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 Modern genetic sequencing tools give clearer picture of how corals are related
17.08.2017 | University of Washington

nachricht The irresistible fragrance of dying vinegar flies
16.08.2017 | Max-Planck-Institut für chemische Ökologie

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

Gold shines through properties of nano biosensors

17.08.2017 | Physics and Astronomy

Greenland ice flow likely to speed up: New data assert glaciers move over sediment, which gets more slippery as it gets wetter

17.08.2017 | Earth Sciences

Mars 2020 mission to use smart methods to seek signs of past life

17.08.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>