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- เผยแพร่เมื่อ 26 ธ.ค. 2024
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Plants may not seem like they live the most exciting lives, but two new papers published this week point to different types of plants that are actually very cunning and manipulative. One, the parasitic dodder, steals both nutrients and DNA from its host, and the other gives leaky gut syndrome to pests that try to eat it.
Hosted by: Hank Green
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Wear a tinfoil hat or use https
pff, all the pros encrypt their data 42 times...
@Scott Whatever you are bright as a sun...
I just posted a video featuring dodder no more than a month ago! Go figure. I'd seems some of it (a plant I learned about in college via plant pathology and happened to see some here in West Deptford). Fun fact! The seeds from dodder can survive for over 40 years...... Not so turn if you're a plant. If you see it, kill it early on (like most evil things that don't change for the better)
People should start talking about the direct effect of excess CO2 on plant material. plants (fruits and vegetables and everything else) are producing more carbohydrates in place of vital nutrients. *As CO2 rises our food is lowering in nutrients...*
www.ncbi.nlm.nih.gov/pmc/articles/PMC4036122/
www.politico.com/agenda/story/2017/09/13/food-nutrients-carbon-dioxide-000511
Nutrient density has lowered.
www.forbes.com/sites/fionamcmillan/2018/05/27/rising-co2-is-reducing-the-nutritional-value-of-our-food/#638fdc935133
Then I guess I'll call my roommate "Dodder".. because he keeps stealing my _jeans_
Get out
Oof
Dad stop
Stay
*Parasitic plant* for now.
*The Flood* later.
Originally, isn’t the flood just the precursor remnants with vengeance?
Why do I see you everywhere
Your more prominent than Justin y
@@biblebot3947 you're
@@sparta117corza you're = you are
shut up kid.
@@addadad9546 he doesn't own a "more prominent"
Parasitic thieves? I didn't know plants were allowed in the US Senate.
Pfft...snerk...HA HA HA HA HA!
Hehe good one!!!
Literally, politicians in general, if they have their own money, they get publicly shamed.
Yep, it’s stated in the Constitution
Gosh darn it. My phone is covered in coffee.
😂😂😂😂😂😂😂😂😂 good one
Dodder: *steals over 100 genes*
Also dodder: *wATs a cHLoRpHyl?*
Fall Armyworms implies the existence of Climb Leggyworms, and I'm not a fan
Not as bad Sink Navyworms.
Cariss Stewart why about float airworms
Winter Airworms? Spring Marineworms? Summer Navyworms?
😂😂😂 so cute
A joke that would only be appreciated on youtube..
When I defended my Bch thesis on Horizontal Gene Transfer in Bacteria I said to my jury that It also had to happen more frequently that known at the time even on Animals and Plants. They almost wanted to fail me at the time for such comment. Nowdays, more info is gathered every year about how truly frequent Horizontal Transfer is even in non-prokarya organisms.
I bet they're feeling bad now for almost failing you.
@@THETRIVIALTHINGS I bet they had so many students that they have forgotten all about it. They get away with it based on their authority on the matter and consensus. The education system would collapse if teachers and examiners would have to second-guess themselves every time they had to take a stand.
they've cancelled Lysenko for talking about plant hybridization. Turns out he was right, huh
When you steal your enemy's upgraded armour instead of using your own evolution points
... but you cant wear it cause you didnt bother to evolve.
*LEVEL UP*
Evolution: exists*
Parasitic plant: pfft that’s for normies
Hammer Addiction4u it’s still evolution, they just use horizontal gene transfer too. If anything, I would think that speeds up evolution
@@naturegirl1999
Thanks captain killjoy.
@@naturegirl1999 thats why people hate nerds
@Jose Diola you’re watching a video on plants. I think we’re all a little nerdy here.
Genestealers are real...
I'm genuinely astonished and perplexed by dodders. Mainly, how a dodder is defined? Like, when a dodder steals DNA, at a certain point it would stop being a dodder, right??
I love it
Freaking accents, took me way too long to realise they're "dodders" and not "daughters" in an accent 🤣
Same for me.
@@CourtOfWinter same
I have my captions on XD
I feel you
Even after it had been spelled out on screen, i kept hearing "daughter" as well ;)
Imagine having your jeans stolen by some plant
I have a pesky vine that is trying to steal my house.
@@christelheadington1136 Try spraying it with vinegar once a week.
Actually happaned to me
Or rings
Don't give any of them ideas, PHub is bad enough.
No-one :
Dodder: Nice genes!
Nothing is as conniving and devious as that segue into a sponsor's ad.
Hank is forever young.
I first learned about horizontal gene transfer from Steve Mould's video the other day. I would never have guessed it was possible on larger scales like plants.
Sometimes it even happens between animals too! Look up BovB, a type of transposon: a short stretch of DNA capable of copying and reinserting itself into other parts of a chromosome/genome. BovB copies itself so aggressively that literally 25% a cow's genome is just BovB copies!! But even more impressively, BovB has somehow managed to move by horizontal gene transfer across the animal kingdom; it's seen in rattlesnakes, sea urchins, mites, leaches, elephants... you name it! How this happened is unknown, but it probably hopped species via retroviruses and blood-sucking parasites.
I think they just a cloned sum dood
"The Happening" popped in my head at the end. The plants are going to target and kill us
I used to get dodders quite often in my back yard around spring time. They'll wrap around some of the small flower beds and my siblings used to play with them and make little flower circlets out of them
DID SOMEONE SAY GENESTEALERS!?
BY THE EMPEROR!
Get the flamer brother, the heavy flamer.
Purge the alien!
I read somewhere that some trees bursting into leaf in early spring haven't yet developed anti caterpillar defences, allowing a caterpillar boom at just the right time to feed huge flocks of breeding birds which disperse again once the defences have kicked in. Wish I could find a reference.
I wasn’t first
I wasn’t last
But when I saw that notification
I clicked fast
Plant defenses, especially the artillery of trichomes and secretory stuctures in angiosperms, are fascinating. You get to see how truly badass they can be.
This has the makings of a great sci-fi movie a plant that can sneak into a graveyard and still DNA.
So even plants can be vegetarians💪😉
And carnivorous ;)
@@flightlesschicken7769 that's true😀
Plant cannibalism
@@uplink-on-yt Plannibalism
@@uplink-on-yt only if it's the same exact plant species.
When I was a kid in LaJolla CA years ago I had one of these in our yard. I called it witches hair, and fed it every day with fresh foliage I would find. A few days ago I saw one in Ithaca NY by Cayuga lake. It's bright orange and look alien as hell!
For those interested: the book "I contain multitudes" by Ed Yong, reveals some great insights pertaining to the microbial world around us. The book also touches upon gene transfer amongst insects. Check it out!
Thank you for everything, Hank🙏
Found a patch of dodder on some bushes at the dock I used to work at, I would pull off about half of it every time I worked that dock and it would be back by the time I came there again a week later, I had a pretty good sized pile of dead dodder by the time I left that job but I was never able to completely kill it.
The transition of the NordVPN ad at the end of the video was so seemless I didn't mind it
Woah that's pretty crazy ! Thanks 👍
The Pink guy plant. Wonderful. Does it walk into stores and scream for hamburgers from the boss too?
Since the plants dont have chlorfyl, arent they then fungi?
As far as I'm aware not all plant cells have chloroplasts and therefore chlorophyll. Also, there is some more general indicators when assigning an organism to a kingdom (one of them would be the cell wall material, different in plants and fungi).
Can anyone more familiar with the topic add and clarify?
@@aguti1111 maybe the difference doesnt lie in the chlorophyl. Maybe it has something to do with the vacuoles. Dont plants have a big central vacuole and funghi several small ones? Maybe thats it. Can someone who knows the subject clarify. Thanks
@@momos8451 I'll be honest, I know nothing about fungi vacuolas... I only seem to recall the different cell wall materials to be one of the main reasons for considering fungi as a group separate from plants but I might be wrong
Studying his HGT in plants could maybe lead to new plant gene editing technology!! I am so excited OuO
Hank’s apathy for NordVPN is palpable
Dodder is taking over some Santa Barbara ranches.
So I guess plants are not “dull and boring “.
I'm raising these as pets they are sooooo cute I love them
I’m a horticulturist and this isn’t new
You’re just paying attention to it all of a sudden
Thanks for the vid 👍
I loved the caterpillar animation.
Wow wow man that's crazy good video thanks.
WOW, i never knew. This is amazing.
...
Now that is pretty awesome!
Me: Let's wath SciShow during breakfast
SciShow: LEAKY GUT SYNDROME!
00:38 Please explain one thing, if Dodders don"t have chlorophyll then how are they categorised at plants? What i know is that mushrooms are also a species which do not have chlorophyll and hence are categorised under fungus and not plants.
There are other things that determine whether a plant is a plant or not. Like the presence of a cell wall made of cellulose
Maize is corn, which, as a monocot, has parallel venation in the leaves. However your pictures of the army worms feeding on leaves clearly showed branching venation. What gives?
I kept getting sidetracked in the dodder section as I kept doing autotranslate into uk English and heard 'daughter'. Only because US pronunciatuon often replaces 't: with 'd'.
Yup, it's Sai-Sheau. You should fix that logo by the way. I've been meaning to bring it up for years now...
watch out for that dodder plant, i think its going to evolve into Cell
"really glad i dont have that" lol, i liked hearing you talk about yourself like you were biology
That Segway at the end though
The box in the upper left is VERY distracting, especially during the second half when the corner gets folded over.
@Hank do you write the episode first and the product tie-in second? Or the product tie-in first, then the show around that? = )
Nordvpn campaign with multiple youtubers all seem to require a witty tie in
So...dodder plants are kind of like vampires? Sure sounds like they suck.
So how have the dodders not stolen some genes for chlorophyl production?
They must have had the ability to produce chlorophyll once upon a time, given that they are descended from things that could create their own chlorophyll. Meaning they got rid of it
Whatever you do, don't nap under a Dodder.
Daughters. Makes sense.
