Navigation Links
Study reveals important aspects of signaling across cell membranes in plants
Date:6/15/2011

Every living plant cell and animal cell is surrounded by a membrane that helps it communicate with other cells and the outside world. These cellular membranes contain receptor molecules that serve as the cell's eyes and ears.

The receptor molecules accomplish three basic things in the communication process: 1) recognize an outside signal, 2) transport that signal across the cell's membrane and 3) initiate the reading of the signal inside the cell and then initiate the cell's response to that signal. These steps are collectively known as transmembrane signaling.

Transmembrane signaling in animal cells has been significantly more studied and observed than that in plant cells. But now, with support from the National Science Foundation, researchers from Joanne Chory's laboratory at the Salk Institute have published new observations about transmembrane signaling in plants; their paper appears in the June 12, 2011, advanced online edition of Nature.

According to the study, transmembrane signaling mechanisms used by plants differ from those used by animals. Specifically, Michael Hothorn of the Salk Institute reports that a small steroid molecule on the outside of the plant cell assists in the transmembrane signaling process. By contrast, this sort of molecule and its receptor is generally located inside the nuclei of animal cells.

While studying transmembrane signaling in plants, Hothorn and colleagues observed the steroid, shown in yellow, attach to a membrane-bound receptor, shown in blue. This attachment enabled the steroid's counterpart--a co-receptor protein, shown in orange--to bind to the blue receptor. Once bound, the orange co-receptor and the blue receptor become glued together by the yellow steroid, allowing their intracellular domains to touch and initiate communication.

In the case observed by Hothorn, transmembrane signaling initiated plant growth.


'/>"/>

Contact: Lily Whiteman
lwhitema@nsf.gov
703-292-8310
National Science Foundation
Source:Eurekalert  

Page: 1

Related biology news :

1. Study hints at antibiotic overuse in home-care patients
2. E. coli bacteria more likely to develop resistance after exposure to low levels of antibiotics, reports a study in Microbial Drug Resistance
3. New study supports Darwins hypothesis on competition between species
4. Social scientists study impact of human adult stem cell research
5. Scripps Research scientist wins $1.9 million grant to study malaria
6. Mountain pine beetle activity may impact snow accumulation and melt, says CU-Boulder study
7. Study finds widespread stream biodiversity declines at low levels of urban development
8. Environmental engineering students and faculty study Passaic River pollution
9. Finnish twin study yields new information on how fat cells cope with obesity
10. Smithsonian study: Stranding records are faithful reflection of live whale and dolphin populations
11. Pregnant women can prevent excess weight gain with simple steps, study finds
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Study reveals important aspects of signaling across cell membranes in plants
(Date:11/28/2016)... , Nov. 28, 2016 ... a rate of 16.79%" The biometric system market ... grow further in the near future. The biometric system ... billion in 2022, at a CAGR of 16.79% between ... system, integration of biometric technology in smartphones, rising use ...
(Date:11/19/2016)... 2016 Securus Technologies, a leading provider of ... investigation, corrections and monitoring, announced today that it has ... have an independent technology judge determine who has the ... tech/sophisticated telephone calling platform, and the best customer service. ... most of what we do – which clearly is ...
(Date:11/15/2016)... -- Research and Markets has announced the addition of ... to their offering. ... The global bioinformatics ... USD 6.21 Billion in 2016, growing at a CAGR of 21.1% ... market is driven by the growing demand for nucleic acid and ...
Breaking Biology News(10 mins):
(Date:12/8/2016)... 2016  Soligenix, Inc. (OTCQB: SNGX) (Soligenix or ... developing and commercializing products to treat rare diseases ... today the long-term follow-up data from its Phase ... Innate Defense Regulator (IDR), in the treatment of ... patients undergoing chemoradiation therapy (CRT).  The additional 12-month ...
(Date:12/8/2016)... 8, 2016 Savannah River Remediation LLC ... selected NewTechBio,s NT-MAX Lake & Pond Sludge ... bacteria, in conjunction with Hexa Armor/ Rhombo cover ... National Pollutant Discharge Elimination System requirements. ... steady history of elevated pH levels, above 8.5, ...
(Date:12/8/2016)... Dec. 8, 2016   Biocept, Inc . ... provider of clinically actionable liquid biopsy tests to ... clinical data featuring its Target Selectorâ„¢ Circulating Tumor ... for the detection of actionable biomarkers in patients ... sponsored by Sara Cannon Research Institute (SCRI), the ...
(Date:12/7/2016)... ... 07, 2016 , ... Huffman Engineering, Inc. , a ... Certified System Integrator Partner. Huffman Engineering is the only Nebraska-based company recognized ... Integrator Partner certification gives customers confidence that our engineers are fully trained and ...
Breaking Biology Technology: