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:6/30/2017)... Va. , June 30, 2017 ... leading developer and supplier of face and eye ... ATA Featured Product provider program. ... an innovative way to monitor a driver,s attentiveness ... greatly from being able to detect fatigue and ...
(Date:5/16/2017)... , May 16, 2017  Veratad Technologies, LLC ... of online age and identity verification solutions, announced today ... Identity Conference 2017, May 15 thru May 17, 2017, ... Building and International Trade Center. Identity ... globe and in today,s quickly evolving digital world, defining ...
(Date:4/19/2017)... April 19, 2017 The global ... landscape is marked by the presence of several large ... held by five major players - 3M Cogent, NEC ... accounted for nearly 61% of the global military biometric ... in the global military biometrics market boast global presence, ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... (PRWEB) , ... October 10, 2017 , ... Dr. Bob ... at his local San Diego Rotary Club. The event entitled “Stem ... CA and had 300+ attendees. Dr. Harman, DVM, MPVM was joined by two ...
(Date:10/10/2017)... PA (PRWEB) , ... October 10, 2017 , ... ... year’s recipients of 13 prestigious awards honoring scientists who have ... presented in a scheduled symposium during Pittcon 2018, the world’s leading conference and ...
(Date:10/9/2017)... Phoenix, Arizona (PRWEB) , ... October 09, 2017 ... ... of Kindred, a four-tiered line of medical marijuana products targeting the needs of ... production and packaging of Kindred takes place in Phoenix, Arizona. , As operators ...
(Date:10/7/2017)... , Oct. 6, 2017  The 2017 ... of three scientists, Jacques Dubochet, Joachim Frank ... developments in cryo-electron microscopy (cryo-EM) have ... within the structural biology community. The winners worked ... can now routinely produce highly resolved, three-dimensional images ...
Breaking Biology Technology: