ArticleJournal of experimental botany2011
Poplar maintains zinc homeostasis with heavy metal genes HMA4 and PCS1.
Article in Journal of experimental botany, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 74 citations in OpenAlex.
- Evaluation of zinc tolerance and accumulation in eight cultivars of bermudagrass (Cynodon spp.): implications for zinc phytoremediation.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2023Article
- Phytochelatins: Sulfur-Containing Metal(loid)-Chelating Ligands in Plants.International journal of molecular sciences · 2023Review
- PcNRAMP1 Enhances Cadmium Uptake and Accumulation inInternational journal of molecular sciences · 2022Article
- Duplication of NRAMP3 gene in poplars generated two homologous transporters with distinct functions.Molecular biology and evolution · 2022Article
- Article
- Use of Black Poplar Leaves for the Biomonitoring of Air Pollution in an Urban Agglomeration.Plants (Basel, Switzerland) · 2021Article
- Transcriptomics of Biostimulation of Plants Under Abiotic Stress.Frontiers in genetics · 2021Review
- Over-expression of AQUA1 in Populus alba Villafranca clone increases relative growth rate and water use efficiency, under Zn excess condition.Plant cell reports · 2016Article
- RNA sequencing of Populus x canadensis roots identifies key molecular mechanisms underlying physiological adaption to excess zinc.PloS one · 2015Article
- Arabidopsis thaliana phytochelatin synthase 2 is constitutively active in vivo and can rescue the growth defect of the PCS1-deficient cad1-3 mutant on Cd-contaminated soil.Journal of experimental botany · 2014Article
- Expression of zinc and cadmium responsive genes in leaves of willow (Salix caprea L.) genotypes with different accumulation characteristics.Environmental pollution (Barking, Essex : 1987) · 2013Article
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Perennial woody species, such as poplar (Populus spp.) must acquire necessary heavy metals like zinc (Zn) while avoiding potential toxicity. Poplar contains genes with sequence homology to genes HMA4 and PCS1 from other species which are involved in heavy metal regulation. While basic genomic conservation exists, poplar does not have a hyperaccumulating phenotype. Poplar has a common indicator phenotype in which heavy metal accumulation is proportional to environmental concentrations but excesses are prevented. Phenotype is partly affected by regulation of HMA4 and PCS1 transcriptional abundance. Wild-type poplar down-regulates several transcripts in its Zn-interacting pathway at high Zn levels. Also, overexpressed PtHMA4 and PtPCS1 genes result in varying Zn phenotypes in poplar; specifically, there is a doubling of Zn accumulation in leaf tissues in an overexpressed PtPCS1 line. The genomic complement and regulation of poplar highlighted in this study supports a role of HMA4 and PCS1 in Zn regulation dictating its phenotype. These genes can be altered in poplar to change its interaction with Zn. However, other poplar genes in the surrounding pathway may maintain the phenotype by inhibiting drastic changes in heavy metal accumulation with a single gene transformation.
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