The project, funded by the Natural Environment Research Council, will involve growing two different species of cyanobacteria – photosynthetic algae that are able to fix nitrogen from the atmosphere – under different conditions. Dr Tracy Lawson and Professors Richard Geider and David Nedwell will study how reductions in phosphorous and iron affect the ability of the cyanobacteria to fix nitrogen and carry out photosynthesis.
Dr Lawson, who is leading the project, explained: ‘Photosynthesis by marine algae is important as the ocean can act as a sink for carbon dioxide from the atmosphere. So, by increasing photosynthesis in the ocean, we may be able to reduce carbon dioxide in the atmosphere that is produced by man and counteract global warming.’
The reduction of phosphorus and iron is expected to affect the photosynthetic structure and function in different ways: iron is required for certain parts of the photosynthetic electron transport chain while phosphorous is required for the production of energy and as the building blocks of nucleic acids and protein.
Because photosynthesis also requires light and carbon dioxide, the researchers will also alter the light environment and carbon dioxide concentration that the algae will be grown under. By growing the cultures in such controlled conditions the researchers will be able to closely mimic the natural environment. This will be the first time some of these cultures have been grown in this way.
Dr Lawson added: ‘This work will give us information that is vital for use in mechanistic models that will predict marine responses to climatic change under different nutrient, light and carbon dioxide regimes.’
Kate Clayton | alfa
How Humans and Machines Navigate Complex Situations
19.11.2018 | Max-Planck-Institut für Bildungsforschung
A gene activated in infant and young brains determines learning capacity in adulthood
13.11.2018 | Universitätsklinikum Hamburg-Eppendorf
DESY and MPSD scientists create high-order harmonics from solids with controlled polarization states, taking advantage of both crystal symmetry and attosecond electronic dynamics. The newly demonstrated technique might find intriguing applications in petahertz electronics and for spectroscopic studies of novel quantum materials.
The nonlinear process of high-order harmonic generation (HHG) in gases is one of the cornerstones of attosecond science (an attosecond is a billionth of a...
Nano- and microtechnology are promising candidates not only for medical applications such as drug delivery but also for the creation of little robots or flexible integrated sensors. Scientists from the Max Planck Institute for Polymer Research (MPI-P) have created magnetic microparticles, with a newly developed method, that could pave the way for building micro-motors or guiding drugs in the human body to a target, like a tumor. The preparation of such structures as well as their remote-control can be regulated using magnetic fields and therefore can find application in an array of domains.
The magnetic properties of a material control how this material responds to the presence of a magnetic field. Iron oxide is the main component of rust but also...
Due to the special arrangement of its molecules, a new coating made of corn starch is able to repair small scratches by itself through heat: The cross-linking via ring-shaped molecules makes the material mobile, so that it compensates for the scratches and these disappear again.
Superficial micro-scratches on the car body or on other high-gloss surfaces are harmless, but annoying. Especially in the luxury segment such surfaces are...
The Potsdam Echelle Polarimetric and Spectroscopic Instrument (PEPSI) at the Large Binocular Telescope (LBT) in Arizona released its first image of the surface magnetic field of another star. In a paper in the European journal Astronomy & Astrophysics, the PEPSI team presents a Zeeman- Doppler-Image of the surface of the magnetically active star II Pegasi.
A special technique allows astronomers to resolve the surfaces of faraway stars. Those are otherwise only seen as point sources, even in the largest telescopes...
Researchers at Chalmers University of Technology and the University of Gothenburg, Sweden, have proposed a way to create a completely new source of radiation. Ultra-intense light pulses consist of the motion of a single wave and can be described as a tsunami of light. The strong wave can be used to study interactions between matter and light in a unique way. Their research is now published in the scientific journal Physical Review Letters.
"This source of radiation lets us look at reality through a new angle - it is like twisting a mirror and discovering something completely different," says...
11.03.2019 | Event News
01.03.2019 | Event News
28.02.2019 | Event News
25.03.2019 | Trade Fair News
25.03.2019 | Life Sciences
25.03.2019 | Information Technology