Navigation Links
Challenges remain in reintroducing American chestnut
Date:9/5/2007

ber of sprouts persist from old tree roots, which grow for years before becoming reinfected. These sprouts comprise a level of genetic diversity that is vital for widespread reintroduction and need to be included before they die out altogether, Jacobs said.

One of the biggest obstacles is the host of laws and regulations that now govern the forests - or former forests - in the chestnut's original range, Jacobs said. In many public lands where the chestnut used to thrive, such as the Great Smoky Mountains National Park, human interference is strongly discouraged and often illegal. But Jacobs said some interference and harvesting will be necessary to reintroduce the chestnut, calling for a unified and proactive approach and exceptions to certain laws that govern public lands.

Jacobs said that some might consider the blight-resistant chestnut hybrid as a cultivar or new species, which could hamper reintroduction to public lands. However, he stressed that just because the tree is crossed with the Asian chestnut to attain resistance, its physical traits and appearance should be indistinguishable from a pure American chestnut.

"This is as close to the real thing as it gets," Jacobs said. "Any closer and it wouldn't be blight-resistant."

Further breeding should produce even higher quality trees, he said.

In the early 1900s, the blight hit so fast that researchers didn't have time to study the American chestnut's ecology or interactions with its environment, Jacobs said. Thus, more research is needed to better understand the species and determine how to best reintroduce it into existing forests.

Jacobs recently conducted a study in Wisconsin where the fungus hadn't yet spread, demonstrating that the chestnut grew extremely fast, outcompeting native black walnut and red oak trees. The average chestnut grew to 23 feet by age 8.

"This confirmed what we had thought," Jacobs said. "The American chestnut is very fast-
'/>"/>

Contact: Douglas M. Main
dmain@purdue.edu
765-496-2050
Purdue University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Changing ecosystems throw scientists mega-challenges
2. Measurement Challenges In Detecting Cancer Biomarkers
3. Grand Challenges in Global Health initiative funds Yale project
4. Report focuses on challenges to unlocking future promise of vaccines
5. The brain, traffic and nano-circuits -- e-Science takes on major challenges
6. Study challenges myth that sex late in pregnancy hastens birth
7. AIDS study challenges conventional treatment guidelines for HIV patients
8. Chinas environmental challenges
9. New study challenges critical period in childhood vision development
10. Paper challenges 1491 Amazonian population theories
11. The quest for an effective HIV vaccine presents new possibilities, challenges
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/20/2014)... Multiple fires are visible in in this image of ... Many of these were most likely intentionally set in ... of a forest or stand of trees where the ... of deforestation include conversion of forestland to farms, ranches, ... the dark green of the Amazon Rainforest in the ...
(Date:8/20/2014)... who have suffered concussions ready to return to action? ... high school athletes who head back on the field ... regression in their abilities to simultaneously walk and do ... changes in their balance and/or altered walking speed, was ... 12 had returned to activity in less than a ...
(Date:8/20/2014)... DENVER (August 20, 2014) Women who are poor ... to infants with elevated levels of the stress hormone, ... later in life, according to a new research from ... online recently in the American Journal of Human ... infants and relate it directly to the socioeconomic status ...
Breaking Biology News(10 mins):Recovery reversal seen in Oregon study of returning concussed athletes 2Recovery reversal seen in Oregon study of returning concussed athletes 3CU Denver researcher shows economic disparities impact infant health 2
... found that new disease pathways involving more than one ... rare genetic disorder in which fatty substances called glycosphingolipids ... pain, and increased risk of cancer and Parkinson,s disease. ... expensive and more effective ways to treat the disorder, ...
... release is available in French . , Scientists ... McGill University have discovered that our brains have the ability ... specially-coded sounds, without any visual or tactile input. Not only ... the brain and how it perceives the world around us, ...
... Inhaling nitric oxide appears to safely and effectively ... researchers report., A study of 18 patients in Atlanta, ... oxide for four hours had better pain control than ... C. Alvin Head, chairman of the Department of Anesthesiology ...
Cached Biology News:Cheaper, more effective treatment of type 1 Gaucher disease possible 2See no shape, touch no shape, hear a shape? 2Inhaling nitric oxide eases pain crises in sickle cell patients 2
(Date:8/20/2014)... Aug. 20, 2014  Decision Resources Group finds that the vascular ... Russia , India and ... 2013, roughly equal to the size of the United ... market will experience much faster growth as a result of strong ... Other key findings from Decision Resources Group,s coverage of the ...
(Date:8/20/2014)... Stimulating nerves in your ear could improve the health ... at the University of Leeds used a standard TENS ... apply electrical pulses to the tragus, the small raised ... front of the ear canal. , The stimulation changed ... by reducing the nervous signals that can drive failing ...
(Date:8/19/2014)... Research and Markets  has announced the addition of ... Report" report to their offering. This report ... US$ Thousands by the following Product Segments: Media, Sera, and Reagents. ... Canada , Japan , ... Latin America . Annual estimates and forecasts are provided ...
(Date:8/19/2014)... Lenexa, KS (PRWEB) August 19, 2014 ... to offer fast and cost-effective metabolite production from ... and proprietary chemistry platform, the technology enables convenient ... issues. According to XenoTech’s Vice President of ... metabolite synthesis for assessing clinical risk can be ...
Breaking Biology Technology:BRIC Vascular Access Device Market Valued at $1.6 Billion in 2013, Similar to the U.S. Market 2BRIC Vascular Access Device Market Valued at $1.6 Billion in 2013, Similar to the U.S. Market 3'Tickling' your ear could be good for your heart 2Global Cell and Tissue Culture Supplies - Strategic Business Report 2014 2Beyond Metabolite Identification, Testable Quantities Now Offered by XenoTech 2Beyond Metabolite Identification, Testable Quantities Now Offered by XenoTech 3
... Sept. 15 Epeius Biotechnologies,Corporation today announced that ... has been highlighted in a recent NEWS article,published ... (JNCI, Sept. 9,2008). The article, authored by Vickie ... medicine that may succeed where small,molecules and proteins ...
... Enobia Pharma, an emerging biotech,company focused ... presented pre-clinical data demonstrating that its enzyme,replacement ... bones that,have already been severely weakened by ... with Enobia,s product ENB-0040, significantly,increases survival and ...
... Offers Industry Dialogue, Commentary and How-To, ... Collaboration, PALO ALTO, Calif., Sept. 15 ... strategist and communicator, has,launched a new website, ... and communicators can share thinking, gain insights and,connect ...
Cached Biology Technology:Epeius Biotechnologies' Lead Product, Rexin-G for Metastatic Cancer, Aptly Highlighted by National Cancer Institute Journal 2Enobia Pharma Presents PreClinical Data Showing ENB-0040 Significantly Improved Survival and Healed Skeletal Manifestations of Severe Hypophosphatasia in Mice 2Enobia Pharma Presents PreClinical Data Showing ENB-0040 Significantly Improved Survival and Healed Skeletal Manifestations of Severe Hypophosphatasia in Mice 3
...
RABBIT ANTI HUMAN ALPHA-2-ANTIPLASMIN...
... mix (Thermoprime Plus DNA Polymerase with a ... times higher fidelity than standard Taq DNA ... DNA polymerase, Amplifies DNA templates >20kb, Concentration: ... PCR for cloning and mutagenesis We are ...
... EnzChek Lysozyme Assay Kit (E-22013) provides,researchers ... levels of lysozyme,activity in solution. This ... to 20 U/mL (Figure 1). The ... cell,walls, which are labeled to such ...
Biology Products: