Navigation Links
Scientists clock on to how sunlight shapes daily rhythms
Date:11/22/2010

Fresh insight into how biological clocks adjust to having less sunlight in the winter could help us better understand the impact of jet lag and shift work.

Scientists studying the daily activity cycle in plants known as circadian rhythms have discovered a finely tuned process that enables the plant's genes to respond to the times of dawn and dusk each day, as well as the length of daylight in between.

This system helps the plant to reset its internal clock every day in response to seasonal changes in daylight, which helps the plant control the timing of key activities such as growth and flowering.

The findings shed light on how living things, including people, respond to patterns of daylight, and how our bodies respond when our daily rhythms are interrupted, for example by global travel or unsociable working hours.

Circadian rhythms which are found in most living things influence many biological functions that vary throughout the day. In people, these include sleepiness, body temperature, blood pressure, and physical strength.

Researchers at the University of Edinburgh used mathematical models to show how much the plants' rhythms accounted for dawn and dusk as well as day length.

The study, published in Molecular Systems Biology, was carried out with the Universities of Warwick and Central Lancashire and the Hungarian Academy of Sciences. It was funded by the Biotechnology and Biological Sciences Research Council and the Engineering and Physical Sciences Research Council.

Professor Andrew Millar of the University of Edinburgh's School of Biological Sciences, who led the study, said: "Our results give us valuable information on how plants and people respond to changing lengths of day. It could give a new way to understand how to cope when our daily rhythms of light and dark are interrupted."


'/>"/>

Contact: Catriona Kelly
Catriona.Kelly@ed.ac.uk
44-131-651-4401
University of Edinburgh
Source:Eurekalert

Page: 1

Related biology news :

1. Scientists discover genes linking puberty timing to body fat in women
2. Bacteria use toxic darts to disable each other, according to UCSB scientists
3. Scientists question indicator of fisheries health, evidence for fishing down food webs
4. Scientists learn more about how kidneys fail and how new drugs may intervene
5. Scripps Research scientists identify new mechanism regulating daily biological rhythms
6. Caltech scientists describe the delicate balance in the brain that controls fear
7. UNC scientists identify cellular communicators for cancer virus
8. Scientists discover how the songbirds brain controls timing during singing
9. Scientists pinpoint key defense against parasite infection
10. McMaster scientists turn skin into blood
11. Scientists at IRB Barcelona discover a new protein critical for mitochondria
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/23/2017)... , Aug. 23, 2017  The general public,s help is being enlisted ... bacteria that live in and on the human body –and are believed ... The Microbiome Immunity ... human microbiome, starting with the gut. The project's goal is to help ... credit: IBM ...
(Date:8/15/2017)... 15 2017   ivWatch LLC , a medical device company ... today announced receipt of its ISO 13485 Certification, the global standard ... Organization for Standardization (ISO®). ... Model 400 Continuous Monitoring device for the early detection of IV ... "This is an important milestone for ...
(Date:7/20/2017)... 2017 Delta (NYSE: DAL ) customers now can ... at Reagan Washington National Airport (DCA). ... Delta launches biometrics to board aircraft at Reagan ... Delta,s biometric boarding pass experience that ... now integrated into the boarding process to allow eligible Delta SkyMiles Members ...
Breaking Biology News(10 mins):
(Date:9/21/2017)... ... 21, 2017 , ... Vixiar Medical announced today that it ... to The LaunchPort™ Accelerator at the City Garage in Port Covington. The LaunchPort™, ... business services to its Residents. , Vixiar Medical recently closed a $1.5 ...
(Date:9/21/2017)... ... September 21, 2017 , ... Dr. Greg Leyer, Chief Scientific Officer of ... 27th. His presentation is at 12:10pm in the Probiotics Resource Center, Mandalay Bay Expo ... West and discuss how probiotics have shown impressive data in areas outside the gut ...
(Date:9/21/2017)... (France) , ... (PRWEB) September 21, 2017 , ... ... an international scientific and technical congress to review the latest knowledge on these ... of prestigious international speakers will discuss the impact of Biostimulants on Plant Nutrition, ...
(Date:9/21/2017)... Norwood, MA (PRWEB) , ... September 21, 2017 ... ... its proprietary clinical client portal. Each relaunch of the portal includes new features ... biotechnology and medical device companies seek to remain at the forefront of medical ...
Breaking Biology Technology: