Ziv Spiegelman
@zivirus.bsky.social
Plant virologist, ARO, Volcani Institute, Israel. Plant-virus interaction, viral movement, resistance-breaking viruses
Reposted by Ziv Spiegelman
Florigen activation complex forms via multifaceted assembly in Arabidopsis
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Florigen activation complex forms via multifaceted assembly in Arabidopsis - Nature
In flowering plants, DNA–FD–14-3-3 recruits FT to the florigen activation complex both through DNA–FT interactions and by reducing liquid phase condensation of FD protein, which promotes dimerization,...
www.nature.com
November 13, 2025 at 1:48 AM
Florigen activation complex forms via multifaceted assembly in Arabidopsis
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Ziv Spiegelman
Such a cool pre-print on making sentinel plants - so much potential!
Bioluminescent sentinel plants enable autonomous diagnostics of viral infections
www.biorxiv.org/content/10.1...
Bioluminescent sentinel plants enable autonomous diagnostics of viral infections
www.biorxiv.org/content/10.1...
Bioluminescent sentinel plants enable autonomous diagnostics of viral infections
Plants engineered with synthetic genetic programs can transform how we monitor and manage the extension of crop pests and diseases. Here, we establish a bioluminescent platform in Nicotiana benthamian...
www.biorxiv.org
November 12, 2025 at 3:55 AM
Such a cool pre-print on making sentinel plants - so much potential!
Bioluminescent sentinel plants enable autonomous diagnostics of viral infections
www.biorxiv.org/content/10.1...
Bioluminescent sentinel plants enable autonomous diagnostics of viral infections
www.biorxiv.org/content/10.1...
Reposted by Ziv Spiegelman
Robust branch patterning in moss shoots via symplasmic auxin diffusion CurrentBiology
Robust branch patterning in moss shoots via symplasmic auxin diffusion
Abitbol-Spangaro et al. show that a diffusion-based model of auxin movement accounts for shoot branching patterns in a moss. The model predicts branch distribution changes caused by altered callose-dependent cell-to-cell permeability and reveals how shoot geometry and phyllotaxis drive robust branch spacing as an emergent property of auxin diffusion.
dlvr.it
November 6, 2025 at 9:18 PM
Robust branch patterning in moss shoots via symplasmic auxin diffusion CurrentBiology
Reposted by Ziv Spiegelman
This semester, for our Plant & Micro Biosci Grad program, I'm developing a new course on ✨Peer Review✨ & critical thinking. Final project is a full review of a preprint!
I'd love to have a journal editor zoom with the class to share their perspective and do a Q&A.
Anyone interested?
Pls share!
I'd love to have a journal editor zoom with the class to share their perspective and do a Q&A.
Anyone interested?
Pls share!
a man in a suit and tie is standing in front of a blackboard with the words " anyone ? anyone ? "
ALT: a man in a suit and tie is standing in front of a blackboard with the words " anyone ? anyone ? "
media.tenor.com
October 19, 2025 at 4:47 AM
This semester, for our Plant & Micro Biosci Grad program, I'm developing a new course on ✨Peer Review✨ & critical thinking. Final project is a full review of a preprint!
I'd love to have a journal editor zoom with the class to share their perspective and do a Q&A.
Anyone interested?
Pls share!
I'd love to have a journal editor zoom with the class to share their perspective and do a Q&A.
Anyone interested?
Pls share!
Reposted by Ziv Spiegelman
Binary vector copy number engineering improves Agrobacterium-mediated transformation
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Binary vector copy number engineering improves Agrobacterium-mediated transformation - Nature Biotechnology
Agrobacterium-mediated transformation of plants and fungi is enhanced by plasmid copy number variants.
www.nature.com
October 17, 2025 at 7:56 AM
Binary vector copy number engineering improves Agrobacterium-mediated transformation
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Ziv Spiegelman
From @kirkamundson.bsky.social this looks pretty amazing. www.biorxiv.org/content/10.1...
A deep-time landscape of plant cis-regulatory sequence evolution
Developmental gene function is conserved over deep time, but cis -regulatory sequence conservation is rarely found. Rapid sequence turnover, paleopolyploidy, structural variation, and limited phylogen...
www.biorxiv.org
October 17, 2025 at 9:38 AM
From @kirkamundson.bsky.social this looks pretty amazing. www.biorxiv.org/content/10.1...
Reposted by Ziv Spiegelman
MADS-BOX PROTEIN3 acts cooperatively with AGAMOUS-like6 and MADS-BOX PROTEIN22 to suppress parthenocarpy in tomato (Jackson Khedia, Hawi Deressa Kenea, Oscar Castaneda-Méndez, et al) doi.org/10.1093/plph... #PlantScience @aspbofficial
MADS-BOX PROTEIN3 acts cooperatively with AGAMOUS-like6 and MADS-BOX PROTEIN22 to suppress parthenocarpy in tomato
Tomato MADS-domain transcription factors interact in the ovule before fertilization to block ovary growth and prevent seedless fruit formation without poll
doi.org
October 16, 2025 at 3:25 PM
MADS-BOX PROTEIN3 acts cooperatively with AGAMOUS-like6 and MADS-BOX PROTEIN22 to suppress parthenocarpy in tomato (Jackson Khedia, Hawi Deressa Kenea, Oscar Castaneda-Méndez, et al) doi.org/10.1093/plph... #PlantScience @aspbofficial
Reposted by Ziv Spiegelman
Breaking Plant Blindness, One Taylor Swift Song at a Time
🌸 Now in @botany.one 🌱
botany.fyi/dbmzro
Full paper: doi.org/10.1093/aob/...
🌸 Now in @botany.one 🌱
botany.fyi/dbmzro
Full paper: doi.org/10.1093/aob/...
October 15, 2025 at 2:16 PM
Breaking Plant Blindness, One Taylor Swift Song at a Time
🌸 Now in @botany.one 🌱
botany.fyi/dbmzro
Full paper: doi.org/10.1093/aob/...
🌸 Now in @botany.one 🌱
botany.fyi/dbmzro
Full paper: doi.org/10.1093/aob/...
Reposted by Ziv Spiegelman
New pre-print from the team!
The manuscript is @emma-raven.bsky.social's PhD work showing that whether a leaf is a carbon sink or a carbon source influences how they execute immune responses.
Have a read!
#PlantScience
@johninnescentre.bsky.social
The manuscript is @emma-raven.bsky.social's PhD work showing that whether a leaf is a carbon sink or a carbon source influences how they execute immune responses.
Have a read!
#PlantScience
@johninnescentre.bsky.social
Primary metabolism underpins the execution of immune responses in different tissues of the same plant https://www.biorxiv.org/content/10.1101/2025.10.11.681807v1
October 14, 2025 at 7:16 AM
New pre-print from the team!
The manuscript is @emma-raven.bsky.social's PhD work showing that whether a leaf is a carbon sink or a carbon source influences how they execute immune responses.
Have a read!
#PlantScience
@johninnescentre.bsky.social
The manuscript is @emma-raven.bsky.social's PhD work showing that whether a leaf is a carbon sink or a carbon source influences how they execute immune responses.
Have a read!
#PlantScience
@johninnescentre.bsky.social
Reposted by Ziv Spiegelman
Identification of a cleaved aberrant RNA associated with the initiation of transgene silencing (Marianne C Kramer, Thivanka Sandaruwan Ratnayake, Seth A Edwards, Harper L Lowrey, et al) doi.org/10.1093/plce... #PlantScience
October 7, 2025 at 12:47 PM
Identification of a cleaved aberrant RNA associated with the initiation of transgene silencing (Marianne C Kramer, Thivanka Sandaruwan Ratnayake, Seth A Edwards, Harper L Lowrey, et al) doi.org/10.1093/plce... #PlantScience
Reposted by Ziv Spiegelman
How do geminiviruses maximize their limited coding capacity? Our recent preprint uncovers splicing of viral transcripts as one more strategy used by this viral family. We show that RNA splicing is prevalent in the geminivirus TYLCV — and required for infectivity! www.biorxiv.org/content/10.1...
Pervasive splicing in a plant DNA virus
Viruses maximize their limited coding space through strategies that increase transcript and protein diversity. In mammalian viruses, splicing is a well-established mechanism for proteome expansion, ye...
www.biorxiv.org
October 3, 2025 at 1:13 PM
How do geminiviruses maximize their limited coding capacity? Our recent preprint uncovers splicing of viral transcripts as one more strategy used by this viral family. We show that RNA splicing is prevalent in the geminivirus TYLCV — and required for infectivity! www.biorxiv.org/content/10.1...
Reposted by Ziv Spiegelman
📅New #PlantSciEvents Event Added: Plant Tissue Culture and Genome Engineering - 2026
👉https://buff.ly/rhPimQh
#PlantScience
👉https://buff.ly/rhPimQh
#PlantScience
Plant Tissue Culture and Genome Engineering - 2026
(2026) Sun 10 May - Wed 13 [EDT]: We are excited to announce that the International Conference on Plant Tissue Culture & Genome Engineering (PTCGE 2026) will take place from May 10–13, 2026, in Santa…
buff.ly
September 25, 2025 at 6:15 PM
📅New #PlantSciEvents Event Added: Plant Tissue Culture and Genome Engineering - 2026
👉https://buff.ly/rhPimQh
#PlantScience
👉https://buff.ly/rhPimQh
#PlantScience
Reposted by Ziv Spiegelman
Reposted by Ziv Spiegelman
Thank you very much to @theplantjournal.bsky.social for featuring our work on the cover of the latest journal issue! 🌱🧬☀️
Special thanks to the LWDG Waterloo for designing the image!
Cover image: onlinelibrary.wiley.com/doi/10.1111/...
Article: onlinelibrary.wiley.com/doi/full/10....
Special thanks to the LWDG Waterloo for designing the image!
Cover image: onlinelibrary.wiley.com/doi/10.1111/...
Article: onlinelibrary.wiley.com/doi/full/10....
September 22, 2025 at 2:39 PM
Thank you very much to @theplantjournal.bsky.social for featuring our work on the cover of the latest journal issue! 🌱🧬☀️
Special thanks to the LWDG Waterloo for designing the image!
Cover image: onlinelibrary.wiley.com/doi/10.1111/...
Article: onlinelibrary.wiley.com/doi/full/10....
Special thanks to the LWDG Waterloo for designing the image!
Cover image: onlinelibrary.wiley.com/doi/10.1111/...
Article: onlinelibrary.wiley.com/doi/full/10....
Reposted by Ziv Spiegelman
Abscisic acid signaling regulates primary plasmodesmata density for plant cell-to-cell communication | Science Advances www.science.org/doi/10.1126/...
Abscisic acid signaling regulates primary plasmodesmata density for plant cell-to-cell communication
Abscisic acid reduces primary plasmodesmata density in moss through conserved ABA signaling factors of land plants.
www.science.org
September 5, 2025 at 2:50 PM
Abscisic acid signaling regulates primary plasmodesmata density for plant cell-to-cell communication | Science Advances www.science.org/doi/10.1126/...
Reposted by Ziv Spiegelman
🚨 New publication alert 🚨
Tomato Roots Exhibit Development-Specific Responses to Bacterial-Derived Peptides
🔗: onlinelibrary.wiley.com/doi/10.1111/...
Authors: R Leuschen-Kohl, R Roberts, @danimstevens.bsky.social, N Zhang, S Buchanan, B Pilkey, @gittacoaker.bsky.social , and A Iyer-Pascuzzi.
Tomato Roots Exhibit Development-Specific Responses to Bacterial-Derived Peptides
🔗: onlinelibrary.wiley.com/doi/10.1111/...
Authors: R Leuschen-Kohl, R Roberts, @danimstevens.bsky.social, N Zhang, S Buchanan, B Pilkey, @gittacoaker.bsky.social , and A Iyer-Pascuzzi.
Tomato Roots Exhibit Development‐Specific Responses to Bacterial‐Derived Peptides
Pattern-triggered immune responses in roots are concentrated in the early differentiating regions in wild and domesticated tomatoes (Solanum pimpinellifolium and S. lycopersicum).
Signalling compon...
onlinelibrary.wiley.com
September 5, 2025 at 4:16 PM
🚨 New publication alert 🚨
Tomato Roots Exhibit Development-Specific Responses to Bacterial-Derived Peptides
🔗: onlinelibrary.wiley.com/doi/10.1111/...
Authors: R Leuschen-Kohl, R Roberts, @danimstevens.bsky.social, N Zhang, S Buchanan, B Pilkey, @gittacoaker.bsky.social , and A Iyer-Pascuzzi.
Tomato Roots Exhibit Development-Specific Responses to Bacterial-Derived Peptides
🔗: onlinelibrary.wiley.com/doi/10.1111/...
Authors: R Leuschen-Kohl, R Roberts, @danimstevens.bsky.social, N Zhang, S Buchanan, B Pilkey, @gittacoaker.bsky.social , and A Iyer-Pascuzzi.
Reposted by Ziv Spiegelman
Inactivation of β-1,3-glucan synthase-like 5 confers broad-spectrum resistance to Plasmodiophora brassicae pathotypes in cruciferous plants
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Inactivation of β-1,3-glucan synthase-like 5 confers broad-spectrum resistance to Plasmodiophora brassicae pathotypes in cruciferous plants - Nature Genetics
This study implicates GSL5 inactivation in high, broad-spectrum resistance to the clubroot pathogen Plasmodiophora brassicae in Arabidopsis thaliana, Brassica napus, Brassica oleracea and Brassica rap...
www.nature.com
September 1, 2025 at 10:06 AM
Inactivation of β-1,3-glucan synthase-like 5 confers broad-spectrum resistance to Plasmodiophora brassicae pathotypes in cruciferous plants
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Ziv Spiegelman
Our #research on #drought #recovery, now published with @springernature.com in @natcomms.nature.com:
Drought recovery in plants triggers a cell-state-specific immune activation.
doi.org/10.1038/s414...
Read thread below 👇
Drought recovery in plants triggers a cell-state-specific immune activation.
doi.org/10.1038/s414...
Read thread below 👇
Drought recovery in plants triggers a cell-state-specific immune activation - Nature Communications
Post-drought rehydration triggers a preventive immune response in plants, revealing targets to enhance crop resilience by linking drought stress recovery with improved pathogen resistance.
doi.org
August 31, 2025 at 2:17 AM
Our #research on #drought #recovery, now published with @springernature.com in @natcomms.nature.com:
Drought recovery in plants triggers a cell-state-specific immune activation.
doi.org/10.1038/s414...
Read thread below 👇
Drought recovery in plants triggers a cell-state-specific immune activation.
doi.org/10.1038/s414...
Read thread below 👇
Reposted by Ziv Spiegelman
Postdoc depression
www.nature.com/articles/d41...
www.nature.com/articles/d41...
Postdoc depression and anxiety rates are rising, finds survey of 872 researchers
The Max Planck Society is good at attracting international postdocs but struggles to retain them, survey finds.
www.nature.com
August 20, 2025 at 10:07 AM
Postdoc depression
www.nature.com/articles/d41...
www.nature.com/articles/d41...
Reposted by Ziv Spiegelman
Over 2.5 million Israelis joined today’s anti-Netanyahu protests, organisers estimate. 300,000 are now in Tel Aviv's Hostage Square. (Haaretz)
August 17, 2025 at 7:19 PM
Over 2.5 million Israelis joined today’s anti-Netanyahu protests, organisers estimate. 300,000 are now in Tel Aviv's Hostage Square. (Haaretz)
Reposted by Ziv Spiegelman
🚨 Fungi + viruses + mammalian lungs? Buckle up! Our new paper in
@natmicrobiol.nature.com
uncovers the story of a deadly fungus and its gnarly viral hitchhiker — and how this duo may change how we diagnose & treat fungal disease 🍄🫁🚨 doi.org/10.1038/s415... ⬇️
@natmicrobiol.nature.com
uncovers the story of a deadly fungus and its gnarly viral hitchhiker — and how this duo may change how we diagnose & treat fungal disease 🍄🫁🚨 doi.org/10.1038/s415... ⬇️
Aspergillus fumigatus dsRNA virus promotes fungal fitness and pathogenicity in the mammalian host - Nature Microbiology
A mycovirus infecting the pathogenic fungus Aspergillus fumigatus enhances its stress tolerance and virulence in mice.
doi.org
August 14, 2025 at 9:46 AM
🚨 Fungi + viruses + mammalian lungs? Buckle up! Our new paper in
@natmicrobiol.nature.com
uncovers the story of a deadly fungus and its gnarly viral hitchhiker — and how this duo may change how we diagnose & treat fungal disease 🍄🫁🚨 doi.org/10.1038/s415... ⬇️
@natmicrobiol.nature.com
uncovers the story of a deadly fungus and its gnarly viral hitchhiker — and how this duo may change how we diagnose & treat fungal disease 🍄🫁🚨 doi.org/10.1038/s415... ⬇️
Reposted by Ziv Spiegelman
Introducing the 1,000 Flower Collection 🧬🌹
I’m creating 1,000 genetically designed flowers each crafted with new colors, patterns, and shapes.
Here’s how I’m making it happen… and how you can join me on this journey 🧵(1/7)
I’m creating 1,000 genetically designed flowers each crafted with new colors, patterns, and shapes.
Here’s how I’m making it happen… and how you can join me on this journey 🧵(1/7)
August 11, 2025 at 6:54 PM
Introducing the 1,000 Flower Collection 🧬🌹
I’m creating 1,000 genetically designed flowers each crafted with new colors, patterns, and shapes.
Here’s how I’m making it happen… and how you can join me on this journey 🧵(1/7)
I’m creating 1,000 genetically designed flowers each crafted with new colors, patterns, and shapes.
Here’s how I’m making it happen… and how you can join me on this journey 🧵(1/7)
Reposted by Ziv Spiegelman
I am thrilled to share the 2nd chapter of my PhD with @adsteinbrenner.bsky.social In collaboration with @tiszapatrick we demonstrated that the LRR-RLP INR is the missing molecular link between caterpillar recognition and predatory wasp recruitment in the field. A thread 1/6
A plant immune receptor mediates tritrophic interactions by linking caterpillar detection to predator recruitment https://www.biorxiv.org/content/10.1101/2025.07.29.667524v1
August 1, 2025 at 9:25 PM
I am thrilled to share the 2nd chapter of my PhD with @adsteinbrenner.bsky.social In collaboration with @tiszapatrick we demonstrated that the LRR-RLP INR is the missing molecular link between caterpillar recognition and predatory wasp recruitment in the field. A thread 1/6
Reposted by Ziv Spiegelman
New preprint: In situ Architecture of #Plasmodesmata.
Using #cryoET, #AlphaFold & proteomics, we uncover the native organization of plant intercellular nanopores.
🔗 doi.org/10.1101/2025...
🧪🧵1/n
#teamtomo #PlantScience #Physcomitrium #Arabidopsis #cryoEM
Using #cryoET, #AlphaFold & proteomics, we uncover the native organization of plant intercellular nanopores.
🔗 doi.org/10.1101/2025...
🧪🧵1/n
#teamtomo #PlantScience #Physcomitrium #Arabidopsis #cryoEM
July 26, 2025 at 3:38 PM
New preprint: In situ Architecture of #Plasmodesmata.
Using #cryoET, #AlphaFold & proteomics, we uncover the native organization of plant intercellular nanopores.
🔗 doi.org/10.1101/2025...
🧪🧵1/n
#teamtomo #PlantScience #Physcomitrium #Arabidopsis #cryoEM
Using #cryoET, #AlphaFold & proteomics, we uncover the native organization of plant intercellular nanopores.
🔗 doi.org/10.1101/2025...
🧪🧵1/n
#teamtomo #PlantScience #Physcomitrium #Arabidopsis #cryoEM
Reposted by Ziv Spiegelman
🧪 My agricultural biotech company Silvec, inc is hiring! Check us out at www.silvec.com
We use benign viruses vectors to introduce siRNAs/peptides into plants to control pathogens. Looking for scientist with experience researching spray/other application of viruses to row crops. DM for information!
We use benign viruses vectors to introduce siRNAs/peptides into plants to control pathogens. Looking for scientist with experience researching spray/other application of viruses to row crops. DM for information!
Silvec Biologics | RNA Therapies for Trees
Silvec Biologics | Protecting, curing and enhancing trees with RNA therapies
www.silvec.com
July 24, 2025 at 8:36 AM
🧪 My agricultural biotech company Silvec, inc is hiring! Check us out at www.silvec.com
We use benign viruses vectors to introduce siRNAs/peptides into plants to control pathogens. Looking for scientist with experience researching spray/other application of viruses to row crops. DM for information!
We use benign viruses vectors to introduce siRNAs/peptides into plants to control pathogens. Looking for scientist with experience researching spray/other application of viruses to row crops. DM for information!