HOME >> BIOLOGY >> NEWS
UCSD researchers decipher molecular "code" capable of controlling plant water loss during droughts

Scientists have succeeded in deciphering the chemical signaling mechanism that allows plants to close their stomatathe tiny pores in leaves through which gases and water vapor flow during photosynthesis and respirationfor extended periods.

The discovery of this signaling mechanism, a kind of biological Morse code used by plants to control the opening and closing of stomata, is described in the June 28 issue of Nature by biologists at the University of California, San Diego working with two German collaborators. Their achievement opens up a new area of study for plant scientists and may one day allow them to engineer drought-resistant crops that can more effectively survive water shortages by limiting water loss during droughts.

"Much of the land used for agriculture is not irrigated because water is either unavailable or too expensive," says Julian I. Schroeder, a professor of biology at UCSD who headed the research team. "So if crops can be engineered to respond to droughts by more rapidly and effectively closing their stomatal pores, where 95 percent of the water loss in plants occur, they could better survive drought periods by conserving water until the next rain hits. The commercial impact would be substantial. In the past decade, the average loss in the corn crop in the United States during three major droughts was 30 percent."

In their study, the scientists discovered that specialized cells in the leaves called guard cells that surround each pore, or stoma, "tune in" to the frequency of calcium

oscillations in the cell, just as we might tune into a specific radio signal on the FM dial. When these oscillations of calcium concentrations in the cell are at just the right frequency, the scientists discovered, the guard cells respond by closing the stomata for extended periods. When the oscillations are not at the right frequency, the stomatawhich initially close in response to elevations in calciumreopen within an hour.

"Plants ar
'"/>

Contact: Kim A. McDonald
kimmcdonald@ucsd.edu
858-534-7572
University of California - San Diego
27-Jun-2001


Page: 1 2 3

Related biology news :

1. Belgian researchers explore revolutionary approach to angiogenesis
2. Award winning researchers reveal potential new role for Glivec
3. $7.5 Million grant to Yale researchers for role of viruses in cancer
4. New anti-inflammatory strategy for cancer therapy identified by UCSD researchers
5. Joslin researchers clarify mechanisms for beta-cell formation
6. Virginia Tech researchers to release findings on Smith River Project
7. Molecular motor myosin VI moves hand over hand, researchers say
8. ASU researchers demonstrate new technique that improves the power of atomic force micrscopy
9. Emory researchers map structure of anti-cancer molecule
10. Leukemia stem cells identified by Stanford researchers
11. EURYI Award given for the first time to 25 young European researchers

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/19/2017)... New York , April 19, 2017 ... competitive, as its vendor landscape is marked by the ... the market is however held by five major players ... Safran. Together these companies accounted for nearly 61% of ... of the leading companies in the global military biometrics ...
(Date:4/13/2017)... , April 13, 2017 UBM,s Advanced Design ... will feature emerging and evolving technology through its ... Summits will run alongside the expo portion of the ... panels and demonstrations focused on trending topics within 3D ... design and manufacturing event will take place June 13-15, 2017 ...
(Date:4/11/2017)... DUBLIN , Apr. 11, 2017 Research ... Tracking Market 2017-2021" report to their offering. ... The global eye tracking market to grow at ... The report, Global Eye Tracking Market 2017-2021, has been prepared based ... report covers the market landscape and its growth prospects over the ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... (PRWEB) , ... October 11, 2017 , ... ... compared the implantation and pregnancy rates in frozen and fresh in vitro ... of progesterone and maternal age to IVF success. , After comparing the results ...
(Date:10/10/2017)... , ... October 10, 2017 ... ... cancer-focused pharmaceutical company advancing targeted antibody-drug conjugate (ADC) therapeutics, today confirmed licensing ... HPLN (Hybrid Polymerized Liposomal Nanoparticle), a technology developed in collaboration with Children’s ...
(Date:10/10/2017)... International research firm Parks Associates announced today that Tom ... 2017 Annual Meeting , October 11 in Scottsdale, Arizona ... and how smart safety and security products impact the competitive landscape. ... Parks Associates: Smart Home Devices: Main Purchase Driver ... "The residential security market has experienced continued growth, and ...
(Date:10/10/2017)... ... October 10, 2017 , ... The Pittcon Program ... honoring scientists who have made outstanding contributions to analytical chemistry and ... 2018, the world’s leading conference and exposition for laboratory science, which will be ...
Breaking Biology Technology:
Cached News: