" "
Satellite Banner
Technology
Networks
Scientific Communities
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Anasys' EPFL Users Publish Their AFM-IR Application of Research into Photosynthesis

Published: Thursday, October 24, 2013
Last Updated: Wednesday, October 23, 2013
Bookmark and Share
Anasys reports on EPFL's publication in Plant Cell on the use of nanoIR to look into the process of photosynthesis to shed more light on how plants produce energy.

École Polytechnique Federale de Lausanne, better known as EPFL, has recently reported on how a group of its scientists have used powerful imaging techniques including nanoIR to support a study which sheds light on photosynthesis.

All plants use a form of photosynthesis to produce energy, though not all rely exclusively on it. In higher plants, capturing light takes place in specialized compartments called thylakoids. These are found in cell organelles called chloroplasts, which are the equivalent of a power station for the plant.

Despite being well-defined from a biochemical perspective, photosynthesis is still a mystery when we consider what happens at the level of the cell.

Collaborating in a study published in Plant Cell, EPFL scientists have used a range of microscopy and visualization techniques to understand how the largest photosynthetic pigment-protein antenna complex, known as light-harvesting complex II (LHCII) behave to capture light.

Andrzej Kulik from Giovanni Dietler's group at EPFL, collaborating with Wiesław Gruszecki at the Maria Curie-Sklodowska University and with researchers at the University of Warsaw compared LHCII-membrane complexes isolated from spinach leaves.

The difference lay in the amount of light the complexes had received: One group came from leaves adapted to the dark and the other from leaves previously exposed to high-intensity light.

Using X-ray diffraction, nanoscale infrared imaging microscopy, confocal laser scanning microscopy, and transmission electron microscopy, the researchers found that the dark-adapted LHCII-membranes complexes assembled into rivet-like stacks of bilayers (like a typical chloroplast membranes), while the pre-illuminated complexes formed 3-D forms that were considerably less structured.

The authors conclude that the formation of bilayer, rivet-like structures is crucial in determining how the thylakoid membrane structures itself in response to light exposure.

Depending on how much light they receive, the membranes can either stack up on each other or unstack in order to better utilize the energy captured.


Further Information

Join For Free

Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 2,900+ scientific posters on ePosters
  • More Than 4,200+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

Researchers Study Cultural Heritage Painting Cross-Sections
Study of cultural heritage painting cross-sections using AFM-based nanoscale mass spectrometry technique.
Friday, January 16, 2015
New NIST AFM-IR Publication has Catalysis Research Implications
Anasys Instruments reports on a new publication from their nanoIR users at NIST which assess the chemical composition of a metal-organic framework with nanoscale resolution.
Tuesday, March 25, 2014
Inventor of AFM-IR Technique to Receive Ernst Abbe Memorial Award
Professor Alexandre Dazzi to receive the award for pioneering field of nanoscale IR Spectroscopy.
Wednesday, March 19, 2014
French Researchers to Identify Best Microbes for Biofuel Production
Scientists used atomic force microscopy combined with infrared spectroscopy.
Wednesday, February 19, 2014
Anasys' NIST Users Report on New AFM-IR Nanoscale Chemical Imaging Method
New application for AFM-IR to study in NIST publication "Tech Beat."
Thursday, July 25, 2013
Purdue University Researchers Use Nanoscale IR Spectroscopy via AFM-IR
Utilizing this technique has provided key insights into drug-polymer blends.
Friday, May 11, 2012
Invited Award Symposium Presentation Nanoscale IR Spectroscopy at Pittcon 2012
Anasys Instruments announced that Dr. Bruce Chase is presenting an invited talk entitled "Structure and Orientation in Electrospun Nanofibers", as part of the Organized Contributed Session on Analytical Applications of Broadly Tunable Lasers.
Thursday, March 08, 2012
Anasys Instruments Receives Microscopy Today’s 2011 Innovation Award
AFM-IR system has been recognized by Microscopy Today in the receipt of the 2011 Innovation Award.
Thursday, August 18, 2011
Scientific News
Natural Protein Points to New Inflammation Treatment
Findings may offer insight to effective treatments for inflammatory diseases, such as rheumatoid arthritis, psoriasis, and multiple sclerosis.
Genetic Cause of Rare Allergy
Institute has identified a genetic mutation responsible for a rare form of inherited hives induced by vibratory urticaria.
Battery Component Found to Harm Key Soil Microorganism
The material at the heart of the lithium ion batteries that power electric vehicles, laptop computers and smartphones has been shown to impair a key soil bacterium, according to new research.
Keeping Tumor Growth at Bay
Engineers at Washington University in St. Louis found a way to keep a cancerous tumor from growing by using nanoparticles of the main ingredient in common antacid tablets.
Natural Protein Points to New Inflammation Treatment
Findings may offer insight to effective treatments for inflammatory diseases, such as rheumatoid arthritis, psoriasis, and multiple sclerosis.
Mitochondria Shown to Trigger Cell Ageing
An international team of scientists has for the first time shown that mitochondria, the batteries of the cells, are essential for ageing.
Cancer Cells Kill Off Healthy Neighbours
Cancer cells create space to grow by killing off surrounding healthy cells, according to UK researchers working with fruit flies.
Validating the Accuracy of CRISPR-Cas9
IBS Researchers create multiplex Digenome-seq to find errors in CRISPR-Cas9 processes.
Cancer Drug Target Visualized at Atomic Resolution
New study using cryo-electron microscopy shows how potential drugs could inhibit cancer.
Genetic Mechanism Behind Cancer-Causing Mutations
Researchers at Indiana University has identified a genetic mechanism that is likely to drive mutations that can lead to cancer.
Scroll Up
Scroll Down
Skyscraper Banner

Skyscraper Banner
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
2,900+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,200+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!