Navigation Links
Lighting up the plant hormone 'command system'
Date:7/22/2012

is found throughout the plant kingdom and regulates many aspects of growth and development.

Mutant plants that are deficient in brassinosteroid that are grown in the dark, show features of plants grown in the light. They also have defects at many phases of the plant life cycle, including reduced seed germination, dwarfism, and sterility.

The physiological effects of brassinosteroids are very similar to those of gibberellin, another hormone. But the relationship between these two hormones has been unclear at the molecular level. Recent studies of Wang and his colleagues have elucidated the molecular pathway through which brassinosteroid alters gene expression and explored the relationship of the two hormones.

In the two Nature Cell Biology papers, Wang and his team identified key junctions between the molecular pathway that transduces the brassinosteroid signal and those for the light, temperature, and gibberellin signals. The studies explain how multiple environmental and hormonal signals regulate plant growth and development. The studies also elucidate a biochemical "command system" that integrates a wide range of signals into growth regulation.

In contrast to the widely held concept that environmental signals affect endogenous hormones to alter plant growth, the study by Wang found surprisingly that light does not affect brassinosteroid. Instead, brassinosteroid has major effects on the sensitivity of plants to light by not only altering the levels of proteins mediating light responses, but also providing an essential partner for a transcription factor, named PIF4, that is directly inactivated by the photoreceptor phytochrome. The brassinosteroid-activated BZR1 protein and dark-stabilized PIF4 protein form a complex that drives expression of genes required for the etiolation process.

By contrast, light removal of PIF4, or the absence of BZR1 caused by brassinosteroid deficiency, leads to de-etiolation and inhibi
'/>"/>

Contact: Zhiyong Wang
zywang24@stanford.edu
650-739-4205
Carnegie Institution
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Highlighting molecular clues to the link between childhood maltreatment and later suicide
2. The future of plant science - a technology perspective
3. The future of plant science a technology perspective
4. Bone marrow transplant arrests symptoms in model of Rett syndrome
5. American Society of Plant Biologists honors early career women scientists
6. Not just for the birds: Man-made noise has ripple effects on plants, too
7. Plant DNA speaks English, identifies new species
8. Human noise has ripple effects on plants
9. New databases harvest a rich bounty of information on crop plant metabolism
10. Plant research reveals new role for gene silencing protein
11. Plants mimic scent of pollinating beetles
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... wrong with your muscles because of age, disease or injury, ... That,s where a new research report published in the October ... comes in. In the report, a team of scientists produce ... scientists "see" which genes are active in an organ at ... and that men have approximately 400 more active genes in ...
(Date:9/30/2014)... MILFORD, Mass. , Sept. 30, 2014 ... process control solutions for the biotech and ... of its new RECONN Bioprocess Manager, an ... reporting solution geared towards bioprocess development laboratories. ... facilities have disparate bioreactor and analyzer systems. ...
(Date:9/30/2014)... Sept. 30, 2014 Winners of The Economist,s ... Summit scheduled to take place at the JW Marriott Hong Kong ... award winners will share their experiences and the lessons those hold ... a proven innovation over the past decade, will be presented at ... before the summit. It will be the first time the ceremony ...
Breaking Biology News(10 mins):Scientists identify which genes are active in muscles of men and women 2Spectra Automation Introduces RECONN Bioprocess Manager 2Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 2Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 3Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 4Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 5Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 6Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 7
... A recent report in Cancer Epidemiology, Biomarkers & Prevention ... adds to the growing evidence that fish oil supplements may ... at the Fred Hutchinson Cancer Research Center in Seattle, Wash., ... health sciences division, asked 35,016 postmenopausal women who did not ...
... combat some age-related diseases, such as cancer and diabetes, ... and cellular processes governing aging. The underlying theory is ... span can be extended, it may delay the onset ... these molecular processes, researchers at the University of Massachusetts ...
... engineers at Purdue University have developed a new method ... and they are proposing the creation of mobile processing ... fuels. "What,s important is that you can ... chips, switch grass, corn stover, rice husks, wheat straw ...
Cached Biology News:Fish oil may reduce risk of breast cancer 2Biologists identify a new clue into cellular aging 2New biofuels processing method for mobile facilities 2New biofuels processing method for mobile facilities 3
(Date:10/1/2014)... October 01, 2014 Slone Partners ... Therapeutics, Healthcare IT, and Laboratory Testing industries, reported a ... at the director level and above from July 2013 ... stay on top of rapid breakthroughs in diagnostics, reimbursement ... diagnostic companies have been forced to fold, consolidate, or ...
(Date:10/1/2014)... -- Industry leaders from retail pharmacies ... the theme, ,Commercial Opportunities in the Era of Reform, ... Elsevier , a world-leading provider of scientific, technical ... gathering of some of the industry,s most prominent healthcare ... and in the future. The Elsevier Healthcare ...
(Date:9/30/2014)... a bio-mimicking analog of one of nature,s most ... research team led by Alejandro Briseno of the ... step in developing long-sought polymer architecture to boost ... in electronic devices. , Briseno, with colleagues ... at Stanford University and Dresden University of Technology, ...
(Date:9/30/2014)... YORK , Sept. 30, 2014 ... to kill nematodes. Nematodes are microscopic parasitic roundworms, ... water, and inside other plants and animals. Nematicides ... volatility or other properties promoting migration through the ... more than 1,000 plant-parasitic nematodes. With more than ...
Breaking Biology Technology:Slone Partners Meets Growing Demand as Industry Focuses on Reimbursement & Regulation 2Elsevier Healthcare and Pharmaceutical Economics Conference 2014 To Convene Industry Leaders to Discuss Top Healthcare Business Issues 2Elsevier Healthcare and Pharmaceutical Economics Conference 2014 To Convene Industry Leaders to Discuss Top Healthcare Business Issues 3Blades of grass inspire advance in organic solar cells 2Blades of grass inspire advance in organic solar cells 3Nematicides Market by Types (Fumigants, Organophosphates, Carbamate and Bio-Nematicides), Applications (Agrochemicals, Industrial, and Others), and Geography (North America, Europe, Asia-Pacific & ROW) - Global Trends & Forecasts to 2019 2
... DD ),today announced the addition of Deepak ... Biotechnology Advisory Panel. They join the ranks of,six ... to the,broad area of biotechnology and its application ... a professor of Genetics and Vice Chancellor for ...
... will help commercialize innovative technologies for early lung ... ... Inc. (OTC,Bulletin Board: BMOD) ( http://www.biomoda.com ), a development stage medical,diagnostics ... Lambros, and Lewis White, to its Board of,Directors. The Board Members, ...
... 5 /PRNewswire-FirstCall/ - Spectral Diagnostics Inc. (TSX:,SDI) today ... Toray,Medical Co. Ltd. for the marketing and sale ... cleared assay for the measurement of,endotoxin. Under the ... access to Toray,s distributors in new geographic territories,including ...
Cached Biology Technology:DuPont Strengthens Commitment to Responsible Science with New Biotech Advisory Panel Members 2DuPont Strengthens Commitment to Responsible Science with New Biotech Advisory Panel Members 3Biomoda Appoints Three Business Leaders to Board of Directors 2Biomoda Appoints Three Business Leaders to Board of Directors 3Spectral and Toray expand collaboration to include new geographic territories 2Spectral and Toray expand collaboration to include new geographic territories 3
Goat polyclonal to HA1 ( Abpromise for all tested applications). Antigen: Synthetic peptide: TLGSCRERQPEFV from the C terminus of human HA1. Entrez GeneID: 23526 Swiss Protein ID: O78181...
... Capture high-resolution chemiluminescent and bioluminescent ... High-sensitivity camera is cooled to subzero ... dynamic range for high quality images ... light-tight cabinet provides optimum conditions for ...
Goat polyclonal to Sarcosine Oxidase ( Abpromise for all tested applications). Antigen: Microbial Sarcosine Oxidase. Entrez Gene ID: 51268 Swiss Protein ID: Q6IAJ9...
odz, odd Oz/ten-m homolog 1 [Source:RefSeq_peptide;Acc:NP_055068] Antigen: Recombinant Protein Epitope Signature Tag (PrEST)....
Biology Products: