Navigation Links
Algal antifreeze makes inroads into ice
Date:3/3/2011

Sea-ice algae the important first rung of the food web each spring in places like the Arctic Ocean can engineer ice to its advantage, according to the first published findings about this ability.

The same gel-like mucus secreted by sea-ice algae as a kind of antifreeze against temperatures well below minus 10 C is also allowing algae to sculpt microscopic channels and pores in ice that are hospitable to itself and other microorganisms.

Altering ice to their benefit should help sea-ice algae adapt to a warming world, which is good news for hungry fish and shellfish farther up the food web, but what it means for the integrity of the ice itself raises unanswered questions according to Jody Deming, University of Washington professor of oceanography and co-author of a paper appearing in the March 1 Proceedings of the National Academy of Sciences.

Ice riddled with more channels and pores will be weaker, yet such openings plugged with algal secretions actually hold more salty water and thus may slow melting in the spring and summer, she says. Scientists have yet to determine if the two processes cancel each other or if one will dominate, say Deming and co-authors Christopher Krembs, Washington State Department of Ecology, and Hajo Eicken, University of Alaska Fairbanks.

Sea ice is home to microscopic plants and animals, bacteria and viruses that stay alive in brine-filled openings in the ice. The gel-like mucus secreted by ice algae and other microorganisms, called extracellular polysaccharide substances, consists of complex sugar compounds. The mucus depresses the freezing point and keeps pore spaces in ice filled with at least some liquid.

The researchers focused on the algae that dominate the sea-ice biota across the Arctic each spring and in particular the variety Melosira arctica. Individually, Melosira arctica are about 50 micrometers long, or the width of a strand of human hair. Joined togethe
'/>"/>

Contact: Sandra Hines
shines@uw.edu
206-543-2580
University of Washington
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Algal biomonitor
2. International experts weigh-in on harmful algal blooms
3. Hot spot for toxic harmful algal blooms discovered off Washington coast
4. Regional partnership to develop algal biofuels gets backing of San Diego leaders
5. A thirst for blood sparks toxic algal blooms
6. Los Alamos technology strikes a chord with algal biofuels
7. Novel bacterial strains clear algal toxins from drinking water
8. New project to forecast toxic algal blooms on Pacific Northwest beaches
9. NOAA awards funds to improve toxic algal bloom predictions in the Western Gulf of Mexico
10. Is iron from soil a factor in algal blooms?
11. Ben-Gurion U researchers isolate microalgal strain that could reduce cholesterol
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Algal antifreeze makes inroads into ice
(Date:7/10/2014)... partners predict that western Lake Erie will have a ... the 2014 bloom season in late summer. However, the ... year,s intense bloom, and considerably less than the record-setting ... lake,s western basin and are classified by an estimate ... , Harmful algal blooms (HABs) were common in ...
(Date:7/10/2014)... Clarksburg, MDBrightFocus Foundation, a nonprofit organization funding cutting-edge, ... diseases of glaucoma and macular degeneration, today announced ... to 55 scientists in 19 U.S. states, the ... http://www.brightfocus.org/Grants2014 . , With these latest ... million in research funding in 2014. , The ...
(Date:7/10/2014)... collected by the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard ... spot, which appears as a red mark, is an ... recognized temperatures higher than background. When accompanied by plumes ... are diagnostic for fire. , This area of ... from the fires, although the smoke released by any ...
Breaking Biology News(10 mins):NOAA, partners predict significant harmful algal bloom in western Lake Erie this summer 2NOAA, partners predict significant harmful algal bloom in western Lake Erie this summer 3BrightFocus Foundation announces 55 new grantees in Alzheimer's and vision research 2BrightFocus Foundation announces 55 new grantees in Alzheimer's and vision research 3
... University of Leicester and part-funded by The Leverhulme Trust aims ... By bringing together an artist and a neuroscientist, both ... perception. In the process of the research, both artist and ... the eye of the beholder. Rodrigo Quian Quiroga, Neuroscientist ...
... opinion that inflammation in adipose tissue may cause insulin resistance, ... Swedish medical university Karolinska Institutet, published in the New ... in the body fat is only pernicious. Instead the findings ... necessary for fat cell turnover in the lean, healthy state. ...
... not just thinking big but also very, very, very ... director of Binghamton University,s Center for Advanced Sensors and ... that would detect and identify engineered nanoparticles. Her research ... the environmental release and transformation of these particles. ...
Cached Biology News:Beauty is in the eye of the beholder? 2Inflammation in body fat is not only pernicious 2Chemist monitors nanotechnology's environmental impact 2
(Date:1/15/2014)... SAN JOSE, California , January 15, 2014 ... antibody-drug conjugates for cancer, today announced the appointment of Thomas ... Reynolds has over 20 years, development experience gained in the ... Genetics. "I am delighted to welcome Tom at ...
(Date:1/15/2014)... , January 15, 2014 A study has ... on the Formula 1 track could help to tackle the ... Technologies (MAT), Stowhealth (a GP surgery based in Stowmarket) and ... provider Simplyhealth. Telemetry technology, which is inspired by ...
(Date:1/15/2014)... The Microcompetition with Foreign DNA theory explains how latent ... viruses is the Epstein Barr Virus (EBV), and one of ... a chronic inflammatory disease that destroys the body’s joints. As ... have high concentrations of EBV DNA in their bodies (1). ...
(Date:1/15/2014)... Freeslate, Inc ., the leading provider of ... one of India’s top five pharmaceutical companies, has received ... for high throughput solid form screening. , Lupin, ... range of quality, affordable generic and branded formulations and ...
Breaking Biology Technology:Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 3
... Nile Therapeutics, Inc. (OTCQB: NLTX), a biopharmaceutical company that ... that it has completed its previously announced private placement ... of 5,000,000 shares of common stock and five-year warrants ... for aggregate gross proceeds of $2.5 million.   ...
... June 23, 2011 ,   ... science consulting,has published an insight into the future development ... out a,vision of how the industry may look as ... reflects on the decisions it has made.,In particular, Alacrita ...
... June 22, 2011 Wound Management Technologies, Inc., (OTCQB: ... solutions today announced that Company President Deborah Jenkins Hutchinson, ... OneMedForum NY Conference on Thursday, June 23, 2011 at ... 45 East 45 St. in New York City. The ...
Cached Biology Technology:Nile Therapeutics, Inc. Completes $2.5 Million Private Placement 2Nile Therapeutics, Inc. Completes $2.5 Million Private Placement 3Alacrita Asks "Are We All Biotech Now?" 2Alacrita Asks "Are We All Biotech Now?" 3Wound Management Technologies' Webcasting Live from OneMedForum NY Biotech Conference on Thursday, June 23 at 10 am EDT 2Wound Management Technologies' Webcasting Live from OneMedForum NY Biotech Conference on Thursday, June 23 at 10 am EDT 3
... Highly-purified, endotoxin-free plasmid DNA preparations are ... in quantities from 1mg to multi-gram ... as large-scale (100mg-multi-gram) preparations are made ... preparation is formulated according to customer ...
... operate as a Voltage Clamp, as a Current ... electrophysiology research applications. Performance in any one ... This amazing instrument is made possible by ... Signal Processing (DSP) integrated circuit chips. Until very ...
... Ph.D. Peptide Display Cloning System facilitates the ... surface of bacteriophage M13 as coat protein ... displayed peptide and its encoding DNA sequence. ... can then be selected by the straightforward ...
... cell culture or fermentation is the ability ... and make rapid adjustments in response to ... Analyzers provide immediate analysis of key nutrients, ... fermentation media. BioProfile analyzers are fully automated, ...
Biology Products: