Navigation Links
Unlocking the secrets of a plants light sensitivity
Date:12/13/2010

inosteroid. Previous studies showed that mutant plants created to be deficient in brassinosteroid grew as if they were in the light, even when in the dark. Research also showed that many genes responded to stimulation from light and brassinosteroid in opposite ways. But scientists were unsure how this antagonistic process worked, especially after they found the levels of brassinosteroid in plant cells were not significantly different between plants grown in the dark or in the light.

The Carnegie team's new research identifies a protein called GATA2 as a missing link in this communications system. This protein tells developing seedlings which type of growth to pursue.

GATA2 is part of the GATA factor class of proteins, which are found in plants, fungi and many animals. GATA factors promote the construction of a variety of new proteins, the recipes for which are encoded in DNA. It does this by switching on and off different genes. In Arabidopsis, the experimental mustard plant used in this study, there are 29 genes for different members of the GATA factor family. Some of these have been demonstrated to play a role in flower development, the metabolism of carbon and nitrogen, and the production of the green pigment chlorophyll.

Wang's team found that GATA2 switches on many genes that are turned on by light but turned off by brassinosteroid. It then showed that brassinosteroid inhibits the production of GATA2 and light stabilizes the presence of GATA2 protein in plant cells.

First, the team showed that GATA2 functions to turn on select plant growth genes in the presence of light. The scientists genetically manipulated Arabidopsis plants to cause the GATA2 protein to be overproduced. As a result, the plants started to show patterns of growing in light, even when they were in the dark. This manipulation demonstrates that GATA2 is a major promoter of light-type growth.

What's more, this is the same reaction that was produced
'/>"/>

Contact: Zhi-Yong Wang
zywang24@stanford.edu
650-325-1521
Carnegie Institution
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Unlocking the secret of the bladders bouncers
2. Unlocking mysteries of the brain with PET
3. Unlocking the opium poppys biggest secret
4. Unlocking the secrets of RNA biology with WIREs
5. Unlocking the secrets of a plant’s light sensitivity
6. The making of Dig It! the Secrets of Soil exhibit
7. Landmark study unlocks stem cell, DNA secrets to speed therapies
8. Uncovering secrets of life in the ocean
9. Expeditions reveal gulf of Californias deep sea secrets, as well as human imprints
10. DNA testing may unlock secrets of medieval manuscripts
11. Caltech researchers help unlock the secrets of gene regulatory networks
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/10/2014)... WINSTON-SALEM, N.C. , Dec. 9, 2014  Wake Forest ... medical education building for its School of Medicine. Funding ... a larger capital campaign that will be publicly launched ... will be located in the former 60 series R.J. ... Forest Innovation Quarter. Construction will begin immediately with plans ...
(Date:12/10/2014)... , Dec. 08, 2014 Research and Markets ... addition of the "Biometrics Market in Japan ... http://photos.prnewswire.com/prnh/20130307/600769 The ... such as rural banking and upgradation of the ... witnessed in the market. Besides the aforementioned projects, ...
(Date:12/5/2014)... 2014 Increased emphasis on product quality, ... testing and inspection technologies. The convergence of industries ... range of innovative test solutions. This trend is ... which is generally more inclined towards communication, media ... strategies of test equipment vendors will cater to ...
Breaking Biology News(10 mins):Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 4Biometrics Market in Japan 2014-2018: Key Vendors are DDS, Fujitsu, Hitachi and NEC 2Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 2Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 3Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 4
... estrogen receptors are more difficult to treat than ... Meeting 2013 demonstrates an investigational drug, Paragazole, that ... and that increases the sensitivity of these cells ... do is use triple-negative breast cancer models to ...
... identified four genes newly associated with severe childhood obesity. ... variations in severely obese children. The team found ... help to maintain protein receptors known to be involved ... targets for the development of new drugs against obesity. ...
... biologist at the Florida State University College of Medicine ... closer to understanding how life first emerged on Earth ... team produced data supporting the idea that 10 amino ... years ago were capable of forming foldable proteins in ...
Cached Biology News:Finding genes for childhood obesity 2Researcher offers clues on the origins of life 2Researcher offers clues on the origins of life 3
(Date:12/24/2014)... Vermillion, Inc. (Nasdaq:   VRML), a ... today that investors including Oracle Investment Management, ... several Vermillion directors have agreed to purchase approximately ... stock and warrants to purchase unregistered shares of ... Under the terms of the private ...
(Date:12/22/2014)... Malvern, PA & Brussels (PRWEB) December 22, 2014 ... Education (CfPIE), the global leader of technical training ... Society for Clinical Data Management (SCDM) to ... training and certification programs —providing access to the ... The partnership extends SCDM members with 10% off when ...
(Date:12/22/2014)... MISSION VIEJO, Calif. , Dec. 22, 2014 /PRNewswire/ ... announce that CoPatient, an online medical bill review and ... newest offering in the FREE WellCard Savings discount health ... a medical bill that was more than they expected ... help members reduce health care costs, WellCard Savings is ...
(Date:12/19/2014)... 19, 2014 Charm Sciences is pleased ... the Detection of Aflatoxin M1 in raw commingled milk ... third party validation. The peer reviewed report of the ... Institute for Agricultural and Fisheries Research (ILVO-T&V) has been ... Aflatoxin B1, the most toxic aflatoxin and a known ...
Breaking Biology Technology:Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 2Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 3Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 4Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 5CfPIE Announces Partnership with the Society for Clinical Data Management 2CfPIE Announces Partnership with the Society for Clinical Data Management 3WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2Charm Sciences Achieves Independent Validation of First 15 Minute Quantitative Screening Method for Aflatoxin M1 2
... Complex(TM) Targets the ... Aging, EL SEGUNDO, Calif., Sept. 24 With ... AHA,s, and the,category of Internal Skincare(R), now Dr. Howard ... Murad Inc. and author of,Wrinkle-Free Forever and The Cellulite ...
... Expands Life Sciences Company,s Leadership Team, INDIANAPOLIS, ... leader in short-term and long-term biomaterials storage,sample management ... a,local life sciences leader, joins the company as ... this newly created position, Ball is responsible for ...
... Memory and Cognition Validate Clinical ... ... AMRN ) ("Amarin" or "Company") announced that the results ... (EPA) have been published in the "Journal of,Neurochemistry" (Minogue AM ...
Cached Biology Technology:Murad Boosts Skin Immunity With the New Murad(R) Professional Line 2BioStorage Technologies Appoints Lori Ball as Vice President 2BioStorage Technologies Appoints Lori Ball as Vice President 3Amarin Announces Publication of Pre-Clinical Memory Data in Journal of Neurochemistry 2Amarin Announces Publication of Pre-Clinical Memory Data in Journal of Neurochemistry 3Amarin Announces Publication of Pre-Clinical Memory Data in Journal of Neurochemistry 4Amarin Announces Publication of Pre-Clinical Memory Data in Journal of Neurochemistry 5
... Custom Synthesis Service provides you ... to knockdown any gene. We ... base pairs with terminal dT ... other lengths of your choice. ...
... is ideal for developing single and multi-analyte ... contains the new, improved, and user friendly ... can design specific templates for commercial or ... integrated graphing and data regression capabilities; the ...
Polyclonal Antibody to HADHB...
3T3 cells (RSV-transformed) Source: Cell Lysate Form: Ready to Use Application: Western Blotting Control...
Biology Products: