this post was submitted on 08 Apr 2025
30 points (100.0% liked)

Ask Science

10063 readers
2 users here now

Ask a science question, get a science answer.


Community Rules


Rule 1: Be respectful and inclusive.Treat others with respect, and maintain a positive atmosphere.


Rule 2: No harassment, hate speech, bigotry, or trolling.Avoid any form of harassment, hate speech, bigotry, or offensive behavior.


Rule 3: Engage in constructive discussions.Contribute to meaningful and constructive discussions that enhance scientific understanding.


Rule 4: No AI-generated answers.Strictly prohibit the use of AI-generated answers. Providing answers generated by AI systems is not allowed and may result in a ban.


Rule 5: Follow guidelines and moderators' instructions.Adhere to community guidelines and comply with instructions given by moderators.


Rule 6: Use appropriate language and tone.Communicate using suitable language and maintain a professional and respectful tone.


Rule 7: Report violations.Report any violations of the community rules to the moderators for appropriate action.


Rule 8: Foster a continuous learning environment.Encourage a continuous learning environment where members can share knowledge and engage in scientific discussions.


Rule 9: Source required for answers.Provide credible sources for answers. Failure to include a source may result in the removal of the answer to ensure information reliability.


By adhering to these rules, we create a welcoming and informative environment where science-related questions receive accurate and credible answers. Thank you for your cooperation in making the Ask Science community a valuable resource for scientific knowledge.

We retain the discretion to modify the rules as we deem necessary.


founded 2 years ago
MODERATORS
 

It seems a little odd that other crops have been cultivated to literally suit people's tastes and interests, yet many trees...Seemingly not as much?

I recognize the growth cycles are much longer, in some(many?) cases far exceeding individual human lives, but whole civilizations have been relying on trees for ages. Have none, not even isolated parts of them, been stable enough to take on this experiment?

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 4 points 1 week ago (1 children)

Yes there definitely have been major breeding exercises. I've toured some tissue culture facilities where they produce 10k seedlings a day of some tree species like redwood or Doug fir. I know that facilities breeding program focused on redwoods for decades and I met their geneticist.

Also, poplar has undergone major breeding for the biofuels industry to come up with species that have less hemi cellulose and lignin for easier digestion in bioreactors. There have also been some start ups claiming to "hack" photosynthesis also using, I believe, poplar (it's like they don't know what oxygen is).

[–] [email protected] 1 points 1 week ago (1 children)

That's good to know, thanks!

I'll have to look into bioreactors more. I'm also not sure about that last sentence, but then it sounds like maybe they don't know what's up either (or how to communicate it).

[–] [email protected] 3 points 1 week ago

Basically, the molecular architecture of photo synthesis evolved in the absence of oxygen. It is severely inhibited by the presence of oxygen. Same goes for the enzymatic reaction to fix nitrogen. Basically oxygen fucked everything up

However oxygenic respiration is far more effective. You get way more atp bang for your rubisco sugar buck doing oxygenic respiration.

Likewise, you are splitting off oxygen as a terminal electron receptor in photosynthesis. So, shits just around.

Saying you are going to hack or solve photosynthesis us a great sales pitch. You can get a genetics company funded saying this, many have. But realistically, if anyone did "hack" or "solve" this (as if it's a problem needing solving), it would be a disaster. In the time period when plants had figured out photosynthesis and lignin, and before wood decomposing fungus, we had glaciers basically to the tropics. Not to mention, well, oxygen. You just aren't going to beat oxygen.