Navigation Links
UT Knoxville professor finds unexpected key to flowering plants' diversity
Date:7/28/2008

nt on to evolve into the diverse array of flowering plants that exist today.

That's what brought Williams to a harness in the rainforest of Australia. To confirm what he found in the data analysis, he pollinated -- by hand -- an ancient vine known as Austrobaileya that grows high in the canopy. He chose that plant, along with another plant found only on the Pacific island of New Caledonia and a water lily that grows high in the Colorado mountains, to test because they developed as species early in flowering plants' evolution.

He found that, when compared to more recently evolved species of angiosperms, the older plants grew shorter pollen tubes and took longer to do so than more diverse modern species. According to Williams, this indicates that these pollen tubes likely played a previously unknown role in spurring the evolution of the roughly 250,000 species of flowering plants we see today.

"As these plants gained the ability to grow pollen tubes faster and over longer distances," said Williams, "It gave them the ability to develop the much larger and more complex flowers as well as deeper ovaries with more seeds -- that is to say, larger fruits -- that we see around us today."


'/>"/>

Contact: Jay Mayfield
jay.mayfield@tennessee.edu
865-974-9409
University of Tennessee at Knoxville
Source:Eurekalert  

Page: 1 2

Related biology news :

1. National Institutes of Health award Williams professor $217,710 research grant
2. NJIT architect professor advocates best-building practices for high wind regions
3. Professor Brian Greenwood awarded first Hideyo Noguchi Africa Award
4. McMaster University engineering professor receives Humboldt Research Award
5. USF professor gives historical look at physiology and WWII air war
6. NYU dental professor discovers biological clock linking tooth growth to other metabolic processes
7. MIT professor to discuss future of biofuels
8. ASU professor helps solve mystery of glassy water
9. Professors video series explains all facets of Earth
10. JDRF awards University of Copenhagen professor with grant to conduct innovative diabetes research
11. TAU professor finds global warming is melting soft coral
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
UT Knoxville professor finds unexpected key to flowering plants' diversity
(Date:9/30/2014)... England Journal of Medicine reports positive results of ... against the subset of lung cancer marked by rearrangement ... 50 patients with advanced non-small cell lung cancer testing ... 72 percent, with 3 complete responses and 33 partial ... for the disease to resume its growth after being ...
(Date:9/30/2014)... German . ... foods in the world. Because they grow underground, people use ... smell of truffles is not only of interest to gourmets. ... of the Goethe University Frankfurt have discovered that the smell ... are trapped inside truffle fruiting bodies. , White truffles from ...
(Date:9/30/2014)... it comes to using marijuana, new research, involving mice ... Journal of Leukocyte Biology , suggests ... that you should. That,s because a team of Italian ... do serious long-term damage to the immune system. This ... diseases, such as multiple sclerosis, inflammatory bowel disease and ...
Breaking Biology News(10 mins):NEJM: Crizotinib effective in Phase 1 trial against ROS1 lung cancer 2On the trail of the truffle flavor 2Adolescent exposure to thc may cause immune systems to go up in smoke 2
... in German . , Jena/Leipzig. For ... extended cultivation of energy crops. Scientists have now developed ... comparing the effectiveness of strategies for the reduction of ... leads to problems to biological diversity in agrarian regions. ...
... 2012  The Intellectual Property & Science division of ... information for businesses and professionals, today announced the ... the life sciences market, a new initiative aimed ... information through application-specific solutions developed with third-party partners. ...
... With more than 1.7 million people sustaining a traumatic ... to limit inflammation and subsequent damage is critical. Approximately ... leaving 85,000 with long-term disabilities and taking the lives ... live with disabilities caused by traumatic brain injuries, often ...
Cached Biology News:How the ecological risks of extended bioenergy production can be reduced 2How the ecological risks of extended bioenergy production can be reduced 3Thomson Reuters Launches Life Sciences Partner Ecosystem to Drive Collaborative R&D Drug Processes 2Estrogen hormone reveals protective ability after traumatic brain injury 2
(Date:10/1/2014)... METTLER TOLEDO’s newly improved XS balance line includes ... as a dual range microbalance . As a ... pan delivers results up to twice as fast, even ... details mean users no longer need to suffer the ... front of the balance. Barbara Bienlein, medical specialist and ...
(Date:10/1/2014)... (PRWEB) October 01, 2014 Weighing ... quality of the final product. However, while the ... regulatory frameworks such as Good Manufacturing Practices (GMP) ... responsibility of the manufacturer to interpret these guidelines ... weighing performance quality. METTLER TOLEDO experts have created ...
(Date:10/1/2014)... As the world takes its first steps into ... this century would mark the beginning of a new era ... The fact that the world is experiencing a rapid rise ... community. Almost half of these chronic conditions are due to ... medical care and intervention. While the world is experiencing a ...
(Date:10/1/2014)... In response to its clients’ evolving ... training and consumer engagement challenges, digital agency ... to turn their clients’ visions into reality. New ... app creations, are now featured on its website ... Toyota, StudioPMG created a robust cross-platform mobile application ...
Breaking Biology Technology:METTLER TOLEDO’s XS Balance Line Delivers Performance and Ergonomics To Safeguard Health in the Workplace 2METTLER TOLEDO’s XS Balance Line Delivers Performance and Ergonomics To Safeguard Health in the Workplace 3Comply with Weighing-Related Regulations in Pharma Manufacturing 2Fighting Mortality and Morbidity of Chronic Health Disorders during Open Access Week 2Fighting Mortality and Morbidity of Chronic Health Disorders during Open Access Week 3Digital Agency Studio PMG Launches New Case Studies on Website 2
... from North Carolina State University shows that size plays ... hollow nanoparticles. The researchers focused on nickel nanoparticles, which ... applications in fields as diverse as energy production and ... potential for nanofabrication the creation of materials that ...
... push the boundaries of nanoscience, the Kavli Institute at Cornell ... new ideas, but a proving ground to aggressively push the ... named Paul McEuen, the Goldwin Smith Professor of Physics, as ... engineering physics, will serve as co-director. The institute ...
... Choi of the Department of Mechanical Engineering at Stevens ... the 2010 Young Investigator Program (YIP) award by the ... scientists and engineers who show exceptional promise for creative ... young outstanding scientists and engineers," said ONR,s Director of ...
Cached Biology Technology:Study shows that size affects structure of hollow nanoparticles 2Under new leadership, Kavli Institute at Cornell evolves from a think tank to a proving ground 2Dr. Chang-Hwan Choi honored with prestigious Young Investigator Award 2Dr. Chang-Hwan Choi honored with prestigious Young Investigator Award 3
...
...
... Comments: Ab-1 stains tumor cells of embryonal ... type of germ cell tumors like seminoma. Glandular ... are positive. Luminal and endocrine cells of stomach ... breast are also positive. Epitope: Carbohydrate ...
TP-1 (NDOG1)...
Biology Products: