172
submitted 1 month ago by tal@lemmy.today to c/news@lemmy.world

The giant viruses might infect algae that are increasing Greenland's ice melt. These viruses could help kill off the damaging algal blooms, helping to reduce some of the impacts of climate change.

top 31 comments
sorted by: hot top controversial new old
[-] Kolanaki@yiffit.net 60 points 1 month ago

"How giant are we talking?"

"Help me wrangle this one, Ensign!"

[-] Bishma@discuss.tchncs.de 28 points 1 month ago

The thing I love about Lemmy is that I'm not the first person that immediately thought of the VOY macrovirus episode.

[-] Evil_Shrubbery@lemm.ee 5 points 1 month ago

Omg, you are not gonna believe what I was about to comment (that we need Borg nanobots).

[-] Beryl@lemmy.world 36 points 1 month ago* (last edited 1 month ago)

According to the paper this article is based on, the family of viruses they study, called NCLDV (for NucleoCytoplasmic Large DNA Viruses), are about 1 μm in diameter, which would indeed put them up there with the largest viruses like Pandoravirus or Pithovirus, which are also around the micrometer mark, and I believe are also part of the NCLDV phylum.

Those viruses are about the size of a bacterium. In fact they are so large that they weren't immediately identified as viruses. Here's something to give you a sense of the size of common viruses :

However, I don't know how they come up with that 1500x factor (which doesn't appear in the source paper), since in size, it's more like 10x bigger than your average virus (~100nm). Even considering genome size, common viruses genomes are about 10 kb or so, wheras Pandoravirus is the biggest at 2.5Mb. So that would be closer to a 250x factor at best.

For reference, SARS-CoV2 (of COVID-19 fame) is about 100nm in diameter and has a genome size of 30kb.

[-] etchinghillside@reddthat.com 4 points 1 month ago

Does larger in any way mean “less bad”? I’m trying to think of “smaller” things being more likely to be poisonous/venomous in other animals.

[-] Evil_Shrubbery@lemm.ee 3 points 1 month ago

Quite scary when you consider their size in relation to the sun and it's planets. Eldritch looking undead things.

[-] disguy_ovahea@lemmy.world 1 points 1 month ago

Interesting. I’m curious of the time period of origin. Would it be possible that we have genetic immunity as part of our ~8% virus DNA?

[-] Beryl@lemmy.world 1 points 1 month ago

Nope, sorry. That's not how immunity works.

[-] disguy_ovahea@lemmy.world 1 points 1 month ago

I’ve read that they’re investigating the possibility of it helping us fight modern viruses. Why wouldn’t it do the same for the original viruses, assuming they’re part of that 8%?

https://www.nih.gov/news-events/nih-research-matters/ancient-viral-dna-may-help-humans-fight-infections

[-] Beryl@lemmy.world 2 points 1 month ago* (last edited 1 month ago)

The article you linked to is about suppressyn, an originally viral protein that's been integrated in human DNA and is as far as I know only expressed in placenta. There suppressyn helps fight viral infections by competing with some families of viruses for the binding of a membrane receptor (ASCT2) that these viruses use as a way to recognize and attach themselves to target cells.

It seems NCLDV infects unicellular algae and protists, with at least some of the family members relying on phagocytosis by the host, and many of them displaying fibrils on their particles. And though the binding mechanisms probably differ between different viruses of the NCLDV family, I really doubt these host organisms express ASCT2.

[-] AngryCommieKender@lemmy.world 1 points 1 month ago

Perhaps the 1500 number is talking about DNA complexity? I'm no virologist, but as I understand it most "normal" viruses have extremely short DNA strands. Perhaps this one is so big because it's more complex DNA

[-] Beryl@lemmy.world 2 points 1 month ago* (last edited 1 month ago)

Nope, I looked at DNA length, that's what the kb or Mb in my previous post is about. Kb stands for kilobases, each base or nucleotide being one of those A, T, C and G that constitute DNA. Biologists mesure the size of a genome by counting these bases. Average size for a virus is around 10,000 bases or 10kb (sources say 7-20kb) and they don't get much smaller than 3.5kb.

[-] General_Effort@lemmy.world 12 points 1 month ago
[-] catloaf@lemm.ee 9 points 1 month ago

Living as much as any other virus, I assume.

[-] General_Effort@lemmy.world 3 points 1 month ago

Don't feed my pedantic nerd rage.

