Navigation Links
Computational analysis shows that plant hormones often go it alone

Unlike the Three Musketeers who lived by the motto "All for one, one for all," plant hormones prefer to do their own thing. For years, debate swirled around whether pathways activated by growth-regulating plant hormones converge on a central growth regulatory module. Now, the cooperation model is challenged by researchers at the Salk Institute for Biological Studies. They show that each hormone acts largely independently in the Aug. 11 issue of Cell.

The Salk team found that specific plant hormones often activate different factors rather than a common target. "This result was completely unexpected because hormones with similar effects on plant growth seem to act on different gene sets," says the study's lead author Joanne Chory, Ph.D., a professor in the Plant Biology Laboratory and investigator with the Howard Hughes Medical Institute.

Plants rely on hormones, which act as chemical messengers to regulate every aspect of their biology. Growth, for example, is stimulated by multiple hormones -- brassinosteroids, auxins and gibberellins among them. The fact that these and several other hormones stimulate plant growth suggested to some investigators that eventually they all switch on the same growth-promoting genes.

To test that idea, the Chory team poured over data derived from the new gene-chip technology, in which samples of almost every gene expressed in a cell are spotted onto a tiny glass slide known as a microarray and analyzed under different physiological conditions. Although the analysis sounds complex, it answers a simple question: After stimulation with seven different growth hormones, are the same or different genes activated?

The teamwork model would predict yes, but Chory's team found otherwise. Co-lead authors Jennifer L. Nemhauser, Ph.D., a former postdoctoral fellow in Chory's lab and now assistant professor at the University of Washington in Seattle, and Fangxin Hong, Ph.D., a biostatistician in Chory's lab, found
'"/>

Source:Salk Institute


Page: 1 2 3

Related biology news :

1. Supercomputer Dedicated To Bioengineering, Computational Biology Installed
2. Institute for Systems Biology Symposium Addresses Need for Better Computational Tools
3. Computational Method Speeds Mapping of Cell Signaling Networks
4. Computational verification of protein-protein interactions by orthologous co-expression
5. Computational Tool Predicts How Drugs Work In Cells, Advancing Efforts To Design Better Medicines
6. Computational model simulates AZT metabolism in mitochondria
7. GATA: a graphic alignment tool for comparative sequence analysis
8. Global analysis of membrane proteins
9. Doctors closer to using gene analysis to help trauma patients
10. Agilent Technologies new genome analysis technology set to accelerate Australia fight against mesothelioma
11. New miniaturised chip dramatically reduces time taken for DNA analysis
Post Your Comments:
(Date:12/3/2009)... Our ability to learn new information and adapt to changes ... memories, appears to lie in the minute junctions where nerve ... Medicine Center researchers. The study is published online this week ... led by Wen-Biao Gan, PhD, associate professor of physiology and ...
(Date:12/3/2009)... that staph infections are caused by many bacterial cells that ... called quorum sensing because many bacteria must be present to ... has determined that the very first stage of staph infection, ... occurs in a single cell and that this individual process ...
(Date:12/3/2009)... levels for the past three years in the troposphere ... Valladolid. The results, which are the first of their ... rose "significantly" between 2002 and 2005. , Over recent ... out about carbon dioxide (CO2) levels, and how these ...
Breaking Biology News(10 mins):Lifelong memories linked to stable nerve connections 2Stopping MRSA before it becomes dangerous is possible, Sandia/UNM researchers find 2Stopping MRSA before it becomes dangerous is possible, Sandia/UNM researchers find 3CO2 levels rising in troposphere over rural areas 2OmniComm Systems Inc Retains Emerging Growth Equities Ltd as its Strategic Financial Advisor 51013 1OmniComm Systems Inc Retains Emerging Growth Equities Ltd as its Strategic Financial Advisor 51013 2OmniComm Systems Inc Retains Emerging Growth Equities Ltd as its Strategic Financial Advisor 51013 3A comprehensive review of addiction to prescription painkillers among patients and physicians 51008 1A comprehensive review of addiction to prescription painkillers among patients and physicians 51008 2A comprehensive review of addiction to prescription painkillers among patients and physicians 51008 3Denosumab Demonstrates Superiority Over Zometa 28R 29 in Pivotal Phase 3 Head to Head Trial in Breast Cancer Patients With Bone Metastases 4698 1Denosumab Demonstrates Superiority Over Zometa 28R 29 in Pivotal Phase 3 Head to Head Trial in Breast Cancer Patients With Bone Metastases 4698 2Denosumab Demonstrates Superiority Over Zometa 28R 29 in Pivotal Phase 3 Head to Head Trial in Breast Cancer Patients With Bone Metastases 4698 3Denosumab Demonstrates Superiority Over Zometa 28R 29 in Pivotal Phase 3 Head to Head Trial in Breast Cancer Patients With Bone Metastases 4698 4Denosumab Demonstrates Superiority Over Zometa 28R 29 in Pivotal Phase 3 Head to Head Trial in Breast Cancer Patients With Bone Metastases 4698 5Denosumab Demonstrates Superiority Over Zometa 28R 29 in Pivotal Phase 3 Head to Head Trial in Breast Cancer Patients With Bone Metastases 4698 6Denosumab Demonstrates Superiority Over Zometa 28R 29 in Pivotal Phase 3 Head to Head Trial in Breast Cancer Patients With Bone Metastases 4698 7Denosumab Demonstrates Superiority Over Zometa 28R 29 in Pivotal Phase 3 Head to Head Trial in Breast Cancer Patients With Bone Metastases 4698 8
... are some species of plants and animals favored by natural ... similarly? , According to a UC Riverside-led research team, the ... how fast a species consumes energy, per unit mass, ... largest number of species ever analyzed in a single study. ...
... Professor David Salt (Purdue University) and Tommy Sors ... been awarded First Place in the Interactive Media ... Science and Engineering Visualization Challenge. The winning ... the Genomics Digital Lab (GDL). , The ...
... simulation experts from Rhode Island Hospital discuss the ... appearing in the November 2008 issue of ... articles describe how simulation centers, along with new ... dynamic, complex and unanticipated medical situations in acute ...
Other Biology News:Ecologists say metabolism accounts for why natural selection favors only some species 2David Salt is 'worth his salt,' says Science magazine 2David Salt is 'worth his salt,' says Science magazine 3Rhode Island Hospital simulation center examines benefits and applications of medical simulation 2Rhode Island Hospital simulation center examines benefits and applications of medical simulation 3
(Date:12/3/2009)... TUSTIN, Calif., Dec. 3 Peregrine Pharmaceuticals, Inc. (Nasdaq: ... results for the second quarter of fiscal year 2010 on ... a conference call and webcast to discuss the results at ... management will discuss financial results for the second quarter ended ...
(Date:12/2/2009)... Martek Biosciences Corporation (Nasdaq: MATK ) announced today ... quarter and fiscal year 2009 on December 16, 2009, at ... at 4:45 p.m. ET Martek will conduct a conference call ... may listen to the call live via webcast by visiting ...
(Date:12/2/2009)... 2 Reportlinker.com announces that a new ... catalogue: ,, Drug Discovery Technologies - ... Opportunities ,, http://www.reportlinker.com/p0164246/Drug-Discovery-Technologies---A-Global-Update-of-Market-Trends--Opportunities.html ,, ... ongoing element of every pharmaceutical company,s business ...
(Date:12/2/2009)... ("Oncolytics" or the "Company") (TSX:ONC; NASDAQ: ONCY ) announced ... offering, the underwriters have exercised in full their over-allotment ... is comprised of one common share and 0.4 of ... a price of US$3.00 per unit. Each whole common ...
Breaking Biology Technology:Peregrine Pharmaceuticals to Report Second Quarter FY 2010 Financial Results 2Martek to Announce Fourth Quarter and Fiscal Year 2009 Results 2Reportlinker Adds Drug Discovery Technologies - A Global Update of Market Trends & Opportunities 2Reportlinker Adds Drug Discovery Technologies - A Global Update of Market Trends & Opportunities 3Reportlinker Adds Drug Discovery Technologies - A Global Update of Market Trends & Opportunities 4Reportlinker Adds Drug Discovery Technologies - A Global Update of Market Trends & Opportunities 5Reportlinker Adds Drug Discovery Technologies - A Global Update of Market Trends & Opportunities 6Reportlinker Adds Drug Discovery Technologies - A Global Update of Market Trends & Opportunities 7Reportlinker Adds Drug Discovery Technologies - A Global Update of Market Trends & Opportunities 8Reportlinker Adds Drug Discovery Technologies - A Global Update of Market Trends & Opportunities 9Oncolytics Biotech(R) Inc. Announces Exercise of Underwriters' Over-Allotment Option 2Oncolytics Biotech(R) Inc. Announces Exercise of Underwriters' Over-Allotment Option 3Oncolytics Biotech(R) Inc. Announces Exercise of Underwriters' Over-Allotment Option 4
... LAGUNA HILLS, Calif., Nov. 20 CalbaTech, Inc.,(OTC BB: ... concentrating on the collection and banking of adult stem ... platforms to,the biotech and pharmaceutical research markets and to ... U.S. Securities &,Exchange Commission that it anticipates to be ...
... GeneGo, Inc., the leading,provider of databases, software ... Utrecht University will be using MetaDrug in ... is designed for predicting,biological effects such as ... structures. Its content includes xenobiotics with known,activity, ...
... 20 /PRNewswire/ - Cytochroma Inc. announced today,that it ... trial of CTAP101,Capsules, the Company,s product candidate for ... disease (CKD). This Phase I/II clinical trial ... the pharmacokinetic profile and safety of CTAP101,Capsules in ...
Other Biology Technology:CalbaTech Files Nine Month Financial Results; Anticipates Profitability in 2007 2CalbaTech Files Nine Month Financial Results; Anticipates Profitability in 2007 3Utrecht University Licenses MetaDrug From GeneGo for Drug Innovation 2Cytochroma initiates Phase I/II clinical trial of CTAP101 Capsules for vitamin D insufficiency in chronic kidney disease 2
PlusOne EDTA, disodium salt, 100 g. Category: Electrophoresis Systems & Standards & Reagents, Electrophoresis Standards and Reagents, Buffers....
Human/Mouse/Rat p38 alpha Affinity Purified PAb...
XBP1 Antibody...
Recombinant Mouse LIGHT/TNFSF14...
Biology Products: