Navigation Links
Feeling stressed? So is the poplar
Date:5/6/2010

om the primary root of a plant. "They are the sponges," Busov explained, "the ones that go looking for nutrients, for waterthe ones that do most of the work."

The researchers found that GAs interact with other plant hormones such as auxin to tell the plant whether to concentrate on reaching for the sky or on building a bigger, better network of roots under ground. "The GAs and auxin are definitely talking, molecularly," said Busov.

Growing poplar seedlings mutated to make them GA-deficient, the scientists compared their root and stem growth to others that contained moderate amounts of GAs and a control group of wild-type plants with normal GAs. They found that more GAs, the more a plant's stem flourished, but its roots remained spindly. When GA production was shut down, either by using mutants that lacked the necessary genes or by silencing the genes that form the molecular on-off switch, the resulting plants looked dwarfed, but their lateral roots grew luxuriant and full.

Application of GA to the GA-deficient dwarf plants rapidly reversed the process. The plants grew tall, but their lateral root systems shriveled.

"Clearly, lack of the hormone promotes growth below ground, while the hormone itself promotes growth above ground," said Busov. "This is a natural mechanism that we don't know much about. It's always a tradeoff between growth above ground and growth below ground. Normally there is a fine balance, and this balance is a little disturbed under stress."

In a commentary on the research published in the same issue of the journal, Kathleen Farquharson, science editor of The Plant Cell, wrote: "This study provides important insights into how plant hormones regulate lateral root development."


'/>"/>

Contact: Jennifer Donovan
jdonovan@mtu.edu
906-487-4521
Michigan Technological University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Feeling hot, hot, hot: New study suggests ways to control fever-induced seizures
2. Feeling your words: Hearing with your face
3. Scientists ramp up ability of poplar plants to disarm toxic pollutants
4. Fighting pollution the poplar way: Trees to clean up Indiana site
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/11/2015)... 11, 2015 According ... Control Market by Product (Cards and Readers, Biometrics, Controllers, ... Government, Industrial, Healthcare, Education) and By Geography - Global Forecast and ... the Access Control Market is expected to ... a CAGR of 10.6% between 2014 and ...
(Date:2/5/2015)... 2015   Epic Sciences , a precision diagnostics company ... Murali Prahalad , Ph.D., president and CEO, is scheduled ... (PMWC) 2015: Silicon Valley, which is taking place at the ... on January 26-28, 2015. Dr. Prahalad ... Biomarkers." Last year, Epic Sciences was a finalist in the ...
(Date:2/5/2015)... 2015 Research and Markets ( ... "Global Biometrics Market (2014-2020): Market Forecast By ... report to their offering. , ... is anticipated to overtake North ... government spending towards IT security, government biometric based ...
Breaking Biology News(10 mins):Access Control Market Worth $10.4 Billion by 2020 2Access Control Market Worth $10.4 Billion by 2020 3Access Control Market Worth $10.4 Billion by 2020 4Epic Sciences to Present at Personalized Medicine World Conference 2015 on the Use of Circulating Tumor Cells as Cancer Biomarkers 2Global Biometrics Market (2014-2020): Market Forecast By Technologies, Applications, End Use, Regions and Countries 2Global Biometrics Market (2014-2020): Market Forecast By Technologies, Applications, End Use, Regions and Countries 3
... -- A new study by Georgetown University Medical Center researchers ... to stop cancer cell growth. The findings, published online ... which is mutated in a majority of families who have ... I. Yarden, PhD, assistant professor in the Department of Human ...
... A new model of the how the protein coat ... access journal BMC Biophysics , shows that ... capsid production (hierarchical assembly) can be more efficient than ... capsid enveloping a virus is essential for protection and ...
... genomic data into meaningful information about the cell is ... human biology and medicine. Researchers at the University of ... proposed a new method that creates a computational model ... protein interactions, discovering how genes and proteins connect to ...
Cached Biology News:Study uncovers mechanism used by BRCA1 to suppress tumors 2Do-it-yourself viruses: How viruses self assemble 2Toward a new model of the cell 2Toward a new model of the cell 3
(Date:3/6/2015)... Global Specimen Solutions, Inc. ( ... specimen management and informatics, announced today that Series ... Inc. is excited to catapult our growing momentum ... further enhance our proprietary informatics tools and infrastructure ... GSS has proved rapid market uptake of our ...
(Date:3/6/2015)... 06, 2015 Transparency Market Research has published ... Crops - Global Industry Analysis, Size, Share, Growth, Trends and ... isoxaflutole market was valued at US$ 116.3 Mn in 2013 ... expanding at a CAGR of 5.1% from 2014 to 2020. ... at 2,569.5 kilo tons in 2013. , Isoxaflutole is widely ...
(Date:3/6/2015)... March 6, 2015 ... 2011 von der Assistance Publique - Hôpitaux ... Sie ist eine französische, gemeinschaftliche, randomisierte Kontrollstudie ... rekrutiert wurden. Verglichen werden Patienten mit fortgeschrittenem ... Harz-Mikrosphären oder Sorafenib behandelt wurden. Die Ergebnisse ...
(Date:3/5/2015)... 2015   HX360 today announced that sixteen ... HX360 Innovation Challenge competition. These companies, selected from ... chosen as one of four finalists to present their ... executives and venture capitalists during the Innovation Challenge event. ... at the 2015 HIMSS Annual Conference & Exhibition, McCormick ...
Breaking Biology Technology:Global Specimen Solutions, Inc. Closes Series A Funding 2Global Specimen Solutions, Inc. Closes Series A Funding 3Isoxaflutole Market is Expected to Reach US$ 163.0 Mn by 2020 : Transparency Market Research 2Isoxaflutole Market is Expected to Reach US$ 163.0 Mn by 2020 : Transparency Market Research 3Behandlung von primärem Leberkrebs: SARAH-Studie schließt Rekrutierung ab, Ergebnisse werden für Ende 2016 erwartet 2Behandlung von primärem Leberkrebs: SARAH-Studie schließt Rekrutierung ab, Ergebnisse werden für Ende 2016 erwartet 3Behandlung von primärem Leberkrebs: SARAH-Studie schließt Rekrutierung ab, Ergebnisse werden für Ende 2016 erwartet 4Behandlung von primärem Leberkrebs: SARAH-Studie schließt Rekrutierung ab, Ergebnisse werden für Ende 2016 erwartet 5Behandlung von primärem Leberkrebs: SARAH-Studie schließt Rekrutierung ab, Ergebnisse werden für Ende 2016 erwartet 6HX360 Announces Sixteen Innovation Challenge Semi-finalists Competing To Deliver Solutions That Improve The Patient Experience 2HX360 Announces Sixteen Innovation Challenge Semi-finalists Competing To Deliver Solutions That Improve The Patient Experience 3HX360 Announces Sixteen Innovation Challenge Semi-finalists Competing To Deliver Solutions That Improve The Patient Experience 4
... NEW YORK, June 18 In designing and conducting ... while preventing program "drift," according to Matthew Lehman, chief ... remarks at a recent seminar for biotechnology companies. ... for Success: Balancing FDA Expectations and Operational Reality," at ...
... Germany, June 18 2009 is the year of the ... cytometer - the ICP 11. , ... State Vineyard Castle Wackerbarth near Dresden. For the festive,ceremony, CEO ... society. , In 1968, the fluorescence ...
... event and prepare for it, according to new research ... that appeared today in Nature , Prof. Yitzhak ... Orna Dahan of the Institute,s Molecular Genetics Department, together ... Aviv University, examined microorganisms living in environments that change ...
Cached Biology Technology:Matthew Lehman of SPRI Clinical Trials Speaks On Designing Trials For Success At The Trout Group Investor Relations Seminar 2A Worldwide Milestone in Cell Analysis - 40 Years of Flow Cytometry 2Israeli scientists show bacteria can plan ahead 2Israeli scientists show bacteria can plan ahead 3
... by a modification of the procedure ... Bioeng., 11 , 1055 ... yield an A 260 of ... (1 cm light path). Physical Form: ...
... White solid.. PACKAGED UNDER INERT GAS. ... reaction is "driven" to completion. A protective agent ... found in many other preparations. Blocks the lethal ... by titration. Contaminants: Heavy metals: ≤1 ...
... Basically, most ``special`` dye stains ... a few other non-routine) stains are ... of a paraffin block, staining, coverslipping ... Stain (for senile plaques) ,Bodian`s Stain ...
... pombe Whole Genome ChIP-on-chip Microarray is ... yeast (S. pombe) DNA binding proteins ... Agilent DNA microarrays. This set delivers ... with greater true binding events and ...
Biology Products: