Navigation Links
Surprises from the ocean: Marine plankton and ocean pH
Date:6/21/2011

The world's oceans support vast populations of single-celled organisms (phytoplankton) that are responsible, through photosynthesis, for removing about half of the carbon dioxide that is produced by burning fossil fuels as much as the rainforests and all other terrestrial systems combined. One group of phytoplankton, known as the coccolithophores, are known for their remarkable ability to build chalk (calcium carbonate) scales inside their cells, which are secreted to form a protective armour on the cell surface. On a global scale this calcification process accounts for a very significant flux of carbon from the surface ocean, and hence coccolithophores are an important component of the global carbon cycle, as cells die and the calcium carbonate sinks to form ocean sediments.

In an article published in PLoS Biology on 21st June, a team of scientists from the Marine Biological Association and Plymouth Marine Laboratory in the UK and the University of North Carolina Wilmington, USA report the unexpected finding that coccolithophores use a similar mechanism to the one previously characterised in vertebrate cells, to facilitate calcification. They found that this process may be directly affected by the current increasing levels of dissolved carbon dioxide in the oceans.

The armour scales of coccolithophores are formed by transporting calcium and bicarbonate into the cell where they combine to form calcium carbonate. Calcification is a strongly pH-dependent process and is likely to be affected by the increase in carbon dioxide levels that are making the ocean increasingly acidic.

The researchers used a combination of single cell physiology and molecular biology to identify the molecular machinery that underlies calcification. A by-product of the calcification reaction is the formation of protons (H+) inside the cell. "These H+ ions can potentially accumulate in the cell causing it to become acidic - a process know
'/>"/>

Contact: Bryan Ghosh
bghosh@plos.org
44-122-344-2837
Public Library of Science
Source:Eurekalert

Page: 1 2

Related biology news :

