Sjon Hartman
@hartman-plantlab.com
Plant Biologist 🌱 Junior Professor of Plant Environmental Signalling & Development 🧬🔬 Studying Flooding Tolerance & Epigenetic Memory 🌊 at @biologyunifreiburg.bsky.social @uni-freiburg.de @cibss.bsky.social
www.hartman-plantlab.com
www.hartman-plantlab.com
Reposted by Sjon Hartman
‘Deathly silent’: two out of three corals in world heritage-listed Ningaloo reef have been killed, scientists confirm
- by @readfearn.bsky.social
www.theguardian.com/environment/...
- by @readfearn.bsky.social
www.theguardian.com/environment/...
‘Deathly silent’: two out of three corals in world heritage-listed Ningaloo reef have been killed, scientists confirm
One expert says he is ‘starting to visualise the point where all we have left of corals and reefs is memories’
www.theguardian.com
November 19, 2025 at 7:40 AM
‘Deathly silent’: two out of three corals in world heritage-listed Ningaloo reef have been killed, scientists confirm
- by @readfearn.bsky.social
www.theguardian.com/environment/...
- by @readfearn.bsky.social
www.theguardian.com/environment/...
Reposted by Sjon Hartman
Near-atomistic simulations reveal the molecular principles that control chromatin structure and phase separation https://www.biorxiv.org/content/10.1101/2025.11.17.688899v1
November 18, 2025 at 5:47 AM
Near-atomistic simulations reveal the molecular principles that control chromatin structure and phase separation https://www.biorxiv.org/content/10.1101/2025.11.17.688899v1
Reposted by Sjon Hartman
🍇 From Genome Biology: Grapevine clones show stable, inherited methylation across centuries. A phased genome framework reveals long-term epigenetic patterns in Cabernet lineages. (Noé Cochetel, Amanda M. Vondras, Rosa Figueroa-Balderas, Dario Cantu)
▶️ link.springer.com/article/10.1...
#PlantScience
▶️ link.springer.com/article/10.1...
#PlantScience
Phased epigenomics and methylation inheritance in a historical Vitis vinifera hybrid - Genome Biology
Background Epigenetic modifications, such as DNA methylation, regulate transcription and influence key biological traits. While many efforts were made to understand their stability in annual crops, th...
link.springer.com
November 18, 2025 at 7:11 PM
🍇 From Genome Biology: Grapevine clones show stable, inherited methylation across centuries. A phased genome framework reveals long-term epigenetic patterns in Cabernet lineages. (Noé Cochetel, Amanda M. Vondras, Rosa Figueroa-Balderas, Dario Cantu)
▶️ link.springer.com/article/10.1...
#PlantScience
▶️ link.springer.com/article/10.1...
#PlantScience
Reposted by Sjon Hartman
Functional memory of drought affects leaf chemical defenses and microbial interactions in aspen https://www.biorxiv.org/content/10.1101/2025.11.17.688914v1
November 18, 2025 at 11:05 AM
Functional memory of drought affects leaf chemical defenses and microbial interactions in aspen https://www.biorxiv.org/content/10.1101/2025.11.17.688914v1
Reposted by Sjon Hartman
Hi passionate 🌱🔬 the #MBP2026 by @plantsciencedbg.bsky.social is entering its last registration week. Take some time and ASAP 🏄♀️ to: www.pflanzen-molekularbiologie.de/conference-m... . Please repost, like, & spread the word.
November 17, 2025 at 7:09 AM
Hi passionate 🌱🔬 the #MBP2026 by @plantsciencedbg.bsky.social is entering its last registration week. Take some time and ASAP 🏄♀️ to: www.pflanzen-molekularbiologie.de/conference-m... . Please repost, like, & spread the word.
Reposted by Sjon Hartman
Latest research from the Bäurle lab on the function of our favourite memory TF - HSFA2!
Promoter and domain swap analysis delineates heat stress memory-specific determinants of heat shock factor HSFA2
The function of the transcription factor HSFA2 in heat-stress induced transcriptional memory maps to functional domains within the protein.
academic.oup.com
November 16, 2025 at 8:57 AM
Latest research from the Bäurle lab on the function of our favourite memory TF - HSFA2!
Reposted by Sjon Hartman
How do plants elongate in shade? This morning @scourbier.bsky.social (from @plantphotobiology.bsky.social) revealed how shade boosts TOR activity and how TOR and auxin signalling tightly interact to drive hypocotyl growth in Arabidopsis. A talk that filled the room!
📅 Nov 14 | 🕥 10:15
#PlantScience
📅 Nov 14 | 🕥 10:15
#PlantScience
November 14, 2025 at 5:50 PM
How do plants elongate in shade? This morning @scourbier.bsky.social (from @plantphotobiology.bsky.social) revealed how shade boosts TOR activity and how TOR and auxin signalling tightly interact to drive hypocotyl growth in Arabidopsis. A talk that filled the room!
📅 Nov 14 | 🕥 10:15
#PlantScience
📅 Nov 14 | 🕥 10:15
#PlantScience
Reposted by Sjon Hartman
Targeted editing of H3K27me3 reveals its significance in the photoperiodic control of FLOWERING LOCUS T (Jingyun Lu, Jie Pan, Xiaoyi Li, Huairen Zhang, Ruitian Song, Mande Xue, Jie Li, Qian Liu, Danhua Jiang) doi.org/10.1093/plph... #PlantScience @aspbofficial
Targeted editing of H3K27me3 reveals its significance in the photoperiodic control of FLOWERING LOCUS T
The repressive histone modification H3K27me3 plays a causal role in determining gene expression patterns.
doi.org
November 14, 2025 at 6:31 PM
Targeted editing of H3K27me3 reveals its significance in the photoperiodic control of FLOWERING LOCUS T (Jingyun Lu, Jie Pan, Xiaoyi Li, Huairen Zhang, Ruitian Song, Mande Xue, Jie Li, Qian Liu, Danhua Jiang) doi.org/10.1093/plph... #PlantScience @aspbofficial
Reposted by Sjon Hartman
And Freiburg is gorgeous, friendly, and fun. Not to mention full of excellent plant scientists 💚
Stuck in the US as a postdoc due to the current political nightmare? Consider to join us in Freiburg @dompsfr.bsky.social @biologyunifreiburg.bsky.social #plantscience
If you know postdocs in the US whose work is restricted or becoming difficult, there are new fellowship possibilities in the south of Germany. Please, forward this information to them:
uni-freiburg.de/frias/call-f...
Our lab in Freiburg can also serve as a host — happy to discuss options.
uni-freiburg.de/frias/call-f...
Our lab in Freiburg can also serve as a host — happy to discuss options.
November 13, 2025 at 9:37 PM
And Freiburg is gorgeous, friendly, and fun. Not to mention full of excellent plant scientists 💚
Reposted by Sjon Hartman
Reposted by Sjon Hartman
Our University @uni-freiburg.de with @friasunifreiburg.bsky.social has also just lunched this initiative for rescuing ECR scientists in needs. uni-freiburg.de/frias/call-f.... Our lab can host a 🌱 fellow.
November 13, 2025 at 4:40 PM
Our University @uni-freiburg.de with @friasunifreiburg.bsky.social has also just lunched this initiative for rescuing ECR scientists in needs. uni-freiburg.de/frias/call-f.... Our lab can host a 🌱 fellow.
Stuck in the US as a postdoc due to the current political nightmare? Consider to join us in Freiburg @dompsfr.bsky.social @biologyunifreiburg.bsky.social #plantscience
If you know postdocs in the US whose work is restricted or becoming difficult, there are new fellowship possibilities in the south of Germany. Please, forward this information to them:
uni-freiburg.de/frias/call-f...
Our lab in Freiburg can also serve as a host — happy to discuss options.
uni-freiburg.de/frias/call-f...
