Agro Times
Recent News |  Archives |  Tags |  Newsletter |  Message Board/Forum |  About |  Links |  Subscribe to AgroTimes.com RSS Feed Subscribe


More Articles
Galactic serial killerGalactic serial killer

Tiny crystals to boost solarTiny crystals to boost solar

A new species of horseshoe worm discovered in Japan after a 62 year gapA new species of horseshoe worm discovered in Japan after a 62 year gap

Domain walls in nanowires cleverly set in motionDomain walls in nanowires cleverly set in motion

Faithful allies since the CretaceousFaithful allies since the Cretaceous

Earthquake simulation tops 1 quadrillion flopsEarthquake simulation tops 1 quadrillion flops

Babies prefer fairness -- but only if it benefits them -- in choosing a playmateBabies prefer fairness -- but only if it benefits them -- in choosing a playmate

Positive, negative thinkers' brains revealedPositive, negative thinkers' brains revealed

Future computers that are 'normally off'Future computers that are 'normally off'

Ancient 'spider' images reveal eye-opening secretsAncient 'spider' images reveal eye-opening secrets

An ultrathin collagen matrix biomaterial tool for 3D microtissue engineeringAn ultrathin collagen matrix biomaterial tool for 3D microtissue engineering

Friedreich's ataxia -- an effective gene therapy in an animal modelFriedreich's ataxia -- an effective gene therapy in an animal model

Chikungunya poised to invade the AmericasChikungunya poised to invade the Americas

A new twist makes for better steel, researchers findA new twist makes for better steel, researchers find

Renewable energy market share climbs despite 2013 dip in investmentsRenewable energy market share climbs despite 2013 dip in investments

Research suggests autumn is ending later in the northern hemisphereResearch suggests autumn is ending later in the northern hemisphere

Sniff study suggests humans can distinguish more  than 1 trillion scentsSniff study suggests humans can distinguish more than 1 trillion scents

Study finds gaming augments players' social livesStudy finds gaming augments players' social lives

A breakthrough in creating invisibility cloaks, stealth technologyA breakthrough in creating invisibility cloaks, stealth technology

Off the shelf, on the skin: Stick-on electronic patches for health monitoringOff the shelf, on the skin: Stick-on electronic patches for health monitoring

Overcoming structural uncertainty in computer modelsOvercoming structural uncertainty in computer models

Monkey caloric restriction study shows big benefit; contradicts earlier studyMonkey caloric restriction study shows big benefit; contradicts earlier study

Researchers developed world's first fluorescent sensor to detect date rape drugResearchers developed world's first fluorescent sensor to detect date rape drug

Protein called YAP gives blood vessels strength, shapeProtein called YAP gives blood vessels strength, shape

Strengthening learning in children: Get outside and playStrengthening learning in children: Get outside and play

Copied from nature: Detecting software errors via genetic algorithmsCopied from nature: Detecting software errors via genetic algorithms

Turning back the clock on aging muscles?Turning back the clock on aging muscles?

Gecko-inspired adhesion: Self-cleaning and reliableGecko-inspired adhesion: Self-cleaning and reliable

New study finds differences in concussion risk between football helmetsNew study finds differences in concussion risk between football helmets

Researchers show how plants tell the time (11/7/2013)

Tags:
arabidopsis, circadian rhythms, genes, lead, leaf, photosynthesis, plants, produce, research, seedlings, sugar, sugars

Plants use sugars to tell the time of day, according to research published in Nature today.

Plants, like animals, have a 24 hour 'body-clock' known as the circadian rhythm. This biological timer gives plants an innate ability to measure time, even when there is no light - they don't simply respond to sunrise, for example, they know it is coming and adjust their biology accordingly. This ability to keep time provides an important competitive advantage and is vital in biological processes such as flowering, fragrance emission and leaf movement.

BBSRC-funded scientists from the University of Cambridge Department of Plant Sciences are studying how plants are able to set and maintain this internal clock. They have found that the sugars produced by plants are key to timekeeping.

Plants produce sugar via photosynthesis; it is their way of converting the sun's energy into a usable chemical form needed for growth and function.

This new research has shown that these sugars also play a role in circadian rhythms. Researchers studied the effects of these sugars by monitoring seedlings in CO2-free air, to inhibit photosynthesis, and by growing genetically altered plants and monitoring their biology. The production of sugars was found to regulate key genes responsible for the 24 hour rhythm.

Dr Alex Webb, lead researcher at the University of Cambridge, explains: "Our research shows that sugar levels within a plant play a vital role in synchronizing circadian rhythms with its surrounding environment. Inhibiting photosynthesis, for example, slowed the plants internal clock by between 2 and 3 hours."

The research shows that photosynthesis has a profound effect on setting and maintaining robust circadian rhythms in Arabidopsis plants, demonstrating a critical role for metabolism in regulation of the circadian clock.

Dr Mike Haydon, who performed much of the research and is now at the University of York, added: "The accumulation of sugar within the plant provides a kind of feedback for the circadian cycle in plants - a bit like resetting a stopwatch. We think this might be a way of telling the plant that energy in the form of sugars is available to perform important metabolic tasks. This mirrors research that has previously shown that feeding times can influence the phase of peripheral clocks in animals."

Note: This story has been adapted from a news release issued by the Biotechnology and Biological Sciences Research Council

Post Comments:

Search
New Articles
Agroforestry systems can repair degraded watershedsAgroforestry systems can repair degraded watersheds

Hormone levels linked to survival of deer calves, study suggests

Using tobacco to thwart infectious disease?Using tobacco to thwart infectious disease?

New Capsicum annuum pepper contains high concentrations of beneficial capsinoids

Resistance is not futileResistance is not futile

Nitrogen source determined significant for inflorescence development in PhalaenopsisNitrogen source determined significant for inflorescence development in Phalaenopsis

Engineered bacteria produce biofuel alternative for high-energy rocket fuelEngineered bacteria produce biofuel alternative for high-energy rocket fuel

Phloem production in Huanglongbing-affected citrus trees

Prestorage conditioning, diphenylamine improve condition of 'honeycrisp' apple

Studying crops, from outer spaceStudying crops, from outer space

Scientists find a molecular clue to the complex mystery of auxin signaling in plantsScientists find a molecular clue to the complex mystery of auxin signaling in plants

Tracking sugar movement in plantsTracking sugar movement in plants

Pesticides make the life of earthworms miserablePesticides make the life of earthworms miserable

Pathogens in cheesePathogens in cheese

Forests crucial to green growth



Archives
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
November 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
August 2009
July 2009
June 2009
May 2009
April 2009
March 2009
February 2009
January 2009


Science Friends
Astronomy News
Sports Tech
Biology News
Biomimicry Science
Cognitive Research
Chemistry News
Tissue Engineering
Cancer Research
Cybernetics Research
Electonics Research
Fossil News
Forensics Report
Genetic Archaeology
Genetics News
Geology News
Microbiology Research
Nanotech News
Physics News
Parenting News


  Archives |  Submit News |  Advertise With Us |  Contact Us |  Links
Use of this site constitutes acceptance of our Terms of Service and Privacy Policy. All contents © 2000 - 2015 Web Doodle, LLC. All rights reserved.