Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Plants recycle too

14.02.2014
A research team has identified a new protein complex which is crucial for endocytosis in plants

Cells communicate through proteins embedded in their cell membranes. These proteins have diverse functions and can be compared with antennas, switches and gates.


Only with the help of the TPLATE-complex of eight different proteins plants are able to take up material from the outside via endocytosis.

copyright: Clara Sanchez Rodriguez/MPI-MP

For the well-being of the cell, it has to adjust the composition of its membrane proteins and lipids constantly. New proteins are incorporated, while old proteins get recycled or eliminated. The process by which membrane material gets internalized is called endocytosis.

A research team headed by Daniël van Damme, Geert De Jaeger from VIB and Ghent University (Belgium) and Staffan Persson from the Max Planck Institute of Molecular Plant Physiology in Golm near Potsdam (Germany) has now identified a new protein complex which is crucial for endocytosis in plants. This finding has now been published in the scientific journal Cell.

Take up and recycle
Plants and animals are made up of billions of cells. For the optimal functioning of organisms, cells must receive information from their neighboring cells and from their surroundings. Cells communicate through proteins anchored in their membranes. These can be receptors, which function as antennas or switches to detect the presence of certain molecules, or transport proteins, which act as gates to control the uptake of nutrients. To optimize the communication, the cell needs to adjust the composition of its membrane at any time. The process by which new membrane proteins are sent to the membrane is called exocytosis. The opposite process, which is needed to take up membrane material, is called endocytosis. To initiate endocytosis, adaptor proteins need to recognize specific areas of the membrane to be internalized. Proteins that encage this membrane area are subsequently recruited. As a result, a small portion of the membrane will then invaginate and ultimately pinch off to produce a vesicle inside the cell. Membrane proteins incorporated in such vesicles can then be degraded, recycled or transported to other parts of the cell.
The TPLATE complex shows the way
For several decades, endocytosis has been heavily investigated in plants, animals and yeast. This has resulted in a wealth of information about the many proteins involved, but also about the complex interactions between them. Nevertheless, only a few adaptor-related components have been found in plants. Using state-of-the-art techniques, researchers of VIB, Ghent University and the Max-Planck-Institute in Potsdam-Golm have now identified an adaptor protein complex which is essential for endocytosis and which only exists in plants. The complex is built of the protein TPLATE and seven previously unknown proteins. The TPLATE complex turned out to be key for plant endocytosis as it arrives first at the position where endocytosis should get initiated. In terms of evolution, the plant specificity of the TPLATE complex was a surprising discovery. While proteins involved in endocytosis, such as clathrin, are conserved across the animal and plant kingdoms, the members of the TPLATE complex appears specially designed for plants. These research results are now published in the prestigious scientific journal Cell thanks to intense collaboration between VIB and the Max-Planck-Institute.
Astrid Gadeyne, Clara Sánchez-Rodríguez, et al.
The TPLATE adaptor complex drives clathrin-mediated endocytosis in plants
Cell, online publication
Contact
For VIB and Ghent University
Dr. Daniël Van Damme – daniel.vandamme@psb.ugent.be Tel. +32 (0)9 33 13 913
Prof. Geert De Jaeger – geert.dejaeger@psb.ugent.be Tel. + 32 (0)9 33 13 870
For the Max-Planck-Institute Potsdam-Golm
Dr. Staffan Persson – Persson@mpimp-golm.mpg.de Tel. +49 (0)331 567 8155
Dr. Clara Sanchez-Rodriguez – Rodriguez@mpimp-golm.mpg.de Tel. +49 (0)331 567 8151
VIB
VIB is a non-profit research institute in life sciences. About 1,300 scientists conduct strategic basic research on the molecular mechanisms that are responsible for the functioning of the human body, plants, and microorganisms. Through a close partnership with four Flemish universities − UGent, KU Leuven, University of Antwerp, and Vrije Universiteit Brussel − and a solid funding program, VIB unites the forces of 76 research groups in a single institute. The goal of the research is to extend the boundaries of our knowledge of life. Through its technology transfer activities, VIB translates research results into products for the benefit of consumers and patients and contributes to new economic activity. VIB develops and disseminates a wide range of scientifically substantiated information about all aspects of biotechnology. More information: http://www.vib.be.
Ghent University
After more than twenty years of uninterrupted growth, Ghent University is now one of the most important institutions of higher education and research in the Low Countries. Ghent University yearly attracts over 35,000 students, with a foreign student population of over 2,200 EU and non-EU citizens. Ghent University offers a broad range of study programs in all academic and scientific fields. With a view to cooperation in research and community service, numerous research groups, centers and institutes have been founded over the years. For more information http://www.UGent.be.
The Max-Planck-Institute
The Max Planck Institute of Molecular Plant Physiology belongs to the Max Planck Society, Germany's most successful research organization. The Institute conducts basic research and investigates metabolic and molecular processes in plant cells, tissues, organs and whole plants. The overall goal is to understand how metabolism and growth are regulated, to learn how they respond to environmental factors, and to unravel genetic factors that underlie these processes and responses. The institute is organised into three departments each led by a director. Within the departments, young scientists lead their own research groups. Currently 21 groups conduct cutting edge research. About 400 employees from all over the world work at the MPIMP.

Weitere Informationen:

http://www.vib.be
http://www.UGent.be
http://www.mpimp-golm.mpg.de/2168/en

Ursula Ross-Stitt | Max-Planck-Institut
Further information:
http://www.mpimp-golm.mpg.de/2168/en

More articles from Life Sciences:

nachricht How brains surrender to sleep
23.06.2017 | IMP - Forschungsinstitut für Molekulare Pathologie GmbH

nachricht A new technique isolates neuronal activity during memory consolidation
22.06.2017 | Spanish National Research Council (CSIC)

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Quantum thermometer or optical refrigerator?

23.06.2017 | Physics and Astronomy

A 100-year-old physics problem has been solved at EPFL

23.06.2017 | Physics and Astronomy

Equipping form with function

23.06.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>