Takehiro A. Ozawa
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tkozawa.bsky.social
Takehiro A. Ozawa
@tkozawa.bsky.social
PhD candidate at CINVESTAV Unidad Irapuato 🇲🇽.
Interested in microalgae (e.g. Botryococcus braunii), algal biotechnology and plant energy management (i.e. #PlantTOR and #SnRK1 signaling pathways 🌱⚡️).
Reposted by Takehiro A. Ozawa
🌾 Shorten the wheat gene-edited breeding cycle
✨ Haploid induction × gene editing

▶️Rapid Genetic Stabilisation of Transgenic and Edited Wheat Through Transformation of Immature Haploid Embryos

📖 doi.org/10.1111/pbi....
November 28, 2025 at 2:26 PM
Reposted by Takehiro A. Ozawa
Cellular energy sensor SnRK1 suppresses salicylic acid–dependent and –independent defenses and bacterial resistance in Arabidopsis

www.pnas.org/doi/abs/10.1...
Cellular energy sensor SnRK1 suppresses salicylic acid–dependent and –independent defenses and bacterial resistance in Arabidopsis | PNAS
In nature, plants cope with various pathogens that compete for cellular resources during infection. It has long been suggested that plant defense a...
www.pnas.org
November 27, 2025 at 1:49 PM
Reposted by Takehiro A. Ozawa
"Plant single cell RNAseq workshop: From current technologies to data analyses"  Saclay Plant Sciences Summer School, June 28 - July 3, 2026 – Versailles (France)
"Plant single cell RNAseq workshop: From current technologies to data analyses"  Saclay Plant Sciences Summer School, June 28 - July 3, 2026 – Versailles (France)
This Summer school is organized by the Saclay Plant Sciences (SPS) network, one of the largest European plant sciences communities.   scRNAseq approaches have revolutionized the way biologists approach their research subjects, by making it possible to dissect molecular mechanisms at the single-cell level. But although technological developments have recently made these approaches more accessible, their expensive use still requires significant technical training, including the good conception of experimental designs, the preparation of samples as well as their bioinformatics analyses. In addition, different protocols and various bioinformatics and statistical analyzes are available, and it can be difficult to choose the most relevant ones for the biological question at hand.   Over five days, the SPS Summer School 2026 will cover all the stages of a scRNAseq project in plants. Through a combination of lectures and practical work, the many specific features of plant models will be highlighted by experts from the Saclay Plant Sciences network (CNRS and INRAE), the ViB in Ghent and the Pasteur Institute. After this international school, participants will: –    Have an overview of the different scRNAseq technologies and understand their pros and cons. –    Be able to design experiments depending on the biological question.  –    Be trained on sample preparation techniques for single cell and single nuclei –    Understand the different steps of bioinformatics and statistical analysis –    Have a better biological interpretation of results –    Have facilitated exchanges with technology platforms, bioinformaticians, and biostatisticians in order to successfully complete their scRNAseq project The summer school will bring together outstanding and enthusiastic young scientists (PhD students and post-docs) from all over the world in order to exchange knowledge and ideas. It is limited to a small group of participants (20 maximum) to privilege informal interactions and scientific discussions   Application deadline: March 12, 2026 (midnight) Answers will be sent mid-April at the latest.    
eng-saclay-plant-sciences.hub.inrae.fr
November 26, 2025 at 7:53 PM
Reposted by Takehiro A. Ozawa
Thrilled to have contributed to this @nature.com study on ethylene and cell wall mechanics in root compaction responses!! — Featuring Jiao Zhang, Lucas Peralta Ogorek, @borgesaugust.bsky.social , Bipin Pandey, Staffan Persson, Wanqi Zhang, Malcolm Bennett & more!!

www.nature.com/articles/s41...
Ethylene modulates cell wall mechanics for root responses to compaction - Nature
Soil compaction traps ethylene around roots, which causes transcriptional upregulation of Auxin Response Factor1, resulting in decreased root cortical cell wall thickness and thereby promoting root ra...
www.nature.com
November 26, 2025 at 9:18 PM
Reposted by Takehiro A. Ozawa
📢Postdoc position available!🧪🧫🧬
Our group is seeking a motivated researcher to investigate the molecular mechanisms driving host–endosymbiont interactions.
Full details & application: karriere.hhu.de//index.php?a....
Please help us get the word out!
Postdoc (m/f/d) in Endosymbiosis Research
karriere.hhu.de
November 25, 2025 at 11:21 AM
Reposted by Takehiro A. Ozawa
New pre-print! ➡️ LCI9 is required for normal pyrenoid starch sheath formation and efficiency of the CO2-concentrating mechanism in Chlamydomonas reinhardtii

Featuring the wildest looking starch granules you've ever seen!

www.biorxiv.org/content/10.1...
November 24, 2025 at 6:32 PM
Reposted by Takehiro A. Ozawa
And now we have Arabidopsis plants with 8 chromosomes instead of 10 and no obvious phenotypic differences, this week in @science.org
#PlantScience
Paper here: www.science.org/doi/10.1126/...

Perspective here:
www.science.org/doi/10.1126/...
CRISPR-Cas–mediated heritable chromosome fusions in Arabidopsis
The genome of Arabidopsis thaliana consists of 10 chromosomes. By inducing CRISPR-Cas–mediated breaks at subcentromeric and subtelomeric sequences, we fused entire chromosome arms, obtaining two eight...
www.science.org
November 21, 2025 at 10:20 AM
Reposted by Takehiro A. Ozawa
Plant EvoDevo and EvoMPMI people - consider applying to UBC, their science (and weather) is great!
November 20, 2025 at 10:27 PM
Reposted by Takehiro A. Ozawa
It’s finally out! 🎉
Work led by former PhD student @wei-xiao-botany.bsky.social , in collaboration with @bayerlab.bsky.social and @bertderybel.bsky.social
AINTEGUMENTA phospho-switch regulates bilateral stem cell activity during secondary growth.

🔗 www.pnas.org/doi/10.1073/...

#PlantSciences
An AINTEGUMENTA phosphoswitch controls bilateral stem cell activity during secondary growth | PNAS
Plant stem cells have the remarkable ability to give rise to distinct tissues and organs throughout development. Two concentric cylinders of active...
www.pnas.org
November 20, 2025 at 9:07 PM
Reposted by Takehiro A. Ozawa
Christoph Ringli and collaborators identify a new regulator of the Arabidopsis extensin-mediated cell wall integrity sensing: phosphatase PP2C12 inhibiting receptor kinase FERONIA
www.embopress.org/doi/full/10....
November 20, 2025 at 1:57 PM
Reposted by Takehiro A. Ozawa
A Mortise-Tenon joint system facilitates precise targeted DNA insertion and replacement in rice #resource #MolecularPlant cell.com/molecular-pl...
November 20, 2025 at 6:03 AM
Reposted by Takehiro A. Ozawa
SWEET1‐mediated glucose transport is crucial for energy availability in Arabidopsis

Xue et al.

nph.onlinelibrary.wiley.com/doi/10.1111/...
November 20, 2025 at 12:11 AM
Reposted by Takehiro A. Ozawa
A synthetic transcription cascade enables direct in planta shoot regeneration for transgenesis and gene editing in multiple plants #resource #MolecularPlant cell.com/molecular-pl...
November 15, 2025 at 12:50 PM
Reposted by Takehiro A. Ozawa
By combining molecular genetics with cell-ablation experiments, we found that vascular cambium stem cells and xylem-identity cells form an interchangeable unit, a stem cell niche. Meticulous work by @xixizhang9001.bsky.social, Ondrej Smetana, Jing Zhang & Xiaoyu Wang 1/x www.pnas.org/doi/10.1073/...
Auxin transport positions stem cells in the vascular cambium during normal development and regeneration | PNAS
The vascular cambium contains bifacial stem cells producing secondary phloem in one and secondary xylem to the opposite direction. In Arabidopsis r...
www.pnas.org
November 14, 2025 at 9:30 AM
Reposted by Takehiro A. Ozawa
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.
Call for Applications: Early Career Rescue Fellowship – Freiburg Institute for Advanced Studies
uni-freiburg.de
November 13, 2025 at 4:28 PM
Reposted by Takehiro A. Ozawa
📣 Looking for a 3-Year Postdoc @johninnescentre.bsky.social to join my Wellcome project.

This is a highly interdisciplinary project that explores chromatin dynamics in 🌱 plant responses across timescales, from circadian rhythms to seasonal changes

📅 Closes on 10 Dec.
www.jic.ac.uk/vacancies/36...
Postdoctoral Researcher (Dr Miguel Montez) | John Innes Centre
An exciting opportunity has arisen for a Postdoctoral Researcher to join the Wellcome Trust project led by Dr Miguel Montez and hosted within the Dodd Group at the John Innes Centre.
www.jic.ac.uk
November 13, 2025 at 8:34 AM
Reposted by Takehiro A. Ozawa
How are the intervals of periodic pattern formation regulated during plant morphogenesis? Our latest study now published in @natcomms.nature.com proposes that the mutual inhibition between EPFL2 and auxin modulates the periodicity🌿

www.nature.com/articles/s41...
Mutual inhibition between EPFL2 and auxin extends the intervals of periodic leaf morphogenesis - Nature Communications
Plant development is characterized by periodic morphogenesis, yet regulatory mechanisms underlying the periodicity remain unknown. Tameshige et al. reveal that bistable cellular status modulates the s...
www.nature.com
November 13, 2025 at 10:52 AM
Reposted by Takehiro A. Ozawa
Need a better way to purify your favorite plant proteins? 🎣 Check out the Catch & Release toolbox! Find plasmids here: www.addgene.org/browse/artic...
Thanks @kunzlab.bsky.social for sharing!
November 13, 2025 at 2:36 PM
Reposted by Takehiro A. Ozawa
🚨 New preprint by @cate-giannini.bsky.social🚨
We uncover an unexpected link between auxin signalling, transcription, and autophagy — revealing how plants coordinate gene expression and cytoplasmic renewal to drive developmental reprogramming. 🌱✨ www.biorxiv.org/content/10.1...
November 12, 2025 at 4:22 PM
Reposted by Takehiro A. Ozawa
Our paper on the #genome of the Trebouxia #photobiont from Xanthoria is now out in @newphyt.bsky.social! Check below for a near-chromosome level assembly, secretome analysis, evidence of ancient HGT, and transcriptomic comparison of the alga in symbiosis and in pure culture
doi.org/10.1111/nph.70728
November 12, 2025 at 3:46 PM
Reposted by Takehiro A. Ozawa
The First Annual Virtual WALII Symposium: Exploring Life Without Water is ONE WEEK AWAY! 🗓️💧

Register now to join us on November, 18!
www.walii.science/virtual-symp...
November 11, 2025 at 7:37 PM
Reposted by Takehiro A. Ozawa
Our preprint is finally out 🌿
“𝒑𝒑𝑮𝒑𝒑 𝒑𝒓𝒐𝒎𝒐𝒕𝒆𝒔 𝒉𝒊𝒈𝒉-𝒍𝒊𝒈𝒉𝒕 𝒕𝒐𝒍𝒆𝒓𝒂𝒏𝒄𝒆 𝒊𝒏 𝑨𝒓𝒂𝒃𝒊𝒅𝒐𝒑𝒔𝒊𝒔”
Its been a journey- first spotted by Matteo Sugliani over ten years ago, carried forward by Shanna Romand, and brought to the finish line with help from many collaborators. #PlantScience tinyurl.com/wpf3bp25
Guanosine tetraphosphate (ppGpp) signalling promotes high-light tolerance in Arabidopsis thaliana.
Guanosine tetraphosphate (ppGpp) is a hyperphosphorylated nucleotide originally discovered in prokaryotes and found in the chloroplasts of plants and algae. In plants, ppGpp signalling plays a role as...
www.biorxiv.org
November 10, 2025 at 8:13 AM
Reposted by Takehiro A. Ozawa
New paper is online! We used single cell RNA-seq & phylogenetics to identify 2 additional cell type specific TFs that control late-stage vinca alkaloid biosynthesis. The key insights originated from Camptotheca, another species that produces alkaloids. doi.org/10.1111/nph.... #PlantScience #SecMet
November 10, 2025 at 1:29 PM
Reposted by Takehiro A. Ozawa
New research out of Death Valley from @rheelab.bsky.social! 🏜️ Learn how one desert plant beats the heat through photosynthetic acclimation in their @currentbiology.bsky.social paper: www.sciencedirect.com/science/arti...

#PlantScience #PlantResilience
Photosynthetic acclimation is a key contributor to exponential growth of a desert plant in Death Valley summer
Heat waves, now more frequent and longer due to climate change, devastate plant productivity. Although they are rare, thermophilic plants could hold k…
www.sciencedirect.com
November 7, 2025 at 7:38 PM
Reposted by Takehiro A. Ozawa
Applications due by Dec. 1
I recently moved my lab to Purdue University and am looking for graduate students. We are working at the interface of population genomics, quantitative genetics and functional genomics to understand how plants adapt to extreme environments. Reach out if you would like to discuss potential projects.
November 8, 2025 at 3:46 PM