Navigation Links
Scientists map one of biology's critical light-sensing structures

For plants, the ability to accurately sense light governs everything from seed germination, photosynthesis and pigmentation to patterns of growth and flowering.

Now, for the first time, scientists have obtained a detailed map of one of biology's most important light detectors, a protein found in many species across life's plant, fungal, and bacterial kingdoms. By resolving the three-dimensional structure of the protein known as phytochrome, scientists can now tease out the secrets of how plants, in particular, react to light, opening the door for a host of manipulations that could have sweeping implications for agriculture.

Writing in the Nov. 17, 2005 issue of the journal Nature, a team of scientists from the University of Wisconsin-Madison report that they have obtained the crystal structure of a phytochrome from a bacterium, the first such light-gathering structure depicted for all of biology. The structure of the bacterial phytochrome, according to the report, suggests its architecture first arose a billion or so years ago in a common ancestor and is shared among not only bacteria, but also by plants and fungi.

"This is probably the most important light regulator in agriculture," says Richard Vierstra, a UW-Madison plant geneticist and one of two collaborating senior authors of the Nature paper. "It tells plants when to germinate. It tells them where to grow to absorb the most light and to avoid competition. It tells them when to flower. It tells them when to die at the end of the growing season."

The accomplishment of the Wisconsin researchers, including first author graduate student Jeremiah Wagner, caps a 30-year quest by biologists to drill down to the inner workings of how plants, fungi and bacteria use light to guide their development. It will likely spur a rush by scientists to capitalize on the new knowledge and may one day lead to such things as plants whose growth, flowering and death can be precisely manipulated.

<
'"/>

Source:University of Wisconsin-Madison


Page: 1 2 3

Related biology news :

1. Scientists ID molecular switch in liver that triggers harmful effects of saturated and trans fats
2. Scientists Replicate Hepatitis C Virus in Laboratory
3. Scientists detect probable genetic cause of some Parkinsons disease cases
4. Scientists find missing enzyme for tuberculosis iron scavenging pathway
5. Scientists seek answers on what activates deadly anthrax spores
6. Yale Scientists Find MicroRNA Regulates Ras Cancer Gene
7. Scientists collaborate to assess health of global environment
8. Scientists decipher genome of fungus that can cause life-threatening infections
9. Scientists discover the cellular roots of graying hair
10. Scientists rid stem cell culture of key animal cells
11. Scientists develop new color-coded test for protein folding
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Scientists map one biology critical light sensing structures

(Date:7/9/2014)... some shark species may be able to cope with the ... temperatures. , The Arctic today is best known for its ... that. Roughly 53 to 38 million years ago during what ... similar to a huge temperate forest with brackish water, home ... hippo-like creatures, crocodiles and giant tortoises. Much of what is ...
(Date:7/9/2014)... The U.S. may be on the verge of an economy ... burns cleaner than coal and is undergoing a production boom. ... globally, but recent research is casting serious doubts over just ... Chemical & Engineering News (C&EN), the weekly news magazine ... Johnson, a senior correspondent at C&EN, explains that when burned ...
(Date:7/9/2014)... can alleviate the symptoms of Alzheimer,s disease, ... and effectively scavenge amyloid beta peptide in ... reduced and eliminated Aβ deposition in an ... significantly improved behavioral and cognitive impairment. Dr. ... Hospital of China Medical University, China immunized ...
Breaking Biology News(10 mins):Shark teeth analysis provides detailed new look at Arctic climate change 2Shark teeth analysis provides detailed new look at Arctic climate change 3
... -- The Society of Environmental Toxicology and Chemistry will present ... its 33rd Annual Meeting, November 11 at the Long Beach ... the Rosenstiel School of Marine & Atmospheric Science of the ... to the understanding of fate and effects of metals in ...
... Four young scientists have received postdoctoral fellowships from the ... program, they conduct research with the eventual aim of ... receiving mentorship from a faculty member at their home ... seven research teams. This allows them to interact with ...
... 2012  Verinata Health, Inc., a privately-held company dedicated to ... at the 62 nd Annual Meeting of the ... being held in San Francisco, California. (Logo: ... offers pregnant women access to a blood test that ...
Cached Biology News:SETAC announces Chris Lee Award for metals research winner, Kevin Brix 2Space research institute awards postdoctoral fellowships to 4 scientists 2Verinata Health Announces New Findings At The American Society Of Human Genetics 2
(Date:1/14/2014)... pet owners drew up their lists of New Year,s resolutions for ... of my furry companion." Nowadays there are pet salons, dog and ... take the little canine or feline darlings along wherever mommy or ... pricey toys at the pet store. But anyone who has ever ...
(Date:1/14/2014)... 14, 2014 iLab Solutions, the leader in ... new Director of Product Strategy. In this role, Michelle will ... sub-teams to guide in the development of iLab products. Her ... maximum possible benefit to the scientific community by offering the ...
(Date:1/14/2014)... , Jan. 14, 2014   Kinaxis ®, provider of ... and sales and operations planning ( S&OP ) service, is ... Summit , which will be held at the Hilton San ... join Kinaxis customer Elisabeth Kaszas , Director of Supply ...
(Date:1/14/2014)... January 14, 2014 Independent publisher Bitingduck ... and Montreal, Canada, has big ideas for 2014 in ... press's goals are to produce high-quality, low-cost, DRM-free ebooks ... local businesses. , The first major development will ...
Breaking Biology Technology:New Year's Resolution: Give Pets the Gift of Top-Notch Health Care 2iLab Solutions Announces Michelle Detwiler as the New Director of Product Strategy 2Event Alert: Kinaxis Customer to Present at the Biomanufacturing Summit "Supply Chain: Improving Network Effectiveness" 2Bitingduck Press Looks Forward to 2014 With Multimedia E-books 2
... March 20, 2012 /PRNewswire-iReach/ -- Systems Alliance, ... build, assess and optimize online properties, today announced it ... The Living Legacy Foundation . The non-profit organization facilitates ... for transplantation and research in Maryland with the exception ...
... FULTON, Miss., March 20, 2012  Frank A. Critz, M.D., founder ... honored with a hometown hero,s welcome this April when he ... prostate cancer survivors.  The event will be April 14, 2012 ... Street in Fulton from noon until 3 p.m., and lunch ...
... 2012 GeoVax Labs, Inc. (OTCQB/OTCBB: GOVX), an ... fight Human Immunodeficiency Virus (HIV) infections, announced today ... certain institutional investors, pursuant to which the Company ... A convertible preferred stock at an aggregate purchase ...
Cached Biology Technology:Systems Alliance Launches Redesigned Website for The Living Legacy Foundation of Maryland 2Systems Alliance Launches Redesigned Website for The Living Legacy Foundation of Maryland 3Radiotherapy Clinics of Georgia's Founder Returns Home to Celebrate Cancer Survivors and Receive Lifetime Achievement Award 2GeoVax Announces Private Placement of $2.2 Million 2GeoVax Announces Private Placement of $2.2 Million 3GeoVax Announces Private Placement of $2.2 Million 4
... Library Panels were designed for full-length gene ... PCRs to identify the desired cDNA clone. ... a 96-well "Master Plate," where each well ... identified the positive well(s) by gel electrophoresis ...
... Multipeptide Kit, designed for use with ... variety of amyloid peptides more straightforward ... Clinical neuroscience proteomics applications - Monitor ... Correlate beta-amyloid peptide levels with disease ...
Formula variant: With the macro- and micronutrients as described by Lloyd and McCown (1981). Preparation Quantity Equivalency: Formulated to contain 2.3 grams of powder per liter of medium. Physical ...
... Biosystems and MDS Sciex present the ... high performance hybrid triple quadrupole/linear ion ... discovery, drug development or proteomics researcher. ... from the leaders in mass spectrometry ...
Biology Products: