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Karolina Heyduk

@kheyduk

Assistant Prof UConn EEB | CAM photosynthesis keeps me up at night | made of cookies | She/her. Views my own.

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Latest posts by Karolina Heyduk @kheyduk

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An unconventional Rubisco small subunit underpins the CO2-concentrating organelle in land plants In many algae, photosynthesis is boosted by biophysical CO2-concentrating mechanisms, which pack the CO2-fixing enzyme Rubisco into liquid-like organelles called pyrenoids. Engineering C3 crops with a...

Our work on #hornwort #pyrenoids is finally out in @science.org! πŸŽ‰ We uncovered how hornworts pack their Rubisco into pyrenoids and successfully recreated them in Arabidopsis. A key step toward engineering more efficient photosynthesis in crops @btiscience.bsky.social www.science.org/doi/10.1126/...

05.03.2026 20:03 πŸ‘ 104 πŸ” 55 πŸ’¬ 5 πŸ“Œ 6

A billion dollars a day to commit wholesale slaughter, not a single fucking penny for health care. America, 2026.

04.03.2026 22:14 πŸ‘ 212 πŸ” 94 πŸ’¬ 9 πŸ“Œ 4

**screams**

04.03.2026 22:42 πŸ‘ 10 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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a large screen shows a man 's face and says ingsoc ALT: a large screen shows a man 's face and says ingsoc

So... A friend was supposed to give a PURELY SCIENTIFIC talk at NIH within the next couple of weeks and it was cancelled because of a "new process" where all speakers/talks have to be CLEARED BY A POLITICAL APPOINTEE.

04.03.2026 14:52 πŸ‘ 551 πŸ” 240 πŸ’¬ 26 πŸ“Œ 28

Lol no. Just unpleasant strings of consonants.

04.03.2026 16:15 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Skyclub hard boiled egg returning me to life right now 🫠

04.03.2026 14:33 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

My mom learned English as an adult and we would tease her when she said "fishes." She was so delighted when I one day told her that sometimes her usage of fishes was actually correct!

04.03.2026 13:10 πŸ‘ 7 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I think our season is already over! 😭

04.03.2026 13:08 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Enabling Fieldwork for All (EFFA) Framework: Supporting physical, social, financial, and psychological safety in the field Comprehensive review of fieldwork safety literature across disciplines yields synthesized recommendations.

Excited to share a new paper written by a AAAS Policy Fellow I mentor, Dr. Lisa Walsh.

β€œThis review synthesizes literature on fieldwork safety across scientific disciplines, highlighting four facets of safety for leaders and researchers to address: physical, social, financial, and psychological.”

04.03.2026 00:34 πŸ‘ 38 πŸ” 22 πŸ’¬ 0 πŸ“Œ 0

The president of the uni, opening an email with hopes that we are staying warm while watching UConn athletics and "supporting..our coaches," all while staff face looming cuts, is a wild choice.

03.03.2026 19:45 πŸ‘ 8 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I simultaneously want to be back home, but also not, because *waves vaguely at everything*

03.03.2026 18:23 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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after absolutely eviscerating Kristi Noem and calling for her resignation, Tillis is applauded. He thens threatens to hold up nominees if she doesn't stop stonewalling him. My God.

03.03.2026 17:55 πŸ‘ 24774 πŸ” 6083 πŸ’¬ 1100 πŸ“Œ 759
Square graphic featuring a close-up pink and purple flower background. The Botanical Society of America logo appears at the top. Centered text reads β€œBSA Impact Award” and β€œDeadline May 1, 2026.” A description states that the award honors a BSA member, group, or institution for impactful work that builds a more inclusive and engaged community in botanical research and education, including efforts that influence practices and policies or expand access to knowledge and resources through research, teaching, or outreach. A link to www.botany.org/home/awards.html appears at the bottom.

Square graphic featuring a close-up pink and purple flower background. The Botanical Society of America logo appears at the top. Centered text reads β€œBSA Impact Award” and β€œDeadline May 1, 2026.” A description states that the award honors a BSA member, group, or institution for impactful work that builds a more inclusive and engaged community in botanical research and education, including efforts that influence practices and policies or expand access to knowledge and resources through research, teaching, or outreach. A link to www.botany.org/home/awards.html appears at the bottom.

Nominations are open for the BSA Impact Award!

This award honors a BSA member, group, or institution whose work expands access, strengthens community, and improves practices in botanical research and education.

Nomination Deadline: May 1, 2026
Learn more, here: botany.org/home/awards/...

20.02.2026 21:24 πŸ‘ 9 πŸ” 8 πŸ’¬ 0 πŸ“Œ 0

I let out an audible gasp.

What in the absolute fuck.

There's a dark, dark, history of this. Of forced sterilization.

I am so, so sick.

02.03.2026 15:37 πŸ‘ 257 πŸ” 116 πŸ’¬ 2 πŸ“Œ 0
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🚨Two fully funded PhD opportunities in Australia!

Improving C4 photosynthesis in vegetation models.
Supervised by Dani Way (ANU, Canberra) and myself (UTS, Sydney).

1. Lab- and field-based project at ANU – see flyer below

2. Modelling project at UTS – www.findaphd.com/phds/project...

24.02.2026 00:41 πŸ‘ 14 πŸ” 26 πŸ’¬ 0 πŸ“Œ 2

🀩 perfect no notes

02.03.2026 16:27 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

HOW DARE YOU

02.03.2026 16:27 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

$300 Million in jet planes lost to a fuckup.

That’s 83 five year NIH R01 grants burned in minutes due to error, aka poor execution of this unnecessary war which serves only to make the world more dangerous.

02.03.2026 15:28 πŸ‘ 151 πŸ” 63 πŸ’¬ 0 πŸ“Œ 1

I'd like to remind everyone that CAM has evolved as many if not more times than C4. There are entire biomes where CAM is dominant. If you like tequila, or pineapple, or your pretty orchid you got at the grocery store, you can thank CAM.

Thank you for coming to my TEDtalk. Or CAMtalk as it were.

02.03.2026 15:31 πŸ‘ 38 πŸ” 8 πŸ’¬ 3 πŸ“Œ 0

How do you write a thing about photosynthetic pathways and not mention CAM. How.

02.03.2026 15:29 πŸ‘ 36 πŸ” 1 πŸ’¬ 6 πŸ“Œ 0

They're soooo goofy. Boulders is where we were today!

02.03.2026 15:25 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I am confident they are not CAM

02.03.2026 10:59 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Photo of a woman smiling in front of two African penguins, one standing and one loafing on a dune

Photo of a woman smiling in front of two African penguins, one standing and one loafing on a dune

PENGUINS

02.03.2026 10:30 πŸ‘ 49 πŸ” 2 πŸ’¬ 4 πŸ“Œ 0
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White House stalls release of approved US science budgets The US Congress rejected sweeping cuts to science agencies. But the NIH, the NSF and NASA have had their spending slowed.

Congress rejected massive cuts to US science budgets for 2026, but much of the money still isn’t flowing to researchers.

The culprit? The White House Office of Management and Budget (OMB) is quietly slow-walking the release of funds. πŸ§΅πŸ‘‡

27.02.2026 16:06 πŸ‘ 1052 πŸ” 711 πŸ’¬ 21 πŸ“Œ 75
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They went to war with Iran (which nobody in America was asking for) so they could conjure an excuse to allow ICE to keep murdering Americans and teargassing schools here at home with impunity (which nobody in America was asking for).

01.03.2026 15:06 πŸ‘ 19418 πŸ” 6076 πŸ’¬ 1670 πŸ“Œ 478
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Chris Murphy: "This is a disaster. It's illegal."

01.03.2026 16:00 πŸ‘ 4931 πŸ” 1147 πŸ’¬ 161 πŸ“Œ 58
A line graph showing NSF grant awards made through 2/27/26 for fiscal year 2026 compared with grant awards for fiscal years 2021-2025.

A line graph showing NSF grant awards made through 2/27/26 for fiscal year 2026 compared with grant awards for fiscal years 2021-2025.

NSF Update (Awards through 2/27/26)

Directorates to follow

1/10

01.03.2026 14:48 πŸ‘ 665 πŸ” 444 πŸ’¬ 28 πŸ“Œ 118

In a time of extreme division, I am glad we can be united by one trait: the inability to keep oneself from playing videos on your phone full volume in public spaces.

Worldwide phenomenon.

28.02.2026 11:55 πŸ‘ 13 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Wtf. Why not. WHY NOT

28.02.2026 11:44 πŸ‘ 10 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
An historic black and white illustration of a paper nautilus floating on the ocean. There are boats, a city and hills in the background.

An historic black and white illustration of a paper nautilus floating on the ocean. There are boats, a city and hills in the background.

πŸŽ‰ Huge news for BHL: The Field Museum is taking over the hosting of BHL’s website, servers & infrastructure, ensuring long-term stability and access for its 63+ million pages of open biodiversity literature. Learn more:
blog.biodiversitylibrary.org/2026/02/tran...
#BHLTransition #ILoveBHL 🌍 πŸ“š πŸ§ͺ

27.02.2026 14:31 πŸ‘ 343 πŸ” 137 πŸ’¬ 8 πŸ“Œ 25