Navigation Links
Student study bolsters case for adding a rare sunflower to the endangered species list
Date:9/25/2007

For several months last spring, the Vanderbilt greenhouse held more members of a rare species of native sunflower than are known to exist in the wild.

This unusual bounty was the result of research being conducted by Jennifer Ellis, a doctoral student in the biological sciences department, working under the supervision of Professor David E. McCauley.

The species is called the giant whorled sunflower, Helianthus verticillatus. It was discovered in 1892 in Tennessee but was thought to be extinct until 1994 when it was rediscovered in Georgia. Today, it is known to exist in only four locations in West Tennessee, Alabama and Georgia. It has been a candidate for listing as a federal endangered species since 1999.

In the last four years Ellis has conducted a series of genetic studies of the whorled sunflower that significantly increase the odds that this gangly plant will make the endangered species list. Once a species is listed then the federal government is empowered to take a number of steps to protect it.

Her study came at a perfect time and gave us answers that we really needed, says Cary Norquist, assistant field supervisor and botanist in the Ecological Services Field Office of the U.S. Fish and Wildlife Service in Jackson, Miss., who has recommended upgrading the sunflowers application for listing from a low to a high level as a result of the new information.

One of the questions that Ellis research answered was whether the whorled sunflower was a distinct species or a hybrid of two common varieties. If it was a hybrid then it would not qualify as an endangered species. Her work definitely confirmed that it is a distinct species, says Norquist.

The other answer that Ellis has provided is a more accurate count of the number of genetic individuals that exist in the wild. According to previous estimates, there were several thousand whorled sunflowers growing in Coosa Valley Prairie in Alabama and Georgia, about 7,000
'/>"/>

Contact: David F. Salisbury
david.salisbury@vanderbilt.edu
615-343-6803
Vanderbilt University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Student scientists create living bacterial photographs
2. Students discover 11,000 year old remains of Irish Elk
3. APS lecturer shows rare video of teacher-student immune cell interactions in live animal
4. Students invent protective pouch to enhance cell therapy
5. College students who pull all-nighters and get no sleep more likely to have a lower GPA
6. Bioartificial kidney under study at MCG
7. Novel Asthma Study Shows Multiple Genetic Input Required; Single-gene Solution Shot Down
8. W.M. Keck Foundation funds study of friendly microbes
9. Yellowstone microbes fueled by hydrogen, according to U. of Colorado study
10. Emory Study Tests Bone Marrow Stem Cells to Improve Circulation in Legs
11. UCLA Study Shows One-Third of Drug Ads in Medical Journals Do Not Contain References Supporting Medical Claims
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/16/2014)... 2014)More than $100 trillion in cumulative public and ... dioxide (CO2)a 40 percent reduction of urban passenger ... world expands public transportation, walking and cycling in ... the University of California, Davis, and the Institute ... Further, an estimated 1.4 million early deaths could ...
(Date:9/16/2014)... biology taught us that we inherit certain traits from ... could change how these genes play out by taking ... That,s exactly what a team of researchers at ... through their research of epigenetics research. , Epigenetics ... modifying DNA and histone proteins, which prevent permanent mutations ...
(Date:9/16/2014)... dinosaurs 66 million years ago decimated the evergreens among ... their deciduous peers, according to a study led by ... PLOS Biology . , Applying biomechanical formulas ... of angiosperms flowering plants excluding conifers ... a diverse plant community thriving during a 2.2 million-year ...
Breaking Biology News(10 mins):Global shift away from cars saves US$100 trillion, eliminates 1,700 MT of CO2 pollution 2Global shift away from cars saves US$100 trillion, eliminates 1,700 MT of CO2 pollution 3Global shift away from cars saves US$100 trillion, eliminates 1,700 MT of CO2 pollution 4Global shift away from cars saves US$100 trillion, eliminates 1,700 MT of CO2 pollution 5Epigenetic drugs: A hope to treat cancer resistance and reduce cancer relapse? 2Epigenetic drugs: A hope to treat cancer resistance and reduce cancer relapse? 3Meteorite that doomed dinosaurs remade forests 2Meteorite that doomed dinosaurs remade forests 3Meteorite that doomed dinosaurs remade forests 4
... known as 'tandem running' to lead another ant from the ... control both the speed and course of the run. It ... 'formal' teaching has been recognised in any non-human animal. , ... information, rather than the constraint of brain size, that has ...
... Neil Ferguson, and Geoff Garnett (of Imperial College London) ... not be controlled through antiretroviral drugs alone, even if ... article in the open-access international medical journal PLoS Medicine, ... their communities about safe sex, access to drugs is ...
... Hopkins researchers have discovered a gene in fruit flies ... bright light. The study, published in the April 4 ... sensory perception in mammals. , In teasing apart the ... studied a gene they dubbed "Lazaro" that is expressed ...
Cached Biology News:First demonstration of 'teaching' in non-human animals 2Access to antiretrovirals unlikely to reduce HIV infection rates 2New gene reduces retinal degeneration in fruit flies 2
(Date:9/18/2014)... for computing may have just taken an encouraging step ... led by chemist Stephen O,Brien have discovered new complex ... Combining both properties is very exciting scientifically for the ... devices that might ultimately be designed, in logic circuits ... material, however, has proved difficult until now. , Using ...
(Date:9/17/2014)... INCLINE VILLAGE, Nev. , Sept. 17, 2014  PDL ... notified by its independent registered accounting firm, Ernst & Young ... The resignation was confirmed in a letter delivered to the ... 8-K filed on September 16, 2014.  PDL ... "We have received a number of inquiries on ...
(Date:9/17/2014)... N.J. , Sept. 17, 2014 Aethlon ... therapeutic devices to address infectious disease, cancer and other ... (ESI), disclosed today that each company will be presenting ... On September 18 th , Sahil Shah ... "Exosomes: A Multiplexed Platform for Clinical Management." ...
(Date:9/17/2014)... -- BioClinica®, Inc., a leading provider of outsourced clinical ... its experts are speaking at the 20th Annual ... held September 28 to October 1 in ... the innovative Compass technology, a risk-based monitoring ... earlier this year, is up for the Technology ...
Breaking Biology Technology:Oxides discovered by CCNY team could advance memory devices 2PDL BioPharma Issues Statement on Resignation of Ernst and Young as Corporate Auditors 2PDL BioPharma Issues Statement on Resignation of Ernst and Young as Corporate Auditors 3Aethlon Medical and Exosome Sciences To Present at the Exosomes & SingleCell Analysis Summit 2Aethlon Medical and Exosome Sciences To Present at the Exosomes & SingleCell Analysis Summit 3BioClinica to Present at 20th Annual SCDM Conference 2BioClinica to Present at 20th Annual SCDM Conference 3
... on its recent analysis of new products within the ... the 2012 North American Frost & Sullivan Award for ... a "gold standard" polymerase chain reaction (PCR) instrument. The ... amplification, and detection, all in a multiplexed, automated, and ...
... Inc. (NYSE Amex: BONE ), a leader in ... for medical applications, today announced its financial results for the ... Fourth Quarter 2011 Highlights: Revenue ... for the fourth quarter of 2010. Operating loss decreased ...
... March 21, 2012 When deciding between the ... the upcoming and existing research programs prove highly ... introduces the Life Sciences Content: Pharmaceuticals, Biotechnology, ... to 2012 compendium.  This resource includes Frost ...
Cached Biology Technology:Frost & Sullivan Recognizes iCubate for Developing the New Gold Standard Instrument in the PCR Market 2Frost & Sullivan Recognizes iCubate for Developing the New Gold Standard Instrument in the PCR Market 3Frost & Sullivan Recognizes iCubate for Developing the New Gold Standard Instrument in the PCR Market 4Bacterin Announces Record 2011 Revenue of $30.1 Million; Up 96% Year-over-Year 2Bacterin Announces Record 2011 Revenue of $30.1 Million; Up 96% Year-over-Year 3Bacterin Announces Record 2011 Revenue of $30.1 Million; Up 96% Year-over-Year 4Bacterin Announces Record 2011 Revenue of $30.1 Million; Up 96% Year-over-Year 5Bacterin Announces Record 2011 Revenue of $30.1 Million; Up 96% Year-over-Year 6Bacterin Announces Record 2011 Revenue of $30.1 Million; Up 96% Year-over-Year 7Bacterin Announces Record 2011 Revenue of $30.1 Million; Up 96% Year-over-Year 8Bacterin Announces Record 2011 Revenue of $30.1 Million; Up 96% Year-over-Year 9Bacterin Announces Record 2011 Revenue of $30.1 Million; Up 96% Year-over-Year 10Frost & Sullivan Announces Cutting Edge Life Sciences Research on the Horizon 2Frost & Sullivan Announces Cutting Edge Life Sciences Research on the Horizon 3
... is essential for hunting and analyzing ... such as EST sequencing projects, microarrays, ... are not well suited for the ... TRIMMER kit, though, is specially developed ...
... SNP loci identification through targeting resequencing. ... design, intensive assay validation/optimization, high throughput ... or customer-supplied samples and sequence alignment ... for rapid and highly accurate identification ...
... Application: The Panorama Mouse/Rat Tissue Extract ... protein expression in various tissue extracts. The ... is detected using a protein specific antibody. ... binding is visualized by a sensitive chemiluminescent ...
... 6 delivers enhanced statistics and statistical ... quality improvement managers. As an accepted ... 6 simplifies statistics for novice users ... by experts. It offers a powerful ...
Biology Products: