ArticlePlanta2005
Variations in plant metallothioneins: the heavy metal hyperaccumulator Thlaspi caerulescens as a study case.
Article in Planta, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed, 124 citations in OpenAlex.
- The Contribution ofFoods (Basel, Switzerland) · 2024Article
- Differentiated Zn(II) binding affinities in animal, plant, and bacterial metallothioneins define their zinc buffering capacity at physiological pZn.Metallomics : integrated biometal science · 2023Article
- The Role of Sulfur in Agronomic Biofortification with Essential Micronutrients.Plants (Basel, Switzerland) · 2022Review
- Genome-wide analysis of metallothionein gene family in maize to reveal its role in development and stress resistance to heavy metal.Biological research · 2022Article
- Article
- Comparative understanding of metal hyperaccumulation in plants: a mini-review.Environmental geochemistry and health · 2021Review
- Zinc Hyperaccumulation in Plants: A Review.Plants (Basel, Switzerland) · 2020Review
- Genome-Wide Characterization and Analysis of Metallothionein Family Genes That Function in Metal Stress Tolerance inInternational journal of molecular sciences · 2018Article
- Enrichment and Identification of the Most Abundant Zinc Binding Proteins in Developing Barley Grains by Zinc-IMAC Capture and Nano LC-MS/MS.Proteomes · 2018Article
- Article
- Article
- Jacks of metal/metalloid chelation trade in plants-an overview.Frontiers in plant science · 2015Review
- Expression response of duplicated metallothionein 3 gene to copper stress in Silene vulgaris ecotypes.Protoplasma · 2014Article
- ScMT2-1-3, a metallothionein gene of sugarcane, plays an important role in the regulation of heavy metal tolerance/accumulation.BioMed research international · 2013Article
- Zn tolerance of novel Colocasia esculenta metallothionein and its domains in Escherichia coli and tobacco.Journal of plant research · 2012Article
- The molecular mechanism of zinc and cadmium stress response in plants.Cellular and molecular life sciences : CMLS · 2012Review
- Effects on survival and reproduction of Porcellio dilatatus exposed to different Cd species.Ecotoxicology (London, England) · 2012Article
- TcOPT3, a member of oligopeptide transporters from the hyperaccumulator Thlaspi caerulescens, is a novel Fe/Zn/Cd/Cu transporter.PloS one · 2012Article
- De novo assembly and characterization of root transcriptome using Illumina paired-end sequencing and development of cSSR markers in sweet potato (Ipomoea batatas).BMC genomics · 2010Article
- Metal hyperaccumulation armors plants against disease.PLoS pathogens · 2010Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plant metallothioneins (MTs) are extremely diverse and are thought to be involved in metal homeostasis or detoxification. Thlaspi caerulescens is a model Zn/Cd hyperaccumulator and thus constitutes an ideal system to study the variability of these MTs. Two T. caerulescens cDNAs (accession: 665511; accession: 665515), that are highly homologous to type 1 and type 2 Arabidopsis thaliana MTs, have been isolated using a functional screen for plant cDNAs that confer Cd tolerance to yeast. However, TcMT1 has a much shorter N-terminal domain than that of A. thaliana and so lacks Cys motifs conserved through all the plant MTs classified as type 1. A systematic search in plant databases allowed the detection of MT-related sequences. Sixty-four percent fulfil the criteria for MT classification described in Cobbett and Goldsbrough (2002) and further extend our knowledge about other conserved residues that might play an important role in plant MT structure. In addition, 34% of the total MT-related sequences cannot be classified strictly as they display modifications in the conserved residues according to the current plant MTs' classification. The significance of this variability in plant MT sequences is discussed. Functional complementation in yeast was used to assess whether these variations may alter the MTs' function in T. caerulescens. Regulation of the expression of MTs in T. caerulescens was also investigated. TcMT1 and TcMT2 display higher expression in T. caerulescens than in A. thaliana. Moreover, their differential expression patterns in organs and in response to metal exposure, suggest that the two types of MTs may have diverse roles and functions in T. caerulescens.
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