Navigation Links
Bacteria provide new insights into human decision making
Date:12/11/2009

at UCSD.

In nature, bacteria live in large colonies whose numbers may reach up to 100 times the number of people on earth. Many bacteria respond to extreme stresssuch as starvation, poisoning and irradiationby creating spores, dormant states that are highly resistant to the outside environment and that can germinate into fully functioning bacteria once the environment improves. The response involves more than 500 genes and takes about 10 hours in Bacillus subtilis, the bacterium used by the scientists in their study.

Each bacterium in the colony communicates via chemical messages and performs a sophisticated decision making process using a specialized network of genes and proteins. Modeling this complex interplay of genes and proteins by the bacteria enabled the scientists to assess the pros and cons of different choices in game theory, a branch of mathematics that attempts to model decision making by humans, in which an individual's success in making choices depends on the choices of others.

When bacteria form spores, the mother cell dies, but not before it stores a copy of its DNA in a special capsule called the spore. The mother cell then breaks open and its DNA and remaining proteins are released to the environment. The bacteria on the road to spore formation don't always form spores. They can change their fate and escape into a different state called "competence."

In this state, the bacteria change their membranes to allow the easy absorption of material from the dying cells. This allows for the creation of a "competence intermediate state," in which the bacteria hope to survive even under these unfriendly conditions. When normal conditions are restored, bacteria return to normal life without having to make a spore. The advantage of this situation is the ability of quickly returning to normality, but there is also a disadvantage: Likely death if the conditions get even worse. As a result, each bacterium has a dilemm
'/>"/>

Contact: Kim McDonald
kmcdonald@ucsd.edu
858-534-7572
University of California - San Diego
Source:Eurekalert

Page: 1 2 3 4 5

Related biology news :

1. UCLA researchers engineer bacteria to turn carbon dioxide into liquid fuel
2. Self-destructing bacteria improve renewable biofuel production
3. Researchers demonstrate nanoscale X-ray imaging of bacterial cells
4. Bacterial gut symbionts are tightly linked with the evolution of herbivory in ants
5. Scientists gain new understanding of disease-causing bacteria
6. Researchers discover biological basis of bacterial immune system
7. Researchers establish common seasonal pattern among bacterial communities in Arctic rivers
8. Factors from common human bacteria may trigger multiple sclerosis
9. Biologists discover bacterial defense mechanism against aggressive oxygen
10. Like humans, ants use bacteria to make their gardens grow
11. Texas A&M Researchers Examine How Viruses Destroy Bacteria
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/21/2015)... 2015 Today, ZTE announced its Android smartphone ... as expected revenues in 2015 that relate to sales of FPC1025 ... of approximately 2,200 MSEK for 2015. Jörgen Lantto, CEO ... manufacturer in China and we are proud ... 5 for Axon , its first ...
(Date:7/13/2015)... Calif. , July 13, 2015 ... developer of human interface solutions, today announced sampling ... touch and display driver integration (TDDI) product targeting ... the first to combine Synaptics , best-in-class ... proven display driver technology developed in the company,s ...
(Date:7/9/2015)... 2015  Unchained Labs just can,t get enough ... Avid Nano. Avid Nano designs, develops and manufactures ... Also today, Unchained Labs UNcaged the ... use protein sizing system. The pUNk is a ... size, size distribution, aggregation population and molecular weight. ...
Breaking Biology News(10 mins):FPC's Touch Fingerprint Sensor FPC1025 in ZTE's Smartphone Axon 2Synaptics Announces Sampling of Second Generation TDDI Solutions 2Synaptics Announces Sampling of Second Generation TDDI Solutions 3Unchained Labs just can't get enough, acquires Avid Nano, rocks out the new pUNk! 2
... nanoSIMS project will provide high-resolution label-free imaging to ... for the first time. The National ... GlaxoSmithKline, has initiated a project called 3D nanoSIMS ... unmatched spatial resolution, capable of measuring the intracellular ...
... received a $540,000 federal grant to devise methods ... medicines to tumors or carry dyes that help ... and nanoelectonics, and more. Building precisely defined ... for chemists. To provide control and precision, the ...
... Japan joined forces in a quest to correct a faulty ... Nature , used stem cells to correct a defective ... promise to correct chromosome abnormalities that give rise to birth ... future, it may be possible to use this approach to ...
Cached Biology News:NPL links up with GlaxoSmithKline to support research into new medicines 2Developing methods for building precise nanostructures 2Nature study discovers chromosome therapy to correct a severe chromosome defect 2Nature study discovers chromosome therapy to correct a severe chromosome defect 3
(Date:7/30/2015)... CA (PRWEB) , ... July 30, 2015 , ... ... successful completion of a field clinical study of its canine osteoarthritis stem cell ... with Aratana Therapeutics (Kansas City, KS) and will be marketed in the US ...
(Date:7/30/2015)... , Inc. (NASDAQ: SNMX ), a leading company ... commercialize novel flavor ingredients for the food, beverage, and ... second quarter 2015. "Moving into the ... achieve our commercial and financial goals," stated John Poyhonen, ... our last quarterly earnings report, our two partners have ...
(Date:7/30/2015)... , July 30, 2015 Ascendis Pharma ... that applies its innovative TransCon technology to address ... results from a six-month Phase 2 study to ... Growth Hormone in 53 treatment-naïve, pre-pubertal children with ... are extremely pleased with the top-line results from ...
(Date:7/30/2015)... , July 30, 2015  Discovery Laboratories, Inc. ... has received the second $1.0M tranche under a ... (SBIR) grant valued at up to $3.0 million ... KL4 surfactant as a potential medical countermeasure to ... Labs was awarded an initial $1.0 million under ...
Breaking Biology Technology:VetStem Biopharma Successfully Completes Large Milestone Efficacy Study for its Flagship Canine Osteoarthritis Stem Cell Product 2VetStem Biopharma Successfully Completes Large Milestone Efficacy Study for its Flagship Canine Osteoarthritis Stem Cell Product 3SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 2SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 3SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 4SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 5SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 6SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 7SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 8SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 9Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 2Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 3Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 4Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 5Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 6Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 7Discovery Labs Receives $1.0 million under an SBIR Grant in Continuing Support of the Development of Aerosolized KL4 Surfactant to Address Radiation-Induced Lung Injury 2Discovery Labs Receives $1.0 million under an SBIR Grant in Continuing Support of the Development of Aerosolized KL4 Surfactant to Address Radiation-Induced Lung Injury 3
... , Shareholders ... , Call by over 18% of ... Significant funding shortfall identified in the Progen merger proposal , ... Late last week Progen Pharmaceuticals Limited (ASX: PGL) responded to the requisitioning ...
... Clinics of Excellence, LLC, the nation,s only physician-driven ... its 62nd comprehensive Evidence-Based Treatment Protocol covering 11 ... 4th Annual Community Oncology Conference today. "Our 200+ ... to launch the protocols across its network in ...
... Feb. 6 Stereotaxis, Inc. (Nasdaq:, STXS ) ... for the,fourth quarter and full year ended December 31, ... The Company will host a conference call and,webcast on ... to discuss,the Company,s fourth quarter results and current corporate ...
Cached Biology Technology:Cytopia and Other Progen Shareholders Maintain Call for Meeting 2Cytopia and Other Progen Shareholders Maintain Call for Meeting 3Cytopia and Other Progen Shareholders Maintain Call for Meeting 4Cancer Clinics of Excellence (CCE) Releases 62nd Evidence-Based Treatment Protocol 2Stereotaxis Announces Fourth Quarter and Full Year 2008 Earnings Release Date and Conference Call 2
... Thermo's Wellwash AC is the easiest ... and is provided with liquid level ... bottles. The integrated orbital shaker and ... excellent washing performance. The big bottle ...
... Labsystems' Wellwash AC is the ... washer available, and is provided ... wash, waste and rinse bottles. ... automatic rinsing and priming functions ...
The Wellwash 4 Mk 2 microplate washer combines flexibility, simplicity and ease of use. This reliable microplate washer meets the exacting standards of today's ELISA assay requirements....
... Rabbit polyclonal to MLF1 Interacting Protein/PBIP1 ... all tested applications). ... to amino acids 73-83 of Human ... Entrez Gene ID: 359815 ...
Biology Products: