Navigation Links
ISU research leads to understanding of how crops deal with stress -- yield's biggest enemy
Date:4/25/2011

AMES, Iowa - Like people, plants experience stress. And also, like people, the response to that stress can determine success.

People can exercise, or rest, or talk about the problem.

For plants, ways to deal with stress are internal. And ISU researchers are trying to understand how they do it.

Stephen Howell is a professor of genetics, development and cell biology and former director of the Plant Sciences Institute at ISU. His research is featured in the current issue of the journal Proceedings of the National Academy of Sciences.

"We've discovered a new arm of the pathway by which plants activate a response to environmental stress," he said.

Adverse environmental conditions, such as drought, flood, heat and other stresses, affect yield more than crop pests and diseases. Finding a way to maintain high yields for plants under stress is a goal of plant breeders and other agriculture stakeholders, said Howell.

"These are environmental stresses that the farmers can't control," Howell said. "They are acts of nature. And now seed companies are interested in trying to equip plants with the ability to tolerate stress."

Plant cells produce proteins and ship them to different parts of the cell.

During production and shipment, these proteins move through an area of the cell called the endoplasmic reticulum (ER).

Under normal conditions, these proteins are folded into their normal, healthy three-dimensional structures as they are produced.

When a plant is under stress, its cells produce poorly folded or unfolded proteins. Inside the ER, a built-in, quality-control system senses this and "sets off an alarm in the cell," said Howell.

In response to the alarm, another protein (IRE1) cuts apart an important RNA molecule, but then splices it back together to create a different sequence.

This cut-and-splice event activates a cascade of stress response genes whose p
'/>"/>

Contact: Stephen Howell
shh@iastate.edu
703-292-8528
Iowa State University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Wistar Institute researcher receives New Innovator award from NIH
2. NC State researchers get to root of parasite genome
3. White Mountain Research Station to host climate change conference
4. Stevens awarded $1M for advanced biofuels research
5. Researchers find animal with ability to survive climate change
6. Researchers find an essential gene for forming ears of corn
7. Researchers note differences between people and animals on calorie restriction
8. Researcher working on destruction of chemical weapons
9. Researchers study acoustic communication in deep-sea fish
10. Researchers discover that growing up too fast may mean dying young in honey bees
11. The Rett Syndrome Research Trust launches operations
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/20/2014)... Women who are poor experience higher cortisol levels in ... of the stress hormone, putting them at greater ... a new research from the University of Colorado Denver. ... American Journal of Human Biology , is the first ... to the socioeconomic status of their mothers during pregnancy. ...
(Date:8/20/2014)... When a colony of honeybees grows to about 4,000 ... reproductive cycle: the building of a special type of ... team of experts from the Department of Neurobiology and ... what starts the reproductive cycle of honeybee colonies. The ... The Science of Nature . , Reproduction isn,t ...
(Date:8/20/2014)... leaves, photosystem 1 (PS1) absorbs light and its ... carbon dioxide to biomass. Photovoltaic devices, mostly build ... but produce electricity. One approach for the development ... the semi-conductor with the isolated membrane protein complexes ... a highly stable PS1 from thermophilic cyanobacteria that ...
Breaking Biology News(10 mins):CU Denver researcher shows economic disparities impact infant health 2Worker bees 'know' when to invest in their reproductive future 2A semi-artificial leaf faster than 'natural' photosynthesis 2
... ) continues to expand at a record pace with the ... 2012, EOL provides data on nearly half of all described ... issues from the International Union for the Conservation of Nature ... before. In the four years since its first ...
... of species previously unknown to science have been discovered ... dark environment surrounding hydrothermal vents. The discoveries, made ... of Southampton and British Antarctic Survey, include new species ... an octopus. For the first time, researchers have ...
... Jan. 3, 2011 By manipulating the way bacteria ... have achieved an unprecedented degree of control over the ... potentially significant health and industrial applications, particularly to bioreactor ... Professor Thomas K. Wood and Associate Professor Arul Jayaraman ...
Cached Biology News:The Encyclopedia of Life expanding at a record pace 2'Lost world' discovered around Antarctic vents 2Manipulating way bacteria 'talk' could have practical applications, Texas A&M profs say 2Manipulating way bacteria 'talk' could have practical applications, Texas A&M profs say 3
(Date:8/18/2014)... (PRWEB) August 19, 2014 2014 ... Industryā€¯ is a professional and in-depth research report ... basic Linalool information, including its definition, classification, ... industry overview. This research covers the international market ... global industry analysis covering macroeconomic environment & economic ...
(Date:8/18/2014)... 18, 2014 /PRNewswire/ - SQI Diagnostics Inc. (TSX-V: SQD), a ... and products for advanced microarray diagnostics, today announced it ... 22 at 2:00 pm ET.  During ... a brief review of SQI,s recent commercialization progress and ... industry veteran recently appointed to the Board of Directors ...
(Date:8/18/2014)...   Sterne, Kessler, Goldstein & Fox P.L.L.C. , ... DC , announced today that it has filed ... with the U.S. Patent and Trademark Office (USPTO) on ... Inc. (Nasdaq: BRLI).  These IPR petitions aim to nullify ... Inc. These patents have been asserted against GeneDx in ...
(Date:8/18/2014)... 18, 2014 Global HIV Infection Drug ... announced by Reportstack. The rate of HIV infection and the ... declining note at a positive rate across the globe. It ... million in 2005 to 1.5 in 2013, with the rates ... such drastic changes in the infection rates has been the ...
Breaking Biology Technology:Linalool Industry & Diphenylamine Market (Global, China) 2014 Analysis Now Available at DeepResearchReports.com 2Linalool Industry & Diphenylamine Market (Global, China) 2014 Analysis Now Available at DeepResearchReports.com 3Linalool Industry & Diphenylamine Market (Global, China) 2014 Analysis Now Available at DeepResearchReports.com 4SQI Diagnostics Announces Investor Conference Call with Dr. Allan Pronovost 2SQI Diagnostics Announces Investor Conference Call with Dr. Allan Pronovost 3Sterne Kessler Files 11 IPR Petitions On Behalf Of GeneDx, Inc., Subsidiary Of BioReference Laboratories, Inc. 2Sterne Kessler Files 11 IPR Petitions On Behalf Of GeneDx, Inc., Subsidiary Of BioReference Laboratories, Inc. 3Global HIV Infection Drug Market Overview 2Global HIV Infection Drug Market Overview 3Global HIV Infection Drug Market Overview 4
... , ... Centage extends its financial performance management offerings to bring powerful, dynamic, driver-based planning, ... ... 2009 -- Centage Corporation, a leading provider of integrated budgeting, forecasting, consolidation and ...
... BOZEN, Italy, August 10 , ... Health Robotics today announced that it ... Robotics, CytoCare Robot. The,agreement enables McKesson to achieve its goal ... admixtures. , "We are very pleased ...
... LEXINGTON, Mass. and HEIDELBERG, Germany, Aug. 10 ... DNA-capture method, HybSelect(TM), to re-sequence the exons of genes involved ... the ultimate goal of developing genetic tests to detect carrier ... , In this collaboration the NCGR will bring ...
Cached Biology Technology:Centage Corporation Announces Planning Maestro Business Performance Management Software for Mid-Market Enterprises 2Centage Corporation Announces Planning Maestro Business Performance Management Software for Mid-Market Enterprises 3McKesson Expands Pharmacy Automation Product Portfolio to Include I.V. Therapy 2McKesson Expands Pharmacy Automation Product Portfolio to Include I.V. Therapy 3The National Center for Genome Resources Studies Childhood Diseases Using febit's DNA Capture Method 2The National Center for Genome Resources Studies Childhood Diseases Using febit's DNA Capture Method 3
12 breakable polypropylene strips of 8 wells each held in a rigid frame. Ideal for antibody assays....
... Designed for in vitro diagnostic assays, ... medical-grade polystyrene for uniform binding, high optical ... the Easy-Washproducts are part of the Certified ... performance to be within QA release specifications. ...
... StabilZyme SELECT Stabilizer is an aqueous solution ... other non-toxic stabilizing chemicals in a saline ... a combination of 0.02% methylisothiazolone and 0.02% ... Stabilizer is a diluent and stabilizer for ...
AC input: 230 V...
Biology Products: