Navigation Links
Scientists confirm existence of vitamin 'deserts' in the ocean
Date:7/23/2012

Using a newly developed analytical technique, a team led by scientists at USC was the first to identify long-hypothesized vitamin B deficient zones in the ocean.

"This is another twist to what limits life in the ocean," said Sergio Saudo-Wilhelmy, professor of biological and earth sciences at the USC Dornsife College of Letters, Arts and Sciences and lead author on a paper about the vitamin-depleted zones that will appear in Proceedings of the National Academy of Sciences on July 23.

B vitamins are organic compounds dissolved in the ocean and are important for living cells to function. Zones poor in B vitamins may inhibit the growth and proliferation of phytoplankton, which are tiny microorganisms at the base of the food chain in the ocean.

"An important result of our study is that the concentrations of the five major B vitamins vary independently and appear to have different sources and sink," said co-author David Karl, professor of oceanography and director of the Center for Microbial Oceanography: Research and Education (C-MORE) at the University of Hawaii. "This could lead to complex interactions among populations of microbes, from symbiosis to intense competition."

In addition to being food for the tiniest sea animals, phytoplankton also absorb carbon dioxide from the atmosphere, an important process when levels of atmospheric carbon dioxide from the burning of fossil fuels are the highest they have been in half a million years.

The team developed a new method of concentrating water samples and then analyzing them using a mass spectrometer, which identifies and measures the quantity of an unknown compound in a given sample by first ionizing and breaking-up the compound and then quantifying the fragmented ions or molecules produced. (Mass spectrometry is also used to identify steroid use in athletes' urine samples.)

In their PNAS article, the researchers are sharing their technique with their c
'/>"/>

Contact: Robert Perkins
perkinsr@usc.edu
213-740-9226
University of Southern California
Source:Eurekalert

Page: 1 2

Related biology news :

1. Stanford scientists develop gene therapy approach to grow blood vessels in ischemic limbs
2. Queens scientists seek vaccine for Pseudomonas infection
3. Scientists produce eye structures from human blood-derived stem cells
4. American Society of Plant Biologists honors early career women scientists
5. Brandeis scientists win prestigious prize for circadian rhythms research
6. Scientists discover new method of proton transfer
7. Salk scientists open new window into how cancers override cellular growth controls
8. WileyChina.com - Now Featuring Bespoke Pages for China’s Life Scientists
9. Scientists win $2 million to study new pathway in development and maintenance of lymphoma
10. UGA scientists reveal genetic mutation depicted in van Goghs sunflower paintings
11. Genetic mutation depicted in van Goghs sunflower paintings revealed by scientists
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2015)... La 10e Conférence internationale sur la ... le BGI du 22 au 25 octobre 2015 ... La conférence célèbre son 10e anniversaire ... est devenue l,une des réunions annuelles mondiales les ... c,est aussi la plus dynamique, la plus enthousiaste ...
(Date:7/31/2015)... Jul. 31, 2015 NXT-ID, Inc. (NASDAQ: NXTD ... focused on the growing mobile commerce market and creator ... filed provisional patent 62/198989 for ELECTRONIC CRYPTO-CURRENCY ... a method to advance crypto-currencies such as Bitcoin into ... common, uniform way to manage all payments.  ...
(Date:7/27/2015)... JOSE, Calif. , July 27, 2015 /PRNewswire/ ... developer of human interface solutions, today announced that ... ® touchscreen solution for its stylish smartwatch. ... for its proven reliability, low power and highly ... a wet finger. Huawei designers also required a ...
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 3NXT-ID Patents Electronic Crypto-Currency Management Technology 2NXT-ID Patents Electronic Crypto-Currency Management Technology 3NXT-ID Patents Electronic Crypto-Currency Management Technology 4Synaptics Touchscreen Solution Powers New Huawei Watch 2Synaptics Touchscreen Solution Powers New Huawei Watch 3
... announced today its involvement in an expanded access ... treatment for phenylketonuria (PKU), a rare genetic metabolic ... children, can result in severe mental retardation. Currently, ... access program at Nationwide Childrens. Under an ...
... Society and other institutions declare that improvements in ... double the number of tigers currently existing in the ... in the most recent edition of the journal Biological ... the Indian subcontinentcomprising India, Bangladesh, Bhutan, and Nepal. It ...
... Boulder, CO, USA - Topics include: continental deformation ... Mars; correlation of 200-million-year-old rocks between Britain and ... mass extinctions; rock weathering in Canada,s Mackenzie River ... how stable continents split in the absence of ...
Cached Biology News:Nationwide Children's Hospital involved in expanded access program for treatment of PKU 2WCS study finds potential to double tiger numbers in South Asia 2November GEOLOGY and GSA TODAY Media Highlights 2November GEOLOGY and GSA TODAY Media Highlights 3November GEOLOGY and GSA TODAY Media Highlights 4November GEOLOGY and GSA TODAY Media Highlights 5November GEOLOGY and GSA TODAY Media Highlights 6November GEOLOGY and GSA TODAY Media Highlights 7November GEOLOGY and GSA TODAY Media Highlights 8November GEOLOGY and GSA TODAY Media Highlights 9November GEOLOGY and GSA TODAY Media Highlights 10
(Date:7/31/2015)... ... July 31, 2015 , ... Global ... and premium industry insights on the global resorcinol industry. The report highlights the ... of vivid market scenarios and analysis of primary and secondary inputs from the ...
(Date:7/31/2015)... , ... July 31, 2015 , ... ... the detection and quantification of partially hydrolyzed gluten in foods, has been accepted ... adopted the method “Partially Hydrolyzed Gluten in Fermented Cereal-Based Products by R5 Competitive ...
(Date:7/30/2015)... , July 30, 2015 AACC welcomed ... the 2015 AACC Annual Meeting & Clinical Lab ... July 26–30. The meeting showcased revolutionary advancements in ... ability of healthcare providers to diagnose patients quickly ... medical treatment. As of Wednesday, ...
(Date:7/30/2015)... France and Dallas, TX, USA (PRWEB) , ... ... ... of innovative nano and microsystems, has appointed Francois Vieillard as Sales & Marketing ... Marketing at executive positions, Francois Vieillard will be responsible for reinforcing Tronics’ business ...
Breaking Biology Technology:Resorcinol Market to Grow at 6% CAGR to 2019 Says New Research Report at ReportsnReports.com 2Resorcinol Market to Grow at 6% CAGR to 2019 Says New Research Report at ReportsnReports.com 3Resorcinol Market to Grow at 6% CAGR to 2019 Says New Research Report at ReportsnReports.com 4RIDASCREEN® Competitve Gliadin Receives AOAC Official First Action Status 2Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 2Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 3Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 4Tronics appoints Francois Vieillard as Sales and Marketing Director 2
... TORONTO, Sept. 23 /PRNewswire-FirstCall/ - Spectral Diagnostics Inc.,(TSX: ... key terms with Toray,Industries Inc. of Japan to ... U.S. for Toraymyxin(TM), a therapeutic for the treatment ... the terms of the,agreement, the Company will seek ...
... InspireMD, Ltd.,announced today the enrollment of the first ... in acute myocardial infarction. The GUARD Study,(MGuard(TM) in ... safety and efficacy of MGuard(TM) in patients suffering ... were implanted,successfully with the MGuard(TM) Coronary Stent, in ...
... on Nano-Bio-Info-Cogno (NBIC) technologies and their interactions will ... Museum in Mountain View, California. The event ... participants to customize the event in a highly ... forecaster with over two decades experience exploring long-term ...
Cached Biology Technology:Spectral to bring anti-sepsis therapy to the U.S. market 2Spectral to bring anti-sepsis therapy to the U.S. market 3InspireMD Announces Enrollment of First Patients in the MGuard(TM) Acute Myocardial Infarction Clinical Trial Data Will be Used to Confirm Initial Positive Results 2InspireMD Announces Enrollment of First Patients in the MGuard(TM) Acute Myocardial Infarction Clinical Trial Data Will be Used to Confirm Initial Positive Results 3Nano-Bio-Info-Cogno Revolutions to be Explored at Convergence08 Unconference - Forecaster Paul Saffo to Keynote 2Nano-Bio-Info-Cogno Revolutions to be Explored at Convergence08 Unconference - Forecaster Paul Saffo to Keynote 3
Experion HighSens chips are the microfluidic chips used to perform high-sensitivity RNA analysis (picogram levels) with the Experion automated electrophoresis system. Each chip has the capacity to ru...
... Second Mitochondria Derived Activator of Caspase/DIABLO ... HEPES, pH 7.5 AVOID FREEZE/THAW CYCLES. Amino acid ... a carboxy terminal His•Tag ® sequence was ... . Smac/DIABLO is released along with cytochrome ...
... polyclonal to Decorin ( Abpromise ... Antigen: Synthetic peptide: IGPEVPDDRDFEPS ... acids 6-19 of Human Decorin (fragment ... proteoglycan II). Entrez ...
GLP expression profiling service on the Affymetrix platform. Starting material can be blood, tissue or RNA. 5 day turnaround. Standard and custom post analyses of microarray data available....
Biology Products: