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Adam Hannan Parker

@adamahp.bsky.social
137 followers 208 following 24 posts

DNA (de)methylation and plant immune memory 🌱🧠 Postdoctoral researcher, Ton Lab, University of Sheffield

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Adam Hannan Parker @adamahp.bsky.social · 10/07/2026
Had a fantastic time at @sebiology.bsky.social - great to connect! 🌱 Enjoyed discussing our latest results (doi.org/10.1101/2025...) and recent advances in epigenetic engineering tools. Many thanks to the organisers of the plant epigenetic sessions. @sheffieldpps.bsky.social #PlantScience
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Sjon Hartman @hartman-plantlab.com · 05/05/2026
So happy and proud to share our lab’s first #plantscience research article, revealing that angiosperms have the capacity to encode memory of flooding stress. A heroic effort by @aidamaric.bsky.social in collaboration with @djgibbs.bsky.social and others. A brief 🧵 www.biorxiv.org/content/10.6...
biorxiv.org
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Adam Hannan Parker @adamahp.bsky.social · 10/04/2026
Very cool work that sounds very familiar! Maybe we chose to work in the wrong species... 🌱 www.science.org/doi/10.1126/...
science.org
Distinctive DNA sequence features define epigenetic longevity of inflammatory memory
Tissues harbor memories of inflammation, which heighten sensitivity to diverse future assaults. Whether and how these adaptations are sustained through time and cell division remain poorly understood. We show that in mice, epidermal stem cells store ...
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Reposted by Adam Hannan Parker
Nature Plants @natplants.nature.com · 07/04/2026
New Article: "Occupancy-based mechanism is the chief mode of ROS1 function in preventing DNA hypermethylation" rdcu.be/fb7P0 ROS1 mediates DNA demethylation via a passive mechanism; ROS1 occupancy marks & regulates accessible chromatin, highlighting its diverse roles.
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bioRxiv Plant Bio @biorxiv-plants.bsky.social · 06/04/2026
Spatial organization of plant defense at the infection front www.biorxiv.org/content/10.64898/20…
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Chenxin Li, PhD @chenxinli2.bsky.social · 18/12/2025
Two papers on targeted DNA methylation editing for Arabidopsis came out within a week from each other. 1. www.nature.com/articles/s41... 2. academic.oup.com/pcp/advance-... #PlantSciences
nature.com
Versatile molecular tools enabling customizable DNA methylation editing in Arabidopsis - Nature Communications
Targeted DNA methylation editing is critical for establishing the causal relationship between DNA methylation and its function as well as for epigenetic crop breeding. Here, the authors develop a CRIS...
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Lisa Smith @plantylisasmith.bsky.social · 17/11/2025
Interested in plant development and/or cell walls? We (Sam Amsbury, Andrew Fleming and I) have three PhD positions at the University of Sheffield open for applications until 7th January. We offer a friendly, jointly-run lab, great facilities, an affordable city and proximity to the Peak District!
Details of the three PhD projects on offer: Primed for Protection: Cell Wall Modifications in Plant Defense and Long-Term Immunity, Engineering Stomata: How Shape Informs Function: and Signalling Complexes and Cell Wall Changes during Plant Reproduction
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Jurriaan Ton @jurriaanton.bsky.social · 11/11/2025
🌿 3 new PhD positions in the Ton lab @PPS_UoS. Part of the ERC project '#PlantMemo', exploring how plants remember & respond to stress. 🧬 PhD 1 (UK only)👉 www.findaphd.com/phds/project... 🦠 PhD 2 (UK & EU)👉 www.findaphd.com/phds/project... 🌱 PhD 3 (UK only)👉 www.findaphd.com/phds/project... #PhD
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Anne Roulin @anneroulin.bsky.social · 23/10/2025
Really nice study on the evolutionary dynamics of TEs in maize by @jrossibarra.bsky.social and colleagues 👇 www.biorxiv.org/content/10.1...
biorxiv.org
Genome-wide selection on transposable elements in maize
While most evolutionary research has focused on single nucleotide polymorphisms (SNPs), transposable elements (TEs) represent a major but understudied source of mutations that can influence organismal...
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Gitta Coaker @gittacoaker.bsky.social · 09/10/2025
FRET sensor for SA developed. www.science.org/doi/10.1126/...
science.org
SALICYLIC ACID SENSOR1 reveals the propagation of an SA hormone surge during plant pathogen advance
Salicylic acid (SA) is a key phytohormone that orchestrates immune responses against pathogens, including Pseudomonas syringae bacteria. The timing and extent of SA accumulation are tightly controlled...
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Pierre Baduel @pierrebaduel.bsky.social · 18/09/2025
Happy to share the results of a long-haul post-doc project, now online @science.org, aiming at understanding the rules of transgeneration epigenetic inheritance over TEs in plants and its extent and impact in nature. More below! doi.org/10.1126/scie...
doi.org
Transposable elements are vectors of recurrent transgenerational epigenetic inheritance
DNA methylation loss at transposable elements (TEs) can affect neighboring genes and be epigenetically inherited in plants, yet the determinants and significance of this additional system of inheritan...
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Adam Hannan Parker @adamahp.bsky.social · 17/09/2025
Interesting! www.nature.com/articles/s41... #plantscience #epigenetics
nature.com
Gene body methylation regulates gene expression and mediates phenotypic diversity in natural Arabidopsis populations - Nature Plants
This study shows that epigenetic gene body DNA methylation regulates transcription and accounts for much of its variance in the Arabidopsis population, efficiently identifies genes regulating diverse ...
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Adam Hannan Parker @adamahp.bsky.social · 21/08/2025
forgot to include #plantscience #plantimmunity #epigenetics !
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Adam Hannan Parker @adamahp.bsky.social · 19/08/2025
Very excited to finally share the main findings from my PhD, now out as a preprint! We developed an epigenetic system to understand how plants remember and forget past infections - a phenomenon known as immune memory 🌱🧬🧠 Highlights below! 1/9 www.biorxiv.org/content/10.1...
biorxiv.org
From recall to reset: the role of DNA (de)methylation in modulating plant immune memory
Epigenetic reprogramming is increasingly recognised as a driver of plant immune memory, yet its molecular basis remains poorly understood. Using a chemically inducible transgene in Arabidopsis, we tra...
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Adam Hannan Parker @adamahp.bsky.social · 28/07/2025
www.biorxiv.org/content/10.1... very cool work!
biorxiv.org
Somatic mobility of transposons is explosive and shaped by distinct integration biases in Arabidopsis thaliana
Background The movement of transposable elements (TEs) in somatic cells generates genetic and phenotypic diversity across the soma of individual organisms. This process is especially important in plan...
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Plants, Photosynthesis and Soil @sheffieldpps.bsky.social · 18/06/2025
Plants remember stress! The PlantMemo project, led by ‪@jurriaanton.bsky.social‬, has secured an ERC Advanced Grant for an exciting project decoding how stress “memories” boost plant resilience—paving the way for hardier crops. 🔗 www.sheffield.ac.uk/biosciences/... #PlantScience #PlantImmunity #ERC
sheffield.ac.uk
New research aims to unlock stressful plant memories
New research led by Prof Jurriaan Ton aims to uncover how plants adapt and survive in challenging environments with the ultimate goal to create more resilient crops.
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Marc Somssich @somssich.bsky.social · 06/05/2025
📜 Herbivory-induced green leaf volatiles increase plant performance through jasmonate-dependent plant–soil feedbacks 🧑‍🔬 Lingfei Hu, Meng Ye, @matthiaserb.bsky.social, Jianming Xu, et al. 📔 @natplants.nature.com 🔗 www.nature.com/articles/s41... #️⃣ #PlantScience #PlantImmunity #Herbivory
nature.com
Herbivory-induced green leaf volatiles increase plant performance through jasmonate-dependent plant–soil feedbacks - Nature Plants
This study reports that herbivory-induced volatiles can trigger plant–soil feedbacks that boost performance and yields of cereals in the field.
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jameswalker303.bsky.social @jameswalker303.bsky.social · 09/04/2025
I'm thrilled to share that our study is now published in Cell: Extensive N4 cytosine methylation is essential for Marchantia sperm function. www.cell.com/cell/fulltex... This paper confirms our 4mC discovery in Marchantia sperm and takes it much further. A thread: 0/13
cell.com
Extensive N4 cytosine methylation is essential for Marchantia sperm function
Global N4 cytosine methylation in Marchantia polymorpha sperm regulates gene expression and promotes sperm fertility.
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Ka Wai Ma @kawaima.bsky.social · 01/04/2025
‼️we are pleased to share the first work coming from my lab on biorxiv. Misregulation of the jasmonate signaling pathway leads to altered plant microbiota interaction and plant stress responses biorxiv.org/content/10.1... 1/n
biorxiv.org
Misregulation of the jasmonate signaling pathway leads to altered plant microbiota interaction and plant stress responses
The model plant Arabidopsis thaliana hosts diverse microbial communities collectively known as the microbiota. The plant microbiota is generally taxonomically structured. Some of the members can promo...
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Adam Hannan Parker @adamahp.bsky.social · 25/03/2025
does Arabidopsis thaliana cycle through generations faster in 24h light or is 16h optimal? struggling to find any papers on this .. #plantsci
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Adam Hannan Parker @adamahp.bsky.social · 13/03/2025
www.nature.com/articles/s41... #plantscience
nature.com
Salt stress activates the CDK8-AHL10-SUVH2/9 module to dynamically regulate salt tolerance in Arabidopsis - Nature Communications
The authors demonstrate that salt stress activates CDK8, which phosphorylates AHL10 and promotes its degradation. AHL10 is involved in recruiting SUVH2/9 to repress salt-responsive genes. The CDK8-AHL...
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Jake Harris @c-jake-harris.bsky.social · 12/02/2025
Very excited to share this new preprint from the lab (shorturl.at/l7lNq)! @hendersi.bsky.social si.bsky.social @camplantsci.bsky.social
shorturl.at
CRISPR targeting of H3K4me3 activates gene expression and unlocks centromeric crossover recombination in Arabidopsis
H3K4me3 is a fundamental and highly conserved chromatin mark across eukaryotes, playing a central role in many genome-related processes, including transcription, maintenance of cell identity, DNA dama...
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Adam Hannan Parker @adamahp.bsky.social · 15/02/2025
Cool work from Jacobsen and colleagues. Great to finally have published and public ROS1 Chip-Seq data ! #PlantScience www.nature.com/articles/s41...
nature.com
Histone H3 lysine 4 methylation recruits DNA demethylases to enforce gene expression in Arabidopsis - Nature Plants
This study revealed that targeting H3K4me3 via the H3K4 methyltransferase SDG2 activates gene expression and removes DNA methylation by recruiting DNA demethylases. Conversely, the removal of H3K4me3 ...
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Ian Henderson @hendersi.bsky.social · 02/01/2025
Centrophilic retrotransposon integration via CENH3 chromatin in Arabidopsis from Tetsuji Kakutani & colleagues - beautiful insights into control of transposon insertion into the centromeres www.nature.com/articles/s41...
nature.com
Centrophilic retrotransposon integration via CENH3 chromatin in Arabidopsis - Nature
An Arabidopsis long terminal repeat retrotransposon integrates de novo into regions occupied by centromere-specific histone variant, showing the impact of centromeric chromatin on transposable element...
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Tatsuya Nobori @tatsuyanobori.bsky.social · 27/12/2024
Transposon-triggered epigenetic chromatin dynamics modulate EFR-related pathogen response www.nature.com/articles/s41...
nature.com
Transposon-triggered epigenetic chromatin dynamics modulate EFR-related pathogen response - Nature Structural & Molecular Biology
Here, the authors show that an inverted-repeat transposon located next to the pattern recognition receptor ELONGATION FACTOR-TU RECEPTOR (EFR)-encoding gene in Arabidopsis controls chromatin organizat...
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Saima Shahid @psaima.bsky.social · 07/12/2024
A big congratulations to Dr @adamahp.bsky.social who passed his PhD viva! It was a pleasure to see Adam's excellent research accomplishments in plant epigenetic memory with @jurriaanton.bsky.social group, looking forward to reading papers from his super impressive thesis! @sheffieldpps.bsky.social
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Adam Hannan Parker @adamahp.bsky.social · 07/12/2024
Forgot to tag #PlantSciJobs #PlantScience #PhDPosition
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Adam Hannan Parker @adamahp.bsky.social · 07/12/2024
Exciting PhD project with @jurriaanton.bsky.social, @katiefield4.bsky.social, @psaima.bsky.social, @luketdunning.bsky.social. Ecological costs and benefits of stress-induced epigenetic change in plants! www.findaphd.com/phds/project...
findaphd.com
ACCE+ DLA programme - EpiPlasticity: exploring the ecological and evolutionary significance of epigenetic defence plasticity at University of Sheffield on FindAPhD.com
PhD Project - ACCE+ DLA programme - EpiPlasticity: exploring the ecological and evolutionary significance of epigenetic defence plasticity at University of Sheffield, listed on FindAPhD.com
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Adam Hannan Parker @adamahp.bsky.social · 05/12/2024
www.nature.com/articles/s41.... It appears this hasn't circulated on Bluesky yet - still missing some people here! Such a brilliant example of transposon domestication in plants, driven by environmental stress. #plantscience
nature.com
Retrotransposon-driven environmental regulation of FLC leads to adaptive response to herbicide - Nature Plants
This study reports the discovery of a retrotransposon insertion in the FLC gene conferring an environmentally dependent control mechanism mediated by DNA methylation that drives the adaptation of natu...
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