Navigation Links
Iron critical to ocean productivity, carbon uptake

A new study has found that large segments of the Pacific Ocean lack sufficient iron to trigger healthy phytoplankton growth and the absence of the mineral stresses these microscopic ocean plants, triggering them to produce additional pigments that make ocean productivity appear more robust than it really is.

As a result, past interpretations of satellite chlorophyll data may be inaccurate, the researchers say, and the tropical Pacific Ocean may photosynthesize 1-2 billion tons less atmospheric carbon dioxide than was previously thought. Global ocean carbon uptake is estimated at 50 billion tons, so the reduction in the estimate of the uptake is significant ?about 2 to 4 percent.

Results of the study were published this week in the journal Nature.

When stressed by a lack of iron, phytoplankton create additional pigments that fluoresce, or light up, unlike normal pigments, according to lead author Michael J. Behrenfeld, a research scientist in Oregon State University's Department of Botany and Plant Pathology. Unfortunately, he added, satellite imagery could not readily distinguish that difference.

"It's really a fascinating process," Behrenfeld said. "When phytoplankton species make these extra pigments, they don't use them right away ?they bank them. Then when they get an infusion of iron, they just take off. They don't have to wait to begin dividing and growing. But that green color wasn't an indication of health, it was an indication of stress from a lack of iron."

The study is also important because it looked at the availability of iron throughout the tropical Pacific Ocean instead of small portions of it. Behrenfeld and his colleagues looked at 12 years of fluorescence data taken along 36,000 miles of ship tracks throughout the tropical Pacific. They now have a "fluorescence fingerprint" of which parts of the ocean are iron-stressed, as well as which parts suffer from lack of nitrogen ?another key element to ocean productiv
'"/>

Source:Oregon State University


Page: 1 2 3

Related biology news :

1. Wisconsin scientists grow critical nerve cells
2. Plant hemoglobins: Oxygen handlers critical for nitrogen fixation
3. White blood cell waste disposal system plays critical regulatory role
4. Scripps research scientists solve structure of a critical innate immune system protein
5. CO2 sensing proves critical for fungal pathogens to adapt to life in air and human hosts
6. Scientists map one of biologys critical light-sensing structures
7. Software might revolutionize glucose monitoring in critically ill patients
8. UW scientists unravel critical genetic puzzle for flu virus replication
9. Absence of critical protein linked to infertility
10. The critical importance of mangroves to ocean life
11. Researches discover gene critical for protection against septic-shock-induced death
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Iron critical ocean productivity carbon uptake

(Date:7/31/2015)... , Chine, 31 juillet 2015 La ... www.icg-10.org ) sera organisée par le BGI du ... Shenzhen en Chine. La ... son inauguration en 2006, l,ICG est devenue l,une ... le domaine des « omiques » et c,est aussi la ...
(Date:7/31/2015)... , 31 de julio de 2015 La ... ) se celebrará por medio de BGI del 22 al 25 ... . Este año, la conferencia celebra su ... se ha convertido en una de las reuniones anuales más ... una de las reuniones más dinámicas, entusiastas y mejores a ...
(Date:7/31/2015)... 31. Juli 2015 Die 10. internationale Konferenz zu ... veranstaltet und findet vom 22. bis 25. Oktober ... statt. Die Konferenz feiert in ... 2006 ist die ICG weltweit zu einem der ... ist eines der dynamischsten, enthusiastischsten und angenehmsten wissenschaftlichen ...
Breaking Biology News(10 mins):La 10e International Conference on Genomics (ICG-10) doit s'ouvrir en octobre 2La 10e International Conference on Genomics (ICG-10) doit s'ouvrir en octobre 3La 10th International Conference on Genomics (ICG-10) se llevará a cabo en octubre 2La 10th International Conference on Genomics (ICG-10) se llevará a cabo en octubre 3Die 10. internationale Konferenz zu Genomik (ICG-10) beginnt im Oktober 2Die 10. internationale Konferenz zu Genomik (ICG-10) beginnt im Oktober 3
... BIO-key International, Inc. (OTC Bulletin Board: BKYI), a leader in ... ended March 31, 2010 . For clarity and consistency, the data ... Biometrics Division for such period.  The Company completed the sale of its ... , , ...
... have discovered that cheese can help preserve and enhance ... a carrier for probiotic bacteria. The research, published in ... daily consumption of probiotic cheese helps to tackle age-related ... the proportion of aged individuals in modern society makes ...
... 22q.11 deletion syndrome have identified key proteins that act ... essential to life; in animal studies, embryos without the ... of gestation. Although the findings do not ... shed light on the biological events that give rise ...
Cached Biology News:BIO-key(R) Reports First Quarter 2010 Financial Results 2BIO-key(R) Reports First Quarter 2010 Financial Results 3BIO-key(R) Reports First Quarter 2010 Financial Results 4BIO-key(R) Reports First Quarter 2010 Financial Results 5Cheese found to improve the immune response of the elderly 2Study finds protein that plays key role in early embryonic development 2
(Date:7/29/2015)... 29, 2015  AsureQuality and Ubiquitome have agreed ... applications in food and primary production sectors. The ... PCR device, the Freedom4. AsureQuality provides ... the supermarket shelf for producers, processors and Competent ... animal disease control and pest management and surveillance ...
(Date:7/29/2015)... 2015  AmnioChor Inc., an early stage biotech startup ... to announce that the Musculoskeletal Transplant Foundation of ... in their seed round of development of the proprietary ... AmnioChor,s technology allows cryopreservation of the ... cells living within those tissues. Amnion is a well-established ...
(Date:7/29/2015)... (PRWEB) , ... July 29, 2015 , ... The third ... of combination products , in particular, drug/device combinations. The current system received a ... the Initiative for Patient Centered Innovation (iPCI) of Fairleigh Dickinson University’s ( ...
(Date:7/29/2015)... ... July 29, 2015 , ... CSSi LifeSciences™ formalized ... specializing in Clinical Trial Management. CSSi LifeSciences is specialized in strategic, marketing, and ... PRC Clinical is focused on Clinical Trial Management, Clinical Site Monitoring, and Clinical ...
Breaking Biology Technology:AsureQuality and Ubiquitome Partner on Applications for Mobile Molecular Food Safety Testing 2The Musculoskeletal Transplant Foundation Agrees to Invest in AmnioChor 2Third Medical Innovation Impact Index Issued by Fairleigh Dickinson University’s Initiative for Patient-Centered Innovation (iPCI) 2Third Medical Innovation Impact Index Issued by Fairleigh Dickinson University’s Initiative for Patient-Centered Innovation (iPCI) 3CSSi LifeSciences And PRC Clinical Join Forces To Offer Extended Clinical Trial Services 2CSSi LifeSciences And PRC Clinical Join Forces To Offer Extended Clinical Trial Services 3
... 14 TorreyPines Therapeutics,Inc. (Nasdaq: TPTX ) today ... 2007. For the three-month period, the Company posted,revenue of ... Cash and cash,equivalents totaled $39.7 million at September 30, ... three priority product,candidates and most notably, after the quarter ...
... MELBOURNE, Australia, Nov. 14 Swiss experts have,abandoned ... (TST) favouring the,use of interferon-a release assays such ... (TB) infection prior to initiating,biological treatments (such as ... of the Swiss Medical Weekly, experts,advocate the use ...
... Calif., Nov. 13 AMDL, Inc. (Amex:,ADL) reported today ... Securities and,Exchange Commission indicating that its Form 10-QSB for ... filed by November 14, 2007. However,AMDL expects to file ... time,allotted by the Rules. Gary L. Dreher, President, stated: ...
Cached Biology Technology:TorreyPines Therapeutics Reports Third Quarter 2007 Results 2TorreyPines Therapeutics Reports Third Quarter 2007 Results 3TorreyPines Therapeutics Reports Third Quarter 2007 Results 4TorreyPines Therapeutics Reports Third Quarter 2007 Results 5TorreyPines Therapeutics Reports Third Quarter 2007 Results 6Swiss Experts Recommend QuantiFERON(R)-TB Gold for Tuberculosis Infection Screening Prior to Initiating anti-TNF-a Therapy 2Swiss Experts Recommend QuantiFERON(R)-TB Gold for Tuberculosis Infection Screening Prior to Initiating anti-TNF-a Therapy 3AMDL Announces Filing of Extension on Third Quarter 2007 Form 10-QSB 2
Mouse monoclonal antibody raised against a partial recombinant SCARB2. NCBI Entrez Gene ID = SCARB2...
Mouse monoclonal antibody raised against a partial recombinant FAAH. NCBI Entrez Gene ID = FAAH...
Alpha-2-antiplasmin precursor (Alpha-2-plasmin inhibitor) (Alpha-2-PI) (Alpha-2-AP). [Source:Uniprot/SWISSPROT;Acc:P08697] Antigen: Recombinant Protein Epitope Signature Tag (PrEST)....
Mouse polyclonal antibody raised against a partial recombinant CSRP3. NCBI Entrez Gene ID = 8048...
Biology Products: