Navigation Links
Scientists use an 'ice lolly' to find polar bacteria in their own backyard

To study the bacteria which survive in extreme cold, scientists no longer have to go to extreme environments, such as Antarctic lakes and glaciers. Bacteria previously isolated from polar climates, and have properties which allow them to survive in extreme cold, have been isolated from soil in temperate environments.

Professor Virginia Walker and her colleagues at Queen's University, Canada, have developed a technique to isolate bacteria which have properties to interact with, and modify, ice. This technique involved the formation of an 'ice finger' (or lolly) to select for bacteria which will adsorb to ice. These bacteria were then cultured and identified using their DNA.

The bacteria can modify ice and water in a number of ways. One of the species identified, Chryseobacterium sp., demonstrated Ice Recrystallisation Inhibition (IRI), a property that can be exploited in the production of ice-cream to prevent it from recrystallising and becoming 'crunchy'.

Other species isolated in this study promote the formation of ice crystals at temperatures close to melting, a property which is useful in the production of artificial snow.

Pseudomonas borealis is one species which is not only ice-forming, it is also thought to be tolerant to cold and could therefore have advantages for snow-making in artificial environments such as ski centres and in waste-water purification.

"Selecting for rare microbes that seem to stick to ice has been fun, but now the real work begins to find out what genes are responsible for this attraction" Said Professor Walker.

These findings will decrease the costs involved in the further study of such bacteria and their properties, as scientists will no longer need expeditions to the poles in order to isolate the bugs; they can find them in their own backyards.


'"/>

Source:Blackwell Publishing Ltd.


Page: 1

Related biology news :

1. Scientists ID molecular switch in liver that triggers harmful effects of saturated and trans fats
2. Scientists Replicate Hepatitis C Virus in Laboratory
3. Scientists detect probable genetic cause of some Parkinsons disease cases
4. Scientists find missing enzyme for tuberculosis iron scavenging pathway
5. Scientists seek answers on what activates deadly anthrax spores
6. Yale Scientists Find MicroRNA Regulates Ras Cancer Gene
7. Scientists collaborate to assess health of global environment
8. Scientists decipher genome of fungus that can cause life-threatening infections
9. Scientists discover the cellular roots of graying hair
10. Scientists rid stem cell culture of key animal cells
11. Scientists develop new color-coded test for protein folding
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Scientists use ice lolly find polar bacteria their own backyard

(Date:11/7/2014)... professor, biomedical engineering, in the Grove School of ... have identified a molecule that could lead to ... forms of breast cancer. , Triple negative breast ... to aggressive proliferation and metastasis and a lack ... discovered the overexpression of intercellular adhesion molecule-1 (ICAM-1) ...
(Date:11/6/2014)... metastasis, yet progress in preventing and treating migratory ... particularly challenging to design drugs that work against ... biology at Harvard Medical School. , "Unfortunately, ... metastasized." , Gujral and colleagues have now identified ... understand how metastasis begins. Their findings may also ...
(Date:11/5/2014)... Kelly Redmond has dedicated his career to understanding ... a general audience. , As deputy director and ... at Nevada,s Desert Research Institute, Redmond has more ... application and dissemination of climate data to the ... Meeting in San Francisco on December 15-19, 2014 ...
Breaking Biology News(10 mins):Migration negation 2Migration negation 3Nevada climatologist to be honored at AGU Fall Meeting for lifetime of public outreach 2
... Scientists at MIT and Brown University studying how ... variation in water current segregates right-handed bacteria from ... directions. This finding and the possibility of ... objects in the laboratory could have a big ...
... some of Australia,s potential weeds to move south by up ... Climate Adaptation Flagship. Weeds cost Australia more than $4 ... cause serious damage to the environment. In an ... climate change, CSIRO researcher, Dr John Scott, said, however, that ...
... New research shows that human teeth lost some enamel ... the home to whiten teeth. The study suggests that future ... to reduce these side effects. The researchers noted that ... amounts of enamel calcification. But this is the first study ...
Cached Biology News:Separating the good from the bad 2Climate change may wake up 'sleeper' weeds 2Home tooth bleaching slightly reduces enamel strength 2Home tooth bleaching slightly reduces enamel strength 3
(Date:11/21/2014)... November 20, 2014 The ... policy research organization representing leading California academic institutions, ... PwC US today released a report ... sciences industry growth. The trend shows a 4 ... 2015 California Biomedical Industry Report indicates that, ...
(Date:11/21/2014)... (PRWEB) November 20, 2014 The November ... available as an open access journal featuring the following ... fluorescent proteins to preserve photoresponsiveness in the retina , ... fluorescent in situ hybridization using chromogenic substrates in zebrafish ... DNA, RNA, and protein electrophoresis , Nuclear ...
(Date:11/21/2014)... CA (PRWEB) November 21, 2014 Why ... that makes Albert Einstein so instantly recognizable? Why have ... physicist, mathematician, astronomer and author Hilton Ratcliffe seeks out ... have nothing at all to do with science. In ... Harbor Publishing , November 21, 2014), Ratcliffe puts it ...
(Date:11/21/2014)... 2014 Deep Research Report on ... research report on the transformer market. The report ... and industry chain structure as well as industry ... including China’s domestic market as well as global ... analysis. The report also covers information on policy, ...
Breaking Biology Technology:California Healthcare Institute and PwC Report Boom in California’s Biomedical Industry 2California Healthcare Institute and PwC Report Boom in California’s Biomedical Industry 3California Healthcare Institute and PwC Report Boom in California’s Biomedical Industry 4BioTechniques: The International Journal of Life Science Methods Announces the Publication of the November 2014 Issue—Available in Print and Online 2BioTechniques: The International Journal of Life Science Methods Announces the Publication of the November 2014 Issue—Available in Print and Online 3“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 2“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 3“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 4International Transformer Industry - Analysis on Applications, Development & Forecasts Now Available at ReportsnReports.com 2International Transformer Industry - Analysis on Applications, Development & Forecasts Now Available at ReportsnReports.com 3
... - Five years removed from the dotcom bubble, when ... value of the online world, new business models that ... progressive in their cutting-edge approach to business and traditional ... picture of those business models was made clearer by ...
... Seven months after Journal Communications announced ... its shareholders, the company has instead decided to sell ... , ,Q-Comm and Journal Communications have signed a definitive ... the stock of Norlight, subject to federal and state ...
... shape, the issue of Net Neutrality will likely surface at ... all indications, U.S. Reps. John Dingell , D-Michigan, and ... issue to the 2007 legislative agenda. , ,Even Rep. ... has weighed in that something needs to be done. The ...
Cached Biology Technology:Web-centric entrepreneurs find models that attract investment 2Web-centric entrepreneurs find models that attract investment 3Web-centric entrepreneurs find models that attract investment 4Web-centric entrepreneurs find models that attract investment 5Journal to sell Norlight Telecommunications 2Net neutrality: To control or not control, that is the question 2Net neutrality: To control or not control, that is the question 3
... number is a new product number, ... number. If showing no availability yet, ... number (R4276) or contact customer service ... (expanded surface, easy grip) ...
... Custom Peptide Services offer a full ... your research needs. Services include: Peptide ... Peptide synthesis, purified product (70-95% ... (acetylation, amidation, biotinylation, fluorescein, myristylation, phosphorylation, and ...
... Endogens Bovine IFNγ ELISPOT (enzyme-lined immunospot) Kit ... single cell level. A spot forms at ... is counted (either using a dissection microscope ... to the number of cells added to ...
... number is a new product ... Cornings product number. If showing ... under the old Sigma-Aldrich number ... for assistance. Material: cap ...
Biology Products: