HOME >> BIOLOGY >> NEWS
Purdue researchers solve decades-old corn, sorghum problem

nd improved stalk strength and quality, Johal said.

Johal and his colleagues found that loss of a gene product called a p-glycoprotein generates these dwarf corn and sorghum plants by interfering with the movement of auxin, an essential hormone in plant growth and development. They also have identified the genetic mechanism that causes dwarf sorghum plants to spontaneously revert to a taller form.

In corn, the normal gene Br2 produces a p-glycoprotein, and the researchers found that a mutation in this gene is responsible for the altered growth of the dwarf plant. They also found that the dwarf mutants, while shorter than their taller counterparts, have more cells per unit area in the stalk, which makes the stalks stronger and perhaps more effective at retaining water.

Although p-glycoproteins are involved in transporting molecules across cell membranes, their exact function still has not been conclusively shown.

"This finding in br2 dwarf mutants demonstrates the 'real-world' impact of research involving model plants," said Angus Murphy, assistant professor of horticulture and a collaborator on the study. Murphy recently demonstrated that in Arabidopsis, a plant commonly used as a model system in plant genetics and molecular biology, mutations in a p-glycoprotein gene similar to Br2 disrupt auxin flow, leading to alteration of the plant's form.

"After discovering that p-glycoproteins control hormonal movement in Arabidopsis, we were able to apply that information to demonstrate that the same mechanism underlies a well-described phenomenon in corn," Murphy said. "The kind of collaboration that produced this discovery is one of the unique characteristics of the Purdue research environment."

Johal and Murphy work in different academic departments located in different buildings - but they both agree that the combination of their diverse areas of expertise was key to their success.

"This study has been a perfect mat
'"/>

Contact: Jennifer Cutraro
jcutraro@purdue.edu
765-496-2050
Purdue University
2-Oct-2003


Page: 1 2 3 4

Related biology news :

1. Purdue study finds antioxidant protects metal-eating plants
2. Bright idea could doom cancer and viruses, say Purdue scientists
3. Purdue yeast makes ethanol from agricultural waste more effectively
4. IU and Purdue scientists to answer questions about Brood X periodical cicadas
5. Purdue scientists finding ways to outsmart crop-damaging bugs
6. Chestnut trees to spread across landscape again, says Purdue scientist
7. Purdue scientists: To stop cancer, keep your Icmt away from your Ras
8. Purdue chemists put the twist on protein building block
9. Purdue scientists: Genetically modified fish could damage ecology
10. Fat cells fight disease, Purdue University researchers find
11. Purdue chemist mussels in on secrets of natural adhesives

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Purdue researchers solve decades old corn sorghum problem

(Date:7/30/2014)... been awarded the Scientific Committee on Antarctic Research,s ... , SCAR, an inter-disciplinary international science body, initiates, ... in the Antarctic region, and on the role ... The organisation also provides scientific advice about Antarctica ... the region. , The medal is open internationally ...
(Date:7/30/2014)... the roughly 3,000 pieces is still in its infant ... will be of major significance. "Amazingly often, we are ... Fushun amber that we found in Baltic amber," explained ... Baltic amber comes from the Baltic Sea region, which ... finds are, e.g., the coastal regions of Mecklenburg, Poland ...
(Date:7/29/2014)... BELLINGHAM, Washington, USA The advanced optical methods and ... are driving a revolution in the neurosciences were the ... published by SPIE, the international society for optics and ... of the BRAIN Initiative in the United States, and ... vision for and provide examples of the impact that ...
Breaking Biology News(10 mins):Chinese mosquitos on the Baltic Sea 2SPIE launches Neurophotonics journal with special section on BRAIN Initiative 2SPIE launches Neurophotonics journal with special section on BRAIN Initiative 3
(Date:7/30/2014)... (PRWEB) July 30, 2014 While ... in health services research for a relatively long ... in interest regarding the use of these ‘big ... conditions. , By combining today’s powerful computer technology ... digital era, ‘big data’ holds significant promise for ...
(Date:7/30/2014)... July 30, 2014 July 30, 2014. ... a biotechnology firm that provides DNA-based authentication and security ... Ph.D. Vice President of Life Sciences, a newly created ... , Dr. Hogan will lead APDN’s drive to build ... with biotech and healthcare customers, provide guidance to APDN’s ...
(Date:7/30/2014)... July 30, 2014  Dyadic International, Inc. ("Dyadic") ... patented and proprietary technologies are used to discover, ... for the bioenergy, bio-based chemical, biopharmaceutical and industrial ... "Tom" Dubinski as Vice President and Chief Financial ... financial and information technology operations for Dyadic and ...
(Date:7/30/2014)... NCERC at Southern Illinois University Edwardsville ... on corn stover pretreatment methods at a U.S. ... D.C. , “Arun’s selection for presentation at ... to the success of our postdoctoral fellowship program,” ... foresight and vision of SIUE and the Illinois ...
Breaking Biology Technology:Leveraging ‘Big Data’ - Methodological Considerations in Health Services Research, New Webinar Hosted by Xtalks 2Dr. Michael E. Hogan, Ph.D., Joins Applied DNA Sciences as Vice President, Life Sciences 2Dr. Michael E. Hogan, Ph.D., Joins Applied DNA Sciences as Vice President, Life Sciences 3Thomas Dubinski joins Dyadic as Chief Financial Officer 2Thomas Dubinski joins Dyadic as Chief Financial Officer 3Thomas Dubinski joins Dyadic as Chief Financial Officer 4NCERC at SIUE Researcher Takes Stage at Department of Energy Conference 2NCERC at SIUE Researcher Takes Stage at Department of Energy Conference 3
Cached News: