Navigation Links
Unique gene regulation gives chilly bugs survival advantage at bottom of the world

The larvae of Antarctic midges never stop producing special proteins that minimize environmental stress, allowing them to withstand a range of intense environmental conditions in one of the world's harshest environments.

Scientists found that adult midges (Belgica antarctica) lose their ability to continually express these protective heat-shock proteins. Instead, like most animals, adult midges produce these proteins only when they are stressed. The discovery currently appears in the online edition of the Proceedings of the National Academy of Sciences.

The proteins help defend the larval midges against environmental stresses including temperature changes as well as changes in water, oxygen and pH levels, said David Denlinger, the study's lead author and a professor of entomology at Ohio State University.

"They've somehow figured out a way to maintain a level of these heat-shock, or stress, proteins and still make proteins that are vital for growth and development," he said.

This mechanism seems to offer the larvae protection during their two-year life span, most of which is spent encased in ice.

All animals, including humans, make heat shock proteins, but normally they only do so during times of extreme physical stress. Curiously, adult midges don't express these proteins all the time ?only during periods of extreme environmental stress. Yet when most insects express stress proteins, it temporarily compromises the production of other proteins, Denlinger said.

"The production of stress proteins usually brings development to a halt," he said. "But in this case, the larvae merrily go about their business of feeding and growing while producing their stress proteins."

The Antarctic midge is barely bigger than a grain of rice, but it's still the largest free-roaming terrestrial animal to inhabit Antarctica. The larvae resemble tiny black worms.

"It's the largest species that has adapted to living on t
'"/>

Source:Ohio State University


Page: 1 2 3

Related biology news :

1. Breast Cancer May Be Uniquely Sensitive To Inhibitors Of PI3K Pathway
2. Unique library of plant genes germinates, takes root at UNC
3. Invitrogen Launches i-Path -- A Unique Systems Biology Platform at BIO 2005
4. Uniquely human component of language found in gregarious birds
5. Unique equine cataract surgery offered on routine basis
6. Unique dual target specificity of kinase inhibitor key for success against cancer
7. Unique soybean lines hold promise for producing allergy-free soybeans
8. Unique tomatoes tops in disease-fighting antioxidants
9. New insight into regulation of blood stem cells
10. NYU, Rockefeller researchers find complexity of regulation by microRNA genes
11. MicroRNAs play a big part in gene regulation - and evolution
Post Your Comments:
(Date:1/22/2015)... Research and Markets ( http://www.researchandmarkets.com/research/wxdglm/global_wearable ) ... Wearable Technologies Market and Applications, Opportunities, Industry Analysis, ... 2014-2020" report to their offering. , ... can be worn on the user,s body and ...
(Date:12/22/2014)... 2014 Research and Markets ( http://www.researchandmarkets.com/research/fx4bg3/the_global ... "The Global Watermarking and Fingerprinting Markets" report ... http://photos.prnewswire.com/prnh/20130307/600769 This insight provides an ... fingerprinting markets. Watermarking aims to control and monitor ...
(Date:12/19/2014)... LaunchKey , the first decentralized mobile authentication and authorization ... era, today announced the close of $3 million in ... Metamorphic Ventures with participation from ENIAC Ventures, Crosslink Capital, ... has raised $4 million to date, and will use ...
Breaking Biology News(10 mins):Global Wearable Technologies Market and Applications, Opportunities, Industry Analysis, Segmentation, Size, Growth, Share, Overview, Trends and Forecast 2014-2020 2The Global Watermarking and Fingerprinting Markets 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 3
... Conservation Society in an atoll reef lagoon in Glover,s ... encouraging increases in populations of predatory fish species. However, ... herbivorous fish, which feed on the algae that smother ... will help WCS researchers in their search for new ...
... Va. Battlefield corpsmen and medical professionals across the country ... and Drug Administration approved the first hand-held device to ... the unit, called the Infrascanner, was initiated and funded ... portable, battery-powered medical device reveals intracranial hematomas soon after ...
... -- Bioengineers at Tufts University School of Engineering ... deliver precise amounts of drugs over time and without ... under normal temperature and pressure and from water, so ... maintain their activity prior to use. They are also ...
Cached Biology News:Belize protected area boosting predatory fish populations 2Belize protected area boosting predatory fish populations 3Naval technology could be a lifesaver 2Silk microneedles deliver controlled-release drugs painlessly 2
(Date:1/22/2015)... The laboratory information management systems market ... number of technological advancements due to factors such as ... to integrate healthcare systems, and increasing government support for ... integration. Key players in the market focus on technological ...
(Date:1/22/2015)... California (PRWEB) January 22, 2015 Pipette.com ... Offer to their comprehensive portfolio of Eppendorf products. ... customers to purchase a Centrifuge 5424/5424 R and receive ... of either Eppendorf Research plus or Eppendorf Reference 2 ...
(Date:1/22/2015)... (PRWEB) January 22, 2015 Controlled Substance ... Alliance, which helps companies check the legal requirements around ... expand to China. , As their international operations ... globally adopting software solutions built as a result of ...
(Date:1/22/2015)... Jersey , 22 de enero de 2015  El Dr. ... hoy su llamada a nominaciones para 2015. Este prestigioso ... hecho, o tiene el potencial para hacer, contribuciones destacadas ... se aceptarán hasta el 15 de marzo de 2015 ...
Breaking Biology Technology:Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 3Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 4Eppendorf Announces Promotional Bundle Which Includes: Eppendorf Centrifuge 5424, 3-Pack of Pipettes, and Tips - Available Now at Pipette.com 2Global Compliance Service for Controlled Substances to Expand to China 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 3El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 4
... 1 SynCo Bio Partners B.V., the,expert in long ... has expanded its business into a new geographical,market, with ... biotherapeutic,for an emerging Japanese pharmaceutical company. , ... live biotherapeutic,based anticancer drug. The project will first involve ...
... , , FORT LAUDERDALE, Fla., ... a leader in integrated electronic data capture (EDC) ... fastest growing companies in the EDC marketplace, announced today that ... have joined its rapidly expanding partnership program, the CRO Preferred ...
... , , SOUTH SAN FRANCISCO, ... changing the paradigm of drug discovery and development through the ... Plunkett, Ph.D., as vice president and chief financial officer. , ... term success, and Matt,s career over the last decade has given ...
Cached Biology Technology:SynCo Bio Partners Enters the Japanese Market as it Signs its First Agreement With a Japanese Pharmaceutical Company 2OmniComm Systems Inc. Expands Its Successful CRO Preferred Program(TM) By Signing On Three New CRO Partners 2OmniComm Systems Inc. Expands Its Successful CRO Preferred Program(TM) By Signing On Three New CRO Partners 3iPierian Appoints Dr. Matthew J. Plunkett as Chief Financial Officer 2
Mouse polyclonal antibody raised against a partial recombinant NCLN. NCBI Entrez Gene ID = 56926...
Mouse monoclonal antibody raised against a partial recombinant FBXO11. NCBI Entrez Gene ID = FBXO11...
Mouse polyclonal antibody raised against a partial recombinant COASY. NCBI Entrez Gene ID = 80347...
MAb to Catenin beta, N-terminal (exon 2) Catenin, beta, N-terminal (exon 2)...
Biology Products: