Navigation Links
Tiny algae shed light on photosynthesis as a dynamic property
Date:11/28/2012

One of the first chemical reactions children learn is the recipe for photosynthesis, combining carbon dioxide, water and solar energy to produce organic compounds. Many of the world's most important photosynthetic eukaryotes such as plants did not develop the ability to combine these ingredients themselves. Rather, they got their light-harnessing organelles -- chloroplasts -- indirectly by stealing them from other organisms. In some instances, this has resulted in algae with multiple, distinct genomes, the evolutionary equivalent of a "turducken*."

Chloroplasts originally evolved from photosynthetic bacteria by primary endosymbiosis, in which a bacterium or other prokaryote is engulfed by a eukaryotic host. The chloroplasts of red and green algae have subsequently come to reside within other, previously non-photosynthetic eukaryotes by secondary endosymbiosis. Such events have contributed to the global diversity of photosynthetic organisms that play a crucial role in regulating and maintaining the global carbon cycle. In most organisms that acquired photosynthesis by this mechanism, the nucleus from the ingested algal cell has disappeared, but in some cases it persists as a residual organelle known as a nucleomorph. Such organisms have four distinct genomes.

To better understand the process of secondary endosymbiosis and why nucleomorphs persist in some organisms, an international team composed of 73 researchers at 27 institutions, including the U.S. Department of Energy Joint Genome Institute (DOE JGI), collaborated to sequence and analyze the genomes and transcriptomes (the expressed genes) of two tiny algae. The team led by John Archibald of Canada's Dalhousie University published their findings on the algae Bigelowellia natans and Guillardia theta online November 29, 2012 in Nature.

Archibald compared these algae to Russian nesting dolls with "sophisticated sub-cellular protein-targeting machinery" and four
'/>"/>

Contact: David Gilbert
degilbert@lbl.gov
925-296-5643
DOE/Joint Genome Institute
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Algae held captive and genes stolen in crime of evolution
2. Bioengineered marine algae expands environments where biofuels can be produced
3. Algae Biomass Organization hails new UCSD study showing saltwater algae viable for biofuels
4. Algae can draw energy from other plants
5. DNA analysis aids in classifying single-celled algae
6. The slippery slope to slime: Overgrown algae causing coral reef declines
7. Oil from algae closer to reality through studies by unique collaboration of scientists
8. U OF A expert pinpoints nutrient behind fresh water algae blooms
9. Ecologist: Genetically engineered algae for biofuel pose potential risks that should be studied
10. Viruses linked to algae that control coral health
11. A nanoscopic look at the estuarys green algae
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/22/2014)... Oct. 20, 2014 The Nano-Bio Manufacturing Consortium ... Force Research Laboratory (AFRL), has chosen a project proposed ... the University of Arizona College of Medicine – ... AzCIM project,s goal is to assess different sweat collection ... volumes of sweat under a variety of human-body conditions, ...
(Date:10/18/2014)... stress-related psychiatric disorders are associated with increased ... mechanisms underlying this relation are unknown. Understanding ... of targeted preventive strategies and new or ... work is presented at the European College ... international group of researchers from Germany and ...
(Date:10/17/2014)... available in German . ... every day in order to reproduce? And why are there ... of the latest issue of the research journal Molecular ... biologist Steven Ramm from Bielefeld University Bielefeld has compiled this ... unusual for a female to copulate with several males in ...
Breaking Biology News(10 mins):Nano-Bio Manufacturing Consortium Selects Project Proposed by Arizona Center for Integrative Medicine to Optimize Human Performance Monitoring Techniques 2Nano-Bio Manufacturing Consortium Selects Project Proposed by Arizona Center for Integrative Medicine to Optimize Human Performance Monitoring Techniques 3Researchers find why depression and aging linked to increased disease risk 2Sperm wars 2
... of time, knowledge and training in health promotion and ... the top barriers to including effective physical activity counseling ... The University of Texas School of Public Health, part ... Houston (UTHealth). "Individual and organization barriers must be ...
... DNA can trigger tumorigenesis. Researchers from Ludwig-Maximilians-Universitaet (LMU) ... a protein involved in the repair and signaling ... light on the origins of neurodegenerative diseases and ... or environmental toxins can cause double-stranded breaks in ...
... have found that acceptance of the site of a ... economic background. Writing in the International Journal of Environmental ... more often have a positive opinion on the location ... While the actual quantities of nuclear waste around the ...
Cached Biology News:UTHealth study addresses barriers to physical activity counseling 2UTHealth study addresses barriers to physical activity counseling 3Where to put nuclear waste? 2
(Date:10/25/2014)... RESTON, Va. (PRWEB) October 24, 2014 ... (WEDI), the nation’s leading nonprofit authority on ... in healthcare information exchange, announces its appointment of ... Privacy Workgroup. The workgroup leaders include:, ... Optum ,     Erik Pupo, Specialist Leader, Deloitte ...
(Date:10/25/2014)... Addison, TX (PRWEB) October 24, 2014 ... skincare products, announced the winners of its “Reflect Your ... who have not only seen a difference in their ... also experienced a new outlook on life as a ... Youth” contest originated as an effort by Nerium International ...
(Date:10/25/2014)... 2014 A new way to produce ... of current skin grafting technologies, it also speeds up ... method, outlined in the October issue of STEM CELLS ... skin injuries that result from severe burns and chronic ... skin’s regenerative elements. These wounds heal by contraction, with ...
(Date:10/25/2014)... , October 24, 2014 ... clinical-stage pharmaceutical company focused on the development of oral ... Nadav Kidron will present at FireRock Capital,s ... Capital,s Annual Micro-Cap Conference ,Date: Tuesday, October 28, 2014 ... New York City , ...
Breaking Biology Technology:WEDI Appoints Four New Security and Privacy Workgroup Co-chairs 2Nerium International™ Inspires Conversation About the Journey of Aging with “Reflect Your Youth” Contest 2New engineering method shows promise for faster healing, more cosmetically appealing skin grafts 2New engineering method shows promise for faster healing, more cosmetically appealing skin grafts 3Oramed to Present at the FireRock Annual Micro-Cap Conference 2Oramed to Present at the FireRock Annual Micro-Cap Conference 3
... an Educational Webinar "How Organizations Can Make the Transition ... featuring Virtify, Inc. , , CAMBRIDGE, Mass., ... ), the market leader in Enterprise Content Compliance solutions ... ), a provider of Enterprise Compliance and Quality ...
... -- China-Biotics,Inc. (Nasdaq: CHBT ) ("China-Biotics," ... manufacture, research, development, marketing and,distribution of probiotics products ... management will present at the upcoming,China Rising Conference ... on May 18,2009. , ...
... April 30 Amicus Therapeutics (Nasdaq: FOLD ... the regular close of markets on Thursday, May 7, ... live conference call and webcast that afternoon at 5 ... conference call at 5 p.m. EDT by dialing 877-874-1565 ...
Cached Biology Technology:Event Alert: 'SPL R4 Compliance and its Impact on Regulatory Submission Processes' 2Event Alert: 'SPL R4 Compliance and its Impact on Regulatory Submission Processes' 3China-Biotics, Inc. to Present at CCG Investor Relations' China Rising Conference 2China-Biotics, Inc. to Present at CCG Investor Relations' China Rising Conference 3Amicus Therapeutics Announces First Quarter 2009 Financial Results Release Date 2
... Synthetic peptide derived from the internal ... Specificity: Specific for the junctophilin-1 protein. ... brain and skeletal muscle homogenates frozen ... Applications: Western blotting Immunohistochemistry(froz) ImmunofluorescenceStorage: ...
Laminin beta-1/gamma-1 (612C10)...
100 ug affinity purified rabbit anti-JIP-1 polyclonal antibody. Reacts with mouse and rat. Perform well in Western blotting. Other applications have not been tested. Storage Temperature: -20C Shi...
XBP-1 (F-4)...
Biology Products: