Shannon Barry

The working model of PopMYB4-PopSDG36 in Colletotrichum gloeosporioides defense.

PopMYB4 orchestrates disease resistance through H3K36me3‐mediated epigenetic activation of PopGSTU7 in poplars

📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
by Tan et al.

@WileyPlantSci

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...

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/...

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...

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/...

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

Thinking only of Rosalind Franklin today, and what was stolen from her (and so many other female scientists alongside her).

⚠️ 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...

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

NEWS & VIEWS: Balancing sweetness: regulatory insights into sugar accumulation in peach fruit (Saadia Bihmidine , Thu M Tran) doi.org/10.1093/plph... #PlantScience

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

Identifying and characterizing a missing peroxin—PEX8—in Arabidopsis thaliana (Gabrielle C Buck , Ashley D Weeks , Niamh E Ordner , Bonnie Bartel)

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

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...

Three back-to-back Salicylic Acid biosynthesis papers 1/3 www.nature.com/articles/s41...

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.

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

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...

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/...

Enhancing photosynthesis under salt stress via directed evolution in cyanobacteria url:https://academic.oup.com/plphys/article/doi/10.1093/plphys/kiaf209/8140131

website for USDA AFRI competitive grants. Frozen. No new awards or calls for research.

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...

A plant CLE peptide and its fungal mimic promote arbuscular mycorrhizal symbiosis via CRN-mediated ROS suppression | PNAS CLAVATA3/EMBRYO SURROUNDING REGION-related (CLE) peptides have emerged as key regulators of plant–microbe interactions, including arbuscular mycorr...

www.pnas.org/doi/10.1073/...

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)...

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/...

The OXIDATIVE SIGNAL-INDUCIBLE1 kinase regulates plant immunity by linking microbial pattern–induced reactive oxygen species burst to MAP kinase activation A reactive oxygen species (ROS)–activated kinase, OXIDATIVE SIGNAL-INDUCIBLE1, participates in pattern recognition receptor complexes and regulates plant i

academic.oup.com/plcell/artic...

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.

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...

Structure-guided discovery of viral proteins that inhibit host immunity: Cell www.cell.com/cell/fulltex...

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...

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

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 ...

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...

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

Awesome work! Congratulations!

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...

Model illustrating how the phytoplasma effector SAP54 facilitates leaf colonization by leafhopper vectors, which are essential for phytoplasma transmission and spread.

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

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.

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

Repairing a deleterious domestication variant in a floral regulator gene of tomato by base editing - Nature Genetics A deleterious mutation in the tomato transcription factor SSP2 was enriched during domestication. Repairing the deleterious mutation in cultivated tomato by base editing leads to compact growth and ea...

Very happy to see our work on deleterious mutations in #tomato published in @naturegenet.bsky.social 🧬🌱🍅! We identify deleterious mutations that were enriched during #domestication and apply #CRISPR to repair a mutation in cultivated tomato. #genetics #plantscience

www.nature.com/articles/s41...

Seed tuber microbiome can predict growth potential of potato varieties - Nature Microbiology Time-resolved drone imaging of potato crop development and seed tuber microbiome data can be used to predict potato vigour, or growth potential, in next-season crops in trial fields.

Seed tuber microbiome can predict growth potential of potato varieties www.nature.com/articles/s41...

Maize TIR-only Proteins ZmTIR1 and ZmTIR2, but not ZmTIR3 Confer Auto-active Hypersensitive Response Likely by Forming Condensation https://www.biorxiv.org/content/10.1101/2024.12.26.630462v1