Navigation Links
Increasing drought stress challenges vulnerable hydraulic system of plants, GW professor finds
Date:11/27/2012

WASHINGTON - The hydraulic system of trees is so finely-tuned that predicted increases in drought due to climate change may lead to catastrophic failure in many species. A recent paper co-authored by George Washington University Assistant Professor of Biological Sciences Amy Zanne finds that those systems in plants around the globe are operating at the top of their safety threshold, making forest ecosystems vulnerable to increasing environmental stress.

In the current issue of the journal Nature, Dr. Zanne and lead authors from the University of Western Sydney in Australia and Ulm University in Germany, report that the hydraulic system trees depend on is a unique but unstable mechanism that is constantly challenged.

"Drought is a major force shaping our forests," said Dr. Zanne, a faculty member within the Columbian College of Arts and Sciences. "Over the last century, drought has been responsible globally for numerous large-scale forest diebacks. To make effective predictions of how forest landscapes may change in the future, we need to first understand how plants work."

The primary challenge plants face during drought is how to keep their plumbing working. Drought stress creates trapped gas emboli in the water system, which reduces the ability of plants to supply water to leaves for photosynthetic gas exchange and can ultimately result in desiccation and death.

"Vulnerability to embolism is one of the main factors determining drought effects on trees," Dr. Zanne said. "However, plants vary dramatically in their resistance to drought-induced embolism, which has made predictions of how forests might be altered under future climates more difficult."

While the research findings are alarming, plants do have a few other tricks up their sleeves. They may have some flexibility of changing their plumbing or new species of trees may replace species no longer capable of persisting in a given place.

An international team consisting of Dr
'/>"/>

Contact: Latarsha Gatlin
lgatlin@gwu.edu
202-994-5631
George Washington University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Environmental concerns increasing infectious disease in amphibians, other animals
2. A Kit for increasing insulin production
3. Increasing levels of carbon dioxide in Arctic coastal seas
4. Loss of biodiversity increasingly threatens human well-being: UBC, University of Michigan research
5. Increasing predator-friendly land can help farmers reduce costs
6. Increasing water scarcity in Californias Bay-Delta will necessitate trade-offs; hard decisions needed to balance various environmental risks
7. Increasing clarity for medics in suspected physical abuse cases
8. Surprising pine beetle breeding habits help explain increasing tree damage, says CU study
9. Drought in 2001-2002 fueled Rocky Mountain pine beetle outbreak
10. 2001-2002 drought helped propel mountain pine beetle epidemic, says CU study
11. UK butterfly populations threatened by extreme drought and landscape fragmentation
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/11/2014)... Research and Markets , ... http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has announced the addition of the ... to their offering. One major ... of multimodal biometric systems. Multimodal biometric systems utilize ... verification and identification purposes. This helps to reduce ...
(Date:12/11/2014)... , Dec. 10, 2014  Data Sciences ... monitoring, has released a new series of digital ... preclinical toxicology researchers. M series, part of the ... collect the best possible physiologic data when incorporating ... Adding functional endpoints to toxicology studies has evolved ...
(Date:12/10/2014)... 2014  Valencell, a leader in performance biometric data ... demand from its licensees for highly accurate, clinically validated ... solely coming from fitness and health sectors, but first ... wearable is only as useful as the biometric data ... driver in long-term mass consumer adoption of wearable products," ...
Breaking Biology News(10 mins):Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2New telemetry implants expected to change how large animal toxicology studies are conducted 2Wearable Technology Products Demand Highly Accurate Biometric Technology 2
... children and young adults for influenza is being seriously underestimated, ... historic vaccine programs have concentrated on the elderly and those ... computer modeling analysis was just published in the journal ... Health. The study suggests that children in school and young ...
... June 11, 2013 (BRONX, NY) Today, researchers ... Yeshiva University convened a one-day conference on Jewish genetics ... research. Such research could help scientists identify causes and ... common disorders afflicting the general population. The ...
... guarantee future support for international scientific collaborations funded by ... on a three year budgetary framework will extend the ... At an Intergovernmental Conference hosted by the European Commission ... governments that support the Human Frontier Science Program came ...
Cached Biology News:Flu vaccines aimed at younger populations could break annual transmission cycle 2Flu vaccines aimed at younger populations could break annual transmission cycle 3Albert Einstein College of Medicine hosts conference on Jewish genetic research 2
(Date:12/17/2014)... December 17, 2014 This report ... Quartz Tubing industry. For an overview analysis, the ... application, industry chain structure, industry overview, policy analysis, ... tubing industry has witnessed rapid development with ... of acquisitions. This report mentions quartz tubing upstream ...
(Date:12/17/2014)... Audacity, a leading California-based health and science ... Huntsworth Health Group, is proud to announce the addition ... role, Gonzales will serve as Senior Vice President of ... welcome a talent of Jamie’s caliber to the Audacity ... is a proven healthcare innovation leader and brand management ...
(Date:12/17/2014)... CASI Pharmaceuticals, Inc. (Nasdaq: CASI ... and commercialization of innovative therapeutics addressing cancer and other ... primary commercial focus on China , ... C meeting with the U.S. Food and Drug Administration ... February 2015.  During this meeting the Company will seek ...
(Date:12/15/2014)... (PRWEB) December 15, 2014 METTLER ... inline PVM tool, ParticleView V19 with PVM ... situ probe-based particle vision and measurement tool continuously ... process conditions. ParticleView V19 then automatically prepares a ... tracking particle size and concentration changes. This compelling ...
Breaking Biology Technology:2020 Quartz Tubing Market: Global Development & Forecasts Analysis Now at DeepResearchReports.com 2Audacity Welcomes Healthcare Communications Expert Jamie Gonzales as Senior Vice President of Client Services 2CASI Pharmaceuticals Granted Type C Meeting With U.S. FDA For ENMD-2076 In Fibrolamellar Carcinoma 2CASI Pharmaceuticals Granted Type C Meeting With U.S. FDA For ENMD-2076 In Fibrolamellar Carcinoma 3CASI Pharmaceuticals Granted Type C Meeting With U.S. FDA For ENMD-2076 In Fibrolamellar Carcinoma 4CASI Pharmaceuticals Granted Type C Meeting With U.S. FDA For ENMD-2076 In Fibrolamellar Carcinoma 5New Real-Time In Situ Probe-Based Video Microscope from METTLER TOLEDO 2
... 29 BioNeutral Group, Inc. ("BioNeutral") (OTC Bulletin Board: BONU), a chemical ... Scientist, Dr. Andrew Kielbania will appear on WVOX AM,s "In Focus" radio ... , The radio broadcast may be accessed via the Internet ... About Dr. Dan Miller , Dr. Miller is a retired ...
... England, July 29 In what will be the Stem ... seventh awareness rally, past patients, interested physicians, and prospective patients ... and discuss the various current treatments available throughout the world. ... is organizing the Manchester event. Mr. Clarke became involved in ...
... ... today that it is now offering its Linux and Open Source support services to ... support, the firm will be rapidly incorporating additional services over the next six months. ... Cambridge, MA ...
Cached Biology Technology:BioNeutral Group's CEO, Stephen Browand and Chief Scientist, Dr. Andrew Kielbania to Appear on WVOX 1460 AM 'In Focus' Radio Show Hosted by Dr. Dan Miller 2First U.K. Stem Cell Awareness Rally to Take Place in Manchester, England on August 9th, 2009 2First U.K. Stem Cell Awareness Rally to Take Place in Manchester, England on August 9th, 2009 3MUSA Technology Partners Introduces Linux/Open Source Service Desk 2MUSA Technology Partners Introduces Linux/Open Source Service Desk 3
Mouse monoclonal [3F8 ] to smooth muscle Myosin heavy chain I ( Abpromise for all tested applications). entrezGeneID: 4629 SwissProtID: P35749...
Rabbit polyclonal to CAMK 1D beta ( Abpromise for all tested applications). entrezGeneID: 57118 SwissProtID: Q5SQQ7...
Request Info...
Goat polyclonal to HNF4 ( Abpromise for all tested applications). Antigen: Synthetic peptide: RLSKTLVDMDMADY (Human) N terminal. Entrez GeneID: 3172 Swiss Protein ID: P41235...
Biology Products: