Navigation Links
The origin of photosynthesis revealed
Date:2/21/2012

NEW BRUNSWICK, NJ: - Atmospheric oxygen really took off on our planet about 2.4 billion years ago during the Great Oxygenation Event. At this key juncture of our planet's evolution, species had either to learn to cope with this poison that was produced by photosynthesizing cyanobacteria or they went extinct. It now seems strange to think that the gas that sustains much of modern life had such a distasteful beginning.

So how and when did the ability to produce oxygen by harnessing sunlight enter the eukaryotic domain, that includes humans, plants, and most recognizable, multicellular life forms? One of the fundamental steps in the evolution of our planet was the development of photosynthesis in eukaryotes through the process of endosymbiosis.

This crucial step forward occurred about 1.6 billion years ago when a single-celled protist captured and retained a formerly free-living cyanobacterium. This process, termed primary endosymbiosis, gave rise to the plastid, which is the specialized compartment where photosynthesis takes place in cells. Endosymbiosis is now a well substantiated theory that explains how cells gained their great complexity and was made famous most recently by the work of the late biologist Lynn Margulis, best known for her theory on the origin of eukaryotic organelles.

In a paper "Cyanophora paradoxa genome elucidates origin of photosynthesis in algae and plants" that appeared this week in the journal Science, an international team led by evolutionary biologist and Rutgers University professor Debashish Bhattacharya has shed light on the early events leading to photosynthesis, the result of the sequencing of 70 million base pair nuclear genome of the one-celled alga Cyanophora.

In the world of plants, "Cyanophora is the equivalent to the lung fish, in that it maintains some primitive characteristics that make it an ideal candidate for genome sequencing," said Bhattacharya.

'/>"/>
Contact: Paula Quintin
quintin@aesop.rutgers.edu
848-932-4204
Rutgers University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. TGen-led study suggests origins of MRSA strain in food animals
2. The quest for sugars involved in origin of life
3. Radical theory explains the origin, evolution, and nature of life, challenges conventional wisdom
4. Restored wetlands rarely equal condition of original wetlands
5. Scientists discover new clue to the chemical origins of life
6. Understanding causes of obesity in Aboriginal children
7. New study sheds light on evolutionary origin of oxygen-based cellular respiration
8. Avalanche of reactions at the origin of life
9. NEI awards new grant to study the biological origins of eye allergies
10. Focus on glaucoma origins continues path toward potential cure
11. 50 million year old cricket and katydid fossils hint at the origins of insect hearing
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
The origin of photosynthesis revealed
(Date:12/22/2014)... Holiday Season may be the brightest ever for the ... long anticipated floodgates for consumer biometrics may finally be ... tablets, and wearable mobile devices that incorporate biometrics will ... nearly 4.8 billion biometric devices by 2020.   ...
(Date:12/19/2014)... , Dec. 18, 2014   LaunchKey , the first ... post-password and Internet of Things era, today announced the ... venture round was led by Metamorphic Ventures with participation ... Partners, VegasTechFund, and others.  LaunchKey has raised $4 million ...
(Date:12/17/2014)... Valencell, a leader in performance biometric data sensor ... leaders such as Intel, Jabra, Atlas, and Scosche to ... These products will be showcased at CES 2015, taking ... . "Our partners choose PerformTek biometrics, ...
Breaking Biology News(10 mins):First Season of Holiday Shopping with Mobile Biometric Payments Wraps Up With a Present for Biometrics Industry: A Rosy Forecast for More Than 2 Billion Users of 4.8 Billion Mobile Biometric Devices by 2020 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 3Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2
... tactile learning book, "Touch the Earth," on Monday, April 19, ... on the National Mall organized by the Earth Day Network. ... published last month, with its authors and illustrators on hand ... a multimedia approach to teach middle school students about the ...
... climate change, a new book by Claire L. Parkinson, ... Center in Greenbelt, Md., can provide some answers. ... Beware the Big Fix," will be published this week ... warming is such a big deal, summarizes 4.6 billion ...
... the Carnegie Institution,s Department of Global Ecology, is among ... the humanities and the arts, business, public affairs, and ... new class of members of the American Academy of ... most prestigious honorary societies, cited Field for his research ...
Cached Biology News:'Touch the Earth' to display at Earth Day on National Mall 2NASA scientist publishes new book: 'Coming Climate Crisis? Consider the Past, Beware the Big Fix' 2Carnegie's Chris Field elected to American Academy of Arts & Sciences 2
(Date:1/22/2015)... 22, 2015 Dr. Greg Leyer of UAS ... Scripps Natural Supplements Pre-Conference seminar on probiotics in San Diego, ... annual continuing education conference for health care professionals. This year’s ... topic of probiotics in health. Dr. Leyer spoke about the ...
(Date:1/22/2015)... Diagenode, Inc., a leading global ... and complete solutions for epigenetics research, recently launched ... the need for manual processing. The new ChIPettor ... of histones or transcription factors and a semi-automated ...
(Date:1/22/2015)... 22. 2015  Varian Medical Systems (NYSE: VAR ), ... for its commitment to sustainability with inclusion on a prestigious ... highest ranked healthcare equipment company among the Corporate Knights Global ... Economic Forum at Davos, Switzerland . ...
(Date:12/25/2014)... report “Service Quality Management and Telco Customer Experience Management ... Advancements, Worldwide Forecasts & Analysis (2014-2019)” defines and segments ... revenues. , Browse 152 market data tables, 19 ... “Service Quality Management (SQM) and Telco Customer Experience Management ...
Breaking Biology Technology:Diagenode Launches Unique Semi-Automated Solution for Chromatin Immunoprecipitation 2Varian Honored Among World's 100 Most Sustainable Corporations 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 3Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 4
... Plasma Protein Therapeutics Association (PPTA) recommends that the Centers ... to improve drug reimbursement under the Hospital Outpatient Perspective ... Panel on Ambulatory Payment Classification (APC) Groups meeting, PPTA ... hospitals that purchase drugs under the 340B program from ...
... 2011 Reportlinker.com announces that ... is available in its catalogue: ... Diagnostic Technologies: Assessment of Current ... Potential Market Applications ...
... 18, 2011 Creabilis SA, a clinical ... dermatology, inflammation and pain, announced today the expansion of ... experienced international pharma executives. Alex Leech joins as Vice ... Senior Vice President, Head of Development, and Peter Spargo ...
Cached Biology Technology:PPTA Urges CMS for Appropriate Hospital Outpatient Reimbursement for Plasma Protein Therapies 2PPTA Urges CMS for Appropriate Hospital Outpatient Reimbursement for Plasma Protein Therapies 3PPTA Urges CMS for Appropriate Hospital Outpatient Reimbursement for Plasma Protein Therapies 4Tumor Marker Diagnostic Technologies: Assessment of Current and Emerging Technologies, And Their Potential Market Applications 2Creabilis Expands Senior Management Team 2Creabilis Expands Senior Management Team 3