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

s of vesicles

Biller's metagenomic analysis of the vesicles taken from the seawater revealed DNA from a diverse array of bacteria, suggesting that vesicle production is common to many marine microbes. The researchers estimate the global production of vesicles by Prochlorococcus alone at a billion billion billion per day representing a notable addition of carbon to the scarce nutrient pool of the open seas.

Lab experiments showed that the vesicles are stable, lasting two weeks or more, and that the organic carbon they contain provides enough nutrients to support the growth of nonphotosynthetic bacteria.

Given the dearth of nutrients in the open ocean, the daily release by an organism of a packet one-sixth the size of its own body is puzzling, Chisholm says. Prochlorococcus has lost the ability to neutralize certain chemicals and depends on nonphotosynthetic bacteria to break down chemicals that would otherwise act as toxins. It's possible the vesicle "snack packets" help make this relationship mutually beneficial.

"Prochlorococcus is the smallest genome that can make organic carbon from sunlight and carbon dioxide and it's packaging this carbon and releasing it into the seawater around it," says Chisholm, the Lee and Geraldine Martin Professor of Environmental Studies in MIT's Department of Civil and Environmental Engineering and Department of Biology, who is lead investigator of the study. "There must be an evolutionary advantage to doing this. Our challenge is to figure out what it is."

Because the vesicles also contain DNA and RNA, the researchers surmise they could play a role in horizontal gene transfer, a means for developing genetic diversity and sharing ecologically useful genes among the Prochlorococcus metapopulation.

Marine decoy

But perhaps the most unusual potential role of the vesicles is as a decoy for predators: Electron microscopy shows phages (vi
'/>"/>

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:3/19/2015)... OXFORD, Conn. , March 19, 2015  NXT-ID, Inc. ... biometric authentication company focused on the growing mobile commerce market, ... featured in a news clip that aired this week on ... http://www.myfoxdc.com/ ) . In a segment "The Next ... smart wallet ,a new way to pay, and ,a really ...
(Date:3/17/2015)...  MecklerMedia Corporation (OTCQX: MECK) announced its ... ever held in New York City ... 2015 at the Javits Convention Center. ... Acorn Product Development; Axis NJ; c-Link Systems; CoroWare; ... NewBotic Corporation; Neya Systems LLC; Reliabotics; RoboKind; RocketFarm ...
(Date:3/12/2015)... Beta Systems today announced ... management (IAM) solution for a fixed price and ... new IAM package, customers benefit from the 30 ... IAM implementations across different industries. The new fixed-price ... any necessary services and consulting. It spans the ...
Breaking Biology News(10 mins):NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 2NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 3MecklerMedia's RoboUniverse New York Announces Sponsors and Exhibitors, May 11-13, 2015 2Beta Systems Fast Forward IAM Available Now: a Standardized IAM Package at a Fixed Price 2
... interdisciplinary perspective. Presenters at the National Academy of Sciences, ... ways to identify, encourage, and support advances in climate ... other fields. In addition, U.S. Secretary ... Sackler Lecture beginning at 6 p.m. on March 31 ...
... Providing further understanding of the link between low birth ... deprived newborns are "programmed" to eat more because they ... that controls food intake, according to an article published ... The study by a team of researchers at Los ...
... of people commit suicide worldwide each year, researchers and ... person,s likelihood of thinking about or trying to commit ... Hospital del Mar Research Institute (IMIM) has participated, has ... suicides. "It is of key importance to identify suicidal ...
Cached Biology News:Study provides explanation for connection between low birth weight and obesity later in life 2First international index developed to predict suicidal behavior 2
(Date:3/30/2015)... 30, 2015 /CNW/ - A new national Labour Market ... and demographic profiles of new graduates entering the biotech ... Building Careers for New Grads in Biotech," is sponsored ... Pharmaceutical Companies (Rx&D) and features data collected from new ... subsidy program from 2013 to 2015. Among ...
(Date:3/30/2015)... PARK, N.J. , March 30, 2015 /PRNewswire/ ... (PAMORA) under development by Shionogi & Co., Ltd., ... phase III study (COMPOSE I) for the treatment ... chronic non-cancer pain receiving opioid therapy. Study results ... daily) statistically significantly improved the frequency of spontaneous ...
(Date:3/29/2015)... IRVING, Texas , March 29, 2015 ... the presentation of important study data showing ... cells in 1,599 gynecologic cancer samples. Using ... tumor profiling service, researchers identified expression of ... gynecologic cancers independent of histology while its ...
(Date:3/27/2015)... LANSING, Mich. , March 27, 2015  Neogen ... Properties, LLC, has adopted a prearranged trading plan in ... James Herbert , Chairman and CEO of Neogen Corporation, ... shares of Neogen Corporation common stock. Herbert ... the disclosure was appropriate. The filing is only for ...
Breaking Biology Technology:New Report on Graduates in Canadian Biotech Industry Sheds Light on Hiring Practices 2New Report on Graduates in Canadian Biotech Industry Sheds Light on Hiring Practices 3New Report on Graduates in Canadian Biotech Industry Sheds Light on Hiring Practices 4Shionogi & Co., Ltd. Announces That Naldemedine Meets Primary Endpoint In A Phase 3 Study For The Treatment Of Opioid-Induced Constipation 2Shionogi & Co., Ltd. Announces That Naldemedine Meets Primary Endpoint In A Phase 3 Study For The Treatment Of Opioid-Induced Constipation 3Caris Life Sciences' Multiplatform Tumor Profiling Technology Identifies Expression of PD-1 and PD-L1 in Gynecologic Malignancies 2Caris Life Sciences' Multiplatform Tumor Profiling Technology Identifies Expression of PD-1 and PD-L1 in Gynecologic Malignancies 3Caris Life Sciences' Multiplatform Tumor Profiling Technology Identifies Expression of PD-1 and PD-L1 in Gynecologic Malignancies 4Neogen CEO adopts 10b5-1 Trading Plan 2
... and CLAREMONT, Calif., Jan. 18 /Xinhua-PRNewswire-FirstCall/ --,Kiwa ... KWBT),announced that it has held a meeting ... building the Company,s Distribution Network. Attendees included,representatives ... and provincial large volume agricultural products dealers., ...
... Corporation,(Nasdaq: ACEL ) today announced that it ... Scientific Protein Laboratories LLC (SPL) for the,commercial production ... is currently being evaluated as a treatment for,unresectable ... trial., "SPL has been involved in the ...
... Scientific studies on climate change, energy and alternative ... 145 million processing hours on supercomputers at Oak Ridge ... Novel Computational Impact on Theory and Experiment (INCITE) program. ... and government research facilities receive access to computing power ...
Cached Biology Technology:Kiwa Bio-Tech Products Group Holds Meetings to Build Distribution Network 2Kiwa Bio-Tech Products Group Holds Meetings to Build Distribution Network 3Alfacell Announces ONCONASE(R) Purchase and Supply Agreement with Scientific Protein Laboratories 2Alfacell Announces ONCONASE(R) Purchase and Supply Agreement with Scientific Protein Laboratories 3Oak Ridge leads DOE INCITE effort in 2008 2Oak Ridge leads DOE INCITE effort in 2008 3Oak Ridge leads DOE INCITE effort in 2008 4
FGF Receptor 1 Antibody...
Rabbit polyclonal to Kallikrein 1 ( Abpromise for all tested applications). Antigen: Full length native kallikrein from tissue (Human) Entrez Gene ID: 3816 Swiss Protein ID: P06870...
EDG-1CT (endothelial cell differentiation gene-1, C terminal)...
Mouse monoclonal [1-N-14] to Adenovirus Type 7 hexon C11 Immunogen: Purified Adenovirus type 7 Specificity: This antibody is specific for Adenovirus type 7 hexon C11....
Biology Products: