Navigation Links
A tree's response to environmental changes: What can we expect over the next 100 years?
Date:10/9/2009

The many environmental issues facing our society are prevalent in the media lately. Global warming, rainforest devastation, and endangered species have taken center stage. Our ecosystem is composed of a very delicate network of interactions among all species and the non-living environment. Predicting how each component of this complex system will respond to the many environmental changes sweeping the globe is a challenging problem today's scientists face.

A recent article by Dr. Abraham Miller-Rushing and his colleagues at Boston University published in the October issue of the American Journal of Botany (http://www.amjbot.org/cgi/content/full/96/10/1779) explores how increasing concentrations of atmospheric carbon dioxide (CO2) may be affecting trees and, ultimately, affecting water and carbon cycles.

It is known that increasing concentrations of atmospheric CO2 affect the physiology and behavior of many organisms, and in plants, changes to the pores (stomata) on the surface of leaves are one example of these effects. Stomata allow air (containing CO2) to pass into the leaf while water vapor passes out of the leaf. Plants use carbon dioxide to produce sugars during the process of photosynthesis. With increasing concentrations of atmospheric CO2, stomatal density decreases while rates of photosynthesis increase. The decrease in stomatal density results in decreased water loss through the leaves.

"These changes in stomatal behavior and water use efficiency can, in turn, have large impacts on plants and can alter ecosystem-scale water and carbon cycling," Miller-Rushing said. "For example, soil moisture, runoff, and river flows might increase and drought tolerance in individual plants might improve."

The relationship between atmospheric CO2 concentrations and stomatal density is so constan
'/>"/>

Contact: Richard Hund
rhund@botany.org
314-577-9557
American Journal of Botany
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. As ash borer claims more trees, researcher at ISU works for species survival
2. Electrical circuit runs entirely off power in trees
3. Large trees declining in Yosemite
4. New discovery suggests trees evolved camouflage defense against long extinct predator
5. Tires made from trees -- better, cheaper, more fuel efficient
6. Ferns took to the trees and thrived
7. When palm trees gave way to spruce trees
8. Australias climate: Drought and flooding in annual rings of tropical trees
9. Plastic that grows on trees, part two
10. Study finds hemlock trees dying rapidly, affecting forest carbon cycle
11. California study shows shade trees reduce summertime electricity use
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... 2014 Research and Markets ( http://www.researchandmarkets.com/research/s6qzt5/samsung_galaxy_s5 ) ... S5 - Home Button Synaptics Fingerprint Sensor Technology Analysis" ... http://photos.prnewswire.com/prnh/20130307/600769 Based on a totally ... for the first time a fingerprint sensor in its ...
(Date:12/17/2014)... DENVER , Dec. 16, 2014  Automation is fundamentally ... evident than at international borders. Over the past decade, ... veteran travelers to self process through border control via ... increasing number of airports, seaports, and land borders across ...
(Date:12/11/2014)... , Dec. 10, 2014  Data Sciences International (DSI), ... released a new series of digital telemetry implants ... researchers. M series, part of the PhysioTel™ Digital ... best possible physiologic data when incorporating functional endpoints ...
Breaking Biology News(10 mins):Samsung Galaxy S5 - Home Button Synaptics Fingerprint Sensor Technology Analysis 2Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2New telemetry implants expected to change how large animal toxicology studies are conducted 2
... Mich. The long-held belief that plant-eating insects in ... home dining only on locale-specific vegetation ... these insects feast on a broader menu of foliage ... of tropical forestland. These findings have significant ...
... the mechanisms that trigger cancer cell growth is vital to ... article published in the August 3 issue of Molecular Cell ... in the future. The paper is co-authored by Dr Morag ... Kalle Gehring, Head of the Nuclear Magnetic Resonnance Laboratory of ...
... Biotesting Europe, a new 358,000 biometrics project, part-funded by ... testing procedures and facilities meet the needs of systems ... Biometric recognition systems measure unique behavioural or physical ... as iris images, fingerprints, the structure of veins in ...
Cached Biology News:Tropical insects 'go the distance' to inform rainforest conservation 2A study by the MUHC and McGill University opens a new door to understanding cancer 2UK scientists working to help cut ID theft 2
(Date:1/22/2015)... 22 de enero de 2015  El Dr. Paul ... llamada a nominaciones para 2015. Este prestigioso premio reconoce ... tiene el potencial para hacer, contribuciones destacadas para la ... hasta el 15 de marzo de 2015 a través ...
(Date:1/22/2015)... N.J. , Jan. 22, 2015  Derma Sciences, ... regeneration company focused on advanced wound care, announces ... placental tissues, have been added to the Premier, ... increases the opportunity for the AMNIOEXCEL® and AMNIOMATRIX® ...
(Date:12/24/2014)... AUSTIN, Texas , Dec. 24, 2014  Vermillion, ... focused on gynecologic disease, announced today that the ... investors including Oracle Investment Management, Jack W. ... directors. Total proceeds were $10.5 million, before offering ...
(Date:12/24/2014)... MA (PRWEB) December 23, 2014 Earlier this ... L. Sherley, director of the Adult Stem Cell Technology Center, ... and under appreciated unique property of adult tissue stem cells. ... in the Past, Important for the Future,” embodied the essence ...
Breaking Biology Technology:El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 3El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 2Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 3Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 5Vermillion Announces Closing of Equity Financing 2Vermillion Announces Closing of Equity Financing 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 2Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 4
... Medical, Inc.,(Nasdaq: ATSI ), manufacturer and ... today announced Health Canada -- Medical,Device Bureau, ... the ATS,Open Pivot(R) AP360(TM) Mechanical Heart Valve., ... The ATS AP360 heart valve maximizes hemodynamic ...
... Find Suitable Candidate, WESLEY CHAPEL, Florida, June ... Eran Rotem, its Chief,Financial Officer, who currently lives ... The Company has initiated search for a suitable,candidate ... Ram Ajjarapu commented: "We appreciate the contributions ...
... The United States Council for,Automotive Research LLC (USCAR), whose ... Corporation, welcomed the addition of electric,utility partners to the ... of Energy (DOE) today (June 20) at the Automotive ... Southern California Edison were named as new members of,the ...
Cached Biology Technology:ATS Medical Announces Canadian Regulatory Approval of the ATS Open Pivot AP360 Mechanical Heart Valve 2U.S. Automakers Welcome Utility Partners To FreedomCAR and Fuel Partnership 2U.S. Automakers Welcome Utility Partners To FreedomCAR and Fuel Partnership 3U.S. Automakers Welcome Utility Partners To FreedomCAR and Fuel Partnership 4
...
... 4 deuterium atoms at the 9, 10, 12, ... as an internal standard for the quantification of ... produced by incubation of linoleic acid with plant ... inhibit the adhesion of tumor cells to the ...
... Sf9 Cells and TriEx Insect Cell Medium ... baculovirus constructs. This cell/medium combination has been ... and high protein expression levels observed specifically ... Please note that our Ready-Plaque Sf9 Cells ...
...
Biology Products: