Navigation Links
Which plants will survive droughts, climate change?
Date:4/6/2012

During drought, the cell's water becomes harder to replace. The turgor loss point is reached when leaf cells get to a point at which their walls become flaccid; this cell-level loss of turgor causes the leaf to become limp and wilted, and the plant cannot grow, Sack said.

"Drying soil may cause a plant's cells to reach turgor loss point, and the plant will be faced with the choice of either closing its stomata and risking starvation or photosynthesizing with wilted leaves and risking damaging its cell walls and metabolic proteins," Sack said. "To be more drought-tolerant, the plant needs to change its turgor loss point so that its cells will be able to keep their turgor even when soil is dry."

The biologists showed that within ecosystems and around the world, plants that are more drought-tolerant had lower turgor loss points; they could maintain their turgor despite drier soil.

The team also resolved additional decades-old controversies, overturning the long-held assumptions of many scientists about the traits that determine turgor loss point and drought tolerance. Two traits related to plant cells have been thought to affect plants' turgor loss point and improve drought tolerance: Plants can make their cell walls stiffer or they can make their cells saltier by loading them with dissolved solutes. Many prominent scientists have leaned toward the "stiff cell wall" explanation because plants in dry zones around the globe tend to have small, tough leaves. Stiff cell walls might allow the leaf to avoid wilting and to hold onto its water during dry times, scientists reasoned. Little had been known about the saltiness of cells for plants around the world.

The UCLA team has now demonstrated conclusively that it is the saltiness of the cell sap that explains drought tolerance across species. Their first approach was mathematical; the team revisited the fundamental equations that govern wilting behavior and solved them for the
'/>"/>

Contact: Stuart Wolpert
swolpert@support.ucla.edu
310-206-0511
University of California - Los Angeles
Source:Eurekalert

Page: 1 2 3 4 5

Related biology news :

1. Researchers uncover molecular pathway through which common yeast becomes fungal pathogen
2. Another mechanism discovered by which sulforaphane prevents cancer
3. In the genes, but which ones?
4. That which does not kill yeast makes it stronger
5. Which way did it go?
6. VTT identified specific bacteria which precede autoimmune diabetes
7. Which direction are herbicides heading?
8. Scientists discover 3 new gene faults which could increase melanoma risk by 30 percent
9. Climate change will show which animals can take the heat
10. Hormone predicts which kidney patients might die early
11. A mold on which to create new parts of the puzzle that is the nervous system
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/29/2014)... the exposure to tar tended to be lower for ... Similarly, exposure to nicotine tended to be lower. , ... in several countries around the world. Previous studies have ... the smoke of these cigarettes are lower than those ... in the smoke are not necessarily linked to a ...
(Date:9/29/2014)... Monday, September 29: Between 1970 and 2010 populations ... the globe dropped 52 percent, says the 2014 ... Fund (WWF). This biodiversity loss occurs disproportionately in ... of high-income countries. , In addition to the ... point to other warning signs about the overall ...
(Date:9/29/2014)... According to a new Food and Brand Lab pilot ... increase participation in the National School Lunch Program (NSLP) ... by 16%! , Chefs Move to Schools (CMTS), an ... with schools in order to provide nutrition instruction to ... workers. , A CMTS event was held in an ...
Breaking Biology News(10 mins):Slim cigarette smokers not exposed to more harmful chemicals 2Half of global wildlife lost, says new WWF report 2Chefs move to schools can increase school meal participation and vegetable intake among students 2
... blocks for next-generation computer memory has earned a University ... award. Vassiliy Lubchenko, an assistant professor of ... Alfred P. Sloan Research Fellow for his achievements and ... 54 colleges and universities in the United States and ...
... laboratory research using magnetically guided nanoparticles to deliver drugs ... has just spun off its first startup company, Vascular ... VMI, a new company formed to develop the lab ... to create a novel, greatly needed treatment for peripheral ...
... Obesity appears to impair normal muscle function ... implications for humans, according to Penn State researchers. ... accumulating excess fat and carrying excess weight," said ... in physiological genomics, Penn State College of Medicine. ...
Cached Biology News:UH chemist investigates material for next-generation computer memory 2CHOP partners with Vascular Magnetics, Inc. to pursue commercial potential of blood vessel research 2CHOP partners with Vascular Magnetics, Inc. to pursue commercial potential of blood vessel research 3Obesity creates wimpy rats 2
(Date:9/30/2014)... Proove Biosciences , the commercial ... announce a new genetic test built upon research from ... Test will provide physicians with an objective way ... levels are stratified between individuals. With this new test, ... has a genetic predisposition that will affect their pain ...
(Date:9/30/2014)... Switzerland (PRWEB) September 30, 2014 ... software solutions for drug discovery and related ... FUNGITECT consortium has chosen Genedata Selector as ... sequencing (NGS) data. FUNGITECT is a European ... invasive fungal diseases via individualized anti-fungal drug ...
(Date:9/30/2014)... 2014 iLab Solutions announced the results ... which focuses on core facility operations, growth and ... face today. , In its 4th year running, a ... is the year-over-year decrease in the percentage of revenue ... be feeling the constraints of this trend. When asked, ...
(Date:9/30/2014)... CT (PRWEB) September 30, 2014 ... of scientific research products, recently opened an online ... comprehensive cell culture product lines developed and manufactured ... its online store include Biological Industries’ Nutristem® serum-free, ... and human embryonic stem cell (hESC) culture. ...
Breaking Biology Technology:Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 2Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 3FUNGITECT Consortium Adopts Genedata Selector as Data Analysis Platform for Anti-fungal R 2FUNGITECT Consortium Adopts Genedata Selector as Data Analysis Platform for Anti-fungal R 3iLab Solutions Announces the Results of the 2014 Core Facility Benchmarking Study 2iLab Solutions Announces the Results of the 2014 Core Facility Benchmarking Study 3Rainbow Scientific, Inc. opens online store for state-of-the-art stem cell culture and cytogenetic reagents 2
... ALTO, Calif., July 8 Telik, Inc.,(Nasdaq: ... in Bioorganic &,Medicinal Chemistry Letters describing a novel ... to a new treatment for diabetes.,These unique compounds ... at Telik to optimize the original lead structure ...
... distribute US-made bulk API, BATON ROUGE, ... Corporation (NYSE: ALB ), a leading ... other active pharmaceutical,ingredients (APIs), has signed a ... Ltd. As per the agreement, effective,immediately, Albemarle ...
... 8 GeneGo, Inc., the leading,systems biology tools ... has become a certified GeneGo Center of Excellence ... training and advanced,support., The W. M. Keck ... largest biotechnology laboratories of its kind in academia, ...
Cached Biology Technology:Telik Announces Publication of Diabetes Research in Bioorganic & Medicinal Chemistry Letters 2Albemarle Enters Ibuprofen Agreement with Dr. Reddy's 2Albemarle Enters Ibuprofen Agreement with Dr. Reddy's 3Yale Keck Microarray Center Becomes a GeneGo Center of Excellence 2
... Anti-PRK2 MW 140kDa ... Immunogen Peptide spanning amino acids 926-941 ... immunoaffinity purified Quality Assurance ... lysates from HeLa cells. Stability ...
Immunogen: MBP-fusion protein of the C-terminal region of the a2 subunit (amino acids K581-D670) Storage: -20 C, Avoid Freeze/Thaw Cycles...
MarrowMAX Bone Marrow Medium...
Replacement Parts for Electrophoresis Apparatus...
Biology Products: