Navigation Links
Systems biology approach identifies nutrient regulation of biological clock in plants
Date:3/14/2008

/p>

To identify genome-wide responses to such organic nitrogen signals, the researchers treated Arabidopsis seedlings with inorganic nitrogen (N) in both the presence and the absence of chemicals that inhibit the assimilation into organic N and conducted a genome-wide analysis of all genes whose expression responds to inorganic or organic forms of nitrogen. Using an integrated network model of molecular interactions for Arabidopsis--constructed by the researchers--in which approximately 7,000 genes are connected by 230,000 molecular interactions, they uncovered a sub-network of genes regulated by organic nitrogen that includes a highly connected network hub CCA1, which controls a plants biological clock, and target genes involved in nitrogen assimilation.

The findings thus provide evidence that plant nutrition, like animal nutrition, is tightly linked to circadian, or biological clock, functions as scientists have previously hypothesized. Other researchers have recently found that the central clock gene Per2 is necessary for food anticipation in mice. This study indicates that nitrogen nutrition affects CCA1, the central clock gene of plants, suggesting nutritional regulation of the biological clock occurs in plants.


'/>"/>

Contact: James Devitt
james.devitt@nyu.edu
212-998-6808
New York University
Source:Eurekalert

0

GOOD

Page: 1 2

Related biology news :

1. Small streams mitigate human influence on coastal ecosystems
2. Rats on islands disrupt ecosystems from land to sea, researchers find
3. Adapting local ecosystems can soften impact of global climate change
4. Map is first to track global human influences on ocean ecosystems
5. First map of threats to marine ecosystems shows all the worlds oceans are affected
6. Washington University increases fleet of Roche Genome Sequencer FLX Systems
7. Systems biologist finds novel solutions to fundamental biological problems
8. Accu-Time Systems, Inc. Announces Launch of Next Generation Human Capital Management (HCM) solutions: Global Series(TM)
9. Resilience concepts poised to aid management of coastal marine ecosystems
10. Brain-computer link systems on the brink of breakthrough, study finds
11. Fidelica Microsystems Announces Biometrically-Authenticated Smart Card
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/14/2009)... Nations Framework Convention on Climate Change taking place ... ,Bend the Trend, event on Sunday evening to ... the screening of the new ,Environmental Atlas of ... joint project of the European Environment Agency (EEA), ... a series of short films showing the significance ...
(Date:12/13/2009)... enzymes that may help to engineer plants that take ... efficiently. The finding could help to engineer crops that ... in the carbon dioxide they need for photosynthesis through ... for each molecule of the gas gained, they lose ... pores can tighten to save water when CO 2 ...
(Date:12/13/2009)... five genetic variants that are associated with the health ... consortium of 96 scientists from 63 centres in Europe ... of lung diseases. , The new findings provide hope ... Pulmonary Disease (COPD) and asthma. In the past it ... molecular pathways that affect the health of the lung ...
Breaking Biology News(10 mins):'Environmental Atlas of Europe' unveiled at COP15 2Newly identified enzymes help plants sense elevated CO2 and could lead to water-wise crops 2Newly identified enzymes help plants sense elevated CO2 and could lead to water-wise crops 3New genes for lung disease discovered 2New information about how fat increases blood pressure could help identify those at risk 9752 1New information about how fat increases blood pressure could help identify those at risk 9752 2New information about how fat increases blood pressure could help identify those at risk 9752 3International event brings worlds top cancer doctors to Queens 9750 1International event brings worlds top cancer doctors to Queens 9750 2International event brings worlds top cancer doctors to Queens 9750 3Hard To Treat Diseases 28HTDS PK 29 Stem Cells and Regenerative Medicine 4931 1Hard To Treat Diseases 28HTDS PK 29 Stem Cells and Regenerative Medicine 4931 2Hard To Treat Diseases 28HTDS PK 29 Stem Cells and Regenerative Medicine 4931 3
... Dr Karen Beemon has been awarded the third annual Retrovirology ... crystal trophy and is interviewed in an article published today ... Chair of the Biology Department, Johns Hopkins University. , ... It is wonderful to be recognized by the ...
... energy source and use up carbon dioxide in the process, ... briefing today. , Methanogens are microbes called archaea that are ... of methane produced on earth by living things says Dr ... methane, the major flammable component of natural gas. So methanogens ...
... Raton, FL, December 8, 2007 Brain overgrowth in ... contribute to the onset of autistic characteristics, according to ... (ACNP) annual meeting. These findings support concurrent research which ... as two years old. , Lead researcher Joseph Piven, ...
Other Biology News:Karen Beemon wins the 2007 Retrovirology Prize 2New studies suggest brain overgrowth in 1-year-olds linked to development of autism 2
(Date:12/14/2009)... 14 Decision Resources, one of the ... and healthcare issues, finds that, owing to the ... drug market will increase more than sevenfold from ... 2018 in the United States, France, Germany, Italy, ... new Pharmacor report entitled Atrial Fibrillation ...
(Date:12/11/2009)... ROCKVILLE, Md., Dec. 11 EntreMed, Inc. ... of $1.7 million in royalty revenue from sales ... estimated royalty revenue of $3.3 million. In ... quarter and projected revenue for fiscal 2009. ... the third quarter will be reflected in the ...
(Date:12/11/2009)... have discovered a new explanation for differences in the severity ... a certain gene, the more serious the handicap. The genetic ... that it is the amount of copies of the GDI1 ... the American Journal of Human Genetics , and are ... connected to VIB, a life sciences research institute in Flanders, ...
(Date:12/11/2009)... OSLO, December 11 Algeta ASA ... the first clinical center in the,US, the ... randomizing patients,in the phase III clinical study ... as hormone-refractory) prostate cancer,(CRPC) that has metastasized ... The ALSYMPCA (ALpharadin in SYMptomatic Prostate ...
Breaking Biology Technology:The Atrial Fibrillation Drug Market Will Increase More Than Sevenfold, from $790 Million in 2008 to $6.1 Billion in 2018 2EntreMed Reports Receipt of Third Quarter Royalty Payment 2Amount of gene surplus determines severity of mental retardation in males 2Algeta Announces First US Patient Randomized in ALSYMPCA Phase III Study at Tulane Cancer Center, New Orleans 2Algeta Announces First US Patient Randomized in ALSYMPCA Phase III Study at Tulane Cancer Center, New Orleans 3Algeta Announces First US Patient Randomized in ALSYMPCA Phase III Study at Tulane Cancer Center, New Orleans 4
... at the 2008 Genitourinary Cancers Symposium, ... Inc. announced,today that the Company,s lead cancer ... was well-tolerated in combination with either docetaxel ... with,hormone refractory prostate cancer. Additionally, patients treated ...
... Testing the safety of chemicals ranging from pesticides to ... plan for collaboration, according to federal scientists from the ... Protection Agency (EPA), who today announced a new toxicity ... in the Feb. 15, 2008 issue of the journal ...
... summary of the National Nanotechnology Initiative (NNI) Fiscal Year ... Engineering, and Technology (NSET) Subcommittee of the National Science ... a supplement to the Presidents Budget for Fiscal Year ... as well as highlights of planned activities to be ...
Other Biology Technology:OncoGenex reports lead drug candidate OGX-011 achieved primary endpoint in Phase 2 Trial with second-line chemotherapy for prostate cancer 2OncoGenex reports lead drug candidate OGX-011 achieved primary endpoint in Phase 2 Trial with second-line chemotherapy for prostate cancer 3OncoGenex reports lead drug candidate OGX-011 achieved primary endpoint in Phase 2 Trial with second-line chemotherapy for prostate cancer 4NIH collaborates with EPA to improve the safety testing of chemicals 2NIH collaborates with EPA to improve the safety testing of chemicals 3National Nanotechnology Initiative releases its fiscal year 2009 budget and highlights 2
... Dithiothreitol DTT White ... reduces disulfides to thiols, so reaction is "driven" ... Does not contain waxy surfactant found in many ... of pentobarbitol. Purity: ≥97% by titration. ...
... ChIP-on-chip Microarray is specifically designed for ... DNA binding proteins by pairing chromatin ... This set delivers robust hybridization and ... binding events and fewer false positives. ...
... Basically, most ``special`` dye stains are ... few other non-routine) stains are $9.00. ... a paraffin block, staining, coverslipping and ... (for senile plaques) ,Bodian`s Stain ,Copper ...
... The Yeast Whole Genome ChIP-on-chip Microarray ... of yeast (S. cerevisiae) DNA binding ... with Agilent DNA microarrays. This set ... data with greater true binding events ...
Biology Products: