HOME >> BIOLOGY >> NEWS
Canadian scientists find potent antifreeze protein that equips insects to brave winter

Researchers from Queen's University and the University of Alberta have gleaned the precise structure of winter protection proteins derived from insects, knowledge that could greatly benefit Canadian agriculture. The antifreeze proteins were found to be up to 100 times more powerful than similar proteins found in fish.

In two studies published in the July issue of Nature magazine, Queen's biochemist Dr. Peter Davies and his colleagues describe the unusual beta helix structure of the antifreeze proteins, the secret to some insects' ability to survive winters in temperatures as low as minus 30 degrees Celsius.

The new findings build on earlier research by Drs. Davies and Zongchao Jia and their students that explained how ocean fish survive Arctic waters as a result of the antifreeze proteins in their blood. Four years ago, the Queen's biochemists revealed the structural basis for how the fish proteins bind irreversibly to ice crystals and stop them from growing.

A secondary benefit of the research may be a powerful weapon in the fight against the spruce budworm, the scourge of the boreal forests of eastern Canada, and the mealworm beetle, commonly found where grains and animal feeds are stored. The Queen's researchers have isolated and documented the molecular structures of two "hyperactive" antifreeze proteins in these two insects.

"This is very exciting. These proteins are far more potent than those found in fish," says Dr. Davies. "With this information, we can go on to modify other molecules to produce new antifreeze proteins that mimic these or are even more effective."

The findings hold promise for agriculture in the event that antifreeze proteins can be used to make plants frost resistant and extend both the growing season and the geographic areas in which crops can be grown. They may also represent a breakthrough for the frozen food industry. "By controlling the size of ice crystals in frozen foods, y
'"/>

Contact: Nancy Marrello
marrello@post.queensu.ca
613-533-2035
Queen's University
23-Jul-2000


Page: 1 2

Related biology news :

1. Canadian Society of Agronomy partners with Plant Management Network
2. Canadian-led study identifies which colon cancer patients benefit from chemotherapy
3. UK-Canadian consortium commits $95 million to international health research project
4. Toronto General Hospital to be only Canadian site in first-ever genetic study of anorexia nervosa
5. Canadian scientists unlock secret of calcium waves in cells
6. Canadian scientists develop first-ever Fusarium-tolerant pastry
7. Canadian researchers find cancer suspect from grilled meat in human milk
8. Quadrennial joint annual meetings of American Society of Plant Biologists and Canadian Society of Plant Physiologists in Providence July 21-25 will present latest advances in plant science
9. Worlds largest scientific society providing scientific publications to Canadian academic research institutions
10. DNA lends scientists a hand, revealing new chemical reactions
11. Conference at UH opens doors for new scientists, engineers

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/23/2017)... N.Y. , June 23, 2017  IBM (NYSE: ... dairy research, today announced a new collaboration using next-generation ... chances that the global milk supply is impacted by ... Cornell University has become the newest academic institution to ... a food safety initiative that includes IBM Research, Mars, ...
(Date:5/16/2017)... DALLAS , May 16, 2017   ... for health organizations, and MD EMR Systems ... certified development partner for GE, have established a ... Patient Portal product and the GE Centricity™ products, ... Centricity EMR. These new integrations ...
(Date:4/18/2017)... 18, 2017  Socionext Inc., a global expert in SoC-based imaging ... server, the M820, which features the company,s hybrid codec technology. A ... Tera Probe, Inc., will be showcased during the upcoming Medtec Japan ... at the Las Vegas Convention Center April ... Click here for ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... (PRWEB) , ... October 10, 2017 , ... San Diego-based ... of its corporate rebranding initiative announced today. The bold new look is part ... as the company moves into a significant growth period. , It will also expand ...
(Date:10/10/2017)... ... ... Dr. Bob Harman, founder and CEO of VetStem Biopharma, Inc. ... event entitled “Stem Cells and Their Regenerative Powers,” was held on August 31st, ... was joined by two human doctors: Peter B. Hanson, M.D., Chief of Orthopedic Surgery, ...
(Date:10/10/2017)... ... October 10, 2017 , ... USDM ... firm for the life sciences and healthcare industries, announces a presentation by Subbu ... , The presentation, “Automating GxP Validation for Agile Cloud Platforms,” will present a ...
(Date:10/9/2017)... ... ... The award-winning American Farmer television series will feature 3 Bar Biologics in ... 8:30aET on RFD-TV. , With global population estimates nearing ten billion people by ... feed a growing nation. At the same time, many of our valuable resources are ...
Breaking Biology Technology:
Cached News: