HOME >> BIOLOGY >> NEWS
2-protein team would be lost without each other

DURHAM, N.C. -- Just as a hard-charging person sometimes needs a calming partner to be more effective, so it is with a pair of critical proteins that promote cell division and growth in the rapidly expanding root tip of plants.

One of the pair, a molecule called Scarecrow, physically restrains its highly influential counterpart from going farther than it should and doing more work than is needed.

As a result of this restraint, Scarecrow and its partner, called Short-root, manage to assemble a single ring of waterproofing that enables the plant to perform the critical function of controlling how much water and nutrient it takes in via the root.

"Knowing more about how plants developed this key ability to keep water out and let nutrients in is another step toward engineering plants that may be used to replace fossil fuels," said Duke biologist Philip Benfey. "It's also another step toward a better understanding of how humans work."

This emerging picture of the complex interplay between genes and proteins is the latest finding to come from Benfey's examination of the model mustard plant Arabidopsis thaliana.

"It's a simple model for us to get at some very complex relationships between genes and proteins and cells," said Benfey, the Paul Kramer Professor of Biology and director of Duke's new Center for Systems Biology in the Institute for Genome Sciences & Policy.

Benfey and Duke postdoctoral fellow Hongchang Cui published the findings in the April 20, 2007, issue of the journal Science. The research was supported by the National Institutes of Health.

The fast-growing root tip of Arabidopsis is literally a timeline of how generic, undifferentiated cells reach various specialized fates and begin doing specific tasks within the plant. It is also a perfectly symmetrical structure that can be easily sectioned, viewed and photographed.

There are 17 different cell types in the root tip, arising
'"/>

Contact: Karl Leif Bates
karl.bates@duke.edu
919-681-8054
Duke University
19-Apr-2007


Page: 1 2 3

Related biology news :

1. AAAS analysis finds Congress would add billions to FY 2008 R&D investment
2. The bee that would be queen
3. Smallpox outbreak: How long would it take for vaccines to protect people? Would it work?
4. Healthy coastal wetlands would adapt to rising oceans
5. Is it ethical for scientists to do research abroad that would be forbidden at home?
6. Designer babies - what would you do for a healthy baby?
7. New discovery: If it werent for this enzyme, decomposing pesticide would take millennia
8. Proposal would allow wild animals to roam North America
9. Cookbook recipes would cure disease with nontoxic DNA delivery systems
10. Passage of Marin County GMO ban would encourage widespread use of harsh pesticides
11. Passage of GMO ban in San Luis Obispo would encourage use of harsh pesticides

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


(Date:2/7/2020)... ... 07, 2020 , ... dicentra , a leading clinical ... and dietary supplement industries, announces 2020 membership with the International Probiotics Association (“IPA”). ... pertaining to probiotics. We are thrilled to join our IPA member colleagues and ...
(Date:2/5/2020)... ... February 04, 2020 , ... Crystal Diagnostics (CDx) ... a second patent related to proprietary liquid crystal technology for rapid and accurate ... the USPTO issued on December 3, 2019. Together, these patents protect the company’s ...
(Date:1/30/2020)... , ... January 30, 2020 , ... Accelera Canada ... eye on the Canadian market, is pleased to announce that the company has opened ... since the company launched in 2017. , “We are so thrilled to now ...
Breaking Biology News(10 mins):
(Date:1/27/2020)... , ... January 27, 2020 , ... ... it has secured financing from strategic investors led by Halma plc , ... existing investors Sonion, TDF Ventures, GII LLC, and WSJ Joshua Fund. A representative ...
(Date:1/23/2020)... ... January 22, 2020 , ... Ideal Implant ... surgery industry at two recent North American investor forums specializing in medical advancements. ... Medical Technologies & Diagnostics Forum on November 21, 2019 in New York City, ...
(Date:1/22/2020)... ... 21, 2020 , ... QCDx , a private biotech company that has ... today announced the sale of the proprietary RareScope™ instrument to the Carole and Ray ... clinical cancer research. , “The RareScope can detect and isolate intact and live Circulating ...
(Date:1/8/2020)... ... 2020 , ... Anomet Products has introduced new ... in harsh environments inside or outside of the human body. , ... to achieve specific properties such as corrosion-resistance, biocompatibility, or operation at temperatures from ...
Breaking Biology Technology:
Cached News: