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Summary Plant responses to abiotic environmental challenges are known to have lasting effects on the plant beyond the initial stress exposure. Some of these lasting effects are transgenerational, affecting the next generation. The plant response to elevated carbon dioxide (CO2) levels has been well studied. However, these investigations are typically limited to plants grown for a single generation in a high CO2environment while transgenerational studies are rare.We aimed to determine transgenerational growth responses in plants after exposure to high CO2by investigating the direct progeny when returned to baseline CO2levels.We found that both the flowering plantArabidopsis thalianaand seedless nonvascular plantPhyscomitrium patenscontinue to display accelerated growth rates in the progeny of plants exposed to high CO2. We used the model species Arabidopsis to dissect the molecular mechanism and found that DNA methylation pathways are necessary for heritability of this growth response.More specifically, the pathway of RNA‐directed DNA methylation is required to initiate methylation and the proteins CMT2 and CMT3 are needed for the transgenerational propagation of this DNA methylation to the progeny plants. Together, these two DNA methylation pathways establish and then maintain a cellular memory to high CO2exposure.
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Efficient carbene transfer reactivity mediated by Fe( ii ) complexes supported by bulky alkoxides
The reaction of Fe(OR)2(THF)2(OR = bulky alkoxide ligand) with PhIC(CO2Me)2results in the formation of reactive remote carbene/vinyl radical intermediate that undergoes facile cyclopropanation or dimerization.
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- Award ID(s):
- 2348382
- PAR ID:
- 10588109
- Publisher / Repository:
- Chemical Communications
- Date Published:
- Journal Name:
- Chemical Communications
- Volume:
- 60
- Issue:
- 55
- ISSN:
- 1359-7345
- Page Range / eLocation ID:
- 7033 to 7036
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1039/D4CC02108H
