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Cited by 327

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Comparative transcriptome analysis of toxic metal responses in Arabidopsis thaliana and the Cd2+‐hypertolerant facultative metallophyte Arabidopsis halleri

Open access
WEBER, MICHAEL, TRAMPCZYNSKA, ALEKSANDRA, CLEMENS, STEPHAN·2006·Plant, Cell & Environment

Abstract

Toxic effects of both essential and non‐essential heavy metals are well documented in plants. Very little is known, however, about their modes of toxicity, about tolerance mechanisms and the signalling cascades involved in mediating transcriptional responses to toxic metal excess. We analysed transcriptome changes upon Cd 2+and Cu 2+exposure in roots of Arabidopsis thaliana and the Cd 2+‐hypertolerant metallophyte Arabidopsis halleri. Particularly, three categories of genes were identified with the help of this comparative approach: (1) common responses, which might indicate stable and functionally relevant changes conserved across plant species; (2) metallophyte‐specific responses as well as transcripts differentially regulated between the two species, representing candidate genes for Cd 2+hypertolerance; and (3) those specifically responsive to Cd 2+and therefore indicative of toxicity mechanisms or potentially involved in signalling cascades. Our data define, for instance,Arabidopsis core responses to Cd 2+and Cu 2+. In addition, they suggest that Cd 2+exposure very rapidly results in apparent Zn deficiency, and they show the existence of highly specific Cd 2+responses and distinct signalling cascades. Array results were independently confirmed by real‐time quantitative PCR, thereby further validating cross‐species transcriptome analysis with oligonucleotide microarrays.

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Metadata

Authors
WEBER, M., TRAMPCZYNSKA, A., & CLEMENS, S.
Venue
Plant, Cell & Environment
Publisher
Wiley
Published
2006-02-23
Volume
29
Issue
5
Pages
950-963
ISSN
  • 0140-7791 (ISSN-L)
  • 1365-3040
OpenAlex
W2093685563
Cited by
327
References
8
FWCI
18.20
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Comparative transcriptome analysis of toxic metal responses in Arabidopsis thaliana and the Cd2+‐hypertolerant facultative metallophyte Arabidopsis halleri. https://app.cochat.ai/papers/10.1111/j.1365-3040.2005.01479.x
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WEBER, M., TRAMPCZYNSKA, A., & CLEMENS, S. (2006). Comparative transcriptome analysis of toxic metal responses in Arabidopsis thaliana and the Cd2+‐hypertolerant facultative metallophyte Arabidopsis halleri. Plant, Cell & Environment. https://doi.org/10.1111/j.1365-3040.2005.01479.x

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