Navigation Links
Circadian rhythms spark plants' ability to survive freezing weather
Date:4/12/2011

EAST LANSING, Mich. Just as monarch butterflies depend on circadian cues to begin their annual migration, so do plants to survive freezing temperatures.

All living things humans, animals, plants, microbes are influenced by circadian rhythms, which are physical, mental and behavioral changes that follow a 24-hour cycle. In the current issue of the Proceedings of the National Academy of Sciences, Michael Thomashow, University Distinguished Professor of molecular genetics, along with MSU colleagues Malia Dong and Eva Farr, has identified that the circadian clock provides key input required for plants to attain maximum freezing tolerance.

"The integration of cold-signaling pathways with the circadian clock may have been an important evolutionary event that has contributed to plant adaptation to cold environments," Thomashow said.

Thomashow, who is an elected member of the National Academy of Sciences for his contributions to the field of plant biology, has focused his research on the identification of stress response pathways involved in freezing and drought tolerance. Stresses, including extreme temperatures and water deficit, are major factors that limit the geographical locations where food and potential bioenergy crops can be grown.

His research led to the identification of the C-repeat binding factor, or CBF response pathway, a stress pathway that can be found in many different plants and plays a major role in freezing and drought tolerance. Reducing abiotic stresses, such as extremes in temperature and drought, can help expand where crops can be grown and increase yields on an annual basis, Thomashow said.

"Increasing the abiotic stress tolerance of crops is integral to keeping food production apace with the increasing world population and to the national vision of replacing a significant proportion of petroleum-based transportation fuels with renewal biofuels," he said.

Identifying the circadian clock's influence helps answer a major question that had been puzzling researchers regarding the CBF pathway and how plants sense changes in temperature and other environmental conditions that regulate the activity of the pathway.

Knowing that input from the circadian clock is required for plants to attain maximum freezing tolerance will be a key factor for researchers to develop "designer plants," ones that have modified CBF pathways that improve abiotic stress tolerance, Thomashow said.


'/>"/>

Contact: Layne Cameron
layne.cameron@ur.msu.edu
517-353-8819
Michigan State University
Source:Eurekalert

Related biology news :

1. UNC scientists pinpoint link between light signal and circadian rhythms
2. Circadian rhythms: Their role and dysfunction in affective disorder
3. Light, circadian rhythms affect vast range of physiological, behavioral functions
4. Texas A&M researchers find new mechanism for circadian rhythm
5. MicroRNAs grease the cells circadian clockwork
6. Two new studies on circadian rhythms
7. UNC study: Tinkering with the circadian clock can suppress cancer growth
8. Circadian clock may be critical for remembering what you learn, Stanford researchers say
9. Scientists clock on to how sunlight shapes daily rhythms
10. Scripps Research scientists identify new mechanism regulating daily biological rhythms
11. Squid pheromone sparks extreme aggression on contact
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/21/2016)... VANCOUVER, British Columbia , June 21, 2016 ... been appointed to the new role of principal ... has been named the director of customer development. ... , NuData,s chief technical officer. The moves reflect ... development teams in response to high customer demand ...
(Date:6/9/2016)... , June 9, 2016 ... deploy Teleste,s video security solution to ensure the safety of ... during the major tournament Teleste, an ... systems and services, announced today that its video security solution ... to back up public safety across the country. The ...
(Date:6/2/2016)... Perimeter Surveillance & Detection Systems, Biometrics & ... & Other Service  The latest report from ... of the global Border Security market . Visiongain ... billion in 2016. Now: In November 2015 ... and hardware technologies for advanced video surveillance. ...
Breaking Biology News(10 mins):
(Date:12/2/2016)... Dec 2, 2016 Research and Markets ... "Nanobiotechnology Applications, Markets and Companies" to their offering. ... , , ... the pharmaceutical and biotechnology industries is anticipated. Nanotechnology will be ... for optimal delivery to diagnostic applications in clinical trials. Many ...
(Date:12/2/2016)... ... December 01, 2016 , ... The Conference Forum has announced that ... and will take place on February 1-3, 2017 at the Roosevelt Hotel in New ... the program provides a unique 360-degree approach, which addresses the most up-to-date information regarding ...
(Date:12/2/2016)... YORK , Dec. 1, 2016   SurePure, ... photopurification, announced today that the Company has concluded an ... the right for a 90-day period to acquire units ... value of approximately USD 3.7 million.  ... agreement with Tamarack under which Tamarack will seek regulatory ...
(Date:11/30/2016)... , November 30, 2016 ... a few players hold a dominant share in the ... River Laboratories International, Inc., and Merck KGaA, held a ... 2015. Transparency Market Research observes that these companies are ... on development products that are do not require rabbit ...
Breaking Biology Technology: