Heat Stress in
5-hydroxymethylcytosine
5-methylcytosine
Aleppo pine
DEHYDRATION INDUCED PROTEIN 19
SUPEROXIDE DISMUTASE [Cu–Zn]
conifers
epigenetics
priming
Journal
Plants (Basel, Switzerland)
ISSN: 2223-7747
Titre abrégé: Plants (Basel)
Pays: Switzerland
ID NLM: 101596181
Informations de publication
Date de publication:
29 Oct 2021
29 Oct 2021
Historique:
received:
03
09
2021
revised:
25
10
2021
accepted:
26
10
2021
entrez:
27
11
2021
pubmed:
28
11
2021
medline:
28
11
2021
Statut:
epublish
Résumé
In the current context of climate change, plants need to develop different mechanisms of stress tolerance and adaptation to cope with changing environmental conditions. Temperature is one of the most important abiotic stresses that forest trees have to overcome. Recent research developed in our laboratory demonstrated that high temperatures during different stages of conifer somatic embryogenesis (SE) modify subsequent phases of the process and the behavior of the resulting ex vitro somatic plants. For this reason, Aleppo pine SE was induced under different heat stress treatments (40 °C for 4 h, 50 °C for 30 min, and 60 °C for 5 min) in order to analyze its effect on the global DNA methylation rates and the differential expression of four stress-related genes at different stages of the SE process. Results showed that a slight decrease of DNA methylation at proliferating embryonal masses (EMs) can correlate with the final efficiency of the process. Additionally, different expression patterns for stress-related genes were found in EMs and needles from the in vitro somatic plants obtained; the
Identifiants
pubmed: 34834696
pii: plants10112333
doi: 10.3390/plants10112333
pmc: PMC8622292
pii:
doi:
Types de publication
Journal Article
Langues
eng
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