Navigation Links
Why spring is blooming marvelous (and climate change makes it earlier)
Date:3/25/2012

With buds bursting early, only for a mild winter to turn Arctic and wipe them out, we are witnessing how warm weather can trigger flowering, even out of season, and how important it is for plants to blossom at the right time of year.

BBSRC-funded scientists have unpicked why temperature has such a powerful affect on how plants flower. In research to be published in the journal Nature, scientists from the John Innes Centre on the Norwich Research Park have identified the switch that accelerates flowering time in response to temperature.

With warm air, a control gene, called PIF4, activates the flowering pathway, but at lower temperatures the gene is unable to act.

"What is striking is that temperature alone is able to exert such specific and precise control on the activity of PIF4," said Dr Phil Wigge, the lead scientist in the study.

Previously, it has been shown that PIF4 is vital for controlling other aspects of plant responses to warmth, for example growth, but this is the first time that the gene has been shown to be necessary for the activation of flowering by temperature.

Flowering is activated by a special molecule, called Florigen. Florigen is activated by many signals, including the longer days of spring. Some plants rely more on temperature, others more on daylength to control key stages in their life cycle such as leaf emergence and flowering. This is reflected in the old saying "Ash before Oak, you're in for a soak; Oak before Ash, you're in for a splash."

While the pathway that activates florigen in response to daylength has been known for many years, how temperature activates Florigen has been a mystery until now.

At lower temperatures, plants do still flower eventually but via other pathways. Any acceleration triggered by PIF4 is lost as it does not bind to and switch on the Florigen gene. As temperatures increase, PIF4 is able to bind the Florigen gene and trigger flowerin
'/>"/>

Contact: Zoe Dunford
zoe.dunford@nbi.ac.uk
44-160-325-5111
Norwich BioScience Institutes
Source:Eurekalert

Page: 1 2

Related biology news :

1. An early spring drives butterfly population declines
2. Annual Drug Discovery Conferences Being Held in Boston MA, Spring 2012
3. Mid-Atlantic suburbs can expect an early spring thanks to the heat of the big city
4. Air Force Office of Scientific Research hosts annual program Spring Review
5. Some bacteria attack using spring-loaded poison daggers
6. Springer to publish journal and book series for Entomological Society of Brazil
7. Consuming fish during pregnancy improves offsprings cognitive development and prosocial conduct
8. Multiple births lead to weight gain and other problems for mouse moms and male offspring
9. SpringerLink now offers more than 50,000 eBooks
10. Springer in book partnership with American Society of Gene & Cell Therapy
11. OHSU research produces the worlds first primate chimeric offspring
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/31/2014)... synchrotron source that emits over a wide part of ... is currently being built in Lund, Sweden. The MAX ... the team putting together its component parts in a ... circumference of just a few hundred metres. Nevertheless, if ... new class of experiments that require source brightness and ...
(Date:10/31/2014)... steps involved in programmed cell death, offering new targets ... neurodegenerative diseases. , The research teams from the ... the three-dimensional structure of a key cell death protein ... it causes cell death. Their studies were published in ... Proceedings of the National Academy of Sciences . ...
(Date:10/30/2014)... a $1.04 million grant from the U.S. Army ... osteoarthritis using a patient,s own stem cells, spurred ... polymers., Liping Tang, a bioengineering professor and interim ... is primarily focused on helping soldiers who are ... if we inject microscaffolding that we,ve developed into ...
Breaking Biology News(10 mins):A new generation of storage -- ring 2A matter of life and death: Cell death proteins key to fighting disease 2UTA researcher uses microscaffolding injections to mend cartilage, prevent osteoarthritis 2
... available in French . , A new ... University reveals that ghrelin - a stomach hormone, acts on ... food related cues and eating for pleasure. This study, ... critical to advance understanding and treating obesity, a condition affecting ...
... There are two ways in which cooperation is the theme ... Mary Anne Alliegro, scientists at the Marine Biological Laboratorys (MBL) ... the papers acknowledgements, where the Alliegros thank those who helped ... State University (LSU) in New Orleans and their lives ...
... N.Y., May 5 bioMETRX Inc., (OTC,Bulletin Board: ... products, today announced that it has closed an ... group of previous angel,accredited investors., "We have ... team.,The company has demonstrated to us the ability ...
Cached Biology News:Hunger hormone: Makes food more attractive 2The cooperative view: New evidence suggests a symbiogenetic origin for the centrosome 2bioMETRX, Inc. Closes Angel Round of Funding 2
(Date:10/30/2014)... (PRWEB) October 30, 2014 2014 ... HCL Industry” is a professional and in-depth research ... provides basic Naltrexone HCL information, including its definition, ... as industry overview. This research covers the international ... as global industry analysis covering macroeconomic environment & ...
(Date:10/30/2014)... 2014 SoundConnect , an ... Office 365 end users the key to turning ... system by adding voice enablement and hybrid audio ... Online, a communication tool that includes presence, instant ... voice, O365 becomes a comprehensive unified communications solution. ...
(Date:10/30/2014)... (PRWEB) October 30, 2014 James Sherley says ... in adult tissue stem cell technology since his days as ... in Philadelphia in the late 1990’s. Sherley founded the ... The company holds all the intellectual property developed in Sherley’s ... at the Massachusetts Institute of Technology (MIT), and more recently ...
(Date:10/30/2014)... 2014 Whitehouse Laboratories has formally announced ... Testing and Package Test Capacity. Responding to growing demands ... dramatic increase in environmental chamber storage space that will ... aging samples to be securely held on site at ... expenditure has already taken place with the recent completion ...
Breaking Biology Technology:Naltrexone HCL Market & Nalbuphine HCL Industry Analysis for Global, China Regions Now at DeepResearchReports.com 2Naltrexone HCL Market & Nalbuphine HCL Industry Analysis for Global, China Regions Now at DeepResearchReports.com 3SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 2SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 3Boston’s Adult Stem Cell Technology Center, LLC Introduces A New Technology for Monitoring Previously Elusive Adult Stem Cells 2Boston’s Adult Stem Cell Technology Center, LLC Introduces A New Technology for Monitoring Previously Elusive Adult Stem Cells 3Boston’s Adult Stem Cell Technology Center, LLC Introduces A New Technology for Monitoring Previously Elusive Adult Stem Cells 4Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 2Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 3
... CRANBURY, N.J., Feb. 18, 2011 Palatin Technologies, Inc. (NYSE ... and webcast on February 24, 2011 at 11:00 a.m. Eastern ... results and plans for its programs under development.   ... Call / Webcast Q2 Fiscal Year 2011 Conference Call-Live ...
... have heard of virtual keyboards controlled by thought, brain-powered ... be downright tiring, a fact that prevents the technology ... among others. Professor Jos del R. Milln and his ... in Switzerland have a solution: engineer the system so ...
... Pharmaceuticals, Inc. (Nasdaq: SVNT ) today announced that ... at the Citi 2011 Global Healthcare Conference on Tuesday, March ... be held at the New York Hilton in New York, ... can be accessed through the investor relations section of the ...
Cached Biology Technology:Taking brain-computer interfaces to the next phase 2
... APAgene kits are designed to rapidly ... using our patented APA Technology. ... at an extraordinarily competitive price. All ... kit. The Locator Kit can be ...
Recommended for supporting the growth of anchorage-dependent cells including human and mouse stromal cells, mesenchymal cells and cell lines....
... This CLS number is a ... easily match Cornings product number. ... please order under the old ... customer service for assistance. ID ...
Extremely high efficiency packaging extracts useful for transfecting our EpiFOS™ or CopyControl™ Fosmids, or any DNA vector with cos sites. A tremendous value when conpared to the competition...
Biology Products: