Navigation Links
Deep in the ocean, a clam that acts like a plant

How does life survive in the black depths of the ocean? At the surface, sunlight allows green plants to "fix" carbon from the air to build their bodies. Around hydrothermal vents deep in the ocean live communities of giant clams with no gut and no functional digestive system, depending on symbiotic bacteria to use energy locked up in hydrogen sulfide to replace sunlight. Now, the genome of this symbiont has been completely sequenced and published in Science.

"The difference here is that while plants get their energy and carbon via photosynthesis by chloroplast symbionts, this clam gets its energy via chemosynthesis," said Jonathan Eisen, a professor at the UC Davis Genome Center and an author on the paper.

The actual work of photosynthesis in green plants is done by chloroplasts, descended from primitive single-celled organisms that were incorporated into other cells billions of years ago.

"The energy from hydrogen sulfide is used to drive carbon fixation in much the same way that chloroplasts carry out carbon fixation," Eisen said. The symbiotic bacteria also fix nitrogen and produce amino acids, vitamins and other nutrients required by the clam.

Studies of the deep sea have implications for studying the origins of life, Eisen said. Life on Earth may have got its start with microbes living on such chemical reactions, before the evolution of photosynthesis.

"And they’re just plain interesting," Eisen added.

If you were thinking that giant clams sound tasty, think again. The hydrogen sulfide gives them a strong smell of rotting eggs.
'"/>

Source:University of California - Davis


Page: 1

Related biology news :

1. New type of rejection blocker protects kidneys after transplant
2. Implantable pumps extend lives of patients too sick for transplant
3. Diabetes slows nerve recovery after heart transplant
4. Biologists develop large gene dataset for rice plant
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/16/2017)... 2017  Genos, a community for personal genetic ... received Laboratory Accreditation from the College of American ... laboratories that meet stringent requirements around quality, accuracy ... "Genos is committed to maintaining the ... honored to be receiving CAP accreditation," said ...
(Date:2/10/2017)... Feb 10, 2017 Research and ... "Personalized Medicine - Scientific and Commercial Aspects" to ... ... Diagnosis is integrated with therapy for selection of treatment as ... detection and prevention of disease in modern medicine. Biochip/microarray technologies ...
(Date:2/8/2017)... 2017 Report Highlights ... The global synthetic-biology market reached nearly ... 2021, growing at a compound annual growth rate (CAGR) of ... the global markets for synthetic biology. - Analyses of global ... projections of compound annual growth rates (CAGRs) through 2021. - ...
Breaking Biology News(10 mins):
(Date:3/23/2017)... 23, 2017 In today,s pre-market ... in the Biotech industry: Sangamo Therapeutics Inc. (NASDAQ: SGMO), ... MKT: SYN), and Regulus Therapeutics Inc. (NASDAQ: ... Credit Suisse upgraded its rating on Pharmaceuticals/Biotechnology to "Overweight" from "Market Weight." ... report at: ...
(Date:3/22/2017)... , March 22, 2017  UBM and ... to announce their extended partnership and the third ... headlined by the 21 st Annual MassMEDIC ... taking place May 3-4, 2017. ... Technology Association (ADVAMED) President and CEO, Scott ...
(Date:3/22/2017)... , March 22, 2017 MarketNewsUpdates.com ... ... cancer conditions are being pressured as of late due to ... cancer pain management has a dramatic impact on patient,s quality ... and development activities for identifying new forms of opioid formulations ...
(Date:3/22/2017)... ... March 21, 2017 , ... Okyanos Cell Therapy has announced Tallahassee, FL ... live events series, “Stem Cell Therapy: The Next Phase in the Evolution of Medicine.” ... Stem Cell Research and Therapy Act, Okyanos maintains a mission to help “no-option” ...
Breaking Biology Technology: