments may interfere with ribosomal activity was obtained with artificially produced tRNA fragments. The results are discussed in terms of a functional role for long distance delivered noncoding PS RNAs.
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