Dodder Plants.. the original CRISPR? :)
NO
@@limiv5272 oh come on.... enjoy life a little bit..
@@ursaltydog I do, I enjoy ruining good theories with fact. Except when they're my theories...
@@limiv5272 It wasn't a theory... It was humor.. sly comparison... You're welcome... :)
@@limiv5272 Just saying no doesn't constitute a fact.
0:34 nooooo not my blues....wait
It would make sense that dodder would have such mechanisms at work, because this is a genus of "generalist parasites" that can attack many different kinds of plants compared to most others that attack a more restricted range of hosts.
The comment about "conniving plants" reminds me of what a colleague and I used to joke about when walking through the desert--one reads and hears about the dangerous, venomous animals, but in reality it turns out to be the plants that are the worse offenders with their various spines and hooks, all waiting to poke or latch on to anyone or anything passing by..
I ain't lettin' no weed snatch my jeans, because they'll look better in them than me
there is another kind of parasitic plant in my place , it can attach to any kind of tress . what puzzles me is that they do not attach to young plants
Nothing wil ever be as cool as the tomatto plant with a neurotoxin that turns caterpillars into bloodthirsty cannibals.
*Le Sigh* you had such a nice set up to say that some parts of the plant-world was root-less ... but you missed it.
Oh god, they've become the Jean stealers
Dodder! I clicked on this because of the Dodder!
I’m assuming they verified that they weren’t just looking at contaminated samples…
Hi scishow
Interesting science news
Thanks for the video..🙏👍😊
"Leaky gut syndrome. Really glad I don't have that"
I think the Dodder plant is using something similar to a VPN in order to circumvent the host's defenses.
I knew my lemon tree was starting to spit out grapefruit
I wonder if there’s an effect to any organism in the food chain that would feed on the plants w/ the better defense system as opposed to the plants with the weaker defenses
Scishow is now selling stuff on their show! We already have advertisements before and after the episode. Common!
Btw : plant power! Love plant research , they are the best!
This video started auto-playing while I was playing Fire Emblem and I misheard "dodder" as "daughter" and got *extremely* confused.
Did anyone notice how Hank pronounced fungi at 2:24?
yes but it's not as bad as that one video where he pronounced gif as jif
Тheese plants remind me of an episode in FarScape where this mutated big ass scary chunk of genes was trying to make his experiments just as superior as he is and everything else was unclean :D
Nobody :
Dodder Plant : *ASSIMILATE*
...
This is the third video in 2 days for me that has referenced trichomes. Interesting
"Whatever you do to my dodder, I do to you."
While it sounds appealing to get the plants to kill insects themselves, the end result could be catastrophic to wider ecosystems.
One plant's pest is another bird's lunch!
I don't think it'll be a problem as the modified plants don't ever leave the farms (for that they will need to be fenced in and uprooted and burned when the farm shuts down), bugs and their predators can live away from the farms like forests and fields (assuming we will still have those in the future), in an ideal world this idea could work, but that is not our world so I wonder what will go wrong
@@sm79165 We already have GM contamination issues, because fences aren't barriers to pollen or seeds.
Also, would you trust seed developers not to add this feature to EVERY possible crop? If there's money to be made, and no law against it, someone is going to want to do it!
We're already killing insects using pesticides. This would get the same result with less toxins being spread around.
@@limiv5272 Pesticides are applied repeatedly, but changing plant genetics is permanent. You do it one time and can't stop or recall it if there's a problem.
@@dshe8637 the companies that genetically alter plants like to limit their ability to reproduce. That will effectively prevent these plants from spreading very far. As a nice bonus, it forces the customers to keep buying seeds
If you see *REALLY* close, there is a really thin green line around him, that Is the green screen
We call it "yellow love" in the VI.
The premise of this is amazing I bet you could transfer this over to people somehow so we can better altered our genetic code to live longer be stronger be healthier be smarter be bigger or smaller
I'm a plant nerd, and I approve this message 😁
Obligatory engagement comment. I agree with your points
Parasitic plants stole my pants ...
I'm pretty sure we're going to be doing the same once Crispers perfected
4:05
Trichomes
(👇if you know what I mean)
i like how the title sounds like clickbait, but its actually the opposite
(the title not the video itself)
Nature is weird enough to never need clickbait titles.
I don't like the idea of my salad giving me leaky gut syndrome.... That sounds a lot like Crohn's disease. 😩
Real talk: Where’s Olivia?
Trick them into stealing corn genes so they can give us tree corn.
This plant made my jeans disappear
More plant science please.
So it's like... The Zerg of the plant world.
ExtreemGamez: am i a joke to you?
Scishow: yes.
😅
Creating plants which are bad for insects may be dangerous because may have negative effects on humans too.
How do scientists know how long ago an organism obtained certain DNA?
No plant better try steal my jeans!
Oh boy I always think if there was no nord VPN, tunnel bear or squarespace would there have been any TH-cam channels at all
If they could steal dna, why didnt they steal the segment required for photosynthesis yet?
So, you're saying that dodder stole those genes and then had daughters?
Nope