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:4/16/2014)... and soil processes are to blame for significant baseline ... a study published recently in the Journal of ... samples from all corners of Ohio showed that every ... of concern recommended by the U.S. Environmental Protection Agency. ... authors, who note that regulatory levels typically are set ...
(Date:4/16/2014)... Leo Heim and their colleagues at the University of ... of generating hydrogen using water and formaldehyde. The generation ... it comes to fuel cell technologies. The results of ... water and formaldehyde", have recently been published in the ... the new approach can be used to recycle industrial ...
(Date:4/15/2014)... Calif. UC Irvine neurobiologists have found that genetically ... into the brains of mice with the symptoms and ... in the journal Stem Cells Research and Therapy ... in two different mouse models. , Alzheimer,s disease, ... associated with accumulation of the protein amyloid-beta in the ...
Breaking Biology News(10 mins):Significant baseline levels of arsenic found in Ohio soils are due to natural processes 2Significant baseline levels of arsenic found in Ohio soils are due to natural processes 3Significant baseline levels of arsenic found in Ohio soils are due to natural processes 4UCI study finds modified stem cells offer potential pathway to treat Alzheimer's disease 2
... 2010) When researchers tested three different labeling agents ... effect the labeling agents had on stem cell phenotype, ... stem cell proliferation depending on the type of contrast ... and Spain tested USPIO (ultra small superparamagnetic iron oxide) ...
... voracious predatory crabs due to global warming could threaten ... published findings. "King crabs are ecologically important ... fisheries," said Dr Sven Thatje, an evolutionary ecologist at ... Science (SOES), which is based at the National Oceanography ...
... to spot prey, vision keeps many animals, including humans, alive. ... is it easier for us to spot movement of small ... things? The complexity of the neural network that supports vision ... and support from the National Science Foundation, Claire Wyart in ...
Cached Biology News:MRI contrast agents change stem cell proliferation 2King crab distributions limited by temperature in the Southern Ocean 2The zebrafish's neural circuit prevents it from biting off more than it can chew 2
(Date:1/14/2014)... SAN DIEGO and BETHESDA, ... announced today that they are joining together with ... (NIH) to help scientists develop more reliable tools ... on a faster timeline. Organovo is collaborating with ... and the National Eye Institute (NEI) to develop ...
(Date:1/14/2014)... Jan. 14, 2014  RXi Pharmaceuticals Corporation ... discovering, developing and commercializing innovative therapies addressing ... today announced that it received the Notice ... and Trademark Office on its unique self-delivering ... fibrosis. The patent covers the use of ...
(Date:1/14/2014)... and Cardiff, UK (PRWEB) January 13, 2014 ... development leader with more than 20 years in the ... optics and photonics . Hainsey will serve as the ... to have Dr. Hainsey join SPIE as our Technology ... staff,” said Dr. Andrew Brown, SPIE Senior Director for ...
(Date:1/14/2014)... 2014 Independent publisher Bitingduck Press, with ... Canada, has big ideas for 2014 in production and ... are to produce high-quality, low-cost, DRM-free ebooks and to ... , The first major development will be bookstore ... called WebBytez . WebBytez is a patent-pending way ...
Breaking Biology Technology:Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 2RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 3Photonics R&D Leader Bob Hainsey Joins SPIE Technical Staff 2Bitingduck Press Looks Forward to 2014 With Multimedia E-books 2
... becoming increasingly flatter - some have even become almost as ... dimensions, much to the delight of home cinema fans. Cellphones ... All of these developments owe their thanks to miniature light-emitting ... multitude of devices. However, LED technology does have a ...
... 16 Accuray Incorporated (Nasdaq: ARAY ), a global leader in ... at the Wells Fargo Securities Healthcare Conference in Boston on ... PT . , , , ... the presentation will be available online from the investor relations page of the ...
... Trans World Alloys (TWA), one of the country,s premier titanium sheet ... joined the company, as its new Chief Operating Officer. ACCORDING TO SANDY SHADROW, ... the metal business in a variety of areas." , ... Ed has attended the University of Baltimore , the ...
Cached Biology Technology:World of lights in the microcosmos 2Accuray Incorporated to Speak at Wells Fargo Securities Healthcare Conference 2Ed Brennan - New C.O.O. of Trans World Alloys 2
PAb to Hu-IFN-Alpha/Beta R2 [(IFNAR2) CD118], Rabbit Serum, neutralizing Binds to but does not neutralize human interferon alpha/beta receptor...
IMAGEQUANT 100 IQTL, 1 EA. Category: ImageQuant CCD Imagers....
Request Info...
RayBio Human Cytokine Antibody Array 1.1 (4 array membranes) with Accessory, detects 20 cytokines (for lysate) Class: Antibody Array Products Product Group: Antibody Array...
Biology Products: