The DOI matches its Crossref record.
Macromolecular Trafficking Indicated by Localization and Turnover of Sucrose Transporters in Enucleate Sieve Elements
Abstract
The leaf sucrose transporter SUT1 is essential for phloem loading and long-distance transport of assimilates. Both SUT1 messenger RNA (mRNA) and protein were shown to be diurnally regulated and to have high turnover rates. SUT1 protein was detected by immunolocalization in plasma membranes of enucleate sieve elements (SEs) in tobacco, potato, and tomato. Analysis by in situ hybridization showed that SUT1 mRNA localizes mainly to the SE and is preferentially associated with plasmodesmata. Antisense inhibition of SUT1 expression under control of a companion cell (CC)-specific promoter indicated synthesis of SUT1 mRNA in the CC. These results provide evidence for targeting of plant endogenous mRNA and potentially SUT1 protein through phloem plasmodesmata and for sucrose loading at the plasma membrane of SE.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
The biochemical and molecular basis for photosynthetic acclimation to elevated atmospheric CO2
MOORE, B. D., CHENG, S. ‐., SIMS, D., & SEEMANN, J. R. (1999) · Plant, Cell & Environment · doi:10.1046/j.1365-3040.1999.00432.x · Cited by 458
Sucrose is a signal molecule in assimilate partitioning
Chiou, T.-J., & Bush, D. R. (1998) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.95.8.4784 · Cited by 441
Phloem loading and unloading of sugars and amino acids
LALONDE, S., TEGEDER, M., THRONE‐HOLST, M., FROMMER, W. B., & PATRICK, J. W. (2003) · Plant, Cell & Environment · doi:10.1046/j.1365-3040.2003.00847.x · Cited by 438
Self-citationThe Dual Function of Sugar Carriers: Transport and Sugar Sensing
Lalonde, S., Boles, E., Hellmann, H., Barker, L., Patrick, J. W., Frommer, W. B., & Ward, J. M. (1999) · The Plant Cell · doi:10.1105/tpc.11.4.707 · Cited by 432
Self-citationAmino acid transport in plants
Fischer, W. (1998) · Trends in Plant Science · doi:10.1016/s1360-1385(98)01231-x · Cited by 357
Metadata
- Authors
- Kühn, C., Franceschi, V. R., Schulz, A., Lemoine, R., & Frommer, W. B.
- Venue
- Science
- Published
- 1997-02-28
- Volume
- 275
- Issue
- 5304
- Pages
- 1298-1300
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2136572969
- Cited by
- 464
- References
- 0
- FWCI
- 49.98
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Macromolecular Trafficking Indicated by Localization and Turnover of Sucrose Transporters in Enucleate Sieve Elements. https://app.cochat.ai/papers/10.1126/science.275.5304.1298
- The paper
- Kühn, C., Franceschi, V. R., Schulz, A., Lemoine, R., & Frommer, W. B. (1997). Macromolecular Trafficking Indicated by Localization and Turnover of Sucrose Transporters in Enucleate Sieve Elements. Science. https://doi.org/10.1126/science.275.5304.1298
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
