Navigation Links
Genetic discovery could lead to drought-resistant plants

New knowledge of how plants "breathe" may help us breed and select plants that would better survive scorching summers, says a University of Toronto study.

The paper, which offers the first example of a gene that controls how leaves close their surface pores, appears in the July 12 issue of Current Biology. "It's very exciting," says U of T botany professor and senior author Malcolm Campbell. "This is a gene that helps regulate carbon dioxide uptake. If plants are the Earth's lungs, we've just discovered a key piece of information about how the Earth breathes."

The pores on the surface of plant leaves, called stomata, function like little mouths that open and close in response to cues such as light, temperature, and water availability. Using mouse-ear cress, a relative of mustard, cabbage and radish plants, Campbell and co-authors from U of T and the University of Lancaster compared the cooling rates of plants with normal, high and low levels of gene activity. From their data, they were able to link the gene to plant exhalation.

The discovery is another step in understanding how plants respond to their environment. In hot temperatures, plants keep their mouths "shut" longer than usual, to avoid losing gases and water through evaporation. However, they must open their stomata at some point, both to pick up carbon dioxide needed for photosynthesis and to release oxygen back into the atmosphere. This new information will be important to plant breeders looking to improve crop resistance to drought, as well as to those seeking to understand plants' evolutionary responses to climate, says Campbell.

"These genes are of paramount importance. They allow plants to adapt to changes in light, carbon and water availability. Ultimately, they shape the flux of carbon and water throughout entire ecosystems and affect the carbon cycle on a global-scale." The study was supported by the University of Toronto, the Natural Sciences and Engineering Research Council of Canada and the Biotechnology and Biological Sciences Research Council of the U.K.


'"/>

Source:University of Toronto


Related biology news :

1. Novel Asthma Study Shows Multiple Genetic Input Required; Single-gene Solution Shot Down
2. Genetically modified natural killer immune cells attack, kill leukemia cells
3. Ants Genetic Engineering Leads To Species Interdependency
4. Genetic Variation Visualization - From EMBL
5. Genetically modified rice in China benefits farmers health, study finds
6. Infants With Rare Genetic Disease Saved by Cord Blood Stem Cells
7. Genetically Modified Natural Killer Immune Cells Attack, Kill Leukemia Cells
8. Genetic defects give the immune system the green light to attack the pancreas
9. Maine Researchers Find Exceptions to Old Rules of Genetic Inheritance
10. Genetic therapy reverses nervous system damage in animal model of inherited human disease
11. Infants with Rare Genetic Disease Saved By Cord Blood Stem Cells
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/23/2017)... first robotic gym for the rehabilitation and functional motor sense evaluation of ... Italy . The first 30 robots will be available from June ... . The technology was developed and patented at the IIT laboratories and ... thanks to a 10 million euro investment from entrepreneur Sergio Dompè. ... ...
(Date:4/19/2017)... York , April 19, 2017 ... as its vendor landscape is marked by the presence ... market is however held by five major players - ... Together these companies accounted for nearly 61% of the ... the leading companies in the global military biometrics market ...
(Date:4/11/2017)... , April 11, 2017 Crossmatch®, a ... authentication solutions, today announced that it has been ... Research Projects Activity (IARPA) to develop next-generation Presentation ... "Innovation has been a driving force ... program will allow us to innovate and develop ...
Breaking Biology News(10 mins):
(Date:6/19/2017)... (PRWEB) , ... June 19, 2017 , ... ... overseeing all service activities supporting EDETEK’s products including training, implementation, support, and client ... to his new role. He has previously held leadership roles for service providers ...
(Date:6/16/2017)... ... June 16, 2017 , ... Cognition ... just announced two more sessions of its “From the Helm” Webinar Series. ... world of online templates for design control exercises. Led by David Cronin, Cognition’s ...
(Date:6/15/2017)... ... 15, 2017 , ... Cybrexa Therapeutics, a start-up cancer therapeutics ... in the amount of $6 million. An investment vehicle affiliated with HighCape Partners, ... The Series B funding will enable Cybrexa to complete the build-out of its ...
(Date:6/15/2017)... ... June 15, 2017 , ... Adam Equipment, a leading provider ... a lab workstation. The guide outlines the procedure in four simple steps, using ... AVT anti-vibration table, OIML/ASTM certified weights, and Adam DU specialized software. , A ...
Breaking Biology Technology: