Navigation Links
Scientists unveil a molecular mechanism that controls plant growth and development
Date:1/30/2014

Barcelona, Thursday 30 January, 2014.- A joint study published in Cell by the teams headed by Miquel Coll at the Institute for Research in Biomedicine (IRB Barcelona) and the Institute of Molecular Biology of CSIC, both in Barcelona, and Dolf Weijers at the University of Wageningen, in the Netherlands, unravels the mystery behind how the plant hormones called auxins activate multiple vital plant functions through various gene transcription factors.

Auxins are plant hormones that control growth and development, that is to say, they determine the size and structure of the plant. Among their many activities, auxins favor cell growth, root initiation, flowering, fruit setting and delay ripening. Auxins have practical applications and are used in agriculture to produce seedless fruit, to prevent fruit drop, and to promote rooting, in addition to being used as herbicides. The biomedical applications of these hormones as anti-tumor agents and to facilitate somatic cell reprogramming (the cells that form tissues) to stem cells are also being investigated.

The effects of auxins in plants was first observed by Darwin in 1881, and since then this hormone has been the focus of many studies. However, although it was known how and where auxin is synthesized in the plant, how it is transported, and the receptors on which it acts, it was unclear how a hormone could trigger such diverse processes.

At the molecular level, the hormone serves to unblock a transcription factor, a DNA-binding protein, which in turn activates or represses a specific group of genes. Some plants have more than 20 distinct auxin-regulated transcription factors. They are called ARFs (Auxin Response Factors) and control the expression of numerous plant genes in function of the task to be undertaken, that is to say, cell growth, flowering, root initiation, leaf growth etc.

Using the Synchrotron Alba, near Barcelona, and the European Synchrotron Radiation Facil
'/>"/>

Contact: Sònia Armengou
armengou@irbbarcelona.org
34-934-037-255
Institute for Research in Biomedicine (IRB Barcelona)
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Scientists develop an engineered cardiac tissue model to study the human heart
2. Scientists discover that thyroid cancer cells become less aggressive in outer space
3. Scientists find genetic mechanism linking aging to specific diets
4. University of Hawaii scientists make a big splash
5. Plant scientists unravel a molecular switch to stimulate leaf growth
6. Scientists reveal why life got big in the Earths early oceans
7. Johns Hopkins scientists identify a key to bodys use of free calcium
8. Scripps Florida scientists offer new insight into neuron changes brought about by aging
9. Spider silk ties scientists up in knots
10. York scientists investigate the fiber of our being
11. Scientists warn: Conservation work in zoos is too random
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists unveil a molecular mechanism that controls plant growth and development
(Date:4/15/2014)... New research published in the March/April 2014 issue ... Nutrition shows whey protein, either as a supplement ... weight-loss or weight-maintenance diet, may provide men and women ... included 14 randomized controlled trials with a total of ... studies that used whey protein to replace calories in ...
(Date:4/14/2014)... the Puerto Rican climate over the past three decades ... frog, the territory,s national animal. UCLA biologists have found ... their mating call has also become shorter and higher ... distinguished professor of integrative biology and physiology and of ... physics researcher, the study examined 170 male coqui frogs ...
(Date:4/14/2014)... chamber bound for the International Space Station inside ... may help expand in-orbit food production capabilities in ... they don,t take for granted, fresh food. , ... the in-orbit function and performance of a new ... plant "pillows." The investigation will focus on the ...
Breaking Biology News(10 mins):New meta-analysis builds on the power of whey protein for improved body composition 2New meta-analysis builds on the power of whey protein for improved body composition 3Climate change a likely culprit in coqui frog's altered calls, say UCLA biologists 2Veggie will expand fresh food production on space station 2
... (Aurora, CO)--In an article published online this week in ... Center team in partnership with universities in China and ... carcinoma, the most prevalent type of bladder cancer. ... cells different than their healthy neighbors may allow early ...
... Bethesda, MD FASEB MARC Program has announced the ... Grant Writing Seminar Program in Virginia Beach, VA from ... support the participation, grant writing skill development and leadership ... professors from underrepresented groups. This year ...
... from the University of Valladolid (Spain) has analysed 40 brands ... than pale and non-alcoholic beers. Iron is essential to the ... give these beverages stability and flavour. According to the ... 40 types of beers from all 5 continents, dark beers ...
Cached Biology News:University of Colorado Cancer Center genetically sequences most common bladder cancer 2FASEB MARC program announces the travel award recipients for the 2011 Leadership Development and Grant Writing Seminar for graduate students, postdoctoral fellows and new assistant professors 2Dark beer has more iron than pale beer 2
(Date:1/15/2014)... January 15, 2014 This webinar ... on nonclinical and clinical safety assessment in biosimilars. ... guide a path for biosimilar drug development, however ... of biosimilarity with regards to quality, safety and ... of biosimilar drug development and registration, development strategies ...
(Date:1/15/2014)... NC (PRWEB) January 15, 2014 ... an enhancement to its Online Web Portal for Life ... now have the ability to specify the subject matter ... nearly 50 life science sub-domains. This will help reduce ... and scientific fields, and decrease the likelihood of error. ...
(Date:1/14/2014)... Doylestown, PA (PRWEB) January 14, 2014 ... – 11 p.m. , Location: Warrington Country Club, 1360 ... Hepatitis B Foundation, the only national nonprofit organization solely ... improving the quality of life for those affected worldwide, ... 11 at Warrington Country Club in Warrington, Pa. ...
(Date:1/14/2014)... York, NY (PRWEB) January 14, 2014 ... initiated coverage of Alliqua, Inc. (OTCQB: ALQA). Alliqua ... and marketing proprietary products to serve the wound ... , In late 2012, Alliqua was restructured ... launched the company’s new strategy to become a ...
Breaking Biology Technology:Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2DTS Improves Efficiency for Life Science Document Translations 2Hepatitis B Foundation to Host Annual Crystal Ball Gala 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3
... April 17 Spherix Incorporated (Nasdaq: SPEX ), ... regulatory consulting services to food, supplement, biotechnology and pharmaceutical companies, ... Cox, Jr. Mr. Cox passed away on Monday, April ... Member since 2004, was elected Chairman of the Board in ...
... global chemistry-driven contract research organization, announced today that its ... of the leading CRO companies conducting high quality Phase ... will continue to operate separately under the business name ... the acquisition ChemDiv had worked with Prudentas, who established ...
... at Boulder team has developed a new method of ... like computer chips and solar cells by using two ... the nanoengineering field, one color of light inscribes a ... McLeod of the electrical, computer and energy engineering department. ...
Cached Biology Technology:Spherix Incorporated Announces the Death of A. Paul Cox, Jr., Chairman of the Board 2Spherix Incorporated Announces the Death of A. Paul Cox, Jr., Chairman of the Board 3ChemDiv Group Acquires Prudentas Through ChemRar High Tech Center 2ChemDiv Group Acquires Prudentas Through ChemRar High Tech Center 3Novel CU-Boulder technique shrinks size of nanotechnology circuitry 2
Mol wt: average mol wt16,951.27 Da by calculation...
A set of five peptides which can be used to calibrate a Matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) or Electrospray Ionization (ESI) mass spectrometer....
... number is a new product ... Cornings product number. If showing ... under the old Sigma-Aldrich number ... for assistance. ID clarifier: filling ...
... CLS number is a new ... match Cornings product number. If ... order under the old Sigma-Aldrich ... service for assistance. ID clarifier: ...
Biology Products: