ryotachibana.bsky.social
Ryo Tachibana
@ryotachibana.bsky.social
42 followers 83 following 11 posts
Plant science, Post-doc, 🇯🇵Kyoto univ.(BSc, MSc, PhD)→🇬🇧Univ. Cambridge (Post-doc), chloroplast biogenesis by transcription factors🌱 X: @Ryo Tachibana_4 https://linktr.ee/RyoTachibana_4
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ryotachibana.bsky.social
Ryo Tachibana @ryotachibana.bsky.social · Jul 23
Our latest paper is out in The Plant Cell! 🚀 @theplantcell.bsky.social
We identified BGH2, a suppressor of GLK transcription factors, as a key regulator of plastid homeostasis and light adaptation.
Huge thanks to everyone who supported and contributed to this work!
doi.org/10.1093/plce...
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ryotachibana.bsky.social
Ryo Tachibana @ryotachibana.bsky.social · 19h
Great paper related to my PhD work!!!!!!
Must read!!!

Editing of rice PSEUDO-ETIOLATION IN LIGHT microProtein genes promotes chloroplast development academic.oup.com/plcell/artic...
Editing of rice PSEUDO-ETIOLATION IN LIGHT microProtein genes promotes chloroplast development
Loss of function of OsPEL microProteins promotes chloroplast development by relieving their cytoplasmic sequestration of OsGLK1 and OsPSA2, enhancing photo
academic.oup.com
Reposted by Ryo Tachibana
vinayshukla.bsky.social
Vinay Shukla @vinayshukla.bsky.social · 6d
HY5 integrates light and electrical signaling to trigger a jasmonate burst for nematode defense in tomato
www.nature.com/articles/s41...
#plantscience
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ryotachibana.bsky.social
Ryo Tachibana @ryotachibana.bsky.social · 18d
A single-cell rice atlas integrates multi-species data to reveal cis-regulatory evolution
www.nature.com/articles/s41...
A single-cell rice atlas integrates multi-species data to reveal cis-regulatory evolution - Nature Plants
This study maps chromatin accessibility at single-cell resolution in rice and related grasses, revealing how regulatory DNA elements evolve across cell types and species and identifying potential sile...
www.nature.com
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Reposted by Ryo Tachibana
shirasulab.bsky.social
Ken Shirasu @shirasulab.bsky.social · 21d
Well done, Max! Neofunctionalized RGF pathways drive haustorial organogenesis in parasitic plants | Science Advances www.science.org/doi/10.1126/...
Neofunctionalized RGF pathways drive haustorial organogenesis in parasitic plants
Plant peptide hormones regulate and induce the parasitic plant specialized organ for connecting to and feeding from the host.
www.science.org
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ryotachibana.bsky.social
Ryo Tachibana @ryotachibana.bsky.social · Sep 5
Huge thanks!!!
thepallavisinghlab.bsky.social
The Pallavi Singh Lab @thepallavisinghlab.bsky.social · Sep 2
A huge round of applause for our
conference prize winners! Congratulations to Jessica Moon, James Vanstone, Anoop Tripathi, Rhiannon Durant, Daisy Bown and Ryo Tachibana! Your outstanding research was a highlight of the conference #PlastidPreview2025
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Reposted by Ryo Tachibana
thepallavisinghlab.bsky.social
The Pallavi Singh Lab @thepallavisinghlab.bsky.social · Sep 2
A huge round of applause for our
conference prize winners! Congratulations to Jessica Moon, James Vanstone, Anoop Tripathi, Rhiannon Durant, Daisy Bown and Ryo Tachibana! Your outstanding research was a highlight of the conference #PlastidPreview2025
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Reposted by Ryo Tachibana
thepallavisingh.bsky.social
Pallavi Singh @thepallavisingh.bsky.social · Sep 2
#PlastidPreview2025
A big thank you to all our excellent presenters and participants for making this meeting such a stimulating and engaging event. Grateful to be part of the inspiring Plastid Biology community!!
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Reposted by Ryo Tachibana
thepallavisinghlab.bsky.social
The Pallavi Singh Lab @thepallavisinghlab.bsky.social · Sep 2
To wrap things up, we have @ryotachibana.bsky.social‬ from the Molecular Physiology group at @camplantsci.bsky.social‬, who is discussing how certain proteins maintain chloroplast and etioplast homeostasis in Arabidopsis. A great final talk! #PlastidPreview2025
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ryotachibana.bsky.social
Ryo Tachibana @ryotachibana.bsky.social · Sep 5
This week I joined two conferences, Plastid Preview 2025 and NoCaSS!
Thank you for great organisers!

And happy to get Outstanding Presentation Award in Plastid Preview!!! Thank you so much!!!
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Reposted by Ryo Tachibana
theplantcell.bsky.social
The Plant Cell @theplantcell.bsky.social · Aug 28
The July 2025 issue of The Plant Cell from @ASPB @OxUniPress is now COMPLETE! academic.oup.com/plcell/issue... #PlantScience
Volume 37 Issue 7 | The Plant Cell | Oxford Academic
The Plant Cell publishes novel research of special significance in plant biology, especially in the areas of cellular biology, molecular biology, biochemistry, genetics, development, and evolution.
academic.oup.com
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ryotachibana.bsky.social
Ryo Tachibana @ryotachibana.bsky.social · Aug 21
Thank you for the commentary for our article!

Dark-responsive BGH2 and light-responsive BPG4: Taming the GLK1/2 master transcription factors for etioplast and chloroplast homeostasis

academic.oup.com/plcell/artic...
Dark-responsive BGH2 and light-responsive BPG4: Taming the GLK1/2 master transcription factors for etioplast and chloroplast homeostasis
Chlorophyll is the central pigment of photosynthesis in plants, capturing light energy that is converted into chemical energy that fuels plant growth and d
academic.oup.com
ryotachibana.bsky.social
Ryo Tachibana @ryotachibana.bsky.social · Aug 12
Happy to share !!!!😊😊😊
theplantcell.bsky.social
The Plant Cell @theplantcell.bsky.social · Aug 12
Dark-inducible BGH2 suppresses GLK transcription factors and maintains plastid homeostasis to promote light adaptation (Ryo Tachibana (立花 諒) , Rino Akema (明間 莉乃) , Akiko Yoshihara (吉原 晶子) , et al)) doi.org/10.1093/plce... #PlantScience
doi.org
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Reposted by Ryo Tachibana
theplantcell.bsky.social
The Plant Cell @theplantcell.bsky.social · Aug 12
Dark-inducible BGH2 suppresses GLK transcription factors and maintains plastid homeostasis to promote light adaptation (Ryo Tachibana (立花 諒) , Rino Akema (明間 莉乃) , Akiko Yoshihara (吉原 晶子) , et al)) doi.org/10.1093/plce... #PlantScience
doi.org
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Reposted by Ryo Tachibana
yokoyama-ryo.bsky.social
Ryo Yokoyama @yokoyama-ryo.bsky.social · Aug 6
Pod Photosynthesis: A New Frontier for Developing Stress-Resilient and High-Yielding Crops academic.oup.com/pcp/article/... @plantcellphysiol.bsky.social
Pod Photosynthesis: A New Frontier for Developing Stress-Resilient and High-Yielding Crops
Abstract. Burgeoning global demand for crop products and the negative impact of climate change on crop production are driving the need to improve yield by
academic.oup.com
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ryotachibana.bsky.social
Ryo Tachibana @ryotachibana.bsky.social · Aug 6
Super surprised!
The cotton BGH2 paper is published today, at the mostly same time as my AtBGH2 paper (
academic.oup.com/plcell/artic...)!

A GhBGH2‐GhGLK1 Regulatory Module Mediates Salt Tolerance in Cotton onlinelibrary.wiley.com/doi/10.1111/...
A GhBGH2‐GhGLK1 Regulatory Module Mediates Salt Tolerance in Cotton
Soil salinisation, exacerbated by climate change and human activities such as irrigation mismanagement, improper land use and excessive fertilisation, has become a major constraint on global crop pro...
onlinelibrary.wiley.com
Reposted by Ryo Tachibana
theplantcell.bsky.social
The Plant Cell @theplantcell.bsky.social · Jul 28
Best practices in plant fluorescence imaging and reporting: A primer (Kirk J Czymmek , Yoselin Benitez-Alfonso , Tessa Burch-Smith , et al) doi.org/10.1093/plce... #PlantScience
doi.org
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Reposted by Ryo Tachibana
shirasulab.bsky.social
Ken Shirasu @shirasulab.bsky.social · Jul 28
Cryo structure of CARD1 from N. benthamiana transiently produced protein.
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Reposted by Ryo Tachibana
shirasulab.bsky.social
Ken Shirasu @shirasulab.bsky.social · Jul 28
Our new work lead by Anuphon. Cryo Structure of CARD1 reveals copper in the ecodomain, required for sensing H202. The phenotype of card1 is same as rbohd, suggesting ROS produced by RBOHD is sensed by CARD1.
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Reposted by Ryo Tachibana
yokoyama-ryo.bsky.social
Ryo Yokoyama @yokoyama-ryo.bsky.social · Jul 28
The chloroplast ionome shines new light on organellar Fe homeostasis www.biorxiv.org/content/10.1...
The chloroplast ionome shines new light on organellar Fe homeostasis
Annually, chloroplasts fix 258 billion tons of CO2 through photosynthesis. Photosynthesis and other biochemical pathways require specific amounts of metal ions in the organelle. Transport proteins in ...
www.biorxiv.org
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Reposted by Ryo Tachibana
plantevolution.bsky.social
PlantEvolution 🌱🌾 @plantevolution.bsky.social · Jul 23
Jennifer Nemhauser’s and my tribute to our amazing friend and mentor, the extraordinary Joanne Chory.

Read about our personal and professional reminiscences. Thanks to all who provided background for this.

www.pnas.org/doi/10.1073/...
Joanne Chory (1955–2024): Plant geneticist extraordinaire | PNAS
Joanne Chory (1955–2024) was a pioneering biologist whose research transformed our understanding of plant growth and development. Her groundbreakin...
www.pnas.org
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Reposted by Ryo Tachibana
yokoyama-ryo.bsky.social
Ryo Yokoyama @yokoyama-ryo.bsky.social · Jul 23
Dark-inducible BGH2 suppresses GLK transcription factors and maintains plastid homeostasis to promote light adaptation academic.oup.com/plcell/artic... @theplantcell.bsky.social
Dark-inducible BGH2 suppresses GLK transcription factors and maintains plastid homeostasis to promote light adaptation
BPG4 HOMOLOGOUS GENE2 functions as a nucleus-localized plastid homeostasis factor, helping dark-germinated seedlings adapt to light by fine-tuning chloroph
academic.oup.com
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Reposted by Ryo Tachibana
yokoyama-ryo.bsky.social
Ryo Yokoyama @yokoyama-ryo.bsky.social · Jul 16
Retrograde signals control dynamic changes to the chromatin state at photosynthesis-associated loci www.nature.com/articles/s41... @natcomms.nature.com
Retrograde signals control dynamic changes to the chromatin state at photosynthesis-associated loci - Nature Communications
Quevedo et al., demonstrate that the epigenome is closely connected to organellar activities through retrograde signals, and that such signals drive specific changes to chromatin availability that per...
www.nature.com
2 3
ryotachibana.bsky.social
Ryo Tachibana @ryotachibana.bsky.social · Jul 23
BGH2 is a paralog of BPG4, which we reported as a chloroplast homeostasis factor last year in Nature Communications (Tachibana et al. 2024).
www.nature.com/articles/s41...

Interestingly, in contrast to light-inducible BPG4, BGH2 is dark-inducible and acts as an etioplast homeostasis factor!!
BPG4 regulates chloroplast development and homeostasis by suppressing GLK transcription factors and involving light and brassinosteroid signaling - Nature Communications
The authors identify BPG4, a novel regulator of chloroplast development. BPG4 directly suppresses transcriptional activity of GLK to fine-tune photosynthesis associated nuclear gene expression, and re...
www.nature.com
1
ryotachibana.bsky.social
Ryo Tachibana @ryotachibana.bsky.social · Jul 23
Our latest paper is out in The Plant Cell! 🚀 @theplantcell.bsky.social
We identified BGH2, a suppressor of GLK transcription factors, as a key regulator of plastid homeostasis and light adaptation.
Huge thanks to everyone who supported and contributed to this work!
doi.org/10.1093/plce...
1 3 6
Reposted by Ryo Tachibana
cp-trendsmicrobiol.bsky.social
Trends in Microbiology @cp-trendsmicrobiol.bsky.social · Jul 23
Two more articles in our series on 'Scientific mobility in microbiology' are online now.

Read @edelplopez.bsky.social and @tatsuyanobori.bsky.social's mobility-related experiences and their insights here: authors.elsevier.com/a/1lTnY,L%7E... & authors.elsevier.com/a/1lTnY_,2Ci...
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