Our lab in Freiburg can also serve as a host — happy to discuss options.
Call for Applications: Early Career Rescue Fellowship – Freiburg Institute for Advanced Studies
uni-freiburg.de
November 13, 2025 at 4:28 PM
Stuck in the US as a postdoc due to the current political nightmare? Consider to join us in Freiburg @dompsfr.bsky.social @biologyunifreiburg.bsky.social #plantscience
Reposted by Sjon Hartman
🌿 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
🧬 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
November 11, 2025 at 7:19 PM
🌿 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
🧬 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
Reposted by Sjon Hartman
We are beyond excited to reveal the full line-up for our Environmental Signaling in Plants summer school 2026!
Registration is now open here eps.sites.uu.nl - we look forward to seeing you in Utrecht on 24th-26th August!
Registration is now open here eps.sites.uu.nl - we look forward to seeing you in Utrecht on 24th-26th August!
November 11, 2025 at 3:59 PM
We are beyond excited to reveal the full line-up for our Environmental Signaling in Plants summer school 2026!
Registration is now open here eps.sites.uu.nl - we look forward to seeing you in Utrecht on 24th-26th August!
Registration is now open here eps.sites.uu.nl - we look forward to seeing you in Utrecht on 24th-26th August!
Reposted by Sjon Hartman
Correlation Vs. Causation
November 11, 2025 at 2:44 PM
Correlation Vs. Causation
Reposted by Sjon Hartman
Few Plant science programmes are left in the UK and they are critical to train the next generation.
This move by @uniofnottingham.bsky.social goes against recommendations made in the recent PS Education manifesto. Big mistake! Sign the petition! nph.onlinelibrary.wiley.com/doi/10.1002/...
This move by @uniofnottingham.bsky.social goes against recommendations made in the recent PS Education manifesto. Big mistake! Sign the petition! nph.onlinelibrary.wiley.com/doi/10.1002/...
November 9, 2025 at 9:30 AM
Few Plant science programmes are left in the UK and they are critical to train the next generation.
This move by @uniofnottingham.bsky.social goes against recommendations made in the recent PS Education manifesto. Big mistake! Sign the petition! nph.onlinelibrary.wiley.com/doi/10.1002/...
This move by @uniofnottingham.bsky.social goes against recommendations made in the recent PS Education manifesto. Big mistake! Sign the petition! nph.onlinelibrary.wiley.com/doi/10.1002/...
Reposted by Sjon Hartman
Reconsider the potential suspension of Plant Biology Courses at UoN - Sign the Petition! c.org/p5jy2GXHcX via
@UKChange
@UKChange
Sign the Petition
Reconsider the potential suspension of Plant Biology Courses at UoN
c.org
November 8, 2025 at 9:48 PM
Reconsider the potential suspension of Plant Biology Courses at UoN - Sign the Petition! c.org/p5jy2GXHcX via
@UKChange
@UKChange
Reposted by Sjon Hartman
Hydrogen sulfide modulates plant hypoxic responses through the persulfidation of Plant Cysteine Oxidases https://www.biorxiv.org/content/10.1101/2025.11.05.686772v1
November 6, 2025 at 11:03 PM
Hydrogen sulfide modulates plant hypoxic responses through the persulfidation of Plant Cysteine Oxidases https://www.biorxiv.org/content/10.1101/2025.11.05.686772v1
Reposted by Sjon Hartman
How do roots sense phosphate and iron? Discover the PDR2–LPR1 pathway with @cnaumann123.bsky.social (from @ipbhalle.bsky.social), and see how it links nutrient sensing to ER quality control and autophagy. Learn how roots adapt in Pi-poor, Fe-rich soils!
📅 Nov 7 | 🕥 10:15 | 📍 KS 00.009
#PlantScience
📅 Nov 7 | 🕥 10:15 | 📍 KS 00.009
#PlantScience
November 7, 2025 at 12:14 PM
How do roots sense phosphate and iron? Discover the PDR2–LPR1 pathway with @cnaumann123.bsky.social (from @ipbhalle.bsky.social), and see how it links nutrient sensing to ER quality control and autophagy. Learn how roots adapt in Pi-poor, Fe-rich soils!
📅 Nov 7 | 🕥 10:15 | 📍 KS 00.009
#PlantScience
📅 Nov 7 | 🕥 10:15 | 📍 KS 00.009
#PlantScience
Reposted by Sjon Hartman
How is epigenetic information inherited? We found that CDCA7 proteins are critical players in the inheritance of DNA methylation at CG sites in plants, and this is true both in the lab and in the wild. How does this work? 🧵👇
New paper! Work led by @p-bourguet.bsky.social and Frédéric Berger at the GMI of the @oeaw.bsky.social and @esasaki007.bsky.social identified how protein CDCA7 helps plants stably maintain epigenetic modifications across generations.
Read more: www.oeaw.ac.at/gmi/detail/n...
Read more: www.oeaw.ac.at/gmi/detail/n...
November 7, 2025 at 5:05 PM
How is epigenetic information inherited? We found that CDCA7 proteins are critical players in the inheritance of DNA methylation at CG sites in plants, and this is true both in the lab and in the wild. How does this work? 🧵👇
Reposted by Sjon Hartman
Interested in learning about the latest and greatest research in how plants respond to excess salt, too little or too much water? Come to the GRC in Salt and Water Stress in Switzerland. Lots of opportunities for all career levels. www.grc.org/salt-and-wat.... Please repost!
2026 Salt and Water Stress in Plants Conference GRC
The 2026 Gordon Research Conference on Salt and Water Stress in Plants will be held in Les Diablerets, Vaud (fr) Switzerland. Apply today to reserve your spot.
www.grc.org
November 6, 2025 at 1:06 AM
Interested in learning about the latest and greatest research in how plants respond to excess salt, too little or too much water? Come to the GRC in Salt and Water Stress in Switzerland. Lots of opportunities for all career levels. www.grc.org/salt-and-wat.... Please repost!
Reposted by Sjon Hartman
Reposted by Sjon Hartman
Next we targeted a ‘useful’ gene, namely the plant resistance gene, SNC1. We show by modifying the epigenome at this single locus, you can generate plants with enhanced resistance to pathogens. (big thanks to @jurriaanton.bsky.social group for getting us set up with this assay!)
November 5, 2025 at 9:30 PM
Next we targeted a ‘useful’ gene, namely the plant resistance gene, SNC1. We show by modifying the epigenome at this single locus, you can generate plants with enhanced resistance to pathogens. (big thanks to @jurriaanton.bsky.social group for getting us set up with this assay!)
Reposted by Sjon Hartman
Very excited to share our work published in Nature Comms last week! Here we describe a range of cool things that can be done once you have the power to control deposition of H3K4me3…
rdcu.be/eNEf4
A short thread:
rdcu.be/eNEf4
A short thread:
CRISPR targeting of H3K4me3 activates gene expression and unlocks centromere-proximal crossover recombination in Arabidopsis
Nature Communications - Binenbaum et al. demonstrate that precise CRISPR-based targeting of a key chromatin mark (H3K4me3) can switch on genes, boost disease resistance, and unlock meiotic...
rdcu.be
November 5, 2025 at 9:30 PM
Very excited to share our work published in Nature Comms last week! Here we describe a range of cool things that can be done once you have the power to control deposition of H3K4me3…
rdcu.be/eNEf4
A short thread:
rdcu.be/eNEf4
A short thread:
Reposted by Sjon Hartman
Functional Characterization of Target of Rapamycin (TOR) Signalling in Physcomitrella https://www.biorxiv.org/content/10.1101/2025.11.04.686496v1
November 5, 2025 at 7:03 PM
Functional Characterization of Target of Rapamycin (TOR) Signalling in Physcomitrella https://www.biorxiv.org/content/10.1101/2025.11.04.686496v1