Navigation Links
University of Tennessee scientist: Flowers' rapid growth rate can be traced back 65 million years
Date:5/10/2011

Researchers have discovered that an evolutionary change from 65 million years ago may have set the pace for the rapid growth rate of present-day flowering plants.

Taylor Feild, associate professor of ecology and evolutionary biology at the University of Tennessee, Knoxville, in collaboration with a group of other researchers from around the world, have determined the precise dates that angiosperms, or flowering plants, experienced two surges in growth during the Cretaceous period.

Their findings are published in the current edition of the Proceedings of the National Academy of Sciences.

The researchers measured the vein densities, or number and length of veins in a given area, in the fossils of more than 300 angiosperm leaves and then compared them to the fossils of nonangiosperms that lived at the same time.

"Because leaf veins supply the water necessary for how plants 'eat' the air to obtain carbon dioxide that is necessary for growth and reproduction, the discovery of shift toward densely veined leaves during the latest Cretaceous strongly suggests that modern functioning vegetation first appeared during that time," Feild said.

The results also provide additional evidence that modern tropical rainforests appear to be no older than the latest Cretaceous.


'/>"/>

Contact: Whitney Holmes
wholmes7@utk.edu
865-974-5460
University of Tennessee at Knoxville
Source:Eurekalert

Page: 1

Related biology news :

1. Rice University establishes National Corrosion Center
2. Case Western Reserve University researchers track Chernobyl fallout
3. Case Western Reserve University project ties soil conservation and river management together
4. Brown University and Women & Infants Hospital expand national childrens study to Bristol County
5. NIH selects Case Western Reserve University to participate in National Childrens Study
6. US Senate confirms Clemson University engineering Dean Esin Gulari to National Science Board
7. University professor stresses links between US Navy sonar and whale strandings
8. Scent on demand: Hebrew University scientists enhance the scent of flowers
9. University success at national engineering awards
10. University of Leicester professor adds new perspective to rainforest debate
11. Providing toilets, safe water is top route to reducing world poverty: UN University
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... team of researchers from The Chinese University of Hong ... of wild soybean linked to salt tolerance, with implication ... soil. This study published online in Nature Communications ... information for crop improvement. , Soybean is an important ... selection, cultivated soybeans have less genetic diversities than their ...
(Date:7/11/2014)... group members to reduce aggression and gain access to ... grooming activities shows a certain pattern across the day. ... Biology Letters . , Grooming between individuals in ... motives. To be groomed has hygienic benefits and is ... can provide access to infants, mating opportunities and high ...
(Date:7/11/2014)... have explored two different ways that allow unprecedented ... the formation of oxygen molecules in photosynthesis. The ... journal Nature Communications . , "The new ... for water oxidation, which are key components for ... of solar energy in fuels like hydrogen, ethanol ...
Breaking Biology News(10 mins):BGI reports a novel gene for salt tolerance found in wild soybean 2Baboons groom early in the day to get benefits later 2Molecular snapshots of oxygen formation in photosynthesis 2
... are an important food source for fish and other aquatic ... this week in the Proceedings of the National Academy ... diets are supported by material that originates on land in ... to clarifying the role that watershed inputs play in aquatic ...
... BUFFALO, N.Y. -- An innovative, educational computing platform developed ... the cloud (remote, high-capacity, scalable servers) is helping UB ... new level. Soon, high-school and middle-school students will benefit ... by UB faculty members with a $250,000 National Science ...
... and Nanyang Technological University (NTU) are collaborating to enhance ... with oil., If successful, the wider application of the ... companies here to produce distilled water for their industrial ... at Singapore,s Jurong Island, which produce a lot of ...
Cached Biology News:Aquatic food web tied to land 2With cloud computing, the mathematics of evolution may get easier to learn 2With cloud computing, the mathematics of evolution may get easier to learn 3With cloud computing, the mathematics of evolution may get easier to learn 4memsys-NTU partnership to enhance water desalination technology 2
(Date:7/10/2014)... Angeles, CA (PRWEB) July 10, 2014 ... and Bioanalytical techniques during 18-20 August, 2014 at Double ... critically review the recent developments in Analytical & Bioanalytical ... the globe. , Speaking on this occasion, Dr. Srinubabu ... Analytica Acta conference is a remarkable one in ...
(Date:7/10/2014)... Ind. , July 10, 2014 /PRNewswire/ ... its use of capnography for respiratory monitoring ... group of healthcare leaders in embracing state-of-the-art ... how effectively patients are breathing and can ... occurs. By measuring the amount of carbon ...
(Date:7/10/2014)... , July 10, 2014 /PRNewswire-iReach/ -- Tute ... interpretation, today announced an agreement with Lineagen, ... for Lineagen,s NextStep Dx PLUS.  Lineagen, ... and neurological disorders, currently offers FirstStep Dx ... testing service used by healthcare providers as ...
(Date:7/10/2014)... 2014 -- According to the International Atomic Energy ... comes from terrorists acquiring sufficient quantities of plutonium ... crude nuclear explosive device. The IAEA also notes ... involved gram-level quantities, which can be challenging to ... a new study appearing this week in the ...
Breaking Biology Technology:A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Franciscan St. Anthony Health-Crown Point Underscores Patient Safety Commitment Through Expanded Use of Capnography 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 3Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 4Sensitive detection method may help impede illicit nuclear trafficking 2
... , , , For determining the optimal reagent for your cells , ... Contents , Kit Contents , Storage and Stability , ... Introduction , , , ... , , Effectene ...
... , QIAshredder spin columns are designed for simple and rapid homogenization , of cell ... , , Format: , ... , , Sample ... plant cell or tissue lysates, white blood cell lysates, , ...
... , , , Library siRNA is available against ... , Library siRNA is synthesised using patented TOM-Amidite chemistry, and , ... annealed, , desalted, and ready to use. A detailed certificate ... order. Library siRNAs are ready for transfection, , and are ...
Cached Biology Technology:Transfection Reagent Selector Kit Handbook 2Transfection Reagent Selector Kit Handbook 3Transfection Reagent Selector Kit Handbook 4Transfection Reagent Selector Kit Handbook 5Transfection Reagent Selector Kit Handbook 6Transfection Reagent Selector Kit Handbook 7Transfection Reagent Selector Kit Handbook 8Transfection Reagent Selector Kit Handbook 9Transfection Reagent Selector Kit Handbook 10Transfection Reagent Selector Kit Handbook 11Transfection Reagent Selector Kit Handbook 12Transfection Reagent Selector Kit Handbook 13Transfection Reagent Selector Kit Handbook 14Transfection Reagent Selector Kit Handbook 15Transfection Reagent Selector Kit Handbook 16Transfection Reagent Selector Kit Handbook 17Transfection Reagent Selector Kit Handbook 18Transfection Reagent Selector Kit Handbook 19Transfection Reagent Selector Kit Handbook 20Transfection Reagent Selector Kit Handbook 21Transfection Reagent Selector Kit Handbook 22Transfection Reagent Selector Kit Handbook 23Transfection Reagent Selector Kit Handbook 24Transfection Reagent Selector Kit Handbook 25Transfection Reagent Selector Kit Handbook 26Transfection Reagent Selector Kit Handbook 27Transfection Reagent Selector Kit Handbook 28Transfection Reagent Selector Kit Handbook 29Transfection Reagent Selector Kit Handbook 30QIAshredder Homogenizer 2
Biotin or fluorescent labels can be attached and the stoichiometry of protein labeling determined....
...
These macrocarriers are for the biolistic PDS-1000 He and Hepta systems. Supplied as 500 macrocarriers....
...
Biology Products: