Navigation Links
Like humans, amoebae pack a lunch before they travel
Date:1/19/2011

Some amoebae do what many people do. Before they travel, they pack a lunch.

In results of a study reported today in the journal Nature, evolutionary biologists Joan Strassmann and David Queller of Rice University show that long-studied social amoebae Dictyostellum discoideum (commonly known as slime molds) increase their odds of survival through a rudimentary form of agriculture.

Research by lead author Debra Brock, a graduate student at Rice, found that some amoebae sequester their food--particular strains of bacteria--for later use.

"We now know that primitively social slime molds have genetic variation in their ability to farm beneficial bacteria as a food source," says George Gilchrist, program director in the National Science Foundation's Division of Environmental Biology, which funded the research. "But the catch is that with the benefits of a portable food source, comes the cost of harboring harmful bacteria."

After these "farmer" amoebae aggregate into a slug, they migrate in search of nourishment--and form a fruiting body, or a stalk of dead amoebae topped by a sorus, a structure containing fertile spores. Then they release the bacteria-containing spores to the environment as feedstock for continued growth.

The findings run counter to the presumption that all "Dicty" eat everything in sight before they enter the social spore-forming stage.

Non-farmer amoebae do eat everything, but farmers were found to leave food uneaten, and their slugs don't travel as far.

Perhaps because they don't have to.

The advantages of going hungry now to ensure a good food supply later are clear, as farmers are able to thrive in environments in which non-farmers find little food.

The researchers found that about a third of wild-collected Dicty are farmers.

Instead of consuming all the bacteria they encounter, these amoebae eat less and incorporate bacteria into their migratory s
'/>"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
Source:Eurekalert  

Page: 1 2

Related medicine news :

1. U.S. Aims to Make School Lunches Healthier
2. No Scientific Proof Backing Stricter Tests of Ground Beef in School Lunches
3. Kids' Lunchboxes Go Bento for Easy Back to School Lunch Making, Thanks to Laptop Lunches
4. Boston Children's Museum Lunch & Learn Lecture Series
5. The SASH Program Hosts 5th Annual Springtime Luncheon for Elder Care Community
6. City Harvest Food Council Chefs Meet With Harlem Students For Lunch & Travel to Washington to Ask Congress to Invest in Child Nutrition
7. ReNew Life Online Scavenger Hunt to Award Grand Prize Trip to Florida, Lunch with Brenda Watson
8. Blue Cross and Blue Shield Companies To Host Fourth Annual National Walk@Lunch Day(R) on April 28, 2010
9. Jamba Juice Unveils All Fruit Smoothie School Lunch Program
10. Breast Cancer Radiation Before 1984 Tied to Heart Disease
11. Room light before bedtime may impact sleep quality, blood pressure and diabetes risk
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Like humans, amoebae pack a lunch before they travel
(Date:6/2/2015)... Claflin Medical Equipment , a Rhode Island ... RSI Equipment, Inc ., a New York ... With CME’s recent merger of Hospital Associates ... organizations which specialize in the procurement and delivery of ... forces, they now cover the entire country with three ...
(Date:6/2/2015)... MAP Health Management, LLC, a provider of outcome data, ... facilities, announced today that Jared Smith has joined the ... be responsible for developing and implementing a marketing strategy ... message, products and initiatives. , Prior to joining MAP, ... in Irving, Texas, where he was responsible for developing ...
(Date:6/2/2015)... (PRWEB) June 02, 2015 ... the opening of Surrey’s first fertility clinic. ... boasts a diverse, young community, with one ... http://www.theglobeandmail.com/news/british-columbia/four-reasons-bcs-fastest-growing-city-is-a-political-powerhouse/article21408253/ , Until now patients from ... had to come into Vancouver or Burnaby ...
(Date:6/2/2015)... Though almost the entire Park family was ... disease rule their lives. Organizing and hosting the June 14 ... life to the fullest and spreading awareness of HHT. , ... I won't live my life in a bubble because something ... want is to look back on your life with regret ...
(Date:6/2/2015)... New Haven, CT (PRWEB) June 02, 2015 ... the Year by Platform to Employment , a Connecticut ... prepare long-term unemployed workers and place them at appropriate companies. ... WorkPlace in partnership with the Connecticut Department of Labor. ... and a participant in the program, is being recognized for ...
Breaking Medicine News(10 mins):Health News:Claflin Medical Equipment (CME) Announces Acquisition of RSI Equipment, Inc. 2Health News:Jared Smith Joins MAP Health Management, LLC, as Vice President of Marketing 2Health News:Olive Fertility Centre Opens First Fertility Clinic in Surrey BC 2Health News:Family brings awareness to genetic disease at first Memphis walk 2Health News:CRN Named Company Partner of the Year by CT Employment Program 2
... campaign promotes awareness of quality measures at almost 4,000 ... The first national print advertising campaign focusing on the ... week by the U.S. Department of Health and Human ... in 58 major daily newspapers, promote the department,s Hospital ...
... the ... OR, ... of real-time imaging and image guidance systems for,use in the operating room, ... System in urology was presented at,the recent 2008 American Urological Association (AUA) ...
... Association expands national fats awareness campaign with ... ,Better Fats ... know that,the "better" fats (monounsaturated and polyunsaturated) can help reduce,their risk ... Association., To view the Multimedia News Release, go to:, ...
... to acquire ... Philips, share in MedQuist, MOUNT ... announced that earlier today Koninklijke Philips,Electronics N.V. (Philips), MedQuist,s majority ... approximately 69.5% ownership,interest in MedQuist to CBaySystems Holdings Ltd., a ...
... Changes Name to Create Brand Platform, Launches New ... Website, Readies for Market ... leader in therapeutic warming and non-pharmacologic pain management,systems, announced today ... ReGear is expanding its line of patented therapeutic warming,systems which ...
... AFL ) announced today that it will make ... Twenty-Fourth Annual Strategic Decisions Conference,2008., President and Chief ... he is scheduled to make a presentation on,May 28 ... Mr.,Cloninger will discuss the company,s outlook for 2008 and ...
Cached Medicine News:Health News:U.S. Web Site Helps Consumers Compare Hospitals 2Health News:Novadaq's SPY System was Topic of Best Poster in Scientific Session at AUA 2Health News:Novadaq's SPY System was Topic of Best Poster in Scientific Session at AUA 3Health News:Video: Most Americans Don't Know 'Better Fats' Benefit Heart Health 2Health News:Video: Most Americans Don't Know 'Better Fats' Benefit Heart Health 3Health News:MedQuist to Get New Majority Stakeholder 2Health News:MedQuist to Get New Majority Stakeholder 3Health News:MedQuist to Get New Majority Stakeholder 4Health News:Coventina Healthcare Enterprises, Inc. is Now ReGear Life Sciences, Inc. 2Health News:Aflac Incorporated to Present at the Sanford C. Bernstein & Co., LLC Twenty-Fourth Annual Strategic Decisions Conference 2008 2
(Date:6/2/2015)...  Accuray Incorporated (Nasdaq: ARAY ), announced today ... the Goldman Sachs 36th Annual Global Healthcare Conference in ... Wednesday, June 10, 2015 at 4:00pm PT.   ... available on the Investor Relations page of the Company,s ... the presentation will begin approximately one hour after the ...
(Date:6/2/2015)... , Minn. and WELLESLEY, Mass., June 2, 2015 ... owner, Ampersand Capital Partners (Ampersand), announced the acquisition ... of Array BioPharma Inc. (Array).  Accuratus was formed ... Eagan, MN acquired Microtest Labs ... analytical and microbial testing services to the medical ...
(Date:6/2/2015)...  Nektar Therapeutics (NASDAQ: NKTR ) and The ... a research collaboration that includes a Phase 1/2 clinical ... preferentially stimulate production of CD8-positive T cells, which are ... which is also known as the Interleukin-2 receptor beta ... to increase proliferation of these effector T cells. 1 ...
Breaking Medicine Technology:Accuratus Lab Services Expands Capabilities with Acquisition of CMC Operation of Array BioPharma 2Accuratus Lab Services Expands Capabilities with Acquisition of CMC Operation of Array BioPharma 3Nektar and MD Anderson Cancer Center Announce Phase 1/2 Clinical Research Collaboration for NKTR-214, a CD122-Biased Immuno-Stimulatory Cytokine 2Nektar and MD Anderson Cancer Center Announce Phase 1/2 Clinical Research Collaboration for NKTR-214, a CD122-Biased Immuno-Stimulatory Cytokine 3Nektar and MD Anderson Cancer Center Announce Phase 1/2 Clinical Research Collaboration for NKTR-214, a CD122-Biased Immuno-Stimulatory Cytokine 4Nektar and MD Anderson Cancer Center Announce Phase 1/2 Clinical Research Collaboration for NKTR-214, a CD122-Biased Immuno-Stimulatory Cytokine 5Nektar and MD Anderson Cancer Center Announce Phase 1/2 Clinical Research Collaboration for NKTR-214, a CD122-Biased Immuno-Stimulatory Cytokine 6
... Pharmasset, Inc. (Nasdaq: VRUS ) announces that ... to be held September 20-22, 2010 at the Grand Hyatt, ... Officer, will provide an overview of the company at the ... (ET). To access a simultaneous webcast of Mr. ...
... (NYSE: ALR ) announced today that, in connection ... due 2018, it entered into a purchase agreement with the ... size of the offering was increased from $350.0 million to ... are being offered at 100.0% of the aggregate principal amount ...
Cached Medicine Technology:Pharmasset to Present at the UBS Global Life Sciences Conference 2Pharmasset to Present at the UBS Global Life Sciences Conference 3Alere Inc. Announces Pricing of Senior Subordinated Notes Offering; Offering Size Increased to $400.0 Million 2
... a rigid fixation system for small bone orthopedic ... and a superior screw and plating system in ... of true lag screws used for the fixation ... screw design eliminates the need to overdrill the ...
True/Fix Distal Femoral Nail System...
... No matter what cement youre using, the ... a better mix. Vortex is stirring up traditional ... consistent homogenous mix every time. The time-saving crank ... handle means less effort and less stirring, ...
... Simple, cost-effective microfiltration for your ... autotransfusion also brings you an easy ... safety of microfiltration for a variety ... or postoperative applications, autologous or homologous ...
Medicine Products: