Cited by 203Plant Micronutrient Interactions and EffectsTrace Elements in HealthHeavy Metals in Plants

MTP1-dependent Zn sequestration into shoot vacuoles suggests dual roles in Zn tolerance and accumulation in Zn-hyperaccumulating plants

Open access
Gustin, Jeffery L., Loureiro, Marcello E., Kim, Donggiun, Na, Gunnam, Tikhonova, Marina, Salt, David E.·2009·The Plant Journal

Abstract

The integral membrane protein Thlaspi goesingense metal tolerance protein 1 (TgMTP1) has been suggested to play an important role in Zn hyperaccumulation in T. goesingense. Here, we show that the TgMTP1 protein is accumulated to high levels at the vacuolar membrane in shoot tissue of T. goesingense. TgMTP1 is likely to act in the transport of Zn into the vacuole, enhancing both Zn accumulation and tolerance. By specifically expressing TgMTP1 in Arabidopsis thaliana shoots, we show that TgMTP1, localized at the vacuolar membrane, can drive the enhanced shoot accumulation of Zn by initiating a systemic Zn deficiency response. The systematic response includes increased expression of Zn transporters (ZIP3, ZIP4, ZIP5 and ZIP9) in both shoot and root tissue. Furthermore, shoot-specific accumulation of TgMTP1 at the vacuolar membrane also leads to increased resistance to Zn in A. thaliana, probably through enhanced Zn compartmentalization in the vacuole. Such evidence leads to the conclusion that the high levels of TgMTP1 at the vacuolar membrane in shoot tissue of the Zn hyperaccumulator T. goesingense play a role in both Zn tolerance and enhanced Zn uptake and accumulation, via the activation of a systemic Zn deficiency response.

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.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1111/j.1365-313x.2008.03754.x

Cites

45 of 45 references verified0 citation errors · 0 not checkable

Statistics

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.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • MTP1 was overexpressed in A. halleri and N. caerulescens to transport Zn and Cd.

    “Moreover, MTP1 was overexpressed in A. halleri and N. caerulescens to transport Zn and Cd (Dräger et al., 2004; Gustin et al., 2009).”

    From Plant hyperaccumulators: a state-of-the-art review on mechanism of heavy metal transport and sequestration (2025) · cites this paper as Gustin et al., 2009

    The Discussion (page unavailable) reports high MTP1 transcript levels in A. halleri and T. caerulescens and suggests a role in Zn hyperaccumulation. It does not establish that MTP1 transports Cd in either species; the paper’s transport evidence concerns Zn. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Transformation of TgMTP1 in A. thaliana resulted in enhanced accumulation of Zn into vacuoles, attributing to Zn tolerance.

    “The transformation of TgMTP1 in A. thaliana resulted in enhanced accumulation of Zn into vacuoles, attributing to Zn tolerance (Gustin et al., 2009).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

1 of the 46 references couldn’t be matched to a known paper.

Research works printed but not linked: 4

  1. Chlorophylls and carotenoids: pig- ments of photosynthetic biomembranes. In. Methods in Enzy- mology Plant Cell Membranes, Vol. 148 (Douce, L.Pa.R., ed.). New York: Academic Press, pp. 350-382.
  2. Jeffery L. Gustin et al. ª 2009 The Authors Journal compilation ª 2009 Blackwell Publishing Ltd, The Plant Journal, (2009), 57, 1116-1127 1365313x, 2009, 6, Downloaded from https://onlinelibrary.wiley.com/doi/10.1111/j.1365-313X.2008.03754.x by Readcube (Labtiva Inc.), Wiley Online Library on [26/12/2023]. See the Terms and Conditions (https://onlinelibrary.wiley.com/terms-and-conditions) on Wiley Online Library for rules of use; OA articles are governed by the applicable Creative Commons License · DOI
  3. Sambrook, J. and Russell, D. (2001) Molecular Cloning, A Labora- tory Manual, 3rd edn. Cold Springs Harbor, NY: Cold Springs Harbor Laboratory Press.
  4. Weigel, D. and Glazebrook, J. (2002) Arabidosis A Laboratory Manual. Cold Spring Harbor, NY: Cold Spring Harbor Laboratory Press.

Cited by

Sorted by citations

Authors
Gustin, J. L., Loureiro, M. E., Kim, D., Na, G., Tikhonova, M., & Salt, D. E.
Affiliations
  • Purdue University West Lafayette (US)
  • Universidade Federal de Viçosa (BR)
  • Gyeongsang National University (KR)
Corresponding author
Salt, David E.
Venue
The Plant Journal
Publisher
Wiley
Published
2009-03
Volume
57
Issue
6
Pages
1116-1127
ISSN
  • 0960-7412 (ISSN-L)
  • 1365-313X
OpenAlex
W2119893617
Cited by
203
References
46
Citations by year
2026: 7 · 2025: 7 · 2024: 7 · 2023: 8 · 2022: 4 · 2021: 24 · 2020: 18 · 2019: 15 · 2018: 8 · 2017: 10 · 2016: 12 · 2015: 8 · 2014: 13 · 2013: 14 · 2012: 11
FWCI
14.92
Type
journal article
Language
en
Open access
Locations
  • The Plant Journal (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation
  • Purdue University
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Micronutrient Interactions and Effects
  • Health Sciences › Nursing › Nutrition and Dietetics › Trace Elements in Health
  • Physical Sciences › Chemistry › Analytical Chemistry › Heavy Metals in Plants
Keywords
metal tolerance proteins, zinc hyperaccumulation, tonoplast, zinc tolerance, ZIP transporters, zinc uptake, Arabidopsis thaliana transformation, metal hyperaccumulator plants
MeSH terms
Amino Acid Sequence, Molecular Sequence Data, Plant Proteins, Vacuoles, Zinc, Sequence Alignment, Arabidopsis, Gene Expression Regulation, Plant, Plant Shoots, Cation Transport Proteins, Thlaspi

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