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:3/18/2016)... , March 18, 2016 --> ... of Biometrics, ICT, Manned & Unmanned Vehicles, Physical infrastructure and ... security companies in the border security market and the continuing ... and Europe has led visiongain to ... improved success. --> defence & security companies ...
(Date:3/15/2016)... March 15, 2016 --> ... by Transparency Market Research "Digital Door Lock Systems Market - ... - 2023," the global digital door lock systems market in ... 2014 and is forecast to grow at a CAGR of ... small and medium enterprises (MSMEs) across the world and high ...
(Date:3/14/2016)... NXTD ) ("NXT-ID" or the "Company"), ... the airing of a new series of commercials on Time ... 21 st .  The commercials will air on Bloomberg TV, ... the Street show. --> NXTD ) ("NXT-ID" or ... market, announces the airing of a new series of commercials ...
Breaking Biology News(10 mins):
(Date:4/29/2016)... ... April 29, 2016 , ... ... in spinal surgical procedures, today announced the completion of a significant transaction and ... current and future customers and partners. Kohlberg & Company, L.L.C. (“Kohlberg”), a ...
(Date:4/29/2016)... ... April 29, 2016 , ... Summit for Stem Cell has ... development of a patient-specific stem cell therapy for the treatment of Parkinson’s disease. The ... Jeanne Loring at The Scripps Research Institute in San Diego, CA. , ...
(Date:4/28/2016)... , April 28, 2016 The ... and Brayton Cryocoolers), Service (Technical Support, Product Repairs & ... - Global Forecast to 2022", published by MarketsandMarkets, the ... Billion by 2022, at a CAGR of 7.29% between ... data Tables and 94 Figures spread through 159 Pages ...
(Date:4/28/2016)... , ... April 28, 2016 , ... ... will deliver a talk on its first-in-class technologies for tissue stem cell ... Meeting on RNAiMicroRNA Biology to Reprogramming & CRISPR-based Genome Engineering in Burlington, ...
Breaking Biology Technology: