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Posts by Luke Gregory

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Diel-driven variations of leaf dark respiration and metabolite levels in C3 and C4 grasses Leaf dark respiration varies over diel cycle and reflects coordinated metabolic shifts, making daytime dark-adapted measurements poor proxies for true nigh

Diel-driven variations of leaf dark respiration and metabolite levels in C3 and C4 grasses academic.oup.com/plphys/artic... @plantphys.bsky.social

1 week ago 1 1 0 0
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Functional divergence of LhcSR and PsbS in zeaxanthin‐mediated non‐photochemical quenching To protect photosystem II from excess light, non-photochemical quenching (NPQ) dissipates excess energy as heat. NPQ relies on trigger proteins, LhcSR in algae and PsbS in vascular plants, and the l.....

Functional divergence of LhcSR and PsbS in zeaxanthin‐mediated non‐photochemical quenching nph.onlinelibrary.wiley.com/doi/10.1111/... @newphyt.bsky.social

1 week ago 2 2 0 0

I was taught rubisco is the proper nomenclature from Tom Sharkey (like we do not capitalize any of the letters in laser or scuba, but both are acronyms - so why do it for rubisco)

You would never catch me using RuBisCO! That’s crazy

1 week ago 1 0 0 0

The Role of Phosphoenolpyruvate Carboxylase-Protein Kinase in C4 Photosynthesis: Insights from Zea mays Mutant Analysis www.biorxiv.org/content/10.6...

3 weeks ago 0 1 0 0
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Understanding plant resilience by putting photosynthesis and photorespiration in the metabolic context - Planta Main conclusion Photorespiration is a dynamic metabolic process that contributes to energy balance, stress resilience, and nutrient flux, warranting its integration into genome-scale models to enhance...

Understanding plant resilience by putting photosynthesis and photorespiration in the metabolic context link.springer.com/article/10.1...

1 month ago 0 1 0 0
Fig.4 Opportunities to link high-throughput phenotyping (HTP) with process-based model (PBM) of plant growth.

Fig.4 Opportunities to link high-throughput phenotyping (HTP) with process-based model (PBM) of plant growth.

✨ Paper spotlight ✨

(🧵 1/7) Beyond high-throughput: leveraging plant phenotyping to improve understanding and prediction of plant growth through process-based models
nph.onlinelibrary.wiley.com/doi/10.1111/...

1 month ago 0 1 1 0
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New OA Article: "Photorespiration is linked to DNA methylation by formate as a one-carbon source" rdcu.be/e6oUz

Arabidopsis reassimilates formate produced during photorespiration via the cytosolic folate cycle to fuel DNA methylation: a metabolic–epigenetic bridge.

1 month ago 7 2 0 0

Looking for advice on measuring net carbon fixation in a CAM species (Kalanchoe) using a LI-6800. I have experience with the instrument, but not with CAM plants.

Any tips on optimizing chamber conditions, timing relative to the diel cycle, or leaf/plant attachment to the 6800?

2 months ago 1 0 2 0
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Redox modulation of PGLP1 oligomerization mediated by thioredoxin f is crucial for plant responses to high light and fluctuating light A redox-dependent post-translational modification mechanism fine-tunes the activity of phosphoglycolate phosphatase, which catalyzes the initial step of the photorespiratory pathway, the conversion o...

Redox modulation of PGLP1 oligomerization mediated by thioredoxin f is crucial for plant responses to high light and fluctuating light onlinelibrary.wiley.com/doi/10.1111/... @jipb.bsky.social

2 months ago 5 5 0 0

If you're into genomes and crop physiology, we've a new paper out! High-throughput screen of photoprotective kinetics in sorghum, and candidate genes underlying NPQ traits: doi.org/10.1002/pei3.70114
Big thanks to a great group of coauthors who helped make it possible.
#PlantScience #PlantBiology

3 months ago 3 1 0 0
IsoCamp – two-week short-course with hands-on training in the application of stable isotopes to the biological, geological, and anthropological sciences.

We are now accepting applications for #IsoCamp2026! Join us in beautiful New Mexico June 15th-26th to learn about stable isotopes from expert instructors and get hands-on instrument training. The application deadline is February 28th. For more information, or to apply, go to isocamp.org. Pls share!

3 months ago 7 9 0 1
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Atomic resolution structure of spinach rubisco reveals protons and dynamics Photosynthetic organisms sustain life on Earth by storing solar energy in biomass. Central to this process is rubisco, the enzyme that catalyses the fixation of CO2 to ribulose-1,5-bisphosphate, provi...

Atomic resolution structure of spinach rubisco reveals protons and dynamics

@cblikstad.bsky.social

www.biorxiv.org/content/10.6...

3 months ago 12 4 0 0

I hope this isn’t the start of a broader shift toward subscription-based research.

4 months ago 0 0 0 0

Unfortunately, this change means I’ll be stepping away from using the MultispeQ unless PhotosynQ moves back to an open, data-accessible model.

It’s difficult for me to reconcile the new business model with how I approach research. (4/4)

4 months ago 1 0 1 0

Recently, a device I purchased about a year and a half ago (~$2,800; MultispeQ) became functionally unusable unless I enroll in a monthly subscription due to a business-model shift. While I understand that companies evolve, this effectively removes access to a tool I already paid for. (3/4)

4 months ago 0 0 1 0

I’ve seen several cases this year where researchers pay for hardware, only to later be required to enroll in ongoing subscriptions to contribute, or manage their own data. This creates a barrier to open, reproducible science and restricts participation to those who can afford recurring fees. (2/4)

4 months ago 0 0 1 0

I want to share a concern about the growing shift toward subscription-based business models for scientific research tools.

I strongly believe that purchasing a scientific instrument should include open access to the data you measure with it. (1/4)

4 months ago 2 0 1 0
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Stomata In-Sight: Integrating Live Confocal Microscopy with Leaf Gas Exchange and Environmental Control The development of a tool to simultaneously measure stomatal conductance and aperture enables investigation into the role of stomatal anatomy in controllin

Stomata In-Sight: Integrating Live Confocal Microscopy with Leaf Gas Exchange and Environmental Control url: academic.oup.com/plphys/artic... @tombuckleylab.bsky.social @lawrensack.bsky.social @sheffieldpps.bsky.social @scottmcadam.bsky.social @stanfordstomata.bsky.social

4 months ago 22 9 1 0
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Can anyone help:

I want to take photos of arabidopsis rosettes everyday as they grow to get growth curves for a lot of ecotypes. Does anyone know of software that can be used to read the label from inside the photo and rename the file with the plant ID and then amend the date to the file name too?

5 months ago 4 9 6 1
MSU’s new Plant and Environmental Sciences building construction underway
MSU’s new Plant and Environmental Sciences building construction underway MSU’s new Plant and Environmental Sciences building, which began construction in Oct. 2024, is set to be finished in early March 2027. On the corner of Farm and Wilson, the facility is being built to…

MSU’s new Plant and Environmental Sciences building is set to be finished in early March 2027. WDBM’s Liam Clymer spoke with students and faculty to understand the importance of the facility and its symbolic meaning to campus.

Watch the video here: youtu.be/j2eHzegByJU?...

5 months ago 1 2 0 0
Reactions, processes, and parameters controlling C4 photosynthetic flux in the NADP-ME subtype.

Reactions, processes, and parameters controlling C4 photosynthetic flux in the NADP-ME subtype.

Tuning the C4 supercharger: improving #photosynthesis and #yield in C4 #crops

#TansleyReview by @mariaermakova.bsky.social, Robert E. Sharwood and Robert T. Furbank

nph.onlinelibrary.wiley.com/doi/10.1111/...

#PlantScience @monashbiol.bsky.social.

5 months ago 18 15 0 2
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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…

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

5 months ago 11 6 0 1
Professor Susanne von Caemmerer and Professor Graham Farquhar are receiving an award.

Professor Susanne von Caemmerer and Professor Graham Farquhar are receiving an award.

Plant scientists Professor Graham Farquhar and Professor Susanne von Caemmerer transformed the world's understanding of photosynthesis, and now they have been jointly awarded the Royal Medal (Biological) from The Royal Society, at a ceremony in London.

science.anu.edu.au/news-events/...

5 months ago 39 14 0 0
ArcGIS Web Application

Here is cool record of a lot of the trees on MSUs campus overlaid on a satellite map: msugis.maps.arcgis.com/apps/webappv...

5 months ago 1 0 0 0
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Rho GTPase overexpression impacts leaf internal architecture and mesophyll conductance in Arabidopsis Leaves are built from multiple cell types and are structured to enable the conversion of carbon dioxide and water into sugars in the process of photosynthesis. Understanding how cell architecture im.....

New paper - led by Isabella Østerlund

Rho-GTPase overexpression can impact the development of cell shape and airspace structure in Arabidopsis.

These genetic changes can also reduce photosynthesis, due to lower mesophyll conductance

nph.onlinelibrary.wiley.com/doi/10.1111/...

6 months ago 8 5 0 1
A schematic diagram illustrating the use of photosynthetic optical signals to measure plant biogenic volatile organic compound (BVOC) emissions at (a) molecular, (b) leaf, and (c) ecosystem and regional scales.

A schematic diagram illustrating the use of photosynthetic optical signals to measure plant biogenic volatile organic compound (BVOC) emissions at (a) molecular, (b) leaf, and (c) ecosystem and regional scales.

Connecting optical #RemoteSensing of plant #photosynthesis with biogenic volatile organic compound #emissions

#Viewpoint by Zhang, et al.

📖 nph.onlinelibrary.wiley.com/doi/10.1111/...

#PlantScience

7 months ago 11 2 0 0
(a) Forests vertical stratification illustrating variation in photosynthetically active radiation. (b) Individual-level sampling approach using advanced tree climbing techniques to access different canopy levels and capture variations in absorbed PAR by measuring in situ leaf chlorophyll fluorescence at three different crown positions.

(a) Forests vertical stratification illustrating variation in photosynthetically active radiation. (b) Individual-level sampling approach using advanced tree climbing techniques to access different canopy levels and capture variations in absorbed PAR by measuring in situ leaf chlorophyll fluorescence at three different crown positions.

SIF research in the #tropics: the overlooked vertical dimension and its implications for interpretation and upscaling of #photosynthesis

📖 nph.onlinelibrary.wiley.com/doi/10.1111/...

👆 A Commentary by Sun, et al. on Ziccardi, et al. 👇

📖 nph.onlinelibrary.wiley.com/doi/10.1111/...

#LatestIssue

7 months ago 7 4 1 0
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New Article: "Metabolic flux analysis in leaf metabolism quantifies the link between photorespiration and one carbon metabolism" rdcu.be/eDWLH

C flux quantification between two major plant metabolisms—photorespiration and C1 metabolism—using 13CO2 labelling and...

7 months ago 3 2 1 0

I am so happy about this you would think I won the award myself. What a well deserved honour for pioneers of the field.

7 months ago 9 2 0 0
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Addition of longer wavelength absorbing chlorophylls into crops could increase their photosynthetic productivity by 26% - Nature Communications Incorporation of the far-red light adaptation of cyanobacteria into crops has been suggested as a potential strategy to increase photosynthesis and yields, but the magnitude of this benefits has not b...

Addition of longer wavelength absorbing chlorophylls into crops could increase their photosynthetic productivity by 26% www.nature.com/articles/s41... @natcomms.nature.com

7 months ago 1 1 0 0