Abstract
Plants, as sessile organisms, need to sense and adapt to heterogeneous environments and have developed sophisticated responses by changing their cellular physiology, gene regulation, and genome stability. Recent work demonstrated heritable stress effects on the control of genome stability in plants--a phenomenon that was suggested to be of epigenetic nature. Here, we show that temperature and UV-B stress cause immediate and heritable changes in the epigenetic control of a silent reporter gene in Arabidopsis. This stress-mediated release of gene silencing correlated with pronounced alterations in histone occupancy and in histone H3 acetylation but did not involve adjustments in DNA methylation. We observed transmission of stress effects on reporter gene silencing to non-stressed progeny, but this effect was restricted to areas consisting of a small number of cells and limited to a few non-stressed progeny generations. Furthermore, stress-induced release of gene silencing was antagonized and reset during seed aging. The transient nature of this phenomenon highlights the ability of plants to restrict stress-induced relaxation of epigenetic control mechanisms, which likely contributes to safeguarding genome integrity.
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Claims 7
Claim · model-written summary
Temperature stress caused immediate and heritable release of reporter gene silencing.
- Taxon
- Arabidopsis
Arabidopsist0 - Treatment
- temperaturee0
- Gene
- reporter genee0
- Outcome
- gene silencinge1
- Direction
- releasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis”
e0“temperature and UV-B stress cause immediate and heritable changes in the epigenetic control of a silent reporter gene in Arabidopsis”
e1“This stress-mediated release of gene silencing”
Claim · model-written summary
UV-B stress caused immediate and heritable release of reporter gene silencing.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- UV-B stresse0
- Gene
- reporter genee0
- Outcome
- gene silencinge1
- Direction
- releasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis”
e0“temperature and UV-B stress cause immediate and heritable changes in the epigenetic control of a silent reporter gene in Arabidopsis”
e1“This stress-mediated release of gene silencing”
Claim · model-written summary
Stress-mediated silencing release correlated with changes in histone occupancy.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- stress-mediated release of gene silencinge0
- Outcome
- histone occupancye0
- Direction
- alterationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis”
e0“This stress-mediated release of gene silencing correlated with pronounced alterations in histone occupancy and in histone H3 acetylation but did not involve adjustments in DNA methylation”
Claim · model-written summary
Stress-mediated silencing release correlated with changes in histone H3 acetylation.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- stress-mediated release of gene silencinge0
- Outcome
- histone H3 acetylatione0
- Direction
- alterationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis”
e0“This stress-mediated release of gene silencing correlated with pronounced alterations in histone occupancy and in histone H3 acetylation but did not involve adjustments in DNA methylation”
Claim · model-written summary
Stress-mediated silencing release did not involve adjustments in DNA methylation.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- stress-mediated release of gene silencinge0
- Outcome
- DNA methylatione0
- Direction
- did not involve adjustmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis”
e0“This stress-mediated release of gene silencing correlated with pronounced alterations in histone occupancy and in histone H3 acetylation but did not involve adjustments in DNA methylation”
Claim · model-written summary
Stress effects on reporter gene silencing reached non-stressed progeny, but only small cell areas and a few generations.
- Taxon
- ArabidopsisArabidopsist0
- Gene
- reporter genee0
- Outcome
- transmission of stress effects on reporter gene silencing to non-stressed progenye0
- Qualifier
- restricted to areas consisting of a small number of cells and limited to a few non-stressed progeny generationse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis”
e0“We observed transmission of stress effects on reporter gene silencing to non-stressed progeny, but this effect was restricted to areas consisting of a small number of cells and limited to a few non-stressed progeny generations”
Claim · model-written summary
Seed aging antagonized and reset stress-induced release of gene silencing.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- seed aginge0
- Outcome
- stress-induced release of gene silencinge0
- Direction
- antagonized and resete0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis”
e0“stress-induced release of gene silencing was antagonized and reset during seed aging”
The same questions in other papers
uv · molecular: expression · ArabidopsisPositive and negative results
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See all 19 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.