1. Seeing the brain hear reveals surprises about how sound is processed
2. Natural selection for moderate testosterone surprises scientists
3. Low elevations hold climate surprises
4. Genome of barley disease reveals surprises
5. Icy meltwater pooling in Arctic Ocean: A wild card in climate change scenarios
6. Effects of anthropogenic sound on marine mammals -- a research strategy
7. The Marine Mammal Center begins new leptospirosis study in California
8. Scientists announce major progress towards historic Census of Marine Life in 2010
9. Marine invasive species advance 50km per decade, World Conference on Marine Biodiversity told
10. Marine invasive species advance 50 km per decade, World Conference on Marine Biodiversity told
11. Snowy owl -- a marine species?
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/21/2014)... digesting itself resulting in severe abdominal pain, vomiting and ... patients are diagnosed with the disease resulting in 1000 ... restricted to intravenous fluid and nutritional support. , ... who led the research, said "The major causes of ... excessive alcohol intake combined with a high fat diet. ...
(Date:8/20/2014)... study of 158 pregnant teenagers in Rochester, NY, nearly ... consumption of ice, cornstarch, vacuum dust, baby powder and ... study. , Moreover, such teens had significantly lower iron ... nonfood substances. , Pregnant teens, regardless of pica, are ... to iron deficiency and anemia. Low iron in pregnant ...
(Date:8/20/2014)... finds life can persist in a cold, dark world. ... team that examined waters and sediments from a shallow ... the extreme environment supports microbial ecosystems. , The ... colleagues has implications for life in other extreme environments, ... findings are published in the current edition of the ...
Breaking Biology News(10 mins):Insulin offers new hope for the treatment of acute pancreatitis 2Pica in pregnant teens linked to low iron 2University of Tennessee research uncovers subglacial life beneath Antarctic ice sheet 2
... taking advantage of improvements in satellite sensor capabilities offer ... from East Asian forest fires, urban exhaust, and industrial ... China, the worlds most populated country, has experienced ... and considerable expansion in automobile use over the last ...
... their brief dominance in a primitive North America, deserve ... New evidence says it took thousands of years for ... six scientists, including Jon M. Erlandson of the University ... the National Academy of Sciences (online, March 13) after ...
... 17, 2008) Take a deers body, attach a camels head ... the odd-ball antelope with the enormous schnoz that lives on ... endangered as they are strange-looking due to over-hunting. Now, according ... in jeopardy as well. ...
Cached Biology News:NASA satellite measures pollution from east Asia to North America 2NASA satellite measures pollution from east Asia to North America 3Clovis-age overkill didn't take out California's flightless sea duck 2Asia's odd-ball antelope faces migration crisis 2
(Date:8/21/2014)... His Majesty Willem-Alexander, King of the Netherlands to ... Majesty Willem-Alexander, King of the Netherlands, has announced that ... Advanced Biofuels’ Project LIBERTY cellulosic ethanol plant in Emmetsburg, ... take part in the Grand Opening Ceremony to perform ... and tour the plant. POET-DSM is a joint venture ...
(Date:8/21/2014)... BURLINGTON, Mass. , Aug. 21, 2014 /PRNewswire/ ... in Brazil and ... restrictions. The uptake of several newly approved agents, ... for this indication and the launch of emerging ... asthma markets. In particular, the emerging IL-5 inhibitors ...
(Date:8/21/2014)... Aug. 21, 2014  China Cord Blood Corporation (NYSE: ... to release financial results for the first quarter of ... market close in the US.  The ... ET on Friday, August 29, 2014 to discuss its ... Company,s recent developments, followed by a question and answer ...
(Date:8/21/2014)... Ontotext S4 , The Self Service Semantic ... Now the same enterprise hardened text mining, Linked Data ... is available to start-ups and mid-size businesses at a ... do not have resources to evaluate and prototype enterprise ... there is no need for on premise hardware provisioning ...
Breaking Biology Technology:His Majesty Willem-Alexander, King of the Netherlands, to Attend Project LIBERTY opening 2His Majesty Willem-Alexander, King of the Netherlands, to Attend Project LIBERTY opening 3Asthma Agents Currently Face a Suboptimal Coverage Environment in Brazil and Mexico, and as the Treatment Armamentarium Expands, Competitiveness Will Further Intensify 2Asthma Agents Currently Face a Suboptimal Coverage Environment in Brazil and Mexico, and as the Treatment Armamentarium Expands, Competitiveness Will Further Intensify 3China Cord Blood Corporation to Report First Quarter of Fiscal 2015 Financial Results 2Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 2Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 3Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 4
... , ,Your business card reads project manager. You just ... training, regularly participate in seminars and sleep with scholarly ... desk is almost worn out; yellow sticky notes mark ... control section by heart! Youd rather have Gantt charts ...
... Entrepreneurs Conference got off to a dynamic start on Tuesday ... hundred entrepreneurs and industry representatives to a crash course in ... camp was designed serve both veteran and novice business owners, ... of seasoned industrialists. , ,Our purpose is to focus on ...
... emerged as a new leading security solution that combines ... holistic and efficient approach to security. It is a ... , ,Most security imperatives from an IT perspective have ... host of similar components of network security. But more ...
Cached Biology Technology:Part 5 Project Performance Get on the path to continuous improvement 2Part 5 Project Performance Get on the path to continuous improvement 3Part 5 Project Performance Get on the path to continuous improvement 4Entrepreneurs get crash course for building a successful company 2Entrepreneurs get crash course for building a successful company 3IP Surveillance - Another Piece of the Converged Network 2IP Surveillance - Another Piece of the Converged Network 3
... Pro-mix l-[35S]in vitro cell labeling ... *Aqueous solution stabilized with ... mM pyridine 3,4-dicarboxylic acid. *Amino ... protein labeling containing l-[35S]Methionine and ...
... Assay, 96 wells. ELISA.Specific for total ... MMP-3. No cross-reactivity with MMP-1, -2, -9. ... use with cell culture supernatant, serum, plasma ... to -30 C. Category: Drug Screening ...
... Designed for serial ... protein fractions including cytosol/particulate/cytoskeleton/nuclear ... All these fractions can ... downstream assays such as ...
Self Closing Forceps...
Biology Products: