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:4/14/2015)... 14, 2015 NXT-ID, Inc. (NASDAQ: NXTD ... focused on the growing mobile commerce market, announces that ... 2015 New York Design Awards under the category  ,Product ... City Design Awards are part of a global multi-disciplinary ... ratings from the marketplace, industry and judging panel. Winners ...
(Date:4/13/2015)... CHICAGO , April 13, 2015  higi, a ... with ways to more fully engage with their communities ... its industry-leading, privacy protected and secure API.  ... API enables the most accessible, affordable, and convenient vehicle ... The API will ...
(Date:4/9/2015)... JOSE, Calif. , April 9, 2015 ... human interface solutions, announced today that it will report ... on Thursday, April 23, 2015, after the close of ... for analysts and investors at 2:00 p.m. PT (5:00 ...   To participate on the live call, ...
Breaking Biology News(10 mins):NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 2NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 3higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 2higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 3Synaptics to Report Third Quarter Results on April 23 2
... from the University of Georgia College of Veterinary ... could open new avenues for treating Ichthyophthirius multifiliis, ... commonly attacks freshwater fish. With the aid ... two apparently symbiotic intracellular bacteria: Bacteroides, which ...
... Duke University Medical Center researchers have figured out how ... better able to resist radiation therapy. And using a drug ... cells, they were able to kill many more glioma cells ... builds off earlier research which showed that cancer stem cells ...
... is good for you, at least if you are a ... Oncology Center have shown that in healthy cells, a bundled ... storehouse, in its proper place. Understanding this cap,s influence on ... to the diagnosis and treatment of diseases such as cancer, ...
Cached Biology News:UGA researchers lead team in discovery involving devastating freshwater fish parasite, 'Ich' 2UGA researchers lead team in discovery involving devastating freshwater fish parasite, 'Ich' 3Discovery makes brain tumor cells more responsive to radiation 2A cell's 'cap' of bundled fibers could yield clues to disease 2
(Date:4/30/2015)... 30, 2015 - Continued ... Company   Shire (LSE: SHP, NASDAQ: ... months to March 31, 2015. Financial ... +9% +13% Total revenues $1,488 million +11% +15% Non ... operating income from continuing operations $475 million +55% Non ...
(Date:4/30/2015)... Available in select spas in ... , Phytomer’s DOUCEUR INTEMPORELLE Restorative Shield Cream provides ... battling the weakening threat of inflammaging, aging directly ... with star ingredient GLYCOSEA, a complex of restructuring ... of soothing minerals and trace elements. GLYCOSEA works ...
(Date:4/30/2015)... Sterlitech is proud to offer Synder ... PY, and PZ Polyacrylonotrile (PAN) membranes , as ... to be ideal for oil removal in wastewater ... process requirements where the presence of oils in ... on industrial wastewater discharge and quality requirements for ...
(Date:4/29/2015)... , April 29, 2015 /PRNewswire/ - BIOREM Inc. (TSX-V: BRM) ("Biorem" or ... ended December 31, 2014. Biorem,s complete fiscal 2014 year-end financial statements and ... HIGHLIGHTS: 2014 , 2013 , 2014 , ... , 19,596 Gross profit 1,326 , 1,703 ... , 1,493 , 3,377 , 4,562 ...
Breaking Biology Technology:Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 2Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 3Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 4Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 5Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 6Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 7Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 8Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 9Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 10Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 11Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 12Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 13Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 14Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 15Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 16Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 17Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 18Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 19Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 20Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 21Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 22Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 23Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 24Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 25Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 26Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 27Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 28Shire Delivers Strong Revenue Growth and Cash Generation; 20% Increase in Non GAAP Earnings per ADS 29Phytomer introduces DOUCEUR INTEMPORELLE Restorative Shield Cream 2Phytomer introduces DOUCEUR INTEMPORELLE Restorative Shield Cream 3Sterlitech Offers New Ultrafiltration Membranes 2Biorem Reports Results for Fourth Quarter 2014 and Year Ended December 31, 2014 2Biorem Reports Results for Fourth Quarter 2014 and Year Ended December 31, 2014 3Biorem Reports Results for Fourth Quarter 2014 and Year Ended December 31, 2014 4
... Pioneers, Thoracic Group, P.A., Deliver Faster Recovery,Fewer ... SOMERSET, N.J., Aug. 5 Thoracic Group, ... thoracic surgical services,and a national leader of ... the successful completion of its 5,000th VATS,surgical ...
... ProMetic Life Sciences Inc.,(TSX:PLI) ("ProMetic") announces today ... fully integrated, U.S.-based, biotechnology company with respect ... biopharmaceutical,products in ProMetic,s Protein Technology Division., ... fees as well as,on-going royalties on sales ...
... Therapeutics (Euronext: AMT), a leader in the field ... release its financial,results for the first half year ... Central European Time (CET). To discuss these results, ... p.m. CET. Netherlands dial in:,0800-949-4517 (toll free); US ...
Cached Biology Technology:Renowned NJ-Based Video Assisted Thoracic Surgery (VATS) Team Completes 5,000th Successful Procedure 2Renowned NJ-Based Video Assisted Thoracic Surgery (VATS) Team Completes 5,000th Successful Procedure 3Prometic reaches understanding for commercialisation of several biopharmaceutical products and strategic investment 2Prometic reaches understanding for commercialisation of several biopharmaceutical products and strategic investment 3