Navigation Links
Just a question of time?
Date:7/5/2012

Function and significance of the biological clocks in polar planktonic organisms are the focus of the virtual Helmholtz Institute entitled PolarTime starting July 1st, 2012. It is one of eleven new virtual institutes funded by Germany's Helmholtz Association. PolarTime, coordinated by the Alfred Wegener Institute for Polar and Marine Research, will be supported for up to five years with approximately three million euros from the impulse and network fund of the Helmholtz Association.

The anthropogenic influence on the climate system is particularly pronounced in Polar Regions. Examples of environmental changes in the Arctic and Antarctic include the receding of sea ice and ocean warming. How do marine organisms react to these changes in the environment given that their vital processes, such as reproduction cycles and seasonable food availability, have been synchronised with the environment over millions of years? To be able to answer these questions, researchers in the virtual Helmholtz Institute PolarTime are taking a very close look at Antarctic krill (scientific name: Euphausia superba). It serves as a model organism for a polar plankton species which has adapted to the extreme conditions.

Krill plays a key role in the foodwebs of the South Ocean. During the course of evolution krill has developed a large number of biological rhythms that are closely connected to large seasonal changes in its environment. Almost all organisms, from protozoan to humans have adapted to the periodic change from day to night by developing an inner biological clock. This clock permits the synchronisation of physiological and behavioural processes with the diurnal variability in environmental conditions. It can also determine the seasonal rhythms with surprising temporal precision. However, the inner clock must be reset from time to time. This happens thanks to so-called outer "timers" such as the length of daylight (photoperiod).

A team around spokesmen
'/>"/>

Contact: Dr. Folke Mehrtens
medien@awi.de
49-047-148-312-007
Helmholtz Association of German Research Centres
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Fielding questions about climate change
2. New CU-NOAA monitoring system clarifies murky atmospheric questions
3. Researchers question pulling plug on pacifiers
4. Study raises questions about use of anti-epilepsy drugs in newborns
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2014)... found to be a key gene responsible for hearing in ... cells of the inner ear that contracts and expands rapidly ... phonograph horn, amplify sound waves to make hearing more sensitivity. ... advanced online edition of Molecular Biology and Evolution , ... independently evolved to play a critical role in the ultrasonic ...
(Date:7/31/2014)... By tracing nearly 3,000 genes to the earliest ... Florida scientists have created an extensive "Tree of ... next-generation DNA sequencing. , Among the study,s ... to small moths than to large ones, which ... The study also found that some insects once ...
(Date:7/31/2014)... studied 100 twin pairs have identified a gene mutation that ... six hours of sleep per night. The genetic variant ... sleep deprivation. , Results show that a participant with p.Tyr362His ... average nightly sleep duration of only five hours, which was ... slept for about six hours and five minutes per night. ...
Breaking Biology News(10 mins):UF study advances 'DNA revolution,' tells butterflies' evolutionary history 2UF study advances 'DNA revolution,' tells butterflies' evolutionary history 3Study of twins discovers gene mutation linked to short sleep duration 2
... A new technique for transplanting the ovaries of women ... cancer treatment was outlined to the 25th annual conference ... today (Monday 29 June). Dr. Pascal Piver, ... Limoges, France, described a new, two-step method of ovarian ...
... Shingu City, Japan--Deepsea Drilling Vessel CHIKYU has resumed IODP ... the Kii Peninsula of Japan. The scientific drilling expedition,s ... meters. Following sea floor surveys, the crew began fitting ... an upper section of the first borehole to be ...
... June 2009 Elsevier, the leading publisher of scientific, ... the highlights of its journal impact factor performance in ... factors (IF) increase from 2007 to 2008. According to ... journals took the #1 position in 51 categories (of ...
Cached Biology News:Ovarian transplantation: First baby is born after a new technique 2First riser-drilling research operations undertaken 2Elsevier announces 2008 journal impact factor highlights 2Elsevier announces 2008 journal impact factor highlights 3
(Date:7/31/2014)... famous for a number of breakthroughs, which altered the ... a paper, which laid the foundation of computer science, ... He next played a pivotal role in the Second ... military codes, enabling the Allies to defeat the Nazis ... he turned his attention to artificial intelligence and proposed ...
(Date:7/31/2014)... Hopkins have mapped the sound-processing part of the mouse ... forest and the trees in view. Their imaging technique ... activity within mice, and it enabled the team to ... each other. The results, which represent a step toward ... online July 31 the journal Neuron . , ...
(Date:7/31/2014)... , July 31, 2014 The SNIS ... with $25,000 to fund a translational research project.  ... 2011, the gift was presented at the Society ... Meeting in Colorado Springs, CO. ... neurointerventional approaches to neurovascular conditions, SNIS formed the ...
(Date:7/31/2014)... Calif. , July 31, 2014 Rogne ... San Francisco Bay Area , has acquired a ... of Oxford,s commercialisation company. The potent anti-inflammatory activity of ... at the University of Oxford,s Sir William ... company, which has raised over $1.5 million in seed ...
Breaking Biology Technology:A mathematical theory proposed by Alan Turing in 1952 can explain the formation of fingers 2A mathematical theory proposed by Alan Turing in 1952 can explain the formation of fingers 3New mapping approach lets scientists zoom in and out as the brain processes sound 2SNIS Foundation Bestows First Grant Award For Cutting-Edge NeuroInterventional Research 2SNIS Foundation Bestows First Grant Award For Cutting-Edge NeuroInterventional Research 3Oxford licenses anti-inflammatory peptides to San Francisco Bay Area start-up 2Oxford licenses anti-inflammatory peptides to San Francisco Bay Area start-up 3
... long-awaited speaking faculty for the September Pharma ChemOutsourcing ... conference website reports Mark Alexay, President of Apaporis ... comprised of 100 speakers from pharmaceutical companies and ... the pipeline. The speaker list may be viewed ...
... Christine Lawless, MD, has accepted the position as ... continuing medical education (CME), beginning March 2, 2009. Recognized ... medicine cardiology, Dr. Lawless recently completed her clinical tenure ... where she was Associate Professor of Internal Medicine and ...
... Endpoints,NEW YORK, March 10 Intra-Cellular Therapies, Inc. today ... trial in patients with Sleep Maintenance Insomnia (SMI). ... wave sleep and decreased the duration of wake after ... prespecified primary and key secondary endpoints of the trial. ...
Cached Biology Technology:Pharma ChemOutsourcing Unveils 100 Pharma & Biotech Speaker Faculty for 2009 Conference September 14-16 in Long Branch, NJ 2Former President of Sports Cardiology Consultants, LLC Christine Lawless, MD, MBA, ABCL, FACC, FACSM, Named Medical Director of CME Enterprise 2Intra-Cellular Therapies Reports Positive Final Results of a Phase II Clinical Trial with ITI-007 in Patients with Sleep Maintenance Insomnia 2Intra-Cellular Therapies Reports Positive Final Results of a Phase II Clinical Trial with ITI-007 in Patients with Sleep Maintenance Insomnia 3Intra-Cellular Therapies Reports Positive Final Results of a Phase II Clinical Trial with ITI-007 in Patients with Sleep Maintenance Insomnia 4Intra-Cellular Therapies Reports Positive Final Results of a Phase II Clinical Trial with ITI-007 in Patients with Sleep Maintenance Insomnia 5Intra-Cellular Therapies Reports Positive Final Results of a Phase II Clinical Trial with ITI-007 in Patients with Sleep Maintenance Insomnia 6Intra-Cellular Therapies Reports Positive Final Results of a Phase II Clinical Trial with ITI-007 in Patients with Sleep Maintenance Insomnia 7
... long electrophoresis hood is a ... systems. Placed on the transilluminator, ... place and provides a darkroom ... the lab bench. This 15.2 ...
... derived from frozen embedded tissue blocks, which ... to ensure the highest quality. Tissues of ... block, sectioned at a thickness of 7 ... are large (3-5 mm in diameter) in ...
... are derived from frozen embedded tissue blocks, ... procedures to ensure the highest quality. Tissues ... one block, sectioned at a thickness of ... are large (3-5mm in diameter) in comparison ...
... microarrays are derived from Paraffin embedded tissue ... control procedures to ensure the highest quality. ... in one block, sectioned at a thickness ... slides. Sections are large (3-5mm in diameter) ...
Biology Products: