Navigation Links
When temperatures get cold, newly-discovered process helps fruit flies cope
Date:7/21/2014

Cold-blooded animals cannot regulate their body temperature, so their cells are stressed when facing temperature extremes. Worse still, even at slightly colder temperatures, some biological processes in the cell are slowed down more than others, which should throw the cells' delicate chemical balance out of whack. Yet, those cells manage to keep their biological processes coordinated. Now researchers from the University of Rochester and the European Molecular Biology Laboratory have found out how they do that.

"The production of proteins is a key process in all cells, and it is important to make the right amounts of each protein at just the right time," said Michael Welte, an associate professor of biology at the University of Rochester. "What we have discovered are factors responsible for keeping that process perfectly coordinated in at least one type of cold-blooded animal."

Welte and his team made their discovery while studying the internal mechanisms of the egg cell of the fruit fly, known as Drosophila.

Welte explains that the production of certain proteins takes place along a type of assembly line that carries raw materials from the nucleus to the posterior end of the egg cell, where these proteins are then manufactured. When temperatures drop, the rate at which the proteins are built slows down significantly more than the rate at which the raw materials are deliveredsomething that has the potential of throwing off the entire operation. What keeps the assembly line functioningbased on the new researchis a protein called Klar. It does that by slowing down the rate at which the raw materials are delivered, to match the rate of protein building.

The research findings were published today in The Journal of Cell Biology.

The protein assembly line consists of microtubules that serve as train tracks on which the raw materialsincluding messenger RNA (mRNA)are carried to the protein-making
'/>"/>

Contact: Peter Iglinski/LeonorSierra
peter.iglinski@rochester.edu
585-275-4118
University of Rochester
Source:Eurekalert

Page: 1 2

Related biology news :

1. Rising ocean temperatures harm protected coral reefs
2. Rise in temperatures and CO2 follow each other closely in climate change
3. Increase in metal concentrations in Rocky Mountain watershed tied to warming temperatures
4. Warmer temperatures make new USDA plant zone map obsolete
5. Sea surface temperatures reach record highs on Northeast continental shelf
6. Warming temperatures cause aquatic animals to shrink the most
7. Himalayan glaciers will shrink even if temperatures hold steady
8. Low rainfall and extreme temperatures double risk of baby elephant deaths
9. Tree die-off triggered by hotter temperatures
10. New research helps place modern temperatures into a more complete statistical framework
11. Sea surface temperatures reach highest level in 150 years
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2015)... 2015 Den 10. internationale konference om Genomik ... 22. - 25. oktober i Shenzhen ... fødselsdag i år. Siden starten i 2006 er ICB ... ,omik,-feltet, og er en af de mest dynamiske, entusiastiske ... på nylige gennembrud og fremskridt inden for ,omik,-forskning, som ...
(Date:7/31/2015)... de julio de 2015 BGI llevará a cabo ... del 22 al 25 de octubre de 2015, en ... conferencia celebra su décimo aniversario este año. Desde su ... de las reuniones anuales más influyentes del mundo en ... las conferencias científicas más dinámicas, entusiastas y amenas. ...
(Date:7/31/2015)... de julho de 2015 A 10 a. ... será realizada pela BGI de 22-25 de outubro de 2015, ... A conferência está celebrando seu 10 o. aniversário ... se tornou uma das reuniões mais influentes do mundo ... mais dinâmicos, entusiastas e prazerosos. A ...
Breaking Biology News(10 mins):Den 10. internationale konference om Genomics (ICG-10) åbner i oktober 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 3A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 2A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 3
... do it. Bees do it. Even environmentally stressed fish do ... of Zoology is the first in the world to discover ... His research may provide the key to the survival of ... ocean ― currently threatened by global warming. In ...
... than going it alone much longer than previously thought, according ... algae made the transition from being a single-celled organism to ... during the Triassic Period. At that time, Earth ... and early mammals. Previous estimates had suggested Volvox ,s ...
... When fruit flies mate, the females, genes are activated ... reaction starts. This is shown in a study at ... publication, Journal of Evolutionary Biology .* ... so-called microarrays, researchers at Uppsala University can show how ...
Cached Biology News:Changing sexes on the sea floor 2How Volvox got its groove 2How Volvox got its groove 3
(Date:7/29/2015)... -- US-Australian drug discovery company, Novogen Limited (ASX: NRT; ... to progressing its ground-breaking technology platforms to Phase 1 ... the Company delivers the best value for shareholders. ... said the Company currently had an extensive program of ... and academic partnerships and initiatives, and he was working ...
(Date:7/29/2015)... , July 29, 2015  AsureQuality and ... molecular testing for applications in food and primary ... battery powered real-time PCR device, the Freedom4. ... right through to the supermarket shelf for producers, ... includes involvement in animal disease control and pest ...
(Date:7/29/2015)... July 29, 2015  AmnioChor Inc., an early stage ... very pleased to announce that the Musculoskeletal Transplant Foundation ... to invest in their seed round of development of ... storage capabilities. AmnioChor,s technology allows cryopreservation ... human stem cells living within those tissues. Amnion is ...
(Date:7/29/2015)... ... ... The third Medical Innovation Impact Index (MI3) Alert considers FDA processes for ... current system received a score of 0 (range -10 to +10) for its impact ... Fairleigh Dickinson University’s ( FDU ) Rothman Institute of Innovation and Entrepreneurship. Several changes ...
Breaking Biology Technology:Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 2Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 3Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 4Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 5Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 6Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 7Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 8Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 9Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 10AsureQuality and Ubiquitome Partner on Applications for Mobile Molecular Food Safety Testing 2The Musculoskeletal Transplant Foundation Agrees to Invest in AmnioChor 2Third Medical Innovation Impact Index Issued by Fairleigh Dickinson University’s Initiative for Patient-Centered Innovation (iPCI) 2Third Medical Innovation Impact Index Issued by Fairleigh Dickinson University’s Initiative for Patient-Centered Innovation (iPCI) 3
...  Nabsys, Inc., a life sciences company pioneering development ... that data demonstrating the first direct electronic re-sequencing ... the annual Advances in Genome Biology and Technology ... Island, Fla., and the Omics and Personalized Medicine ...
... 13, 2012  Regeneron Pharmaceuticals, Inc. (Nasdaq: REGN ... 2012 Global Healthcare Conference on Wednesday, February 15, 2012.  ... The session may be accessed through the Company,s web ... page.  An archived version of the presentation will be ...
... Feb. 10, 2012  Neuland Laboratories Ltd., (NSE: NEULANDLAB; ... ingredients (APIs), complex intermediates and contract research and ... today announced financial results for the third quarter ... 2011. Revenues for the third ...
Cached Biology Technology:Nabsys to Present DNA Sequence Data from Solid-State Nanodetectors at the Annual Advances in Genome Biology and Technology (AGBT) Meeting and the EMBL Omics and Personalized Health Conference 2Nabsys to Present DNA Sequence Data from Solid-State Nanodetectors at the Annual Advances in Genome Biology and Technology (AGBT) Meeting and the EMBL Omics and Personalized Health Conference 3Regeneron Announces Presentation at the Leerink Swann 2012 Global Healthcare Conference 2Neuland Labs Reports Third Quarter Fiscal Year 2012 Financial Results 2Neuland Labs Reports Third Quarter Fiscal Year 2012 Financial Results 3