HOME >> BIOLOGY >> NEWS
Coping: Plant adaptability to stress discovered

COLLEGE STATION Most people who get too hot and thirsty this summer can quickly grab a cool drink.

Not so for plants. Their roots keep them lingering in stressful situations - sometimes to death.

Now a Texas A&M University researcher has identified a system in a mutant arabidopsis, a type of weed, that signals to its cells to go on hold until stressful situations pass.

The involvement of "ER stress signal pathway" in plant stress adaptation was discovered by Dr. Hisashi Koiwa, assistant professor of horticultural sciences, and colleagues. Koiwa is presenting the finding at the annual meeting of American Society of Plant Biologists this week (July 26-31) in Hawaii. The findings also will appear in an upcoming issue of the journal "The Plant Cell."

"A plant will attempt to regulate itself when stressed by adjusting its cells to the environment before starting to grow again," Koiwa said. "It's as if a plant is saying to itself, 'wait, we're in a drought, let's adjust before we grow anymore.'

"A plant must have a better stress handling technique," he added.

The scientist explained that when a plant is stressed, it has to rest until it adjusts because if plant cells continue to divide under stress, they might "burst." Something signals a plant to pause, he said, but scientists have never fully studied the systems of plants.

His research, funded in part with a National Science Foundation grant through collaboration with Purdue University researchers, describes how the process works in the mutant arabidopsis.

"It's a natural way for the plant to sense stress and signal to adjust," Koiwa said. "The concept is not new, but it had not been fully established prior to this research."

He said researchers now can look closer at the process to see what happens in other plants. In the long term, he said, plant breeders might use this knowledge to breed plants that are more able to adjust
'"/>

Contact: Kathleen Phillips
ka-phillips@tamu.edu
979-845-2872
Texas A&M University - Agricultural Communications
30-Jul-2003


Page: 1 2

Related biology news :

1. Plants will not save us from greenhouse gases
2. Plant pathologists meeting in Anaheim, CA to discuss agricultural security, food safety, and more
3. Plant gene discovery could enhance plant growth, reduce fertilizer needs and phosphate pollution
4. Plant respiration not just an evolutionary leftover, study shows
5. Canadian Society of Agronomy partners with Plant Management Network
6. Plant pathologists look to forensics to aid in biosecurity
7. Plants for the future: A European vision for plant biotechnology towards 2025
8. Plant pathologists to discuss the future of organic farming
9. Plant pathologists to meet in Anaheim, CA to discuss agricultural security, food safety, and more
10. Plant-like enzyme acts as key life cycle switch in malaria parasite
11. Plant disease under the homeland security microscope

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


(Date:2/4/2016)... , Feb. 4, 2016 The field ... one of the most popular hubs of the ... and other huge studies of human microbiota, have ... few years, the microbiome space has literally exploded ... research. This report focuses on biomedical aspects ...
(Date:2/2/2016)... 2016  BioMEMS devices deployed in hospitals ... medical screening and diagnostic applications, such as ... that facilitate and assure continuous monitoring without ... being bolstered through new opportunities offered by ... coupled with wireless connectivity and low power ...
(Date:2/2/2016)... 2, 2016  Based on its recent analysis ... recognizes US-based Intelligent Retinal Imaging Systems (IRIS) with ... for New Product Innovation. IRIS, a prominent cloud-based ... America , is poised to set the ... retinopathy market. The IRIS technology presents superior price-performance ...
Breaking Biology News(10 mins):
(Date:2/8/2016)... 2016 Should antibiotic bone cement products be ... prevent infection after standard total hip or knee replacement ... Institute have been fielding a lot lately. ... Line?" --> "Antibiotic Bone Cement: ... --> While there isn,t a simple answer, ...
(Date:2/8/2016)... , February 8, 2016 ... Oncology Private Limited, an innovation-driven oncology company developing ... and less toxic, today announced that chairman emeritus ... has invested in the company as part of ... round, joining existing investors Navam Capital and Aarin ...
(Date:2/8/2016)... ... February 08, 2016 , ... Thomas ... is the Executive Vice President for Corporate Services and the Chief Financial Officer ... Payable, Payroll, Billing Operations, Treasury, Managed Care Contracting, Supply Chain, and Investments. , ...
(Date:2/8/2016)... Calverton, Maryland (PRWEB) , ... February 08, 2016 , ... ... our BSI Web product. The upgrade represents a completely new technical foundation and ... Engage will offer a responsive design interface, significantly increased speed for search results, a ...
Breaking Biology Technology:
Cached News: