| Title |
Epigenetic control of heavy metal stress response in mycorrhizal versus non-mycorrhizal poplar plants
|
|---|---|
| Published in |
Environmental Science and Pollution Research, August 2013
|
| DOI | 10.1007/s11356-013-2072-4 |
| Pubmed ID | |
| Authors |
Angela Cicatelli, Valeria Todeschini, Guido Lingua, Stefania Biondi, Patrizia Torrigiani, Stefano Castiglione |
| Abstract |
It was previously shown that arbuscular mycorrhizal fungi (AMF) exert a significant improvement of growth in a tolerant white poplar (Populus alba L.) clone (AL35) grown on Cu- and Zn-polluted soil via foliar alterations in the levels of defence/stress-related transcripts and molecules. However, nothing is known about the epigenetic changes which occur during tolerance acquisition in response to heavy metals (HMs) in the same mycorrhizal vs. non-mycorrhizal poplar plants. In order to analyse the epigenome in leaves of AL35 plants inoculated or not with AMF and grown in a greenhouse on multimetal polluted or unpolluted soil, the Methylation Sensitive Amplification Polymorphism (MSAP) approach was adopted to detect cytosine DNA methylation. Modest changes in cytosine methylation patterns were detected at first sampling (4 months from planting), whereas extensive alterations (hypomethylation) occurred at second sampling (after 6 months) in mycorrhizal plants grown in the presence of HMs. The sequencing of MSAP fragments led to the identification of genes belonging to several Gene Ontology categories. Seven MSAP fragments, selected on the basis of DNA methylation status in treated vs control AL35 leaves at the end of the experiment, were analysed for their transcript levels by means of qRT-PCR. Gene expression varied in treated samples relative to controls in response to HMs and/or AMF inoculation; in particular, transcripts of genes involved in RNA processing, cell wall and amino acid metabolism were upregulated in the presence of AMF with or without HMs. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 92 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 1% |
| Italy | 1 | 1% |
| Unknown | 90 | 98% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 22 | 24% |
| Student > Ph. D. Student | 21 | 23% |
| Student > Master | 9 | 10% |
| Student > Bachelor | 6 | 7% |
| Student > Doctoral Student | 5 | 5% |
| Other | 12 | 13% |
| Unknown | 17 | 18% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 47 | 51% |
| Environmental Science | 9 | 10% |
| Biochemistry, Genetics and Molecular Biology | 8 | 9% |
| Computer Science | 2 | 2% |
| Earth and Planetary Sciences | 1 | 1% |
| Other | 3 | 3% |
| Unknown | 22 | 24% |
Attention Score in Context
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#21,420,714
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#7,000
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Outputs of similar age from Environmental Science and Pollution Research
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