Navigation Links
Brown biologist solves mystery of tropical grasses' origin
Date:2/8/2010

cted to greater fluctuations in precipitation, sunlight, temperature and other environmental stresses, spurring the photosynthetic innovation.

What that all means for the future of C4 grasses and climate change is an open question. While the grasses would presumably benefit from projections of lower mean rainfall in some areas of the tropics, they may be less competitive with rising levels of atmospheric CO2. Also, the effects of changes in land through deforestation and other practices would need to be considered, Edwards said.

In a related finding, the scientists attempt to explain the dominance of a lineage of C3 grasses, called Pooideae, in northern, cold areas of the globe, such as the Mongolian steppes. "The global latitudinal gradients of C3 and C4 always has been explained by the physiological advantages that C4 grasses have under high temperatures," Edwards explained. "No one has considered that the evolution of cold tolerance might have been equally important in setting up that latitudinal gradient. Climatically speaking, the cool-climate Pooideae are really the grasses that are doing something very different."

"It highlights the apparently important role that cold tolerance has played for the evolution of non-C4 grasses and especially the group Pooideae, which includes rye, barley, and wheat and many of the other grasses in the temperate and boreal habitats," Smith said.


'/>"/>

Contact: Richard Lewis
Richard_Lewis@Brown.edu
401-863-3766
Brown University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Brown fat cells make spare tires shrink
2. Brown and beige dominate the plate: Daily dose of color needed to fill Americas phytonutrient gap
3. Northern brown bears discovered feeding on whitefish runs
4. New research to unravel how nutrients drive toxic brown tides on East Coast
5. Brain-computer interface, developed at Brown, begins new clinical trial
6. Cold and brown fat raise the prospect of a new method of treating obesity
7. Brown-led team offers first look at how bats land
8. Carnegies Donald Brown receives lifetime achievement award from Society for Developmental Biology
9. Moving in for the winter toxic brown recluse spiders pose danger
10. Men are red, women are green, Brown researcher finds
11. Brown chemist finds gray molds killer gene
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/25/2014)... first broad-scale estimate of air pollution removal by trees ... trees are saving more than 850 human lives a ... , While trees, pollution removal equated to an average ... impacts of that improvement are substantial. Researchers valued the ... nearly $7 billion every year in a study published ...
(Date:7/25/2014)... this false-color image from the Terra satellite show the different ... wildfires in Eastern Russia. The burn scars show up ... The wildfires have broken across the remote parts of Eastern ... image from the MODIS instrument, it is still possible ... Two recent image features noted below show the devastating number ...
(Date:7/25/2014)... and disrupted brain development is an essential part ... largely unknown. However, thanks to funding from the ... University (GW) researcher Anthony-Samuel LaMantia, Ph.D. may be ... to these key questions in the field of ... and physiology at the GW School of Medicine ...
Breaking Biology News(10 mins):First national study finds trees saving lives, reducing respiratory problems 2GW researcher receives grant to answer the how and why of autism during development 2
... study led by Yale biologists, of the effects of ... iguanas on the Galpagos Islands, emphasizes the importance of ... which environmental and biological factors make specific populations more ... El Nio events provide an ideal system to study ...
... Scandinavia have discovered that warm-water species like anchovies and ... during a prehistoric warm period are now returning. Some ... this period, having benefited from a lower fishing ... accounts, church registers and account books of monasteries, an ...
... Today, the Project on Emerging Nanotechnologies released the results ... aimed at discovering how firms in almost every sector ... safety (EHS) impacts of new nanoscale materials and products. ... roadmap of government EHS expectations and regulations for successful ...
Cached Biology News:Global climate change: The impact of El Niño on Galápagos marine iguanas 2Ancient fish bones reveal impacts of global warming beneath the sea 2Ancient fish bones reveal impacts of global warming beneath the sea 3Ancient fish bones reveal impacts of global warming beneath the sea 4Ancient fish bones reveal impacts of global warming beneath the sea 5Nanotech companies need clear environment and health roadmap to succeed 2
(Date:7/28/2014)... 28, 2014 Appistry, Inc. , ... bring the power of genomics to next-generation medicine, announced ... Pipeline Challenge . , Two Appistry staff will ... National Center for Genome Resources, and Mr. Neil Miller, ... of Kansas City. Rounding out the panel are Appistry’s ...
(Date:7/28/2014)... -- Research and Markets has announced the addition ... report to their offering. http://photos.prnewswire.com/prnh/20130307/600769 ... used to determine the size of a particle in a ... analyze the size of particles as it can affect the ... to determine the behavior and nature of a material, and ...
(Date:7/25/2014)... bacteria live in each person,s digestive tract. Scientists believe ... stave off harmful infections, but their role in human ... light on the role of these bacteria, a team ... recently tracked fluctuations in the bacterial populations of two ... in the July 25 issue of the journal ...
(Date:7/25/2014)... July 25, 2014 The Conferee Networking ... Topics for Conferee Networking. These two-hour sessions provide a ... meet and resolve problems, discuss new techniques, or brainstorm ... to submit a topic for consideration is August 31, ... . The Conferee Networking committee will review the topics, ...
Breaking Biology Technology:Appistry Names Industry Experts from the National Center for Genome Resources and Mercy Children's, Kansas City, to Judge Pipeline Challenge Competition 2Global Particle Size Analysis Market 2014-2018 2Monitoring the rise and fall of the microbiome 2Monitoring the rise and fall of the microbiome 3Pittcon 2015 Announces Call for Topics for Conferee Networking Sessions 2
... DALLAS, November 10, 2011 The report ... - 2020) [ http://www.marketsandmarkets.com/Market-Reports/lung-cancer-drugs-market-508.html ] " ... in North America, and Europe. Browse ... in G7 Countries (2005 - 2020). ...
... to pick up electrons, but tweezers made of electrons. A ... and Technology (NIST) and the University of Virginia (UVA) demonstrates ... used not just to look at nanoscale objects, but to ... Essentially, they say, the tool is an electron version ...
... 9, 2011 VaxyGen Assay Services, LLC , ... custom assay services , immunoassays , and ... The Company offers customized solutions to meet basic, applied, ...  assays in support of research and ...
Cached Biology Technology:MarketsandMarkets: Lung Cancer Drugs Market in G7 Countries Worth $13 Billion by 2020 2MarketsandMarkets: Lung Cancer Drugs Market in G7 Countries Worth $13 Billion by 2020 3MarketsandMarkets: Lung Cancer Drugs Market in G7 Countries Worth $13 Billion by 2020 4Are electron tweezers possible? Apparently so 2VaxyGen Assay Services, LLC Announces Launch of Custom Bioassay Services and Operations 2
...
...
... member of Wyatt Technology's family of light ... your high temperature chromatograph and enables you ... thermoplastic polymers. The HTmD is easily installed ... PL220C or Alliance 2000 device and enables ...
... The FDSS6000 System is an ... assays, assay development and high throughput ... and luminescence modalities., The Hamamatsu light ... highlight our companys decades-long experience in ...
Biology Products: