Navigation Links
Roots to shoots: Hormone transport in plants deciphered
Date:2/20/2014

AtABCG14 is highly expressed in the vascular tissues of roots.

To determine its function, they examined mutant plants harboring a disrupted AtABCG14 gene. They found that knocking out this transporter gene resulted in plants with weaker growth, slenderer stems, and shorter primary roots than their wild-type counterparts. These structural changes in the plants are symptoms of cytokinin deficiencies. Essentially, the long-distance transportation of the growth hormones is impaired, which causes alterations in the development of roots and shoots. The disrupted transport also resulted in losses of chlorophyll, the molecule that transforms absorbed sunlight into energy.

The team then used radiotracers to confirm the role of the AtABCG14 protein in transporting cytokinins through the plants. They fed Carbon-14-labeled cytokinins to the roots of both the wild-type and mutant seedlings. While the shoots of the wild-type plants were full of the hormones, there were only trace amounts in the shoots of the mutant plants, though their roots were enriched. This demonstrates a direct correlation between cytokinin transport and the action of AtABCG14 protein.

"Understanding the molecular basis for cytokinin transport enables us to more deeply appreciate how plants employ and distribute a set of signaling molecules to organize their life activity and for their entire body building," Liu said.

"From a biotechnology view, manipulating the activity of this identified transporter might afford us the flexibility to enhance the capacity and efficiency of plants in energy capture and transformation, and the storage of the reduced carbon, or the ability of plants to adapt to harsh environments, therefore promoting either the production of renewable feedstocks for fuels and bio-based materials, or grain yields to meet our world-wide food and energy demands."


'/>"/>
Contact: Chelsea Whyte
cwhyte@bnl.gov
DOE/Brookhaven National Laboratory
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Crime and punishment: The neurobiological roots of modern justice
2. UCSD researchers: Where international climate policy has failed, grassroots efforts can succeed
3. New avocado rootstocks are high-performing and disease-tolerant
4. Probing the roots of depression by tracking serotonin regulation at a new level
5. Grassroots approach to conservation developed
6. Researchers dig through the gene bank to uncover the roots of the evolutionary tree
7. Roots and microbes: Bringing a complex underground ecology into the lab
8. The modern view of nature has religious roots
9. Global genome effort seeks genetic roots of disease
10. New book connects the human community to its cosmic roots
11. A route for steeper, cheaper, and deeper roots
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Roots to shoots: Hormone transport in plants deciphered
(Date:7/10/2014)... Endomedix, a start-up company housed at NJIT,s business incubator, ... spray-on gel that surgeons will use to staunch bleeding ... onto a surgical site, and the natural bio-polymer solutions ... the patient within 30 seconds. , The gel ... It will translate into less time for the patient,s ...
(Date:7/10/2014)... centres around a family of enzymes known as heme ... in their active site. At the centre of the ... oxidised (ferryl) when a reacting heme is in an ... remained unanswered for decades is whether this oxidation involves ... (OH). Resolving this fundamental question has implications for understanding ...
(Date:7/10/2014)... announced today that Courtney Aldrich, Ph.D., will head ... as editor-in-chief. With the first issue slated ... will meet a growing demand for a place ... "Our vision is to develop a journal focused ... basic science that advances the field and lays ...
Breaking Biology News(10 mins):A start-up at NJIT develops bleeding-control gel for brain surgery 2Neutron crystallography solves long-standing biological mystery 2Neutron crystallography solves long-standing biological mystery 3ACS Infectious Diseases: Unique chemistry journal names editor 2
... in situ (DCIS), the most common non-invasive lesion of ... largely because the natural course of the untreated disease ... DCIS are treated, it is difficult to determine the ... meaning systematic followup. An independent panel convened by the ...
... University, who receives funding for basic research from the ... carbon nanostructures that may some day be used in ... Force. "Devices that are required in many of ... ones in the sense that they are often exposed ...
... Cold Spring Harbor, NY -- Two neuroscientists at ... group of only 42 researchers nationwide named by the ... receive special five-year grants for "transformative" research projects. ... Ph.D., were informed of their selection -- announced by ...
Cached Biology News:Research needed to learn which DCIS patients may be candidates for less invasive therapy 2Research needed to learn which DCIS patients may be candidates for less invasive therapy 3AFOSR's basic research may lead to revolutionary new devices 22 neuroscientists from Cold Spring Harbor Laboratory awarded 'transformative' NIH grants 22 neuroscientists from Cold Spring Harbor Laboratory awarded 'transformative' NIH grants 32 neuroscientists from Cold Spring Harbor Laboratory awarded 'transformative' NIH grants 4
(Date:7/10/2014)... can sit upside down forever. Nanophysics makes sure of that. ... article just published in Physical Review E . Knowledge ... spiders that seem to be able to sit still forever, ... many years. We will soon be able to buy smart ... foot. But the fact is, sooner or later the grip ...
(Date:7/10/2014)... the University of Illinois at Urbana-Champaign provides new ... of spin and heat at the nanoscale, and ... for data storage and information processing. , ... momentum. In a typical charge current, electrons, spin-angular-momentum ... explained David Cahill, a professor of materials science ...
(Date:1/15/2014)... an approach akin to assembling a club sandwich ... Technology (NIST) researchers have succeeded in crafting a ... flammability of foam commonly used in upholstered furniture ... the nanotube-coated polyurethane foam was reduced 35 percent ...
(Date:1/15/2014)... 15, 2014  Bill Jacobs Automotive, a group of car dealerships ... with the Heartland Blood Center and offering free oil change ... takes place Saturday, Jan. 18 at the Bill Jacobs Cadillac ... (Photo: http://photos.prnewswire.com/prnh/20140115/MN46637 )  The Bill ...
Breaking Biology Technology:Even geckos can lose their grip 2University of Illinois study advances limits for ultrafast nano-devices 2Layered security: Carbon nanotubes promise improved flame-resistant coating 2Join the Bill Jacobs Auto blood drive and receive a free oil change 2
... Date: May 10, 2011 ... technology, media, telecommunications, life sciences, and clean technology companies in North ... What:   Nominations are now being accepted. Companies ... 2006 to 2010.  To be eligible for Deloitte,s Technology Fast 500 ...
... Brainlab has received 510(k) clearance from the U.S. ... radiosurgery planning solution. This innovative software package will ... existing Linac (linear accelerator) radiosurgery hardware and offer ... the need for costly hardware upgrades. ...
... The Laboratory Department for Probiotics Research at the ... YAMASHIRO Yuichiro et al.) studied supplementation of probiotic ... in elderly individuals living at a nursing home ... gastroenteritis. Analysis of fecal flora ...
Cached Biology Technology:Deloitte Seeks Nominations for 2011 Technology Fast 500™ Ranking 2Brainlab Announces FDA 510(k) Clearance for New HybridArc™ Software for Radiosurgery 2Brainlab Announces FDA 510(k) Clearance for New HybridArc™ Software for Radiosurgery 3Lactobacillus Beverage Confirmed to Reduce Fever Brought on by Acute Gastroenteritis Caused by Norovirus Infection 2Lactobacillus Beverage Confirmed to Reduce Fever Brought on by Acute Gastroenteritis Caused by Norovirus Infection 3
Rad51, N-terminal...
DDO Immunogen: DDO (NP_003640, 270 a.a. ~ 370 a.a) partial recombinant protein with GST tag. Storage: -20 C, Avoid Freeze/Thaw Cycles *Available for distribution in the US only...
... Immobilized] Goat Immunogen: Goats ... (MASMTGGQQMG). Antibody was isolated by affinity ... support. Goat anti- human T7 affinity purified ... cyanogens bromide method. Specificity: ...
Recognizes the VZV nucleocapsid by indirect immunofluorescence and immunoprecipitation. Shows cross-reactivity to HSV....
Biology Products: