Navigation Links
Ahoy! First ocean vesicles spotted
Date:1/9/2014

CAMBRIDGE, Mass-- Marine cyanobacteria tiny ocean plants that produce oxygen and make organic carbon using sunlight and CO2 are primary engines of Earth's biogeochemical and nutrient cycles. They nourish other organisms through the provision of oxygen and with their own body mass, which forms the base of the ocean food chain.

Now scientists at MIT have discovered another dimension of the outsized role played by these tiny cells: The cyanobacteria continually produce and release vesicles, spherical packages containing carbon and other nutrients that can serve as food parcels for marine organisms. The vesicles also contain DNA, likely providing a means of gene transfer within and among communities of similar bacteria, and they may even act as decoys for deflecting viruses.

In a paper published this week in Science, postdoc Steven Biller, Professor Sallie (Penny) Chisholm, and co-authors report the discovery of large numbers of extracellular vesicles associated with the two most abundant types of cyanobacteria, Prochlorococcus and Synechoccocus. The scientists found the vesicles (each about 100 nanometers in diameter) suspended in cultures of the cyanobacteria as well as in seawater samples taken from both the nutrient-rich coastal waters of New England and the nutrient-sparse waters of the Sargasso Sea.

Although extracellular vesicles were discovered in 1967 and have been studied in human-related bacteria, this is the first evidence of their existence in the ocean.

"The finding that vesicles are so abundant in the oceans really expands the context in which we need to understand these structures," says Biller, first author on the Science paper. "Vesicles are a previously unrecognized and unexplored component of the dissolved organic carbon in marine ecosystems, and they could prove to be an important vehicle for genetic and biogeochemical exchange in the oceans."

Billions and billion
'/>"/>

Contact: Denise Brehm
brehm@mit.edu
617-253-8069
Massachusetts Institute of Technology
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Kessler Foundation implements Ekso Bionics first commercial robotic exoskeleton
2. Research reveals first evidence of hunting by prehistoric Ohioans
3. First model of how buds grow into leaves
4. American College of Rheumatology releases first classification criteria for polymyalagia rheumatica
5. Ottawa researchers to lead world-first clinical trial of stem cell therapy for septic shock
6. First complete full genetic map of promising energy crop
7. FirstMark Announces New Hire Jay Houtman as Southeast Regional Sales Manager
8. FirstMark Exhibiting at the Inaugural Atlanta Clinical Cardiology Update
9. New technology tracks sparrow migration for first time from California to Alaska
10. First mass extinction linked to marine anoxia
11. Scientists complete first-ever emperor penguin count from space
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/17/2015)... , Aug. 17, 2015  NXT-ID, Inc. (NASDAQ: ... authentication company focused on the growing mobile commerce market ... new sales campaign for Q4 2015. The new marketing ... team consisting of Amplitude Marketing Group ( http://amplitudemarketing.com/ ) ... Group is a leader in retail driven marketing and ...
(Date:8/12/2015)... 12, 2015  Synaptics Inc. (NASDAQ: SYNA ... today announced that four of its fingerprint ID ... officially been named FIDO Certified™ by the Fast ... certification, Synaptics, Natural ID™ fingerprint solutions are fully ... (UAF) standard and are interoperable among other products ...
(Date:8/6/2015)... Aug. 6, 2015  Today, U.S. Congressman ... Crossmatch ™ to learn firsthand how Silicon Valley ... Crossmatch is a world leader in multi-factor identity ... are helping federal agencies and commercial organizations achieve ... "The vast majority of network breaches ...
Breaking Biology News(10 mins):NXT-ID, Inc. Launches Sales Campaign for Wocket Smart Wallet with Award Winning Marketing Team 2NXT-ID, Inc. Launches Sales Campaign for Wocket Smart Wallet with Award Winning Marketing Team 3Synaptics Announces FIDO Certification of Natural ID Fingerprint Solutions 2Synaptics Announces FIDO Certification of Natural ID Fingerprint Solutions 3Rep. Honda to Visit Crossmatch in Redwood City 2
... when the Food and Drug Administration is reconsidering the ... study offers further evidence to support a University of ... treatment may be in order. Richard ... Houston College of Pharmacy (UHCOP), has been investigating whether ...
... Ill. -- Most people know that too much sodium from ... that people trying to lower their blood pressure should also ... to sodium. Researchers found that the ratio of sodium-to-potassium ... disease than sodium or potassium alone. "There isn,t ...
... the first clinical evidence that gene therapy reduces symptoms ... this promising treatment which has endured a sometimes turbulent ... Human Gene Therapy the findings stem from ... conducted in Germany and led by an investigator at ...
Cached Biology News:New asthma research opposes current drug treatment, says UH prof 2New asthma research opposes current drug treatment, says UH prof 3New asthma research opposes current drug treatment, says UH prof 4Cutting salt isn't the only way to reduce blood pressure 2Gene therapy demonstrates benefit in patients with rheumatoid arthritis 2Gene therapy demonstrates benefit in patients with rheumatoid arthritis 3
(Date:8/31/2015)... Aug. 31, 2015  For people with Down syndrome, ... day. The biotechnology company, located in the Science + ... the best potential therapies yet for people with Down syndrome ... Correction of Down syndrome and Edwards syndrome aneuploidies in ... DNA Research . Elixirgen plans to develop this technology ...
(Date:8/31/2015)... and SHANGHAI , ... privately-held biopharmaceutical company developing next-generation antibiotics, today announced ... clinical study for its lead drug candidate MRX-I. ... treat drug-resistant bacteria such as MRSA and VRE, ... better tolerated therapeutic option than currently available oxazolidinone ...
(Date:8/31/2015)... (PRWEB) , ... August 31, 2015 , ... ... as a high priority in the drug development approval process. Thus, innovator companies ... This year, Regis Technologies, Inc., a Chicago-based CMO, has been hosting multiple educational ...
(Date:8/30/2015)... CHERTSEY , England , August ... Kampagne beendet die 51-jährige Wartezeit   einer Frau   ... und Frauen im Alter von 7-90   ... Programm soll 1200 Frauen behandeln und ...     , Astellas gab heute ...
Breaking Biology Technology:New Down syndrome therapy discovered 2MicuRX Reports Positive Top-Line Results In Phase 2 Clinical Trial For Novel Antibiotic MRX-I In Complicated Skin And Soft Tissue Infections 2Regis Shares Expert Advice on Impurities in Drug Development 2Regis Shares Expert Advice on Impurities in Drug Development 3Über 550 Frauen, deren Leben durch "Action on Fistula" transformiert wurde 2Über 550 Frauen, deren Leben durch "Action on Fistula" transformiert wurde 3Über 550 Frauen, deren Leben durch "Action on Fistula" transformiert wurde 4Über 550 Frauen, deren Leben durch "Action on Fistula" transformiert wurde 5
... The state will give $250,000 in tax credits to C3 ... an 18,000-square-foot facility in Appleton's Northeast Business Park. , ,According ... create 28 jobs in the area. The credits are part ... aside $5 million in tax credits for each of eight ...
... up with UW-Eau Claire, UW-Stout and several other tech ... in the state. , ,Nanotechnology deals with particles one ... physical properties of matter begin to give way to ... understand. The potential of arranging nanoparticles, which scientists long ...
... the University of Wisconsin-Madison are taking another look at some ... That's what scientists call the way sounds change as you ... example, a jackhammer or a siren will sound higher pitched ... ,But there's an inverse Doppler effect, too, predicted ...
Cached Biology Technology:Chippewa Valley Technical College helps pioneer nanotech program, incubator 2Chippewa Valley Technical College helps pioneer nanotech program, incubator 3Chippewa Valley Technical College helps pioneer nanotech program, incubator 4
HiTrap NHS-activated HP, 1 x 5 ml. Category: Chromatography Systems & Accessories, Systems....
Human OSCAR MAb (Clone 259501)...
Human/Mouse G9a/EHMT2 MAb (Clone A8620A) Keywords: Eu-HMTase2...
Human M-CSF...
Biology Products: