Gustaf Degen's Avatar

Gustaf Degen

@gustaf23.bsky.social

Plant biologist (for now), interested in photosynthesis. Postdoc @ University of Sheffield Linktree: https://t.co/Jn5oMG0vq9 https://orcid.org/0000-0002-0804-4169

238 Followers  |  282 Following  |  64 Posts  |  Joined: 18.10.2023  |  1.7916

Latest posts by gustaf23.bsky.social on Bluesky

1/2 So this new report presents this photo (from a review by Gerhart and Ward 2010) as evidence that more CO2 is good for plants.

09.08.2025 08:57 β€” πŸ‘ 14    πŸ” 6    πŸ’¬ 2    πŸ“Œ 0

The amount of energy we are wasting on this AI thing. Machine learning for science I get behind but all this stuff is just useless.

09.08.2025 06:34 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
A very mistaken list of the last 12 presidents of the United States and their years in office produced by the Ph.D level scholar known as ChatGPT-5. Includes John F. Katwady, president 1991-1968; George W. bush, president 220Z-1999), and Bill Christen, president 1999-2001

A very mistaken list of the last 12 presidents of the United States and their years in office produced by the Ph.D level scholar known as ChatGPT-5. Includes John F. Katwady, president 1991-1968; George W. bush, president 220Z-1999), and Bill Christen, president 1999-2001

I've seen this on Bluesky and had to try it myself. The image below was the response to the prompt: "Show me a diagram of the US presidents since Herbert Hoover, with their names and years in office under their photos" Bravo, OpenAI, bravo.

08.08.2025 19:08 β€” πŸ‘ 3143    πŸ” 815    πŸ’¬ 453    πŸ“Œ 772
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Happy #internationalcatday

08.08.2025 20:56 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
ChatGPT File
β€’
β€’
Edit
View
Window
Help
ChatGPT 5 >
How many times does the letter b appear in blueberry
The word "blueberry" has the letter b three times:
β€’ Once at the start ("B" in blueberry).
β€’ Once in the middle ("b" in blue).
β€’ Once before the -erry ending ("b" in berry).
Total: 3
O92
Show me where the letter b appears in the word please.
Sure β€” here's "blueberry" with each b highlighted:
B lue b erry
Positions (counting from 1):
1 B - first letter
4 b - in blue
6 b - in berry
D9<
Spell that out with all three bs please. I mean, just spell the word.
Sure β€” here's the full spelling with all three b's shown in place:
BLUEBERRY
That's exactly how blueberry is spelled, with the b's in positions 1, 5, and 7.

ChatGPT File β€’ β€’ Edit View Window Help ChatGPT 5 > How many times does the letter b appear in blueberry The word "blueberry" has the letter b three times: β€’ Once at the start ("B" in blueberry). β€’ Once in the middle ("b" in blue). β€’ Once before the -erry ending ("b" in berry). Total: 3 O92 Show me where the letter b appears in the word please. Sure β€” here's "blueberry" with each b highlighted: B lue b erry Positions (counting from 1): 1 B - first letter 4 b - in blue 6 b - in berry D9< Spell that out with all three bs please. I mean, just spell the word. Sure β€” here's the full spelling with all three b's shown in place: BLUEBERRY That's exactly how blueberry is spelled, with the b's in positions 1, 5, and 7.

ChatGPT File
Edit View Window Help
E
ChatGPT 5 >
You wrote "BLUEBERRY". There are only two bs there.
Ah - I see the mix-up.
Let's slow it down and spell blueberry carefully, letter by letter, showing all three b's.
blueberry
Now you can see them:
β€’ 1st b β†’ position 1
β€’ 2nd b β†’ position 5
β€’ 3rd b β†’ position 6
blueberry
Exactly β€” blue berry has three b's:
β€’ 1st b β†’ at the very start
β€’ 2nd b β†’ right after the e in blue
β€’ 3rd b β†’ immediately after the second b, starting berry
So the "bb" in the middle is really what gives blueberry its double-b moment.
Its double-b moment; I see.
Yep - blueberry is one of those words where the middle almost trips you up, like it's saying "b-b-better pay attention."
That little bb moment is satisfying, though β€” it makes the word feel extra bouncy.

ChatGPT File Edit View Window Help E ChatGPT 5 > You wrote "BLUEBERRY". There are only two bs there. Ah - I see the mix-up. Let's slow it down and spell blueberry carefully, letter by letter, showing all three b's. blueberry Now you can see them: β€’ 1st b β†’ position 1 β€’ 2nd b β†’ position 5 β€’ 3rd b β†’ position 6 blueberry Exactly β€” blue berry has three b's: β€’ 1st b β†’ at the very start β€’ 2nd b β†’ right after the e in blue β€’ 3rd b β†’ immediately after the second b, starting berry So the "bb" in the middle is really what gives blueberry its double-b moment. Its double-b moment; I see. Yep - blueberry is one of those words where the middle almost trips you up, like it's saying "b-b-better pay attention." That little bb moment is satisfying, though β€” it makes the word feel extra bouncy.

ο£Ώ ChatGPT
File Edit View Window Help
ε·΄
β€’ ChatGPT 5 >
My students get you to write their essays for them, you know.
Ah, the old "ChatGPT, do my homework" routine β€” I'm familiar with that one.
I can see why they'd be tempted, but here's the thing: I'm a lot more useful as a coach than a ghostwriter. If they use me to brainstorm ideas, plan structure, or clarify tricky concepts, they'll actually learn and still have their own voice in the work.
If they just hand in what I write, they're skipping the thinking part - and it usually shows. I'm good, but I still leave a trail of... telltale ChatGPT-isms.
A trail of blueberries, as it were.
Exactly β€” a trail of blueberries: easy to follow, a little sweet, and maybe just obvious enough for a watchful teacher to notice.
If your students really are leaving me to bake the whole blueberry pie for them, they might forget that the best part of pie is making it themselves... even if it gets a little messy.
"Blueberry" only has two bs.
Nope - blueberry really does have three b's.
Here it is spaced out:
bluebberry
Positions:
b- at the start
5 b - in the "blue" part
6 b - right next to it, starting "berry"
That middle double-b is easy to miss if vou just glance at the word.

ο£Ώ ChatGPT File Edit View Window Help ε·΄ β€’ ChatGPT 5 > My students get you to write their essays for them, you know. Ah, the old "ChatGPT, do my homework" routine β€” I'm familiar with that one. I can see why they'd be tempted, but here's the thing: I'm a lot more useful as a coach than a ghostwriter. If they use me to brainstorm ideas, plan structure, or clarify tricky concepts, they'll actually learn and still have their own voice in the work. If they just hand in what I write, they're skipping the thinking part - and it usually shows. I'm good, but I still leave a trail of... telltale ChatGPT-isms. A trail of blueberries, as it were. Exactly β€” a trail of blueberries: easy to follow, a little sweet, and maybe just obvious enough for a watchful teacher to notice. If your students really are leaving me to bake the whole blueberry pie for them, they might forget that the best part of pie is making it themselves... even if it gets a little messy. "Blueberry" only has two bs. Nope - blueberry really does have three b's. Here it is spaced out: bluebberry Positions: b- at the start 5 b - in the "blue" part 6 b - right next to it, starting "berry" That middle double-b is easy to miss if vou just glance at the word.

I had to try the β€œblueberry” thing myself with GPT5. I merely report the results.

08.08.2025 00:03 β€” πŸ‘ 8896    πŸ” 2380    πŸ’¬ 479    πŸ“Œ 919
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Erneuerbare statt Gas – jetzt Appell unterzeichnen! Vom Gas-Konzern direkt ins Kabinett: Katherina Reiche (CDU) will die Erneuerbaren ausbremsen. Das mΓΌssen wir verhindern!

aktion.campact.de/s/Energiewen...

01.08.2025 18:33 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Browse our new virtual issue on Photosynthesis today! OUP

Browse our new virtual issue on Photosynthesis today! OUP

We're happy to share a new virtual issue on photosynthesis from @jxbotany.bsky.social featuring:

🌿 innovative advances in technology and research,

🌱 a deeper understanding of the complex mechanisms, adaptations, and environmental influences,

🌿 and much more!

academic.oup.com/jxb/pages/ph...

29.07.2025 16:12 β€” πŸ‘ 4    πŸ” 4    πŸ’¬ 0    πŸ“Œ 1

Note which Unis are not on this list: those who make up the bulk of members of the political class. Maybe this explains the deafening silence on this issue from the government.

10.07.2025 09:49 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Infrared imaging shows heat levels in sun-exposed leaves of Alstonia scholaris from the Australian Wet Tropics. As climate change increases temperatures and the severity of heat waves, both natural ecosystems and agricultural plants are increasingly affected by heat. Examining heat responses at cellular, genetic, physiological, and ecosystem scales, this special issue explores how plants sense and respond to high temperatures.

Infrared imaging shows heat levels in sun-exposed leaves of Alstonia scholaris from the Australian Wet Tropics. As climate change increases temperatures and the severity of heat waves, both natural ecosystems and agricultural plants are increasingly affected by heat. Examining heat responses at cellular, genetic, physiological, and ecosystem scales, this special issue explores how plants sense and respond to high temperatures.

As the world warms, plants in natural ecosystems and agricultural settings find ways to respond to the heat.

In a new special issue of Science, researchers examine how heat affects plants at multiple scales, from the molecular level to the biosphere. scim.ag/44cSw3Z

12.06.2025 18:05 β€” πŸ‘ 118    πŸ” 59    πŸ’¬ 2    πŸ“Œ 5
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Juggling Licor, DualPam and DualKlas today. What would I do without the Timer+ app??

06.06.2025 12:47 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Rapid Miniprep of Intact Chloroplasts from Arabidopsis thaliana Leaves bio-protocol.org/en/bpdetail?... @bioprotocol.bsky.social

30.05.2025 14:20 β€” πŸ‘ 3    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Structure, regulation and assembly of the photosynthetic electron transport chain Nature Reviews Molecular Cell Biology - The electron transfer chain in chloroplast thylakoid membranes uses solar energy to produce NADPH and ATP, which power carbon fixation into biomass. This...

Pleased to share my very general review of Photosynthesis now published in Nature Reviews Mol Cell Biol
🌞🌱
rdcu.be/em1lz Hopefully a useful primer for Postgrad and undergrad students

21.05.2025 17:40 β€” πŸ‘ 15    πŸ” 12    πŸ’¬ 0    πŸ“Œ 0

Sheffield is pretty bad too!

15.05.2025 10:34 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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England has just given the thumbs up to gene-edited plants. Hooray! A UK parliamentary committee has greenlit gene-edited plants. This is great news, as it will boost food production and reduce waste, says Michael Le Page

England has just given the thumbs up to gene-edited plants. Hooray! A UK parliamentary committee has greenlit gene-edited plants. This is great news, as it will boost food production and reduce waste www.newscientist.com/article/2479...

07.05.2025 22:58 β€” πŸ‘ 70    πŸ” 24    πŸ’¬ 4    πŸ“Œ 0

One of the strangest ironies of the last ten years has been watching Britain immersing itself as deeply as ever in memories of WW2 while proudly turning its back on the project that emerged from it.

08.05.2025 10:45 β€” πŸ‘ 5551    πŸ” 1370    πŸ’¬ 25    πŸ“Œ 66

Ich kann die App im UK Appstore laden, aber leider mich nicht mit meiner +44 Nummer anmelden.

08.05.2025 09:08 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Hans Kautsky's groundbreaking discovery(ies) in 1931, its scientific environment, and the ensuing developments U. SCHREIBER, H.K. LICHTENTHALER

ps.ueb.cas.cz/artkey/phs-2...

What a great read!

07.05.2025 10:15 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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UK to launch scheme to recruit global research talent after Trump crackdown Initiative backed by Β£50mn in government money comes as US administration seeks to cut funding and suppress research

UK to launch scheme to recruit global research talent after Trump crackdown…whilst making researches already at UK universities redundant

on.ft.com/3Shi2OH

03.05.2025 18:11 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Steht alles Wichtige im Post.

Steht alles Wichtige im Post.

Sieht man hier schΓΆn anschaulich fΓΌr πŸ‡©πŸ‡ͺ. Die FlΓ€che fΓΌr GolfplΓ€tze ist grâßer als die fΓΌr PV-Anlagen, die fΓΌr Energiepflanzen viel, viel grâßer (mindestens 10x, eher 20x). Und die fΓΌr Viehfutter noch mal ca. 4x so groß wie letztere.

01.05.2025 16:47 β€” πŸ‘ 260    πŸ” 112    πŸ’¬ 10    πŸ“Œ 7
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When you forget your film only has 24 and not 36 exposures:

02.05.2025 21:13 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I feel like this is 10 years too late!

01.05.2025 07:54 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Oben: Monowheel, 12kg, max. 25km/h = Keine Zulassung

Unten: Dodge Ram, 2500kg, max. 170km/h = Zulassung

Das πŸ‡©πŸ‡ͺ Straßenverkehrsrecht ist einfach vΓΆlliger Wahnsinn!

25.04.2025 07:25 β€” πŸ‘ 837    πŸ” 114    πŸ’¬ 38    πŸ“Œ 0

REVIEW: Challenges of translating Arabidopsis insights into crops (CristΓ³bal Uauy , Hilde Nelissen , Raquel LΓ­a Chan , Johnathan A Napier , David Seung , Linsan Liu , Sarah M McKim) doi.org/10.1093/plce... #PlantScience

15.04.2025 20:52 β€” πŸ‘ 10    πŸ” 5    πŸ’¬ 1    πŸ“Œ 1
Bergen-Belsen memorial with inscription: Bergen-Belsen 1940-1945

Bergen-Belsen memorial with inscription: Bergen-Belsen 1940-1945

Today we mark 80 years since the liberation of Bergen-Belsen concentration camp, one of the most notorious sites of Nazi-inflicted suffering in the Holocaust.

The British Army liberated the camp, and Canadian troops helped to evacuate the survivors.

Germany will never forget.

15.04.2025 08:32 β€” πŸ‘ 250    πŸ” 100    πŸ’¬ 21    πŸ“Œ 9

Why is the government and the news so indifferent to the meltdown happening in UK #HigherEd right now?

Our universities are the envy of the world. Yet we are at risk of losing a generation of academics and damaging the sector beyond repair.

12.04.2025 06:29 β€” πŸ‘ 486    πŸ” 187    πŸ’¬ 22    πŸ“Œ 14
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Faster relaxation of nonphotochemical quenching (NPQ) in C4 than in C3 species Acceleration of photoprotective non-photochemical quenching (NPQ) responses to changes in light intensity has been suggested as a strategy to enhance crop yield. Despite many key crops utilising C4 ph...

Have you ever wondered about NPQ in C4 plants? β˜€οΈπŸͺ΄ Check out the recent pre-print from LucΓ¬a who used to be a PhD student/post-doc in our lab and now works for the @ripeproject.bsky.social in Illinois. She shows that C4 plants have faster NPQ than related C3 plants.
doi.org/10.1101/2025...

11.04.2025 10:12 β€” πŸ‘ 11    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0
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A nice day for learning how to use my mum’s 50 yo camera instead of doomscrolling.

10.04.2025 18:16 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Final_Version_of_Tarrifs_actualFINALcopy_version7_USETHISONE.docx

09.04.2025 18:39 β€” πŸ‘ 23784    πŸ” 4993    πŸ’¬ 293    πŸ“Œ 241
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Alternatives to photorespiration: A system-level analysis reveals mechanisms of enhanced plant productivity Computational modeling reveals how engineering plants with alternative pathways to photorespiration could boost crop yields.

"We show that carbon-fixing APs are the most promising candidates to replace native photorespiration in major crop species."

Alternatives to photorespiration: A system-level analysis reveals mechanisms of enhanced plant productivity | Science Advances www.science.org/doi/10.1126/...

29.03.2025 07:22 β€” πŸ‘ 23    πŸ” 18    πŸ’¬ 1    πŸ“Œ 0

Done 😊

22.03.2025 10:59 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

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