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'Virus-eater' discovered in Antarctic lake
Nature News ^ | 28 March 2011 | Virginia Gewin

Posted on 03/29/2011 3:23:02 PM PDT by neverdem

First of the parasitic parasites to be discovered in a natural environment points to hidden diversity.

A genomic survey of the microbial life in an Antarctic lake has revealed a new virophage — a virus that attacks viruses. The discovery suggests that these life forms are more common, and have a larger role in the environment, than was once thought.

An Australian research team found the virophage while surveying the extremely salty Organic Lake in eastern Antarctica. While sequencing the collective genome of microbes living in the surface waters, they discovered the virus, which they dubbed the Organic Lake Virophage (OLV).

The OLV genome was identified nestling within the sequences of phycodnaviruses — a group of giant viruses that attack algae. Evidence of gene exchange, and possible co-evolution, between the two suggests that OLV preys on the phycodnavirus. Although OLV is the dominant virophage in the lake, the work suggests others might be present.

By killing phycodnaviruses, the OLV might allow algae to thrive. Ricardo Cavicchioli, a microbiologist at the University of New South Wales in Sydney, Australia, and his colleagues found that mathematical models of the Organic Lake system that took account of the virophage's toll on its host showed lower algal mortality and more blooms during the lake's two ice-free summer months.

"Our work reveals not only an amazing diversity in microbial life in this lake, but also how little we understand about the complexity of the biological functions at work," says Cavicchioli. The findings are published in the Proceedings of the National Academies of Science1...

(Excerpt) Read more at nature.com ...


TOPICS: Culture/Society; News/Current Events; Testing
KEYWORDS: antarctica; catastrophism; godsgravesglyphs; microbiology; science; virology; virophage; virophages; virus; viruses
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1 posted on 03/29/2011 3:23:06 PM PDT by neverdem
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To: neverdem

“parasitic parasites”? Who wrote this twaddle?


2 posted on 03/29/2011 3:27:52 PM PDT by afraidfortherepublic
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To: Mother Abigail; EBH; vetvetdoug; Smokin' Joe; Global2010; Battle Axe; null and void; ...
micro - virophage! ping

Resolve A DOI Name

The DOI for the first citation worked like a charm if you want to read the abstract. Save that Resolve A DOI Name website if you don't have a similar website already.

3 posted on 03/29/2011 3:30:22 PM PDT by neverdem (Xin loi minh oi)
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To: afraidfortherepublic
“parasitic parasites”? Who wrote this twaddle?

A journalistic journalist?

4 posted on 03/29/2011 3:33:32 PM PDT by Zeppelin (Keep on FReepin' on...)
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To: afraidfortherepublic
“parasitic parasites”? Who wrote this twaddle?

It's a virus that "lives" off another species of virus.

5 posted on 03/29/2011 3:34:29 PM PDT by neverdem (Xin loi minh oi)
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To: neverdem

I know what a parasite is, but it seems to me that a “parasitic parasite” is redundant.


6 posted on 03/29/2011 3:37:32 PM PDT by afraidfortherepublic
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To: afraidfortherepublic

Meta-parasite?


7 posted on 03/29/2011 3:38:29 PM PDT by HiTech RedNeck (Hawk)
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To: Zeppelin
A journalistic journalist?

Methinks you've got it!

8 posted on 03/29/2011 3:38:51 PM PDT by afraidfortherepublic
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To: neverdem

So the parasite is parasitic to a parasite.


9 posted on 03/29/2011 3:40:51 PM PDT by MacMattico
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To: afraidfortherepublic
I know what a parasite is, but it seems to me that a “parasitic parasite” is redundant.

What else do you call a parasite that goes after parasites?

10 posted on 03/29/2011 3:40:57 PM PDT by PapaBear3625 ("It is only when we've lost everything, that we are free to do anything" -- Fight Club)
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To: afraidfortherepublic

If we find a virus that attacks other viruses,
that may open the door to treating a lot of
diseases...


11 posted on 03/29/2011 3:41:35 PM PDT by CondorFlight (I)
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To: neverdem

Given that viruses can’t do anything without having invaded a full fledged cell, then it sounds like the phage gets cells to eliminate the other virus, rather than attacking the other virus in the wild.

This might be an interesting concept for the field of medicine. Imagine an anti-flu virus which would be benign to the human body but set a significant number of its cells up to pro-actively attack flu viruses. Or if it’s deemed too dangerous to try on people, then something like this on a veterinary level.


12 posted on 03/29/2011 3:43:03 PM PDT by HiTech RedNeck (Hawk)
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To: PapaBear3625
The Eiffel tower going after the Louvre?

(both Paris sites)

Ok, not that funny.

13 posted on 03/29/2011 3:44:16 PM PDT by MacMattico
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To: afraidfortherepublic
I know what a parasite is, but it seems to me that a “parasitic parasite” is redundant.

A government employee at the welfare office would fit the bill.

14 posted on 03/29/2011 3:44:25 PM PDT by Tijeras_Slim
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To: afraidfortherepublic

what happens if a parasite has a parasite? How would you describe the parasite’s parasite and its parasital action on the parasite?


15 posted on 03/29/2011 3:44:52 PM PDT by himno hero ("armageddon is well seeded, America will pay"...Barrack Obama)
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To: neverdem
“So nat’ralists observe, a flea
Hath smaller fleas that on him prey,
And these have smaller fleas that bite ‘em,
And so proceed ad infinitum.” Jonathan Smith

Correct. Other than the ad infinitum part. There is, after all, a limit (so far) in that it has to be DNA or RNA that carries the code to make the molecular machines that reproduce the DNA or RNA code.

But a virophage is just.... wow.

A virus is about as striped down simple as anything that could possibly said to be alive could be. It is a protein package meant to dock with and inject DNA or RNA into a living cell, where that DNA or RNA codes for viral proteins and get replicated and they get assembled ‘Frankenstein's monster style’ and burst out to infect other living cells.

This thing gets inside another virus? Doesn't it at some point have to infect a living cell in order to copy itself?

16 posted on 03/29/2011 3:47:41 PM PDT by allmendream (Tea Party did not send the GOP to D.C. to negotiate the terms of our surrender to socialism.)
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To: MacMattico

I give you an “A” for concept, but a “D” on execution.

Overall, a “B-”

=)


17 posted on 03/29/2011 3:53:33 PM PDT by Zeppelin (Keep on FReepin' on...)
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To: neverdem
“The hosts of all three known virophages belong to a group of giant viruses known as nucleocytoplasmic large DNA viruses (NCLDV). “NCLDV viruses have large and complex genomes that allow them to incorporate the smaller virophages, something smaller viruses may not be able to do,” says Desnues.”

So I guess it works like this. These giant viruses infect Zooplankton in the lake and these virophages have protein shells to dock with and inject their “code” into the giant virus and get incorporated into the viral genome.

When the infected virus (infected by a smaller virus) infects a Zooplankon and reproduces - it reproduces WITH IT - the little sucker that will infect uninfected virus.

All this reproducing of the ‘virophage’ during its own infection of Zooplankton really messes up the virus - and allows the Zooplankon to thrive more than it would if the virus went unchecked.

..............................................................................wow...............................................that is CRAZY!!!!!!!!!

18 posted on 03/29/2011 3:54:49 PM PDT by allmendream (Tea Party did not send the GOP to D.C. to negotiate the terms of our surrender to socialism.)
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To: HiTech RedNeck

bttt


19 posted on 03/29/2011 3:59:37 PM PDT by BenLurkin (This post is not a statement of fact. It is merely a personal opinion -- or humor -- or both)
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To: afraidfortherepublic

It is unless you’re talking about Leftists.


20 posted on 03/29/2011 4:00:45 PM PDT by DoughtyOne (The only thing higher than Obama's chin, is his ass facing West five times a day.)
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To: allmendream

When dyslexia attacks.

Jonathan SWIFT.


21 posted on 03/29/2011 4:04:53 PM PDT by allmendream (Tea Party did not send the GOP to D.C. to negotiate the terms of our surrender to socialism.)
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To: neverdem

The Thing. Que Kurt Russell.


22 posted on 03/29/2011 4:08:34 PM PDT by crazydad
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To: neverdem


23 posted on 03/29/2011 4:09:22 PM PDT by JoeProBono (A closed mouth gathers no feet - Visualize)
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To: Zeppelin
My husband's the joke teller. A “B-” is actually good for me in the “attempting to be amusing” category!
24 posted on 03/29/2011 4:09:27 PM PDT by MacMattico
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To: neverdem
“parasitic parasites”

You don't have to go all the way to Antarctica to find parasitic parasites - check out DC.

25 posted on 03/29/2011 4:15:16 PM PDT by The Sons of Liberty (Psalm 109:8 Let his days be few and let another take his office. - Mene, Mene, Tekel, Upharsin)
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To: afraidfortherepublic

““parasitic parasites”? Who wrote this twaddle?”

You beat me.


26 posted on 03/29/2011 4:17:38 PM PDT by dljordan ("His father's sword he hath girded on, And his wild harp slung behind him")
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To: HiTech RedNeck

Thanks Redneck,

I appreciate your informatve post. I suspect that most of the rest of the posters are JR HS students.


27 posted on 03/29/2011 4:17:56 PM PDT by neocon1984
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To: CondorFlight

“If we find a virus that attacks other viruses,
that may open the door to treating a lot of
diseases...”

Only if the FDA never has to approve it.


28 posted on 03/29/2011 4:18:55 PM PDT by dljordan ("His father's sword he hath girded on, And his wild harp slung behind him")
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To: MacMattico

not bad ... but don’t give up your day job ...


29 posted on 03/29/2011 4:49:57 PM PDT by Patton@Bastogne
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To: The Sons of Liberty
Yep. Exactly my thought. The scumbags in DC are lower than all the parasites feeding off dead-end entitlements. Many of those people are surrounded by urban ghetto and have known nothing else for generations (thanks to DC).

I'd say a good deal of DC bloodsuckers know they are destroying the country to line their own pockets.

30 posted on 03/29/2011 4:50:02 PM PDT by varyouga ("The hardest thing in the world to understand is the income tax." - Albert Einstein)
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To: allmendream
All this reproducing of the ‘virophage’ during its own infection of Zooplankton really messes up the virus - and allows the Zooplankon to thrive more than it would if the virus went unchecked.

Maybe the virophage is able to use the Zooplankton to reproduce. I'm no virologist or microbiologist, but this is certainly new.

31 posted on 03/29/2011 5:09:24 PM PDT by neverdem (Xin loi minh oi)
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To: neverdem

If cancer is a virus as some suggest...


32 posted on 03/29/2011 5:15:53 PM PDT by Sergio (An object at rest cannot be stopped! - The Evil Midnight Bomber What Bombs at Midnight)
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To: neverdem
Yes, it piggybacks on a megavirus. The megavirus then infects a Zooplankton and injects its DNA into the cell. Inside the cell are the molecules and resources to reproduce more megavirus AND more virophage.

So it is a virus that piggybacks onto a megavirus that piggybacks onto a Zooplankton that reproduces ALL three actors in our little drama of reproduction.

33 posted on 03/29/2011 5:17:49 PM PDT by allmendream (Tea Party did not send the GOP to D.C. to negotiate the terms of our surrender to socialism.)
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To: afraidfortherepublic
[ I know what a parasite is, but it seems to me that a “parasitic parasite” is redundant. ]

Then you got your Kuncinch parasitizing Obama..
-OR- your Micheal Moore's parasitizing any restaurant..

AND democrats parasitizing Washington D.C....
AND Rinos parasitizing them...

Theres a whole lot of freeloading going on..

34 posted on 03/29/2011 5:30:52 PM PDT by hosepipe (This propaganda has been edited to include some fully orbed hyperbole....)
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To: PapaBear3625

“What else do you call a parasite that goes after parasites?”

Lobbyist?


35 posted on 03/29/2011 5:31:17 PM PDT by dangerdoc (see post #6)
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To: dljordan

Eastern Europe has spent decades developing bacteriophages as an alternative to western medicine antibiotics.


36 posted on 03/29/2011 5:34:20 PM PDT by dangerdoc (see post #6)
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To: JoeProBono

“There’s something back there, I don’t know what it is, but it’s weird and pissed off.”


37 posted on 03/29/2011 7:39:04 PM PDT by WL-law
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To: neverdem

-——a new virophage — a virus that attacks viruses. ——

If I were a dualist, a believer in the ying and the yang, good and evil , black and white, then I would think “but of course”

For an evil virus, there has to be a good antivirus. That is just the way things are.


38 posted on 03/30/2011 5:54:31 AM PDT by bert (K.E. N.P. N.C. D.E. +12 ....( History is a process, not an event ))
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To: Tijeras_Slim
"I know what a parasite is, but it seems to me that a “parasitic parasite” is redundant."

"A government employee at the welfare office would fit the bill."

This site needs a "like button" feature.

39 posted on 03/30/2011 7:29:43 AM PDT by Radix ("..Democrats are holding a meeting today to decide whether to overturn the results of the election.")
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To: Perdogg; 75thOVI; agrace; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; ...

Thanks neverdem. MiB III might be able to work this into the story.
 
Catastrophism
 
· join · view topics · view or post blog · bookmark · post new topic · subscribe ·
 

40 posted on 04/02/2011 8:53:58 AM PDT by SunkenCiv (Thanks Cincinna for this link -- http://www.friendsofitamar.org)
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To: StayAt HomeMother; Ernest_at_the_Beach; 1010RD; 21twelve; 24Karet; 2ndDivisionVet; 31R1O; ...

· GGG managers are SunkenCiv, StayAt HomeMother, and Ernest_at_the_Beach ·
· join list or digest · view topics · view or post blog · bookmark · post a topic · subscribe ·

 
 Antiquity Journal
 & archive
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 Excerpt, or Link only?
 


Thanks neverdem.

To all -- please ping me to other topics which are appropriate for the GGG list.
 

· History topic · history keyword · archaeology keyword · paleontology keyword ·
· Science topic · science keyword · Books/Literature topic · pages keyword ·


41 posted on 04/02/2011 8:54:30 AM PDT by SunkenCiv (Thanks Cincinna for this link -- http://www.friendsofitamar.org)
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To: MacMattico

Straight B and very funny in an elitist sort of way.


42 posted on 04/02/2011 9:05:09 AM PDT by Dryman ("FREE THE LONG FORM!")
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To: SunkenCiv

I wonder if it’s

BIG ENOUGH

to tackle the viruses in D.C.?


43 posted on 04/02/2011 9:20:22 AM PDT by Quix (Times are a changin' INSURE you have believed in your heart & confessed Jesus as Lord Come NtheFlesh)
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To: neverdem; SunkenCiv

Save me a glop to insert into my computer.


44 posted on 04/02/2011 9:29:53 AM PDT by wildbill (You're just jealous because the Voices talk only to me.)
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To: SunkenCiv
First of the parasitic parasites to be discovered in a natural environment points to hidden diversity. A genomic survey of the microbial life in an Antarctic lake has revealed a new virophage — a virus that attacks viruses. The discovery suggests that these life forms are more common, and have a larger role in the environment, than was once thought.

A common, generic definition of a Parasite: An animal or plant that lives on or in another animal or plant of a different type and feeds from it. So, a new "virophage" that is "a virus that attacks viruses" or rather "eats" (phage) another to impair the replication of other (a life form). Interesting.. I should think the concept at least is not new. Part of evolution.

Is that what's about to happen in Libya, etc.. or will it be confined to an Antarctic lake?

45 posted on 04/02/2011 10:13:33 AM PDT by odds
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To: dljordan

True. The eastern block countries have been using bacteriophages for a long time. The west stopped this line of research when anti biotics were able to be mass produced.

But as antibiotic resistant bacteria are now becoming more prevalent, phages should make a come back but the FDA is standing in the way.


46 posted on 04/02/2011 10:25:44 AM PDT by econ cents
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To: neverdem; SunkenCiv

“So nat’ralists observe, a flea
Hath smaller fleas that on him prey,
And these have smaller fleas that bite ‘em,
And so proceed ad infinitum.”
J. Swift


47 posted on 04/02/2011 10:41:28 AM PDT by ApplegateRanch (Made in America, by proud American citizens, in 1946.)
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To: ApplegateRanch

:’)


48 posted on 04/02/2011 12:09:52 PM PDT by SunkenCiv (Thanks Cincinna for this link -- http://www.friendsofitamar.org)
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To: neverdem; afraidfortherepublic

It’s a virusitic virus!


49 posted on 04/02/2011 12:17:18 PM PDT by SunkenCiv (Thanks Cincinna for this link -- http://www.friendsofitamar.org)
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To: odds

Extinct humans left louse legacy(Homo Erectus and Homo Sapiens)
http://www.freerepublic.com/focus/news/1246930/posts

Lice hang ancient date on first clothes:
Genetic analysis puts origin at 190,000 years ago
http://www.freerepublic.com/focus/chat/2498946/posts

an interesting comment here:
http://www.freerepublic.com/focus/chat/2226603/posts?page=41#41

[sidebar] Huge New Virus Defies Classification
http://www.freerepublic.com/focus/news/1536753/posts


50 posted on 04/02/2011 12:52:49 PM PDT by SunkenCiv (Thanks Cincinna for this link -- http://www.friendsofitamar.org)
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