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:12/17/2014)... 16, 2014  Automation is fundamentally transforming the ... than at international borders. Over the past decade, ... allowed veteran travelers to self process through border ... Kiosks at an increasing number of airports, seaports, ... According to Maxine Most , Principal ...
(Date:12/11/2014)... , Dec. 09, 2014 Research and ... ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has ... in India 2015-2019" report to their offering. ... this market is the adoption of multimodal biometric ... characteristic of an individual for verification and identification ...
(Date:12/10/2014)... You,ve been here before: you desperately need to sign into ... key or the answer to your secret question. What,s your ... Today, Hoyos Labs , a digital infrastructure security ... an end to the frustration that comes with usernames, passwords ... a user,s smartphone to acquire his or her biometrics to ...
Breaking Biology News(10 mins):Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3
... 1st issue of G&D, Drs. Yong Sun Lee and Anindya ... in vitro. , "Overexpression of HMGA2 is an important ... Dutta. “It is very exciting to realize that microRNAs have ... so may have a role in the causation and perhaps ...
... blockbuster "Finding Nemo" when a school of fish makes a rapid ... other intricate designs. While the detailed shapes might be a bit ... how does a school of fish or a flock of birds ... reorganize as a unit, without knowing what the entire group is ...
... K. Long, MD, an endocrinology research fellow at the ... California, San Francisco, was one of only three scientists ... the National Space Biomedical Research Institute (NSBRI). , Long's ... possible methods of treating or preventing bone loss resulting ...
Cached Biology News:University of Alberta researchers unravel intricate animal patterns 2University of Alberta researchers unravel intricate animal patterns 3Researcher to study astronaut bone loss for space biology agency 2Researcher to study astronaut bone loss for space biology agency 3
(Date:12/19/2014)... CAMBRIDGE, MA (PRWEB) December 18, 2014 ... adults in the United States suffer from one or ... arthritis, asthma, or cancer. Medication can address some of ... to daily activities that many sufferers face. While implanted ... surgery and stimulate the whole nerve, which can induce ...
(Date:12/19/2014)... The empty capsules market is ... population and technological innovations in the empty capsules ... catalysing the growth of the empty capsules market. ... , Scope of Report , The report will ... entrants/smaller firms to gauge the pulse of the ...
(Date:12/19/2014)... -- Egenix, Inc. is pleased to announce that Lionel ... to succeed Donald Fresne ; Mr. Fresne has also ... member of the Board.  In recognition of the many contributions ... almost twenty years, the Board designated Mr. Fresne as Chairman ... a Search Committee to find a suitable replacement with Biotech ...
(Date:12/17/2014)... 2014 The Activated Carbon Manufacturing ... is why IBISWorld updated its original industry research report. ... from an intensified focus on environmental policy. Over the ... standards for power plants and a range of other ... Industry Analyst Sarah Kahn, “a range of downstream industrial ...
Breaking Biology Technology:Draper Wins GSK Funding for Smaller, Smarter Implantable Devices 2Empty Capsules Market Hit to Reach $1,820 Million by 2019 - New Research Report by MarketsandMarkets 2Empty Capsules Market Hit to Reach $1,820 Million by 2019 - New Research Report by MarketsandMarkets 3Empty Capsules Market Hit to Reach $1,820 Million by 2019 - New Research Report by MarketsandMarkets 4Activated Carbon Manufacturing in the US Industry Market Research Report Has Been Updated from IBISWorld 2Activated Carbon Manufacturing in the US Industry Market Research Report Has Been Updated from IBISWorld 3
... ... distribution partner for the Taiwanese market. Uni-Onward,s recent focus on USP/NF grade chemicals is ... lab chemicals distributor in Taiwan and has built an outstanding reputation since its establishment ... ...
... Researchers from Rensselaer Polytechnic Institute have developed a ... strength of infrared imaging and could lead to a ... By leveraging the unique properties of nanoscale gold ... of the device, the researchers have doubled the detectivity ...
... OriGene Technologies, Inc. with the support of Wuxi Biopharmaceutical R&D ... and most sophisticated monoclonal antibody production centers in the world in Wuxi, ... have over one thousand employees with the capacity to produce over 20,000 ... , ...
Cached Biology Technology:Spectrum Announces Uni-Onward as its Taiwanese Distributor 2Nanotech discovery at Rensselaer could lead to breakthrough in infrared satellite imaging technology 2Nanotech discovery at Rensselaer could lead to breakthrough in infrared satellite imaging technology 3OriGene Technologies, Inc. to Build the World's Largest TrueMAB(TM) Monoclonal Antibody Facility in Wuxi, China 2
SEQUENASE PCR PRODUCT PRE-SEQU, 1 EA. Category: SEQUENASE....
... Cyno serum is collected off the clot from fasted ... age. Available Anticoagulants: N-02: ... K2EDTA N-08: Potassium Oxalate N-10: ... ACD N-07: CPD N-09: K3EDTA ...
adult...
Porcine Serum Available Anticoagulants: N-02: Citrate N-04: Heparin (Na) N-06: K2EDTA N-08: Potassium Oxalate N-10: EDTA (Na) N-03: Alsevers N-05: ACD N-07: CPD N-09: K3EDTA N-11...
Biology Products: