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:7/25/2014)... As reported by People Magazine in the article ... and Getting Sober (7/15), one of the most popular ... out to the public about his personal transformation. Now, two ... admits that moving on with his life was a challenge. ... drugs in 2012 and even spent some time in rehab. ...
(Date:7/25/2014)... San Diego, CA (PRWEB) July 25, 2014 ... regarding all the latest information from the FDA on ... on July 21, that one lot of Ibuprofen and one ... recalled due to mislabeled packaging. Oxcarbazepine is used ... with epilepsy. , The reason for the recall ...
(Date:7/25/2014)... 25, 2014 Parker Waichman LLP, a ... consumers comments on a recent tobacco lawsuit in which ... $23.6 billion in punitive damages. Cynthia Robinson brought the ... The case is Cynthia Robinson v. R.J. Reynolds Tobacco ... First Circuit Court, Escambia County, Florida; Case Number 2008 ...
(Date:7/25/2014)... 2014 Drexel University College of Medicine ... MS, FACP, has been appointed vice dean for education, effective ... from The Commonwealth Medical College, where she is currently chair ... affairs, and professor of medicine. , As a member ... Weber had a major role in many aspects of the ...
(Date:7/25/2014)... vulnerable neurons and reduce motor deficits in a ... University School of Medicine have shown. , The ... Parkinson,s Disease . , The findings demonstrate that ... at sufficient levels and have beneficial effects when ... Previous studies of XPro1595 in animals tested more ...
Breaking Medicine News(10 mins):Health News:'The Situation' Celebrates 8 Months of Sobriety 2Health News:'The Situation' Celebrates 8 Months of Sobriety 3Health News:Ibuprofen and Oxcarbazepine Tablets Recalled: AttorneyOne Monitors and Keep Consumers Informed 2Health News:A Florida Jury Awards Widow More Than $23 Billion in Punitive Damages in a Lawsuit Brought Against Tobacco Maker, R.J. Reynolds, Parker Waichman LLP Comments 2Health News:A Florida Jury Awards Widow More Than $23 Billion in Punitive Damages in a Lawsuit Brought Against Tobacco Maker, R.J. Reynolds, Parker Waichman LLP Comments 3Health News:Valerie D. Weber, MD, Appointed Vice Dean for Education at Drexel University College of Medicine 2Health News:Valerie D. Weber, MD, Appointed Vice Dean for Education at Drexel University College of Medicine 3Health News:Anti-inflammatory drug can prevent neuron loss in Parkinson's model 2
... PLAINS, N.Y., Oct. 11 "Every Baby Has,a Story," a ... as well as those who need help to survive and ... "This storytelling project lets proud parents all over the country ... said Dr. Jennifer L.,Howse, president of the March of Dimes. ...
... TORONTO, Oct. 10 /PRNewswire/ - CBM President Professor ... for the World Health,Organizations global initiative to eliminate ... the eve of World Sight Day 2007 at ... their longstanding 20 year partnership and,support, both financially ...
... Urges Passage of Plan to Give Access to Affordable ... one week after Cover,All Pennsylvanians, the centerpiece of his ... G. Rendell today held a,town meeting in Erie as ... tour will highlight the need to lower health care ...
... Ganz, President and Chief,Executive Officer of Regence, has been ... health policy experts convened by The Aspen Institute.,The organization ... the,national dialogue on health care reform leading up to ... Stewardship Project will expand the health care debate,to the ...
... who are given drugs in addition to lumpectomies or radiotherapy, ... drugs. This is especially true if their tumors respond to ... published in the online journal, Breast Cancer Research. , "Developing ... terms of survival," explained lead researcher Dr J van der ...
... urges Congress to,pass legislation this year to ... WASHINGTON, Oct. 10 The Health IT ... and former,Representative Nancy Johnson, today applauded Representatives ... that will bring health,information technology to all ...
Cached Medicine News:Health News:'Every Baby Has a Story' Campaign Tours the Nation for March of Dimes 2Health News:World Health Organization thanks CBM For their outstanding work 2Health News:Governor Rendell Launches 'Tour to Insure' In Erie; 2Health News:Governor Rendell Launches 'Tour to Insure' In Erie; 3Health News:Regence CEO to Chair National Effort Promoting Broader Health Care Stewardship 2Health News:Regence CEO to Chair National Effort Promoting Broader Health Care Stewardship 3Health News:Cancer conflict with chemotherapy treatment 2Health News:Health IT Now! Coalition Applauds Representatives Eshoo and Rogers for Introducing Health IT Legislation 2
(Date:7/25/2014)...  CVS Caremark Corporation (NYSE: CVS ) ... 5, 2014, at 8:30 a.m. (EDT) with analysts and ... An audio webcast of the conference call ... of the CVS Caremark website for all interested parties.  ... webcast will be archived and available on the web ...
(Date:7/25/2014)... MARLTON, N.J. , July 25, 2014 /PRNewswire/ ... visibility, brand protection and serialization solutions, has recently ... Business" that addresses current and future needs ... solutions for the old supply chain model no ... advances in technology, including the growth of mobile ...
(Date:7/25/2014)... July 25, 2014 Research and Markets ... Ophthalmic Diagnostic Devices Market 2014-2018" report to their ... About Ophthalmic Diagnostic Device An ... identify a defect or deficiency in the human visual ... disorders such as presbyopia, cataracts, glaucoma, retinal disorders, conjunctivitis, ...
Breaking Medicine Technology:Acsis Addresses Questions on the Modern Supply Chain 2Global Ophthalmic Diagnostic Devices Market 2014-2018: Key Vendors are Alcon, Carl Zeiss, Haag-Streit and Topcon 2
... 9, 2011 Rigel Pharmaceuticals, Inc. (Nasdaq: ... company,s chairman and chief executive officer, is scheduled to ... next week. Details of the events are as follows:Tuesday, ... & Investor ConferencePanel Topic:  "Rheumatoid Arthritis: the Real Joint ...
... YORK, Feb. 9, 2011 Reportlinker.com announces that ... its catalogue: Adalimumab - ... http://www.reportlinker.com/p0366162/Adalimumab---Comprehensive-patent-search.html Eliminate unnecessary risk with ... Pipeline Developer is a regularly updated, professional ...
Cached Medicine Technology:Rigel Announces Participation at Two Investor Conferences 2Reportlinker Adds Adalimumab - Comprehensive Patent Search 2Reportlinker Adds Adalimumab - Comprehensive Patent Search 3Reportlinker Adds Adalimumab - Comprehensive Patent Search 4
... is a national reference laboratory and a ... development. ARUP offers an extensive test menu ... in clinical and anatomic pathology. Owned by ... include more than half of the nation's ...
... ARUP Laboratories is a national reference laboratory ... research and development. ARUP offers an extensive ... medical tests in clinical and anatomic pathology. ... Laboratories' clients include more than half of ...
... Laboratories is a national reference laboratory and ... and development. ARUP offers an extensive test ... tests in clinical and anatomic pathology. Owned ... clients include more than half of the ...
... a national reference laboratory and a worldwide ... ARUP offers an extensive test menu of ... clinical and anatomic pathology. Owned by the ... more than half of the nation's university ...
Medicine Products: