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:2/16/2017)... 2017  Genos, a community for personal genetic ... received Laboratory Accreditation from the College of American ... laboratories that meet stringent requirements around quality, accuracy ... "Genos is committed to maintaining the ... honored to be receiving CAP accreditation," said ...
(Date:2/13/2017)... SAN FRANCISCO , Feb. 13, 2017 /PRNewswire/ ... a centralized platform that is designed to enhance ... the latest release in the RSA Fraud & ... to enable organizations to leverage additional insights from ... anti-fraud tools to better protect their customers from ...
(Date:2/10/2017)... Research and Markets has announced the addition of ... Commercial Aspects" to their offering. ... Biomarkers play an important ... selection of treatment as well for monitoring the results. There ... modern medicine. Biochip/microarray technologies and next generation sequencing are also ...
Breaking Biology News(10 mins):
(Date:3/28/2017)... -- Summary This report provides all the ... partnering interests and activities since 2010. Description The Partnering ... into the partnering activity of one of the world,s leading ... prepared upon purchase to ensure inclusion of the most up ... will be delivered in PDF format within 1 working day ...
(Date:3/28/2017)... March 28, 2017  Viking Therapeutics, Inc. ("Viking") (NASDAQ: ... of novel therapies for metabolic and endocrine disorders, today ... , Ph.D., will deliver a corporate presentation at H.C. ... Conference, being held April 3, 2017 at the St. ... for this presentation are as follows: ...
(Date:3/28/2017)... ... March 28, 2017 , ... Currently symptomatic therapies for ... recent study published in STEM CELLS suggests that human neural stem cell (hNSC) ... to produce more neural cells. , Strategies involving transplantation of these cells ...
(Date:3/28/2017)... Triangle Park, NC (PRWEB) , ... March 28, ... ... development company engaged in the development of a new orally administered treatment for ... Advisory Board. , CEO John Didsbury states, “As we seek to uniquely treat ...
Breaking Biology Technology: