Navigation Links
Viruses con bacteria into working for them
Date:1/26/2012

sue of Current Biology. "The phage have evolved the capability to sense the degree of phosphorus stress in the host they're infecting and have captured, over evolutionary time, some components of the bacteria's machinery to overcome the limitation."

Chisholm and co-author Qinglu Zeng, a CEE postdoc, performed this research using the bacterium Prochlorococcus and its close relative, Synechococcus, which together produce about a sixth of the oxygen in Earth's atmosphere. Prochlorococcus is about one micron in diameter and can reach densities of up to 100 million per liter of seawater; Synechococcus is only slightly larger and a bit less abundant. The viruses that attack both bacteria, called cyanophages, are even more populous.

The bacterial mechanism in play is called a two-component regulatory system, which refers to the microbe's ability to sense and respond to external environmental conditions. This system prompts the bacteria to produce extra proteins that bind to phosphorus and bring it into the cell. The gene carried by the virus encodes this same protein.

"Both the phage and bacterial host have the genes that produce the phosphorus-binding proteins, and we found they can both be up-regulated by the host's two-component regulatory system," says Zeng. "The positive side of infection for bacteria is that they will obtain more phosphorus binders from the phage and maybe more phosphorus, although the bacteria are dying and the phage is actually using the phosphorus for its own ends."

In 2010, Chisholm and Maureen Coleman, now an assistant professor at the University of Chicago, demonstrated that the populations of Prochlorococcus living in the Atlantic Ocean had adapted to the phosphorus limitations of that environment by developing more genes specifically related to the scavenging of phosphorus. This proved to be the sole difference between those populations and their counterparts liv
'/>"/>

Contact: Denise Brehm
brehm@mit.edu
617-253-8069
Massachusetts Institute of Technology, Department of Civil and Environmental Engineering
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. No more free rides for piggy-backing viruses
2. Plasma treatment zaps viruses before they can attack cells
3. Promising results in mice on needle-free candidate universal vaccine against various flu viruses
4. Pitt biologists find surprising number of unknown viruses in sewage
5. Manipulated gatekeeper: How viruses find their way into the cell nucleus
6. XMRV, related viruses not confirmed in blood of healthy donors or chronic fatigue syndrome patients
7. Watching viruses friend a network
8. Decade-long study reveals recurring patterns of viruses in the open ocean
9. Scientists copy the ways viruses deliver genes
10. Humabs discovers the first antibody to neutralize both group 1 and group 2 influenza A viruses
11. Scavenger cells accomplices to viruses
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Viruses con bacteria into working for them
(Date:9/29/2014)... For decades, planetary geologists have speculated that glaciers ... 2000-mile-long chasm that constitutes the Grand Canyon of ... that might have been carved by past glaciers ... observations have remained highly controversial and contested. ... College and the Freie Universitaet Berlin has identified ...
(Date:9/29/2014)... of Pangea was starting to break up and dog-sized dinosaurs ... called phytosaurs and rauisuchids were at the top of the ... predators didn,t interact much as the former was king of ... ideas are changing, thanks largely to the contents of a ... in the German journal Naturwissenschaften , Stephanie ...
(Date:9/29/2014)... Institute (DOE JGI), a DOE Office of Science ... have been selected for the 2015 Community Science ... waters, and from plant root micro-ecosystems, to the ... the CSP 2015 projects portfolio highlights diverse environments ... , "These projects catalyze JGI,s strategic shift in ...
Breaking Biology News(10 mins):Glaciers in the Grand Canyon of Mars? 2Glaciers in the Grand Canyon of Mars? 3Glaciers in the Grand Canyon of Mars? 4Glaciers in the Grand Canyon of Mars? 5Glaciers in the Grand Canyon of Mars? 6Glaciers in the Grand Canyon of Mars? 7Glaciers in the Grand Canyon of Mars? 8Glaciers in the Grand Canyon of Mars? 9Tooth buried in bone shows prehistoric predators tangled across land, sea 22015 DOE JGI's science portfolio delves deeper into the Earth's data mine 22015 DOE JGI's science portfolio delves deeper into the Earth's data mine 32015 DOE JGI's science portfolio delves deeper into the Earth's data mine 42015 DOE JGI's science portfolio delves deeper into the Earth's data mine 52015 DOE JGI's science portfolio delves deeper into the Earth's data mine 62015 DOE JGI's science portfolio delves deeper into the Earth's data mine 72015 DOE JGI's science portfolio delves deeper into the Earth's data mine 82015 DOE JGI's science portfolio delves deeper into the Earth's data mine 9
... 2012 Millions of people worldwide suffer from a ... triggered by nerve damage. Precisely how this pain persists ... ineffective. But a team led by scientists from The ... metabolomics, has now discovered a major clue: dimethylsphingosine (DMS), ...
... researchers of Hospital del Mar and its research institute, ... pharmacological resistance to cancer. This new mechanism is a ... receptor) causing resistance to treatment using a drug called ... The study proves that, both in lab models ...
... work with engines traveling on straight tracks, a team ... Oxford have successfully used DNA building blocks to construct ... tracks with multiple switches. The findings, published in the ... Nanotechnology , are expected to lead to further developments ...
Cached Biology News:Scripps Research scientists provide new understanding of chronic pain 2Scripps Research scientists provide new understanding of chronic pain 3Identified a cause of resistance to colon cancer treatment 2
(Date:9/30/2014)... September 30, 2014 SoundConnect, ... collaboration company is dedicated to supporting business communication ... Julie Power, a carrier services ... collaboration solutions stays connected and productive at all ... increased movement of businesses to cloud communications services. ...
(Date:9/30/2014)... On September 11, Pharma IQ conducted an interview with ... that he will lead on “Stem Cells” at the ... in London. In the interview posted online ... to several questions on the current state of technologies for ... and future trends in the use of stem cells for ...
(Date:9/30/2014)... New Jersey (PRWEB) September 30, 2014 ... it has been chosen by the Parenteral Drug ... (November 18 and 19, 2014) on container closure integrity ... container closure integrity test methods and philosophies detailed in ... – Integrity Evaluation. The course will span ...
(Date:9/30/2014)... Pittsburgh PA (PRWEB) September 30, 2014 ... Nurses ( IACRN), a non-profit organization based ... Clinical Research Excellence and Safety (ACRES), a ... of a strategic alliance agreement, setting the stage ... is to enhance clinical research quality and safety ...
Breaking Biology Technology:SoundConnect Expands Carrier Services Division 2Adult Stem Cell Technology Center, LLC Director James L. Sherley Discusses Stem Cell Toxicology 2Adult Stem Cell Technology Center, LLC Director James L. Sherley Discusses Stem Cell Toxicology 3Adult Stem Cell Technology Center, LLC Director James L. Sherley Discusses Stem Cell Toxicology 4Whitehouse Laboratories to Partner with PDA for Educational Course on Container Closure Integrity Testing 2Whitehouse Laboratories to Partner with PDA for Educational Course on Container Closure Integrity Testing 3Whitehouse Laboratories to Partner with PDA for Educational Course on Container Closure Integrity Testing 4IACRN and ACRES to Support Clinical Research Nurses 2IACRN and ACRES to Support Clinical Research Nurses 3
... accuracy: DNA vaccines that home in on DCs are ... develop new vaccines against infectious diseases is DNA vaccination. ... vaccine, the body converts the information in the DNA ... However, current DNA vaccines induce relatively weak immune responses ...
... UK, 6 March 2008 Elsevier, the world-leading ... and services, announced today Hybrid Materials 2009: The ... which will take place in Tours, France, 15-19 ... has experienced a 14% annual growth in published ...
... DNDN ) will release its fourth quarter financial results on,Thursday, March ... PT; 11:00 a.m. ET to review fiscal year 2007 financial results,and ... follows:, Time: 11:00 AM ... March 13, 2008 Dial-in: 1-877-548-7901 (domestic) or +1-719-325-4844 ...
Cached Biology Technology:JCI online early table of contents: March 6, 2008 2JCI online early table of contents: March 6, 2008 3JCI online early table of contents: March 6, 2008 4Hybrid materials: Exciting interdisciplinary field offering future solutions for industry 2-Dendreon to Hold Conference Call on Thursday, March 13, 2008 at 11:00 AM ET- 2
... Plus is a modular confocal system that ... an ultra-compact and lightweight design. The improved ... optical performance to 400nm andits bi-directional scanner ... for X and Y scan axes rotation ...
No-Weigh Dithiothreitol (DTT) ,7.7 mg DTT/Tube x 48 tubes...
... is an integrated digital microscope and camera ... equipment setup, optical adjustment or software installation. ... technology, COOLSCOPE combines simplicity and advanced technology ... offers simultaneous viewing of a macro image ...
... end-users to be "a delight to use" ... microscopy and electronic imaging. With its ergonomic ... require much space and can easily be ... DM-BA300 combines Motic's own revolutionary Colour Corrected ...
Biology Products: