Navigation Links
'Policing' stops cheaters from dominating groups of cooperative bacteria
Date:5/26/2011

nd other difficult conditions.

In mixed fruiting bodies containing both "cheater" and "cooperator" strains, the cheater strain utilized by Manhes and Velicer does not contribute a social signal required for making spores, whereas the cooperative strain does. Defection from making a social contribution allows cheater cells to "steal" the social signal from cooperators and convert a larger proportion of their cells into spores than do cooperators. Thus, the cheater strain loses to the cooperator strain when they develop in separate groups, but the cheater wins in mixed groups where they directly interact with cooperators.

The scientists mixed cooperative and cheating strains of M. xanthus and allowed cooperator lineages -- but not the cheater -- to evolve under starvation conditions in which cooperative construction of fruiting bodies is important for survival. They then watched to see how replicate lineages descended from the cooperator strain would evolve while repeatedly encountering the same non-evolving cheater over many consecutive cycles of fruiting body development.

Both strains were exposed to an antibiotic during a growth phase after each cycle of development. Cheater cells are sensitive to the antibiotic and were killed off, whereas cooperator cells were resistant to the antibiotic and their populations could continue growing and evolving. The same non-evolving cheater strain was reintroduced to the evolving cooperator lineages at the beginning of each cycle of fruiting body development and removed at the end of each cycle. The evolution experiment was allowed to run for 20 cycles of development.

"We tested whether cooperators adapted to the presence of a cheater mainly by changing their social interactions with that cheater or by improving their spore production in a way that is independent of their social environment," Manhes said. "We found that the lineages descended from the cooperative ancestor evolved novel i
'/>"/>

Contact: Steve Chaplin
stjchap@indiana.edu
812-856-1896
Indiana University
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Researchers find drug that stops progression of Parkinsons disease in mice
2. Novel on-off switch mechanism stops cancer in its tracks
3. Natural compound stops retinopathy
4. Social separation stops flu spread, but must be started soon
5. Claudin 11 stops the leaks in neuronal myelin sheaths
6. Purdue researcher invents molecule that stops SARS
7. DFG establishes 18 new research training groups
8. Vitamin E may increase the life expectancy of restricted groups of men
9. DFG establishes 10 new research training groups
10. Family ties bind desert lizards in social groups
11. From the heart: How cells divide to form different but related muscle groups
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
'Policing' stops cheaters from dominating groups of cooperative bacteria
(Date:8/19/2014)... , August 19, 2014 Smart ... Digital Wallet Choices as latest developments, ad campaigns and ... (NASDAQ: EBAY ), Amazon.com Inc. (NASDAQ: ... ), Google Inc. (NASDAQ: GOOG ) and ... NXTD) a biometric authentication company focused on the growing ...
(Date:8/19/2014)... protect their young have bigger brains than counterparts that ... British Columbia study. , Stickleback fish are well known ... male of the species, rather than the female, cares ... females and researchers wanted to find out if the ... caregivers. , In the study, published recently in ...
(Date:8/18/2014)... major Arizona watershed may lose access to important segments ... is reduced by the effects of climate warming, new ... in the Verde River Basin, are already threatened or ... resources throughout the river and its tributary streams. The ... (Gila robusta) and Sonora sucker (Catostomus insignis). , A ...
Breaking Biology News(10 mins):Digital Wallet Choices; PayPal, Google Wallet, Apple Passbook - and Now Wocket Smart Wallet : Who Addresses Issues of Security? 2Digital Wallet Choices; PayPal, Google Wallet, Apple Passbook - and Now Wocket Smart Wallet : Who Addresses Issues of Security? 3Digital Wallet Choices; PayPal, Google Wallet, Apple Passbook - and Now Wocket Smart Wallet : Who Addresses Issues of Security? 4Digital Wallet Choices; PayPal, Google Wallet, Apple Passbook - and Now Wocket Smart Wallet : Who Addresses Issues of Security? 5Digital Wallet Choices; PayPal, Google Wallet, Apple Passbook - and Now Wocket Smart Wallet : Who Addresses Issues of Security? 6Digital Wallet Choices; PayPal, Google Wallet, Apple Passbook - and Now Wocket Smart Wallet : Who Addresses Issues of Security? 7Climate change will threaten fish by drying out Southwest US streams, study predicts 2Climate change will threaten fish by drying out Southwest US streams, study predicts 3
... at Johns Hopkins have discovered how to block a molecular ... oxygen during a stroke. The Hopkins study, conducted on mice, ... protein on the surface of nerve cells called the EP1 ... as ONO-8713, turns it off. , The finding ...
... garden compost to forest greenery, the mold Aspergillus fumigatus ... its impact. The most common mold causing infection, A. ... among people with weakened immune systems. , Now, in ... scientists at The Institute for Genomic Research (TIGR) and their ...
... Chinese men are selectively switching from traditional Chinese ... but sticking with tradition for ailments such as ... published in Environmental Conservation. , The finding supports ... at the advent of Viagra's commercial release in ...
Cached Biology News:Blocking the nerve receptor EP1 in mouse models reduces brain damage caused by stroke 2Blocking the nerve receptor EP1 in mouse models reduces brain damage caused by stroke 3Breaking the mold: Research teams sequence three fungus genomes 2Viagra's hidden help for wildlife 2
(Date:8/19/2014)... Columbia, Md. (PRWEB) August 19, 2014 ... integrated liquid chromatography systems, Prominence-i and Nexera-i, adding ... UHPLC systems. Combining excellent functionality, an intuitive operating ... performance and a more efficient workflow for conventional ... systems feature innovative, intuitive and intelligent design so ...
(Date:8/19/2014)... IRVINE, Calif. (PRWEB) August 19, 2014 ... Indiegogo campaign to raise $200,000 to fund a ... diagnostic device. , This development is a ... one-size-fits-all model of care to the implementation of ... patient-centric method of practicing medicine. , Indiegogo contributions ...
(Date:8/19/2014)... XenoTech announces an exclusive partnership with ... from bioactive small molecules. Based on an ... convenient and timely assessment of critical metabolite and ... of Commercial Operations, Christian Darabant, “the value of ... be measured directly by comparison with the approximate ...
(Date:8/19/2014)... In November 2012, the European Union (EU) ... (PBRER) in a new PSUR – responding to the increasing ... of a drug. Adopted in many regions, the main objectives ... a comprehensive and critical analysis of new or emerging information ... any new evidence of the potential benefits of a drug; ...
Breaking Biology Technology:Shimadzu’s New i-Series Integrated Liquid Chromatography Systems Provide Laboratories Wider Range of Analytical Capabilities 2Shimadzu’s New i-Series Integrated Liquid Chromatography Systems Provide Laboratories Wider Range of Analytical Capabilities 3Cellgen Diagnostics Launches Indiegogo Crowdfunding Campaign for DNA Medical Testing Device 2Cellgen Diagnostics Launches Indiegogo Crowdfunding Campaign for DNA Medical Testing Device 3Beyond Metabolite Identification, Testable Quantities Now Offered by XenoTech 2Beyond Metabolite Identification, Testable Quantities Now Offered by XenoTech 3Top Five Best Practices for Developing Your Periodic Benefit Risk Evaluation Report (PBRER), New Webinar Hosted by Xtalks 2
... Inc. (OTC/BB: GNBP), a biotechnology company developing targeted cancer ... its Board of Directors.  Mr. Voyticky is currently President ... an oil and gas exploration company, and has more ... merger and acquisition consulting. The Genesis Biopharma Board now ...
... WOODLANDS, Texas, July 18, 2011 One of the ... to achieve Meaningful Use requirements in the coming years. ... learning more about Meaningful Use requirements and how these ... a free webinar at 1 p.m. EDT (10 a.m. ...
... 90% , Reduction in HIV ... SEEK, a privately owned biopharmaceutical company specializing,in ... of its HIV-v vaccine which demonstrates a one,log (approx ... placebo group, after just a single vaccine,injection. Gregory Stoloff, ...
Cached Biology Technology:Genesis Biopharma Names David Voyticky to Board of Directors 2Medicare HIT Incentive Update for the Oncology Practice - Free Educational Webinar 2Medicare HIT Incentive Update for the Oncology Practice - Free Educational Webinar 3SEEK Announces Clinical Proof of Efficacy in HIV Vaccine Phase Ib/II Human Trial 2SEEK Announces Clinical Proof of Efficacy in HIV Vaccine Phase Ib/II Human Trial 3SEEK Announces Clinical Proof of Efficacy in HIV Vaccine Phase Ib/II Human Trial 4SEEK Announces Clinical Proof of Efficacy in HIV Vaccine Phase Ib/II Human Trial 5SEEK Announces Clinical Proof of Efficacy in HIV Vaccine Phase Ib/II Human Trial 6
... Features hardwall acrylic panels mounted ... to form a free-standing modular ... Class 10/ISO 3. Optional ceiling ... ionizers are configured to customer ...
...
... This modular benchtop fume hood ... allowing safe indoor release of ... most organic contaminants. Configurations are ... flow; options include final HEPA ...
...
Biology Products: