Shannon Barry
@shanbarry.bsky.social
Ph.D. candidate at UF | plant immunity & ROS signaling research | 1st gen
Reposted by Shannon Barry
Thrilled to have our paper out in @science.org. Cell division guides plant cell wall formation. Does the reverse hold? We show that bimodal pectin methylesterification, via PME5 mRNA nuclear sequestration, influences plant cell division and cell plate orientation. www.science.org/doi/10.1126/...
Cell wall patterning regulates plant stem cell dynamics
The plant cell wall regulates development through spatiotemporal modulation of its chemical and mechanical properties. Pectin methylesterification is recognized as a rheological switch controlling wal...
www.science.org
December 6, 2025 at 10:11 AM
Thrilled to have our paper out in @science.org. Cell division guides plant cell wall formation. Does the reverse hold? We show that bimodal pectin methylesterification, via PME5 mRNA nuclear sequestration, influences plant cell division and cell plate orientation. www.science.org/doi/10.1126/...
Reposted by Shannon Barry
So happy to see this work finally online!
In this Research Review, I discuss the emerging roles of H3K27me3 writers (the enzymes that lay it down) and erasers (the enzymes that remove it) in controlling plant adaptation 🌿🌡️❄️🦠
nph.onlinelibrary.wiley.com/doi/10.1111/...
In this Research Review, I discuss the emerging roles of H3K27me3 writers (the enzymes that lay it down) and erasers (the enzymes that remove it) in controlling plant adaptation 🌿🌡️❄️🦠
nph.onlinelibrary.wiley.com/doi/10.1111/...
Finding balance: the dynamic interplay between H3K27me3 writers and erasers in regulating environmental plasticity and memory
Subject to an ever-changing world, plants must respond to harmful conditions and environmental fluctuations. Their evolutionary success can be attributed to their plasticity in both perceiving and in...
nph.onlinelibrary.wiley.com
December 4, 2025 at 11:02 AM
So happy to see this work finally online!
In this Research Review, I discuss the emerging roles of H3K27me3 writers (the enzymes that lay it down) and erasers (the enzymes that remove it) in controlling plant adaptation 🌿🌡️❄️🦠
nph.onlinelibrary.wiley.com/doi/10.1111/...
In this Research Review, I discuss the emerging roles of H3K27me3 writers (the enzymes that lay it down) and erasers (the enzymes that remove it) in controlling plant adaptation 🌿🌡️❄️🦠
nph.onlinelibrary.wiley.com/doi/10.1111/...
Reposted by Shannon Barry
Thinking only of Rosalind Franklin today, and what was stolen from her (and so many other female scientists alongside her).
Rosalind Franklin and the damage of gender harassment
Spurred by a recent report on sexual harassment in academia, our columnist revisits a historical case and reflects on what has changed—and what hasn’t
www.science.org
November 7, 2025 at 7:58 PM
Thinking only of Rosalind Franklin today, and what was stolen from her (and so many other female scientists alongside her).
Reposted by Shannon Barry
⚠️ Alert! AFRI RFP Deadlines have been EXTENDED! Deadlines for submitting proposals for the AFRI’s Competitive Grants Program Foundational and Applied Science (FAS) Program (USDA-NIFA-AFRI-011134) will be shared after the government shutdown ends. More info 👉 www.nifa.usda.gov/grants/progr...
AFRI Deadlines
The Agriculture and Food Research Initiative has numerous program area priorities in the three Requests for Applications (RFAs) posted each year. Each program a
www.nifa.usda.gov
November 5, 2025 at 10:18 PM
⚠️ Alert! AFRI RFP Deadlines have been EXTENDED! Deadlines for submitting proposals for the AFRI’s Competitive Grants Program Foundational and Applied Science (FAS) Program (USDA-NIFA-AFRI-011134) will be shared after the government shutdown ends. More info 👉 www.nifa.usda.gov/grants/progr...
Reposted by Shannon Barry
NEWS & VIEWS: Balancing sweetness: regulatory insights into sugar accumulation in peach fruit (Saadia Bihmidine , Thu M Tran) doi.org/10.1093/plph... #PlantScience
Balancing sweetness: Regulatory insights into sugar accumulation in peach fruit
Sugars are essential to plant metabolism, serving as energy sources, metabolic intermediates, and signaling molecules during the development and ripening o
doi.org
August 18, 2025 at 9:10 PM
NEWS & VIEWS: Balancing sweetness: regulatory insights into sugar accumulation in peach fruit (Saadia Bihmidine , Thu M Tran) doi.org/10.1093/plph... #PlantScience
Reposted by Shannon Barry
A nematode effector hijacks a host RBR-type E3 ubiquitin ligase to regulate NRC4 receptor-mediated plant immunity and facilitate parasitism (Xin Qin , Jiarong Yu , Wenjun Hu , et al) doi.org/10.1093/plce... #PlantScience
doi.org
August 6, 2025 at 12:58 PM
A nematode effector hijacks a host RBR-type E3 ubiquitin ligase to regulate NRC4 receptor-mediated plant immunity and facilitate parasitism (Xin Qin , Jiarong Yu , Wenjun Hu , et al) doi.org/10.1093/plce... #PlantScience
Reposted by Shannon Barry
Identifying and characterizing a missing peroxin—PEX8—in Arabidopsis thaliana (Gabrielle C Buck , Ashley D Weeks , Niamh E Ordner , Bonnie Bartel)
doi.org
August 4, 2025 at 1:12 PM
Identifying and characterizing a missing peroxin—PEX8—in Arabidopsis thaliana (Gabrielle C Buck , Ashley D Weeks , Niamh E Ordner , Bonnie Bartel)
Reposted by Shannon Barry
2️⃣ PhD Positions in the lab:
📢 #1: Microbiome Diversity and Evolution in Leafhoppers Across Canada
📢 #2: Morphological Changes in Plant Roots Induced by Plasmodiophorid Effectors
📨 To apply submit :
* A cover letter
* Your curriculum vitae
* Academic transcripts
Applications: edelab2024@gmail.com
📢 #1: Microbiome Diversity and Evolution in Leafhoppers Across Canada
📢 #2: Morphological Changes in Plant Roots Induced by Plasmodiophorid Effectors
📨 To apply submit :
* A cover letter
* Your curriculum vitae
* Academic transcripts
Applications: edelab2024@gmail.com
July 31, 2025 at 1:52 AM
2️⃣ PhD Positions in the lab:
📢 #1: Microbiome Diversity and Evolution in Leafhoppers Across Canada
📢 #2: Morphological Changes in Plant Roots Induced by Plasmodiophorid Effectors
📨 To apply submit :
* A cover letter
* Your curriculum vitae
* Academic transcripts
Applications: edelab2024@gmail.com
📢 #1: Microbiome Diversity and Evolution in Leafhoppers Across Canada
📢 #2: Morphological Changes in Plant Roots Induced by Plasmodiophorid Effectors
📨 To apply submit :
* A cover letter
* Your curriculum vitae
* Academic transcripts
Applications: edelab2024@gmail.com
Reposted by Shannon Barry
Three back-to-back Salicylic Acid biosynthesis papers 1/3 www.nature.com/articles/s41...
Three-step biosynthesis of salicylic acid from benzoyl-CoA in plants - Nature
The salicylic acid (SA) biosynthesis pathway—involving ligation of benzoyl coenzyme A and benzyl alcohol to give benzyl benzoate; hydroxylation of benzyl benzoate to give benzyl salicylate; and cleava...
www.nature.com
July 23, 2025 at 3:50 PM
Three back-to-back Salicylic Acid biosynthesis papers 1/3 www.nature.com/articles/s41...
Reposted by Shannon Barry
We need to talk about mobile RNAs...
SNP-based analysis of transcriptomic datasets are subject to technical noise, incomplete genome assemblies and pseudoheterozygosity so it seems like we don't know as much as we thought we knew.
#PlantScience
@johninnescentre.bsky.social
SNP-based analysis of transcriptomic datasets are subject to technical noise, incomplete genome assemblies and pseudoheterozygosity so it seems like we don't know as much as we thought we knew.
#PlantScience
@johninnescentre.bsky.social
Re-analysis of mobile mRNA datasets raises questions about the extent of long-distance mRNA communication - Nature Plants
This study reveals that a substantial number of transcripts that are currently annotated as graft-mobile lack statistical support from available RNA-seq data.
doi.org
April 16, 2025 at 11:47 AM
We need to talk about mobile RNAs...
SNP-based analysis of transcriptomic datasets are subject to technical noise, incomplete genome assemblies and pseudoheterozygosity so it seems like we don't know as much as we thought we knew.
#PlantScience
@johninnescentre.bsky.social
SNP-based analysis of transcriptomic datasets are subject to technical noise, incomplete genome assemblies and pseudoheterozygosity so it seems like we don't know as much as we thought we knew.
#PlantScience
@johninnescentre.bsky.social
Reposted by Shannon Barry
I am happy to see exciting this collaboration between the Sadanandom lab (DU) and Bennett lab (UoN) finally published!
Redox-regulated Aux/IAA multimerization modulates auxin responses | Science www.science.org/doi/10.1126/...
Redox-regulated Aux/IAA multimerization modulates auxin responses | Science www.science.org/doi/10.1126/...
Redox-regulated Aux/IAA multimerization modulates auxin responses
Reactive oxygen species function as key signals in plant adaptation to environmental stresses like drought. Roots respond to transient water unavailability by temporarily ceasing branching through the...
www.science.org
June 13, 2025 at 12:37 PM
I am happy to see exciting this collaboration between the Sadanandom lab (DU) and Bennett lab (UoN) finally published!
Redox-regulated Aux/IAA multimerization modulates auxin responses | Science www.science.org/doi/10.1126/...
Redox-regulated Aux/IAA multimerization modulates auxin responses | Science www.science.org/doi/10.1126/...
Enhancing photosynthesis under salt stress via directed evolution in cyanobacteria url:https://academic.oup.com/plphys/article/doi/10.1093/plphys/kiaf209/8140131
May 21, 2025 at 9:13 PM
Enhancing photosynthesis under salt stress via directed evolution in cyanobacteria url:https://academic.oup.com/plphys/article/doi/10.1093/plphys/kiaf209/8140131
Reposted by Shannon Barry
I haven't heard of anyone getting new USDA grants and the competitive USDA AFRI program has no new calls for research proposal. I assume they are checking to see if they align with "agency priorities". Way to kill important agricultural research. www.nifa.usda.gov/grants/fundi...
April 29, 2025 at 12:27 AM
I haven't heard of anyone getting new USDA grants and the competitive USDA AFRI program has no new calls for research proposal. I assume they are checking to see if they align with "agency priorities". Way to kill important agricultural research. www.nifa.usda.gov/grants/fundi...
Reposted by Shannon Barry
Reposted by Shannon Barry
Oh yes. This is new. Non-NLR and NLR pair for immune sensor and executor!
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
A wheat tandem kinase and NLR pair confers resistance to multiple fungal pathogens
Tandem kinase proteins underlie the innate immune systems of cereal plants, but how they initiate plant immune responses remains unclear. This report identifies wheat protein wheat tandem NBD 1 (WTN1)...
www.science.org
March 28, 2025 at 1:07 AM
Oh yes. This is new. Non-NLR and NLR pair for immune sensor and executor!
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Reposted by Shannon Barry
Reposted by Shannon Barry
New Article: "ATG8ylation of vacuolar membrane protects plants against cell wall damage" rdcu.be/d8Y3S
ATG8ylation of the tonoplast, triggered by cell wall damage, acts as a vital vacuolar quality control mechanism that safeguards vacuolar integrity and ensures cell survival under stress.
ATG8ylation of the tonoplast, triggered by cell wall damage, acts as a vital vacuolar quality control mechanism that safeguards vacuolar integrity and ensures cell survival under stress.
February 7, 2025 at 11:56 AM
New Article: "ATG8ylation of vacuolar membrane protects plants against cell wall damage" rdcu.be/d8Y3S
ATG8ylation of the tonoplast, triggered by cell wall damage, acts as a vital vacuolar quality control mechanism that safeguards vacuolar integrity and ensures cell survival under stress.
ATG8ylation of the tonoplast, triggered by cell wall damage, acts as a vital vacuolar quality control mechanism that safeguards vacuolar integrity and ensures cell survival under stress.
Reposted by Shannon Barry
Structure-guided discovery of viral proteins that inhibit host immunity: Cell www.cell.com/cell/fulltex...
Structure-guided discovery of viral proteins that inhibit host immunity
Large-scale, structure-guided computational pipeline sifts through millions of phage
proteins to identify those that bind and antagonize host immune proteins. Detected
proteins are shown to inhibit no...
www.cell.com
January 23, 2025 at 8:29 PM
Structure-guided discovery of viral proteins that inhibit host immunity: Cell www.cell.com/cell/fulltex...
Reposted by Shannon Barry
Most plants can`t handle salt, but have evolved strategies to survive in it. How do they do it?🌱🧪
Excited to share some of our first insights using a new cryoelemental imaging technique to answer these questions at the subcellular scale!(1/8)
www.nature.com/articles/s41... @nature.com #PlantScience
Excited to share some of our first insights using a new cryoelemental imaging technique to answer these questions at the subcellular scale!(1/8)
www.nature.com/articles/s41... @nature.com #PlantScience
Elemental cryo-imaging reveals SOS1-dependent vacuolar sodium accumulation - Nature
This study demonstrates that cryo nanoscale secondary ion mass spectrometry (CryoNanoSIMS) enables direct multi-elemental imaging at subcellular resolution of macro- and micronutrients or trace elemen...
www.nature.com
January 16, 2025 at 2:51 PM
Most plants can`t handle salt, but have evolved strategies to survive in it. How do they do it?🌱🧪
Excited to share some of our first insights using a new cryoelemental imaging technique to answer these questions at the subcellular scale!(1/8)
www.nature.com/articles/s41... @nature.com #PlantScience
Excited to share some of our first insights using a new cryoelemental imaging technique to answer these questions at the subcellular scale!(1/8)
www.nature.com/articles/s41... @nature.com #PlantScience
Reposted by Shannon Barry
Thrilled to share our work lead by Di Fino in great collaboration with @Panosmoschou,@Hamann_lab, @GreenMechanobio, @RichardSmithLab published @Dev_Cell: Developmental Cell www.cell.com/developmenta...
Cellular damage triggers mechano-chemical control of cell wall dynamics and patterned cell divisions in plant healing
Di Fino et al. analyzed the biomechanical properties of the cell wall in the Arabidopsis
root and found that xylem pole pericyclic cell walls are more flexible than outer
cell walls. This flexibility ...
www.cell.com
January 13, 2025 at 4:20 PM
Thrilled to share our work lead by Di Fino in great collaboration with @Panosmoschou,@Hamann_lab, @GreenMechanobio, @RichardSmithLab published @Dev_Cell: Developmental Cell www.cell.com/developmenta...
Reposted by Shannon Barry
New Article: "Redox modification of m6A demethylase SlALKBH2 in tomato regulates fruit ripening" rdcu.be/d55UR
With Research Briefing rdcu.be/d55U8
This redox modification affects SlALKBH2 protein stability, thereby modulating its function in fruit ripening. #PlantScience
With Research Briefing rdcu.be/d55U8
This redox modification affects SlALKBH2 protein stability, thereby modulating its function in fruit ripening. #PlantScience
January 13, 2025 at 12:33 PM
New Article: "Redox modification of m6A demethylase SlALKBH2 in tomato regulates fruit ripening" rdcu.be/d55UR
With Research Briefing rdcu.be/d55U8
This redox modification affects SlALKBH2 protein stability, thereby modulating its function in fruit ripening. #PlantScience
With Research Briefing rdcu.be/d55U8
This redox modification affects SlALKBH2 protein stability, thereby modulating its function in fruit ripening. #PlantScience
Reposted by Shannon Barry
New year, new paper! Now published in @nature.com. We identified and characterised diverse immune cell states in plants under pathogen attack. My postdoc work in the Ecker lab at @salkinstitute.bsky.social. A thread (0/n)
#PlantScience
www.nature.com/articles/s41...
#PlantScience
www.nature.com/articles/s41...
January 8, 2025 at 4:27 PM
New year, new paper! Now published in @nature.com. We identified and characterised diverse immune cell states in plants under pathogen attack. My postdoc work in the Ecker lab at @salkinstitute.bsky.social. A thread (0/n)
#PlantScience
www.nature.com/articles/s41...
#PlantScience
www.nature.com/articles/s41...
Reposted by Shannon Barry
An effector molecule released by a phytoplasma introduced to the host plant by male leafhoppers hijacks a host tissue developmental pathway to make the male-colonized infected plant more attractive to female leafhoppers. Kind of a weird inverse #Hamilton-Zuk model?
elifesciences.org/articles/98992
elifesciences.org/articles/98992
January 8, 2025 at 7:32 PM
An effector molecule released by a phytoplasma introduced to the host plant by male leafhoppers hijacks a host tissue developmental pathway to make the male-colonized infected plant more attractive to female leafhoppers. Kind of a weird inverse #Hamilton-Zuk model?
elifesciences.org/articles/98992
elifesciences.org/articles/98992
Reposted by Shannon Barry
N&V about papers in @ScienceMagazine: "TIR-mediated immunity: Small molecules unlock broad-spectrum plant resistance" rdcu.be/d5riU
... have elucidated the mechanism by which TIR NADase-derived 2′cADPR and pRib-AMP/ADP activate EDS1–PAD4–ADR1 (EPA) signalling, thereby inducing immune responses.
... have elucidated the mechanism by which TIR NADase-derived 2′cADPR and pRib-AMP/ADP activate EDS1–PAD4–ADR1 (EPA) signalling, thereby inducing immune responses.
January 6, 2025 at 2:32 PM
N&V about papers in @ScienceMagazine: "TIR-mediated immunity: Small molecules unlock broad-spectrum plant resistance" rdcu.be/d5riU
... have elucidated the mechanism by which TIR NADase-derived 2′cADPR and pRib-AMP/ADP activate EDS1–PAD4–ADR1 (EPA) signalling, thereby inducing immune responses.
... have elucidated the mechanism by which TIR NADase-derived 2′cADPR and pRib-AMP/ADP activate EDS1–PAD4–ADR1 (EPA) signalling, thereby inducing immune responses.
Reposted by Shannon Barry
Pyrenoids in land plants, machinery largely conserved with green algae.
For context, as shown in this paper 👉 www.pnas.org/doi/pdf/10.1... hornwort pyrenoids evolved and were lost multiple times during the past 100 million years. #PlantScience
For context, as shown in this paper 👉 www.pnas.org/doi/pdf/10.1... hornwort pyrenoids evolved and were lost multiple times during the past 100 million years. #PlantScience
January 6, 2025 at 2:39 PM
Pyrenoids in land plants, machinery largely conserved with green algae.
For context, as shown in this paper 👉 www.pnas.org/doi/pdf/10.1... hornwort pyrenoids evolved and were lost multiple times during the past 100 million years. #PlantScience
For context, as shown in this paper 👉 www.pnas.org/doi/pdf/10.1... hornwort pyrenoids evolved and were lost multiple times during the past 100 million years. #PlantScience