ArticlePlant molecular biology1998
Structure, expression and chromosomal localisation of the metallothionein-like gene family of tomato.
Article in Plant molecular biology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 65 citations in OpenAlex.
- Genome-wide analysis of the metallothionein gene family in cassava reveals its role in response to physiological stress through the regulation of reactive oxygen species.BMC plant biology · 2023Article
- Genome-wide analysis of metallothionein gene family in maize to reveal its role in development and stress resistance to heavy metal.Biological research · 2022Article
- Characterization analysis and heavy metal-binding properties ofFEBS open bio · 2018Article
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- Gene expression analysis of metallothionein and mineral elements uptake in tomato (Solanum lycopersicum) exposed to cadmium.Journal of plant research · 2016Article
- Identification of key genes involved in root development of tomato using expressed sequence tag analysis.Physiology and molecular biology of plants : an international journal of functional plant biology · 2015Article
- Characterization of a Type 1 Metallothionein Gene from the Stresses-Tolerant Plant Ziziphus jujuba.International journal of molecular sciences · 2015Article
- The metallothionein gene, TaMT3, from Tamarix androssowii confers Cd2+ tolerance in tobacco.International journal of molecular sciences · 2014Article
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- Heavy-metal regulation of thioredoxin gene expression in chlamydomonas reinhardtiiPlant physiology · 1999Article
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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
Metallothioneins are small cysteine-rich proteins with strong binding capacity for heavy metals. In animals and fungi they are involved in cellular detoxification processes. Although genes for similar proteins exist in plants, less is known about the putative functions of their protein products. Here, we describe the characterisation of cDNAs specific for four genes (LEMT1, LEMT2, LEMT3 and LEMT4) encoding metallothionein-like proteins from tomato. Based on the characteristic cysteine pattern, the LEMT1, LEMT3 and LEMT4 gene products represent type 2 proteins. In contrast, the LEMT2 protein might establish a new structural pattern of metallothionein-like proteins not described before. Mapping experiments demonstrate that all four genes are localised at different genetic loci within the tomato genome. The members of the small gene family show a differential organ specific expression pattern. Expression of these genes is also influenced by heavy metals and by treatment with the thiol-oxidising drug diamide. We further describe the expression of the LEMT genes under different iron supply conditions both in tomato wild type as well as in the mutant chloronerva, which is defective in metal uptake regulation and exhibits a characteristic 'apparent iron deficiency syndrome'.
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