[-] morphballganon@lemmy.world 1 points 1 month ago

Maybe active would be a better word

[-] RamblingPanda@lemmynsfw.com 8 points 1 month ago

Or it's an extraterrestrial plot to take over the world. I've seen the x files and I'm scared.

That liver eating thing below the escalators was worse though.

[-] girlfreddy@lemmy.ca 5 points 1 month ago

If you really want to be icked out, try David Croneberg's first movie, "Shivers".

[-] RamblingPanda@lemmynsfw.com 3 points 1 month ago

I haven't seen that one, but Rick and Morty have shown me that I maybe don't want to.

[-] girlfreddy@lemmy.ca 3 points 1 month ago

Maybe not. It's about as weird and creepy as he gets. He does love his body horror stuff.

Took me a long time to get into a bathtub after watching it.

[-] Zahille7@lemmy.world 3 points 1 month ago

I think the only Cronenberg movie I've seen is Scanners, which is a different kind of fucked up.

[-] girlfreddy@lemmy.ca 2 points 1 month ago

Here's his movies in a ranked format. Dunno that I agree with M Butterfly being last, but whatever.

I am off to rewatch A History of Violence now tho. :)

https://editorial.rottentomatoes.com/guide/david-cronenberg-movies-ranked-by-tomatometer/

[-] Bluefalcon@discuss.tchncs.de 6 points 1 month ago

The old girl still has some fight.

[-] FlyingSquid@lemmy.world 6 points 1 month ago

The giant viruses, which can be up to around 1,500 times larger than regular viruses, might be attacking microscopic algae that turn Greenland's ice a darker color and cause it to melt faster.

Which is how big? They could have told us.

[-] treefrog@lemm.ee 22 points 1 month ago

Regular viruses are 1500 times smaller than giant viruses.

Hopefully that clears it up.

[-] CaptPretentious@lemmy.world 11 points 1 month ago

So... Based on some quick searches, this translates to 0.15 millimeter. Which based on some other quick searches... It's visible to the human eye.

So that's terrifying.

[-] FlyingSquid@lemmy.world 1 points 1 month ago

I don't find it terrifying because it isn't a direct threat to humans, but that's certainly crazy huge.

[-] Aux@lemmy.world 3 points 1 month ago

Zombie apocalypse when?

[-] walter_wiggles@lemmy.nz 2 points 1 month ago
[-] crawancon@lemm.ee 2 points 1 month ago

....for now.....

this post was submitted on 08 Jun 2024
172 points (98.3% liked)

News

21850 readers
5205 users here now

Welcome to the News community!

Rules:

1. Be civil


Attack the argument, not the person. No racism/sexism/bigotry. Good faith argumentation only. This includes accusing another user of being a bot or paid actor. Trolling is uncivil and is grounds for removal and/or a community ban.


2. All posts should contain a source (url) that is as reliable and unbiased as possible and must only contain one link.


Obvious right or left wing sources will be removed at the mods discretion. We have an actively updated blocklist, which you can see here: https://lemmy.world/post/2246130 if you feel like any website is missing, contact the mods. Supporting links can be added in comments or posted seperately but not to the post body.


3. No bots, spam or self-promotion.


Only approved bots, which follow the guidelines for bots set by the instance, are allowed.


4. Post titles should be the same as the article used as source.


Posts which titles don’t match the source won’t be removed, but the autoMod will notify you, and if your title misrepresents the original article, the post will be deleted. If the site changed their headline, the bot might still contact you, just ignore it, we won’t delete your post.


5. Only recent news is allowed.


Posts must be news from the most recent 30 days.


6. All posts must be news articles.


No opinion pieces, Listicles, editorials or celebrity gossip is allowed. All posts will be judged on a case-by-case basis.


7. No duplicate posts.


If a source you used was already posted by someone else, the autoMod will leave a message. Please remove your post if the autoMod is correct. If the post that matches your post is very old, we refer you to rule 5.


8. Misinformation is prohibited.


Misinformation / propaganda is strictly prohibited. Any comment or post containing or linking to misinformation will be removed. If you feel that your post has been removed in error, credible sources must be provided.


9. No link shorteners.


The auto mod will contact you if a link shortener is detected, please delete your post if they are right.


10. Don't copy entire article in your post body


For copyright reasons, you are not allowed to copy an entire article into your post body. This is an instance wide rule, that is strictly enforced in this community.

founded 1 year ago
MODERATORS