Navigation Links
Root or shoot
Date:2/28/2010

LA JOLLA, CAThe first order of business for any fledgling plant embryo is to determine which end grows the shoot and which end puts down roots. Now, researchers at the Salk Institute expose the turf wars between two groups of antagonistic genetic master switches that set up a plant's polar axis with a root on one end and a shoot on the other.

"In what is arguably the most important decision for a plant, setting up the root/shoot axis, occurs during the early embryonic stages," says the study's lead author Jeffrey A. Long, Ph.D., an assistant professor in the Plant Molecular and Cellular Biology Laboratory. "A tightly controlled balancing act between two groups of transcriptions factors ensures that they stay where they belong and don't get into each other's way."

Plant embryogenesis establishes a very simple structure that contains two stem cell populations: the shoot meristem, which will give rise to all the "above-ground" organs such as the stem, the leaves and the flowers, and is the site of photosynthesis; and the root meristem, which gives rise to the root system, which lies below the ground and provides water and nutrients to the plant.

"Since plant stem cells ultimately give rise to all edible parts of plants understanding how their fate and function are regulated can be directly applied to modify the architecture of plants and to increase the yields of agriculturally important crops," says Long.

The Salk researchers' findings are published in the Feb. 28, 2010 advance online edition of the journal Nature.

"This work shows how genes interact in complex ways to establish organs along the root-shoot axis," said Susan Haynes, Ph.D., who oversees developmental biology grants at the NIH's National Institute of General Medical Sciences. "The study reveals important parallels with the gene networks that coordinate organ formation in animal embryos, and helps us understand the critical mechanisms that guide
'/>"/>

Contact: Gina Kirchweger
kirchweger@salk.edu
858-453-410-01340
Salk Institute
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Root or shoot? EAR calls the shots
2. Origin of root offshoots revealed
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Root or shoot
(Date:8/27/2014)... requires nerve cells to rearrange existing patterns of activity ... patterns, a study of monkeys has found. The scientists ... electrical activity of brain cell networks. The study was ... "We looked into the brain and may have seen ... said Aaron Batista, Ph.D., an assistant professor at the ...
(Date:8/27/2014)... By manipulating neural circuits in the brain of ... specific memories. The research, led by Howard Hughes ... Institute of Technology (MIT), reveals that the connections ... contextual information about an experience and the part ... of that experience are malleable. , Altering ...
(Date:8/27/2014)... 27, 2014 University of Utah biologist agan Sekercioglu, ... has won that nation,s highest science prize, which is ... Sekercioglu is among five researchers picked for 2014 the ... Council of Turkey. Three researchers won the Science Award ... Award, which is equivalent to the Science Award but ...
Breaking Biology News(10 mins):Scientists plug into a learning brain 2Scientists plug into a learning brain 3Researchers change the emotional association of memories 2Researchers change the emotional association of memories 3Researchers change the emotional association of memories 4University of Utah biologist wins Turkey's top science prize 2
... A new study released today in the EarlyView of ... Alaska, highlighting a shift in biomes caused by a ... Woods Hole Research Center and three other institutions based ... extensive and unique tree-ring data set. Patterns observed support ...
... Denmark revealed that increasing levels of non-fasting triglycerides are ... men and women. Higher cholesterol levels were associated with ... novel, 33-year study are now available online in ... on behalf of the American Neurological Association. ...
... successfully being used in clinical trials to treat patients with ... die, it also forces them to release pro-inflammatory chemokines and ... attack the disease. New research published by BioMed Central,s open ... infected cancer cells secrete proteins which, even when isolated, result ...
Cached Biology News:New study illustrates shifting biomes in Alaska 2Increasing triglyceride levels linked to greater stroke risk 2
(Date:8/27/2014)... YORK , Aug. 27, 2014 ... is available in its catalogue: Global ... http://www.reportlinker.com/p02316662/Global-Chelating-Agents-Market-2014-2018.html About Chelating Agent A ... form covalent bonds with metal ions, thereby forming ... that some metal-ions have on chemical processes, formulations, ...
(Date:8/27/2014)... 2014 “We are honored to be ... Ven Thangaraj, CEO of Radiant Sage. “We are offering ... the imaging corelab market to a different level. ... organizations to efficiently and effectively manage the massive amounts ... be analyzed and read by trained physicians. Being recognized ...
(Date:8/27/2014)... , Aug. 27, 2014 Research and ... "Global Enzyme for Pulp & Paper Industry Report 2014" ... Global Enzyme for Pulp & Paper Industry Report 2014 ... state of the global enzyme for pulp & paper ... of the industry including definitions, classifications, applications and industry ...
(Date:8/27/2014)... Florida (PRWEB) August 27, 2014 ... (SCI) is announcing the creation of the Sancilio ... to take the SCI’s philosophy of looking to ... research and development actions are based on sound ... new Scientific Advisory Board provides a vehicle for ...
Breaking Biology Technology:Global Chelating Agents Market 2014-2018 2Global Chelating Agents Market 2014-2018 3Global Chelating Agents Market 2014-2018 4Radiant Sage Named to CIOReview List of 100 Most Promising Technology Companies 2Global Enzyme for Pulp & Paper Industry Report 2014 2New Sancilio & Company, Inc. Scientific Board 2New Sancilio & Company, Inc. Scientific Board 3
... , CRACKS AMAZON.COM BEST SELLER LIST IN ... of top ten best selling science books , SEATTLE, Nov. ... a new book about the controversial theory of intelligent design made ... just as the world marks 150 years since Charles Darwin published ...
... ... Prospects Forum breakfast series serves as a vehicle to educate investors and the greater ... capital markets. , ... New York, NY (PRWEB) November 17, 2009 -- China Business Knowledge (CBK) ( www.chinabusinessknowledge.com ...
... CORALVILLE, Iowa, Nov. 17 Vivakor, Inc. (OTC Bulletin Board: ... dividend of shares of common stock of HealthAmerica, Inc., a ... outstanding common stock. Each Vivakor shareholder will be entitled ... share of Vivakor common stock beneficially owned on the record ...
Cached Biology Technology:Intelligent Design Book Delivers Blow to Darwin 2China Business Knowledge Launches “China Prospects Forum” -- Dec. 9, 2009, New York City 2Vivakor, Inc. Announces Stock Dividend 2Vivakor, Inc. Announces Stock Dividend 3Vivakor, Inc. Announces Stock Dividend 4
... The ImageXpressULTRA imaging system ... true point-scanning confocal system for automated ... high throughput cell-based screening. ImageXpressULTRA ... software solution for screening acquisition, image ...
... Assay is an anchorage-independent growth assay in ... stringent assay for detecting malignant transformation of ... with carcinogens or carcinogen inhibitors) are cultured ... for 21-28 days. Following this incubation ...
... The BD CARV II Confocal Imager ... an easy to use and cost effective ... microscope. High speed multi-point confocal scanning, combined ... photobleaching and allows real-time imaging and recording ...
... Gels easier and more efficient by providing ... types of pre-cut pre-assembled membrane/filter paper sandwiches ... cm E-PAGE Gels*. The available nitrocellulose and ... transfer of proteins (Figure 1 Table 1). ...
Biology Products: