Navigation Links
NASA Research Reveals Major Insight Into Evolution of Life on Earth
Date:8/19/2009

MOFFETT FIELD, Calif., Aug. 19 /PRNewswire-USNewswire/ -- Humans might not be walking on Earth today if not for the ancient fusing of two microscopic, single-celled organisms called prokaryotes, NASA-funded research has found.

(Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO)

By comparing proteins present in more than 3000 different prokaryotes -- a type of single-celled organism without a nucleus -- molecular biologist James A. Lake from the University of California at Los Angeles' Center for Astrobiology showed that two major classes of relatively simple microbes fused together more than 2.5 billion years ago. Lake's research reveals a new pathway for the evolution of life on Earth. These insights are published in the Aug. 20 online edition of the journal Nature.

This endosymbiosis, or merging of two cells, enabled the evolution of a highly stable and successful organism with the capacity to use energy from sunlight via photosynthesis. Further evolution led to photosynthetic organisms producing oxygen as a byproduct. The resulting oxygenation of Earth's atmosphere profoundly affected the evolution of life, leading to more complex organisms that consumed oxygen, which were the ancestors of modern oxygen-breathing creatures including humans.

"Higher life would not have happened without this event," Lake said. "These are very important organisms. At the time these two early prokaryotes were evolving, there was no oxygen in the Earth's atmosphere. Humans could not live. No oxygen-breathing organisms could live."

The genetic machinery and structural organization of these two organisms merged to produce a new class of prokaryotes, called double membrane prokaryotes. As they evolved, members of this double membrane class, calle
'/>"/>

SOURCE NASA
Copyright©2009 PR Newswire.
All rights reserved

Page: 1 2

Related medicine technology :

1. The Multiple Myeloma Research Consortium (MMRC) and Proteolix Initiate Phase 2 Clinical Trial Investigating Carfilzomib for the Treatment of Multiple Myeloma
2. Multiple Myeloma Research Consortium (MMRC) Partners with Novartis to Advance Phase II Study of Deacetylase Inhibitor
3. Lexicon to Present Research Results at American Chemical Society Meeting Regarding Target of LX1031 Drug Candidate
4. Researchers at Cleveland Clinic Identify Site of Dysfunction in HDL, Carrier of Good Cholesterol
5. Video: New Research Discovers Independent Brain Networks Control Human Walking
6. Quark Pharmaceuticals Extends Research Agreement with State University of New York for Proprietary siRNA Compounds for Acute Hearing Loss
7. Cleveland Clinic Researchers Identify Mechanism Behind Platelet Function and Potentially Fatal Blood Clot Formation
8. HistoRx and Radiation Therapy Oncology Group Initiate Brain Tumor Biomarker Research Partnership
9. Diabetes Research Institute Invention Promotes Growth of Stem Cells into Insulin-Producing Cells
10. Researchers Identify Virus Possibly Responsible for Declining Honeybee Population Using 454 Sequencing Technology from Roche
11. Peregrine Researchers Report Data Showing Bavituximabs Potential to Shrink Human Prostate Tumors in Model of Relapsed Disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/27/2014)... SALT LAKE CITY , Aug. 27, 2014 ... that will expand its current Salt Lake City ... operations currently underway outside of Utah ... state over the next 20 years. " ... immense engineering and technical talent, many of whom can be ...
(Date:8/27/2014)... 27, 2014 Decision Resources Group finds that ... Memphis health system and hospital sector ... with rivals Methodist Le Bonheur Healthcare and Baptist Memorial ... coordinate patient care. In addition, a national contract recently ... health plan enrollment in the Memphis ...
(Date:8/27/2014)... 27, 2014 ISPE , the International ... released a preview of its Drug Shortages Prevention ... drug shortages and maintain a robust and reliable supply ... Plan, a first for the industry, was developed by ... and describes how industry can best prevent drug shortages ...
Breaking Medicine Technology:Varian Medical Systems Groundbreaking on Facility Expansion Triggers Influx of New Jobs to Salt Lake 2Varian Medical Systems Groundbreaking on Facility Expansion Triggers Influx of New Jobs to Salt Lake 3Varian Medical Systems Groundbreaking on Facility Expansion Triggers Influx of New Jobs to Salt Lake 4Memphis-area Health Systems Turn Attention to Clinical Integration 2ISPE Releases First Look at its Plan to Prevent Drug Shortages 2ISPE Releases First Look at its Plan to Prevent Drug Shortages 3ISPE Releases First Look at its Plan to Prevent Drug Shortages 4
... MTD ) today announced it will host a ... November 4, 2010 at 5:00 p.m. Eastern Time. To hear ... on the Company,s website. A replay of the webcast will ... TOLEDO is a leading global supplier of precision instruments and ...
... WEST PALM BEACH, Fla., Oct. 28 The ... pain is where it all begins.  Lasting for ... rest, time and medication.  For many, that is ... converts to chronic pain, and new methods must ...
Cached Medicine Technology:Technology, New Therapies Reduce Use of Addictive Prescriptions 2
(Date:8/28/2014)... Texas (PRWEB) August 28, 2014 MMAR ... The program is a chance for regular customers to ... Medical without the need for a wholesale license. It’s ... coaches, semi-professional athletic programs and others who regularly purchase ... , “Whether supporting your own active lifestyle or ...
(Date:8/28/2014)... Loudoun County, VA (PRWEB) August 28, 2014 ... secure software development, today announced that it has ... awarded 10/22/2013 with the performance start date of ... the Department of Homeland Security (DHS) agency that ... Under the contract, Coveros and InfoZen will automate ...
(Date:8/28/2014)... Fort Worth, Texas (PRWEB) August 28, 2014 ... experiencing significant growth over the past few years. The new ... - will offer higher quality and larger office space than ... for growth. , “We are pleased about our new ... Laurenzo said. “While our suite will be double in size ...
(Date:8/28/2014)... (PRWEB) August 28, 2014 UniVoIP, Inc, ... El Segundo, CA, today announced that they have been ... of Los Angeles Local Small Business Enterprise (Local SBE) ... and certified by the state of California and LA ... Cloud-hosted Telephony Solution to governmental agencies throughout ...
(Date:8/27/2014)... Aeroflow Healthcare has announced it ... of a strategic expansion of its durable medical ... ownership of new businesses through additional resources and ... , Last week, the company announced that it ... increase service in the High Point/Greensboro/Winston-Salem area. This ...
Breaking Medicine News(10 mins):Health News:MMAR Medical Announces Customer Membership Program 2Health News:Coveros Partners with InfoZen on USCIS Transformation Integration Award 2Health News:Cloud PBX Provider UniVoIP Gets Certified by the State of California and the County of Los Angeles Under the Local Small Business Enterprise (SBE) Preference Program 2Health News:Aeroflow Healthcare Seeks Strategic Acquisition Opportunities 2
... Applications Now Available for the 2008-2009 Academic ... American,Association of Colleges of Nursing (AACN) is ... have been selected to receive The California,Endowment-AACN ... program was developed to provide financial support, ...
... Governor Edward G.,Rendell today said the Pennsylvania Children,s ... at specific Rite Aid,stores in south central Pennsylvania on ... "We,re working hard to make sure every parent understands ... be covered by CHIP," Governor,Rendell said. "Through Cover All ...
... 18 Oakwood Southshore,Medical Center (OSMC) is one ... a generous gift from Anthony J. Pellegrino. Pellegrino,donated ... "The Southshore Promise is really our pledge ... Oakwood Southshore,Medical Center. "We are in the business ...
... Impact on ... Meth Use in Montana, PALO ALTO, Calif., Sept. ... of the,United States Senate today. Siebel was invited to brief the panel ... Montana --,where the Meth Project implemented its first statewide program. Since the,launch ...
... Collins Industries, a,leading manufacturer of specialty vehicles in ... Bus, Inc. production facility in Bluffton,Ohio. Company officials plan ... in South Hutchinson, Kansas by November 9, 2007. ... Bluffton, Ohio was,certainly a difficult decision. Since the purchase ...
... 150,children,s hospital CEOs, medical directors, trustees and other ... to,Capitol Hill on Wednesday, September 19 to call ... (SCHIP). At noon at the Retired,Officers Association Building, ... (D-MT) and Sherrod Brown (D-OH) on the state ...
Cached Medicine News:Health News:Eight Graduate Nursing Students Selected to Receive The California Endowment-AACN Minority Nurse Faculty Scholarship 2Health News:Eight Graduate Nursing Students Selected to Receive The California Endowment-AACN Minority Nurse Faculty Scholarship 3Health News:Eight Graduate Nursing Students Selected to Receive The California Endowment-AACN Minority Nurse Faculty Scholarship 4Health News:Governor Rendell Announces CHIP Enrollment Clinics at Several Rite Aid Stores 2Health News:$1 Million Gift Boosts Downriver Community 2Health News:Meth Project Chairman Testifies Before U.S. Senate Finance Committee 2Health News:Meth Project Chairman Testifies Before U.S. Senate Finance Committee 3Health News:Company Announces Closure of Bluffton, Ohio Plant 2Health News:Children's Hospitals in Washington to Lobby Congress to Reauthorize SCHIP Now 2
... 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 ...
... 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 ...
... 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 ...
... ARUP Laboratories is a national reference ... laboratory research and development. ARUP offers an ... unique medical tests in clinical and anatomic ... ARUP Laboratories' clients include more than half ...
Medicine Products: