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:1/18/2017)... 18, 2017 MedNet Solutions , ... the entire spectrum of clinical research, is proud ... year for the organization in terms of corporate ... eClinical products and services. The company,s exceptional achievements ... of iMedNet ™ ...
(Date:1/12/2017)...  Trovagene, Inc. (NASDAQ: TROV ), a ... that it has signed agreements with seven strategic partners ... Middle East for commercialization of the ... wave of international distribution agreements for Trovagene,s CLIA based ... The initial partners will introduce Trovagene,s liquid biopsy ...
(Date:1/12/2017)... PUNE, India , January 12, 2017 A new report ... 2022," projects that the global biometric technology market is expected to generate revenue of ... Continue Reading ... Allied ...      (Logo: http://photos.prnewswire.com/prnh/20140911/647229) ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... ... January 18, 2017 , ... ... Health (NIH) to update its Data Sharing Policy. Specifically, the nation’s leading informatics ... applications subject to the existing policy. AMIA recommended that NIH earmark funding for ...
(Date:1/19/2017)... YORK , Jan. 18, 2017 ... to reach USD 92.9 billion by 2025, according ... Inc. Pharmaceutical industry has been adaptive of the ... as early as 2002. Among the services outsourced, ... forerunners. For instance, Johnson & Johnson was the ...
(Date:1/18/2017)... ... 18, 2017 , ... Opal Kelly, a leading producer of ... announced the ZEM5310 USB 3.0 FPGA Module, combining a SuperSpeed USB 3.0 interface ... factor suitable for prototyping, testing, and production-ready integration. The ZEM5310 USB interface delivers ...
(Date:1/18/2017)... 18, 2017   Parent Project Muscular Dystrophy (PPMD) ... Duchenne muscular dystrophy (Duchenne) , today announced a ... Institute of Technology (NJIT) and Talem Technologies (Talem) as ... technology to assist people living with Duchenne. PPMD ... – an embedded computer, software, a force sensor and ...
Breaking Biology Technology: