Navigation Links
ISU researcher identifies genetic pathway responsible for much of plant growth
Date:5/20/2009

AMES, Iowa -- Researchers at Iowa State University have discovered a previously unknown pathway in plant cells that regulates plant growth.

Yanhai Yin, an assistant professor in genetics, development and cell biology, examined signaling mechanisms of a plant hormone called brassinosteroids. The hormone controls the growth of cells.

The brassinosteroids (BRs) have a major impact on how large the plant grows, says Yin.

"Previously, we knew that steroids promote growth," said Yin. "In model plants like Arabidopsis (a relative of mustard) and crops such as corn and rice, if you have more steroids, you have more growth, and if you have less steroids, you have less growth and the plant is smaller."

Now Yin knows that the HERK1 (named for Hercules -- the Greek and Roman god who possessed superhuman strength) pathway, induced by BRs, is controlling much of that growth.

Yin and his team's findings are in the May 5 edition of the journal Proceedings of the National Academy of Sciences of the United States of America.

There are many other internal and external factors such as light, nutrition and hydration that effect plant growth, but the HERK1, along with some unknown signals, have a great effect.

Yin and his team of Hongqing Guo, assistant scientist; Lei Li, Huaxun Ye, and Xiaofei Yu, all graduate students; and Alexandria Algreen, undergraduate student; have shown that by over-expressing HERK1, they were able to increase a plant's size by 10 to 15 percent.

By under-expressing HERK1, the plants were about 50 percent smaller.

Now Yin and his group are trying to find what regulates HERK1 and how HERK1 controls growth.

Understanding what make plants get bigger could be a critical component when producing grain and bio-mass for biofuels.

"With that knowledge, maybe we have one more tool to manipulate corn and rice if we want more grain, or if we want more mass for bio-energ
'/>"/>

Contact: Yanhai Yin
yin@iastate.edu
515-294-4816
Iowa State University
Source:Eurekalert

Page: 1 2

Related biology news :

1. MCG researcher among first to receive NIH stimulus funding
2. UCSD researchers make first direct observations of biological particles in high-altitude ice clouds
3. 3-D kidney atlas created for researchers and physicians
4. Researchers gain genome-wide insights into patterns of the worlds human population structures
5. UMMS researchers isolate first neuroprotective gene in patients with amyotrophic lateral sclerosis
6. NOAA researchers: Blue whales re-establishing former migration patterns
7. OHSU researchers study the idling brain
8. Hebrew University researchers neutralize tumor growth in embryonic stem cell therapy
9. Researchers find snippet of RNA that helps make individuals remarkably alike
10. Stowers researchers develop whole genome sequencing approach for mutation discovery
11. Pfizer supports open access publishing for researchers in low-income countries
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/20/2015)... , Aug. 20, 2015 The wearable ... that are active and healthy. However, wearable technology ... hospital environment to help improve diagnostic capabilities and ... from the Wearable Technologies Conference 2015 , ... applications for wearables in healthcare.    ...
(Date:8/18/2015)... PRINCETON, N.J. , Aug. 18, 2015 ... be a key contributor to the Submission ... hosted by IRISS, a non-profit forum. Dedicated to ... IRISS provides a neutral platform for industry, ... to share information and work towards a ...
(Date:8/12/2015)... SPRINGS, Florida , August 12, 2015 ... the pace of mobile payment innovation and advanced biometrics ... to replace the way consumers rely on using their ... ahead with reinventing the future for payment services led ... (NASDAQ: NXTD ), :  Google, Inc. (NASDAQ: ...
Breaking Biology News(10 mins):Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 2Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 3Navitas, a Key Contributor in IRISS Forum Webinar 2Navitas, a Key Contributor in IRISS Forum Webinar 3Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 2Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 3Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 4Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 5Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 6
... WASHINGTON A recently published paper by two George Washington University ... habitually barefoot people in Kenya due to speed and other ... ground. These results are counter to the belief that barefoot ... a Ph.D. student in the Hominid Paleobiology doctoral program at ...
... Fellow Anne Ruffing has engineered two strains of cyanobacteria ... fuels, but she has also found that the process ... might be one way to reduce the nation,s dependence ... they are powered by sunlight. They also could reduce ...
... nearly a century ago changed diabetes from a death ... that includes researchers from Case Western Reserve University School ... dramatic improvements in the lives of people managing diabetes. ... interacts with cells, the international group of scientists finally ...
Cached Biology News:GW researchers find variation in foot strike patterns in predominantly barefoot runners 2Engineering alternative fuel with cyanobacteria 2Engineering alternative fuel with cyanobacteria 3After decades of research, scientists unlock how insulin interacts with cells 2After decades of research, scientists unlock how insulin interacts with cells 3
(Date:9/1/2015)... YORK , Sept. 1, 2015 /PRNewswire-USNewswire/ ... of cancer death in American men. One ... cancer and 233,000 new cases are diagnosed annually. ... experts are using a powerful new technique, ... small and large cancer lesions, treating only the ...
(Date:9/1/2015)... ... September 01, 2015 , ... In her thought provoking debut novel ‘ ... a not-so-distant future faced with an Ebola pandemic that is on the cusp of ... to enter the world of counterterrorism, and who continues to appear in this series ...
(Date:9/1/2015)... ... September 01, 2015 , ... ... , Equine cervical facet joint problems can be caused by injuries and ... cause impingement of nerve roots or of the spinal cord itself. This can ...
(Date:9/1/2015)... ... 01, 2015 , ... Leading CEOs, CSOs, CMOs, and heads ... join prominent academics and key investors for Neuro Advance Boston, October 14, 2015 ... , Neuro Advance Boston focuses on the latest developments and opportunities in ...
Breaking Biology Technology:September Is Prostate Cancer Awareness Month 2September Is Prostate Cancer Awareness Month 3September Is Prostate Cancer Awareness Month 4Alexi Venice’s Debut Novel Takes on the Human Testing of a Vaccine for Ebola and Revenge by an Anti-Big Pharma Terrorist Group in ‘Ebola Vaccine Wars' 2Alexi Venice’s Debut Novel Takes on the Human Testing of a Vaccine for Ebola and Revenge by an Anti-Big Pharma Terrorist Group in ‘Ebola Vaccine Wars' 3VetStem Biopharma Announces New Clinical Research Program for Equine Cervical Facet Joint Disease 2VetStem Biopharma Announces New Clinical Research Program for Equine Cervical Facet Joint Disease 3Neuro Advance Boston Brings Together Leading Neuroscience Experts on October 14 at Harvard Medical School 2
... 2012 ValGenesis, Inc., a world-class provider of ... its innovative ValGenesis Suite 2.5 has achieved SAP ... platform. Attaining this certified integration status deepens ValGenesis, ... The SAP Integration and Certification Center (SAP ...
... 2012  VolitionRX Limited (VNRX.OB), a life sciences company focused ... with Abcodia, a specialist company spun out from University ... to Abcodia,s biobank of over 5,000,000 human serum samples ... The samples, which were collected by scientists at UCL, ...
... ago, MIT professors Robert Langer and Michael Cima had ... that would deliver drugs after implantation in a patient,s ... MicroCHIPS Inc. reported that they have successfully used such ... drug normally given by injection. The results, published ...
Cached Biology Technology:ValGenesis Suite 2.5 Certified by SAP as Powered by SAP NetWeaver® 2ValGenesis Suite 2.5 Certified by SAP as Powered by SAP NetWeaver® 3Volition Signs Collaboration Agreement With Abcodia 2Volition Signs Collaboration Agreement With Abcodia 3Successful human tests for first wirelessly controlled drug-delivery chip 2Successful human tests for first wirelessly controlled drug-delivery chip 3
...
Sheep polyclonal to Quinolone ( Abpromise for all tested applications). Antigen: Norfloxacin(N)conjugated to BSA...
Certified U.S. origin. Bovine Serum:, *Certified U.S. origin. Available raw, nonsterile filtered, or sterile filtered. , , *Sterility tested , , *Low Hemoglobin levels , , *Mycoplasma testing upon...
...
Biology Products: