Navigation Links
A plant which acclimatizes with no exterior influence
Date:11/25/2013

Plants have a love-hate relationship with sunlight. While some wavelengths are indispensable to them for performing photosynthesis, others, such as UV-B, are deleterious. Therefore, plants are equipped to detect these highly toxic rays and mount their defences. A team led by Roman Ulm, Professor at the Faculty of Sciences at the University of Geneva (UNIGE), Switzerland, has generated a transgenic plant which acclimatises constitutively, regardless of the level of UV-B. This plant possesses a constantly active receptor, which endows it with a higher UV resistance, associated with increased flavonoid production, substances which function as a 'sunscreen' and as antioxidants. Flavonoid-rich plants also provide a powerful source of antioxidants for humans. As described in the journal PNAS, this transgenic plant is an excellent model system within the framework of basic research, as well as studies aiming at improving crop plants.

Plants have an arsenal of receptors that enable them to benefit from all components of solar radiation. While the energy of some photons is captured by chlorophyll to produce sugar, other wavelengths regulate essential processes, such as flowering, seed germination, shade avoidance and phototropism. 'Even ultraviolet B rays, despite their harmfulness, are used by plants as an environmental stimulus and influence plant growth and development', points out Roman Ulm, Professor at the UNIGE Department of Botany and Plant Biology.

A maximal survival response

Ultraviolet B rays (UV-B), which account for 0.5% of light energy, are dangerous for living organisms as they lead to the formation of free radicals in cells and damage their DNA. Unable to escape them, plants are forced to find a way to protect themselves. They detect UV-B rays thanks to a receptor knows as UVR8, thus triggering a biochemical chain reaction within the cells and allowing them to mount their defences. These are notably made up of flavonoids, which
'/>"/>

Contact: Roman Ulm
roman.ulm@unige.ch
022-379-3650
Universit de Genve
Source:Eurekalert

Page: 1 2

Related biology news :

1. The future of plant science - a technology perspective
2. The future of plant science a technology perspective
3. Bone marrow transplant arrests symptoms in model of Rett syndrome
4. American Society of Plant Biologists honors early career women scientists
5. Not just for the birds: Man-made noise has ripple effects on plants, too
6. Plant DNA speaks English, identifies new species
7. Human noise has ripple effects on plants
8. New databases harvest a rich bounty of information on crop plant metabolism
9. Plant research reveals new role for gene silencing protein
10. Plants mimic scent of pollinating beetles
11. Stomata development in plants unraveled -- a valuable discovery for environmental research
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/13/2015)... , Jul. 13, 2015 NXT-ID, Inc. ... a biometric authentication company focused on the growing ... filed provisional patent 62/188684 for BEHAVIORAL-DIRECTED ... another new convenient and secure method to make ... innovative payment methods, introduced with its groundbreaking voice-direct ...
(Date:7/9/2015)... Research and Markets( ... "Biometrics for Banking; Market & Technology Analysis, ... their offering. The adoption for banking ... and the forecast is that by 2020 it ... involved in delivering biometric systems to the banking ...
(Date:7/9/2015)... JOSE, Calif. , July 9, 2015 ... the leading developer of human interface solutions, ... technology, the industry,s first fully hardware encapsulated ... Match-in-Sensor secure authentication technology is literally off ... storage and biometric matching within the fingerprint ...
Breaking Biology News(10 mins):NXT-ID Patents Behavior-Directed Payments 2NXT-ID Patents Behavior-Directed Payments 3NXT-ID Patents Behavior-Directed Payments 4Global Banking Biometrics Market 2015-2020 - Market & Technology Analysis, Adoption Strategies and Forecasts 2Global Banking Biometrics Market 2015-2020 - Market & Technology Analysis, Adoption Strategies and Forecasts 3Synaptics Announces World's First Match-in-Sensor Fingerprint Authentication Technology 2Synaptics Announces World's First Match-in-Sensor Fingerprint Authentication Technology 3
... (Jan. 25, 2012) --- A comprehensive investigation of flavanol ... in our understanding of how cocoa flavanols work in ... Through the development of improved analytical methods, this recent ... flavanols, which calls into question the reliability of ...
... College of Agricultural Sciences, The Pennsylvania State University, State College, ... Submissions: 1 March 2012 -- The Society for the ... for presentation at the 45th SSR Annual Meeting to be ... to the following are to be found on the ...
... is available in Spanish . The upsurge ... and affects crops in particular. However, Anabel Robredo, a biologist at ... the case of barley at least, climate change itself is providing ... change is in fact also responsible for a considerable increase in ...
Cached Biology News:Recent study by Mars, Incorporated and partners underscores importance of metabolism in understanding health benefits of cocoa flavanols 2Barley adapts to climate change 2Barley adapts to climate change 3
(Date:8/3/2015)... August 3, 2015 At the ... Hospital waved the shortfall of Jude Liversage,s ... normally for the first time.      (Photo: ... http://photos.prnewswire.com/prnh/20150803/254229 ) The Selective Dorsal Rhizotomy ... him to carry out his wish to kick a ...
(Date:8/3/2015)... (PRWEB) , ... August 03, 2015 , ... Nine field ... Iowa, Illinois and Indiana. Hosted by the Soil Health Partnership , the field ... lasting environmental benefits while potentially increasing farm productivity and income. , Brent Bible has ...
(Date:8/3/2015)... According to a new market ... Asia to Witness Highest Growth ... cell culture market was valued at US$ 586.1 Mn in ... of 29.1% to account for US$ 2,717.6 Mn by ... 3D cell culture refers to a ...
(Date:7/31/2015)... ... July 31, 2015 , ... Global Resorcinol Market 2015-2019 is ... on the global resorcinol industry. The report highlights the various growth prospects and ... and analysis of primary and secondary inputs from the existing players of the ...
Breaking Biology Technology:Cerebral Palsy Operation by The Portland Hospital Allows a Boy to Stand Properly for the First Time 2Cerebral Palsy Operation by The Portland Hospital Allows a Boy to Stand Properly for the First Time 3Soil Health Field Days Kick Off Throughout Midwest 2Soil Health Field Days Kick Off Throughout Midwest 3Global 3D Cell Culture Market Will Reach US$ 2,717.6 Million by 2020: Persistence Market Research 2Global 3D Cell Culture Market Will Reach US$ 2,717.6 Million by 2020: Persistence Market Research 3Global 3D Cell Culture Market Will Reach US$ 2,717.6 Million by 2020: Persistence Market Research 4Resorcinol Market to Grow at 6% CAGR to 2019 Says New Research Report at ReportsnReports.com 2Resorcinol Market to Grow at 6% CAGR to 2019 Says New Research Report at ReportsnReports.com 3Resorcinol Market to Grow at 6% CAGR to 2019 Says New Research Report at ReportsnReports.com 4
... and flat federal funding of biomedical research, five,important actions ... cost --,can yield dramatic results for patients and the ... (NCI) in a commentary published today by "The,Oncologist." , ... , In the article, James ...
... 07/06 2008 08/07, ... millions millions, ... 14, Other EU Countries 9.7 22 17 11.3 ... 3 10 2.0 4 45, SLIT ...
... Jan. 15 Regado Biosciences, Inc., announced today ... to the position of Senior Vice President, Clinical ... immediately. He will report to David J. ... Officer.Dr. Mazzo stated, "Steven has led clinical programs ...
Cached Biology Technology:National Cancer Institute: Battling Cancer and a Recession 2National Cancer Institute: Battling Cancer and a Recession 3Stallergenes: 2008: Sales Up 16% - Excellent Performance - Guidance Exceeded 2Stallergenes: 2008: Sales Up 16% - Excellent Performance - Guidance Exceeded 3Dr. Steven L. Zelenkofske Joins Regado Biosciences as Senior Vice President, Clinical and Medical Affairs and Chief Medical Officer 2Dr. Steven L. Zelenkofske Joins Regado Biosciences as Senior Vice President, Clinical and Medical Affairs and Chief Medical Officer 3
... This reagent is formulated specifically for ... consistently high levels of activity for both ... storage at final dilution. This product ... stability providing the customer a longer shelf ...
Request Info...
NovaScreen offers cell biology, cell culture and molecular biology services for companies who lack a cell culture facility....
... The Human Genetic Cell Bank Service ... is based on Epstein-Barr Virus (EBV) immortalisation ... in the production of lymphoblastoid cell lines ... providing a renewable and expandable source of ...
Biology Products: