#PhotoProtection
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amunts.bsky.social
Our new preprint: how photoprotection is spatially coordinated with energy metabolism. Photosystem I is major source of radicals. We report EM structure of PSI in complex with superoxide dismutase SOD: direct link between energy conversion & oxidative stress defence
www.biorxiv.org/content/10.1...
July 7, 2025 at 6:03 AM
sjb287.bsky.social
Started 6 years ago with the question how much potential is there to breed soybean for improved photosynthetic efficiency based on speeding up relaxation of photoprotection a 🧵1/n
onlinelibrary.wiley.com/doi/10.1111/...
Variation in relaxation of non‐photochemical quenching between the founder genotypes of the soybean (Glycine max) nested association mapping population
Previous evidence suggests increasing the rate of relaxation of photoprotection can lead to improved biomass and yield. By comparing photoprotection in 41 diverse soybean genotypes grown in the field....
onlinelibrary.wiley.com
January 27, 2025 at 1:12 PM
membramics-lab.bsky.social
Happy to share our new preprint on revealing how cytoskeletons contribute to 3D organelles spatialization for genome photoprotection, by Cedric Delevoye. Study initiated @institutcurie.bsky.social in collaboration with L'Oreal and finalized at INEM, Necker.

www.biorxiv.org/content/10.1...
Keratin intermediate filaments mechanically position melanin pigments for genome photoprotection
Melanin pigments block genotoxic agents by positioning on the sun-exposed side of human skin keratinocytes nucleus. How this position is regulated and its role in genome photoprotection remains unknow...
www.biorxiv.org
January 16, 2025 at 5:40 PM
arthurobuntspecht.bsky.social
New research reveals how to better monitor tree #drought #stress! We combined remote sensing data (greenness & photoprotection indicators) with leaf water potential measurements to track drought impacts across different tree species.
www.sciencedirect.com/science/arti...
Deciphering tree drought responses across species: linking leaf water potentials with remote sensing greenness and photoprotection dynamics
Monitoring forest drought stress requires indicators that capture tree water relations across species and scales. Remote sensing enables large-scale a…
www.sciencedirect.com
October 1, 2025 at 2:26 PM
metapyxl.com
Your photos should work for you, not against you. Right?
🔹 Know where your images go
🔹 Protect your rights
🔹 Get paid for your work Let’s talk!

#Photography #ImageRights #PhotoProtection #DigitalOwnership #DRM #Licensing #Metapyxl
Elephant in India
February 10, 2025 at 3:07 PM
shihcheng.bsky.social
Chloroplasts use MBS1 to sense singlet oxygen (¹O₂) and trigger photoprotection, revealing how plants manage high-light tolerance through protein condensates. PMID:42309053, Cell 2026, @Cell https://www.cell.com/cell/fulltext/S0092-8674(26)00642-2 #Medsky #Pharmsky #RNA #ASHG #ESHG 🧪
https://www.cell.com/cell/fulltext/S0092-8674(26)00642-2
No description available
www.cell.com
September 23, 2026 at 2:00 PM
schwarzlanderlab.bsky.social
50% PMF🪫keeps ATP at 100%🔋

www.nature.com/articles/s41...
@natplants.nature.com

CET provides ∆pH for photoprotection, while the redox balance is most likely handled by the malate valve 🍃☀️

Based on elegant in vivo ATP biosensing by @gustaf23.bsky.social &
@profmattjohnson.bsky.social
August 17, 2026 at 11:47 AM
yokoyama-ryo.bsky.social
Combination of abiotic stresses accelerates photoprotection in exceptionally chilling tolerant C4 grass by fine tuning content of multiple pigments academic.oup.com/jxb/article/... @jxbotany.bsky.social
Combination of abiotic stresses accelerates photoprotection in exceptionally chilling tolerant C4 grass by fine tuning content of multiple pigments
Abstract. C4 grasses are crucial for food and biofuel production. Originating from warm regions of the world, C4-photosynthesizing plants typically exhibit
academic.oup.com
May 21, 2026 at 1:42 PM
idnu.eurosky.social
Me he descargado la app uvderma para saber el índice de radiación y cuánto podría estar bajo el sol sin quemarme
play.google.com/store/apps/d...
UV-Derma - Apps on Google Play
Photoprotection in your smartphone
play.google.com
August 16, 2025 at 12:52 PM
plantphys.bsky.social
Structure and regulation of violaxanthin de-epoxidase, a key enzyme in the photoprotection of photosynthesis (Anna Santin , Eleonora Mezzadrelli , Giorgio Perin , Tomas Morosinotto) doi.org/10.1093/plph... #PlantScience @aspbofficial
Structure and regulation of violaxanthin de-epoxidase, a key enzyme in the photoprotection of photosynthesis
Violaxanthin de-epoxidase controls the conversion of light-sensitive pigments, balancing energy capture and protection from light stress in plants and alga
doi.org
July 24, 2026 at 7:17 PM
abioticstress.bsky.social
Combination of #abiotic stresses accelerates #photoprotection in exceptionally #chilling tolerant C4 #grass by fine tuning content of multiple #pigments

academic.oup.com/jxb/advance-...

#PlantScience @jxbotany.bsky.social @sebiology.bsky.social @plant-sci.bsky.social @plantstress.bsky.social
Combination of abiotic stresses accelerates photoprotection in exceptionally chilling tolerant C4 grass by fine tuning content of multiple pigments
Abstract. C4 grasses are crucial for food and biofuel production. Originating from warm regions of the world, C4-photosynthesizing plants typically exhibit
academic.oup.com
June 13, 2026 at 1:00 PM
abioticstress.bsky.social
Combination of #abiotic stresses accelerates #photoprotection in exceptionally #chilling tolerant C4 #grass by fine tuning content of multiple #pigments

academic.oup.com/jxb/advance-...

#PlantScience @jxbotany.bsky.social @plant-sci.bsky.social @plantscience.bsky.social @plantstress.bsky.social
Combination of abiotic stresses accelerates photoprotection in exceptionally chilling tolerant C4 grass by fine tuning content of multiple pigments
Abstract. C4 grasses are crucial for food and biofuel production. Originating from warm regions of the world, C4-photosynthesizing plants typically exhibit
academic.oup.com
June 2, 2026 at 2:46 PM
wrycritic.bsky.social
Melanin, a cool multi-functional biomolecule, from colouration to retinal photoprotection to organ microbial defence. I do wonder how and why, researchers, at the point of study conception, decide to study: are darker individuals more aggressive? Is it the question you really want to ask.
Testosterone and melanin-based black plumage coloration: a comparative study Does the tie fit the female? Melanin-based colouration, aggressive personality and reproductive investment in female great tits (Parus major) Melanin-based colour polymorphism signals aggressive personality in nest and territory defence in the tawny owl (Strix aluco)
April 23, 2026 at 6:33 AM
jxbotany.bsky.social
RESEARCH: 'Photosynthesis and photoprotection in top leaves respond faster to irradiance fluctuations than bottom leaves in a tomato canopy' - Bingjie Shao et al, doi.org/10.1093/jxb/...
Photosynthesis and photoprotection in top leaves respond faster to irradiance fluctuations than bottom leaves in a tomato canopy
In a tomato canopy, leaves in the upper layers respond faster to fluctuating light, but dynamic photosynthesis across all leaf layers can accurately be cap
doi.org
January 16, 2025 at 1:01 PM
giossichiara.bsky.social
📣📣📣 My @dfg.de Walter Benjamin Position has been funded 🥳🙏 In the next two years at the Institute for Molecular Photosynthesis @hhu.de I will be investigating how specialised enzymes balance photoprotection and carotenoid biosynthesis in marine diatoms. The journey begins! ☀️👩🏻‍🔬
July 22, 2026 at 9:22 AM
laurasalavessa.bsky.social
This baby is finally out! Our study in @natcellbio.nature.com shows how keratinocytes use intermediate filaments and microtubules to control melanin positioning for optimal photoprotection. A real tour de force, together with Silvia Benito-Martínez and @delevoyecedric.bsky.social.
Keratin intermediate filaments mechanically position melanin pigments for genome photoprotection - Nature Cell Biology
Benito-Martínez, Salavessa and colleagues show that keratin intermediate filaments and microtubules control the three-dimensional perinuclear position of melanin-containing organelles, shielding the D...
www.nature.com
December 15, 2025 at 9:53 PM
astrobiology.bsky.social
Modeling Photoprotection of Ultraviolet C Radiation by Ferric Ions and Implications for the Habitability of Ancient Martian Lakes
astrobiology.com/2025/12/mode... #astrobiology #mars #radiation
Modeling Photoprotection of Ultraviolet C Radiation by Ferric Ions and Implications for the Habitability of Ancient Martian Lakes - Astrobiology
On Mars, the amount of ultraviolet C (UVC) radiation that reaches the surface is sufficiently deleterious for life as we know it
astrobiology.com
December 10, 2025 at 7:48 PM
sjb287.bsky.social
When you start looking nature has many surprises - in this collaboration with colleagues at ORNL we started screening poplar for variation in photoprotection to perform GWAS - we got hits but not what we expected 1/n doi.org/10.1016/j.de... #plantsci #photosynthesis
Redirecting
doi.org
December 7, 2024 at 5:19 PM
inem-necker.bsky.social
[PUBLICATION] The @membramics-lab.bsky.social team shows how keratin is involved in melanin genome photoprotection at the cell level.

👏🏼 Co-1st authors: Silvia Benito Martinez & @laurasalavessa.bsky.social

🔗 doi.org/10.1038/s415...
📰 Read more on INEM's LinkedIn, and website: tinyurl.com/yr9pntvb
December 19, 2025 at 3:22 PM
mariaermakova.bsky.social
📢Preprint alert! We found a new PGRL1 paralog which evolved in grasses. Modelling suggests it has a distinct lumen-exposed region, compared to ‘conventional’ PGRL1, which could provide faster regulation of photoprotection. The two PGRL1s are expressed in different cell types in NADP-ME C4 grasses!
Predicted structures of two versions of PGRL1 protein with the difference in a small region.
December 4, 2024 at 6:29 AM
delevoyecedric.bsky.social
@natcellbio.nature.com - Finally out! Skin cells mechanically protect their genome from UV by positioning melanin above nucleus. Keratin filaments & microtubules drive the process. Led by Silvia Benito-Martinez & @laurasalavessa.bsky.social @membramics-lab.bsky.social www.nature.com/articles/s41...
Keratin intermediate filaments mechanically position melanin pigments for genome photoprotection - Nature Cell Biology
Benito-Martínez, Salavessa and colleagues show that keratin intermediate filaments and microtubules control the three-dimensional perinuclear position of melanin-containing organelles, shielding the D...
www.nature.com
December 15, 2025 at 6:17 PM
biorxiv-plants.bsky.social
Sustained photoprotection involves enhanced fluorescence intermittency in a subpopulation of LHCII https://www.biorxiv.org/content/10.64898/2026.08.24.746725v1
August 25, 2026 at 3:01 PM
yokoyama-ryo.bsky.social
Importance of cysteine residues in the C-terminal region of PGRL1 for PSI photoprotection in Chlamydomonas reinhardtii academic.oup.com/plphys/artic... @plantphys.bsky.social
Importance of cysteine residues in the C-terminal region of PGRL1 for PSI photoprotection in Chlamydomonas reinhardtii
Proper conformation of the C-terminal region of PROTON GRADIENT REGULATION5 (PGR5)-LIKE1 is essential for PGR5 accumulation, which mediates photosystem I p
academic.oup.com
March 25, 2026 at 7:44 PM
alealbo.bsky.social
New preprint on moss photoprotection from Claudia Beraldo PhD work! 🍀🌞
#Physcomitrium patens has multiple photoprotective strategies to acclimate under high & fluctuating light.
#Photosynthesis #Photoprotection @tmoro.bsky.social

shorturl.at/zc53u
Additive effects of multiple photoprotective mechanisms drive efficient photosynthesis under variable light conditions
To cope with changing external conditions, plants undergo dynamic acclimation processes that remodel their photosynthetic machinery, optimizing energy use while minimizing damage to photosystems (PS)....
shorturl.at
March 21, 2025 at 1:45 PM
yokoyama-ryo.bsky.social
Cyclic electron flow around photosystem I provides energy production and photoprotection in C4 plants academic.oup.com/plphys/artic... @plantphys.bsky.social
Cyclic electron flow around photosystem I provides energy production and photoprotection in C4 plants
Two cyclic electron transport pathways around photosystem I dependent on PGR5/PGRL1 and NDH synergistically contribute to the photoprotection of photosyste
academic.oup.com
March 17, 2026 at 5:42 PM