Aphids salivate at the thought of beans! In fact, if it weren’t for their saliva they would starve to death. Professor Aart van Bel (Justus-Liebig-Universität, Germany) will be speaking at the Society for Experimental Biology Annual Main Meeting in Barcelona, on Thursday 14th July [session P2.1] about how special dynamic proteins are involved in ‘plant rescue systems’ and how aphid’s saliva can overcome their defence mechanism.
Bean plants contain contractile protein bodies (forisomes) which change their shape in response to calcium (released during stress). In reaction to wounding, forisomes block the sieve plates (structures in the stems which regulate fluid transport) by changing their shape and acting as a ‘plug’. The dispersion of the forisome protein prevents fluids from leaking out of the plant (otherwise your plants would ‘bleed’ to death when you mow your lawn!).
Aphids overcome this blockage by injecting their saliva into the plant. The forisomes shape sensitivity to concentrations of calcium is being investigated further as these proteins could potentially be applied in nanomotor systems and also in the provision of nutrients in microfluidity systems for medical research. Currently, attempts are being made to sequence the forisome proteins involved in this reversible dispersion/contraction by Dr. Michael Knoblauchs group.
Diana van Gent | alfa
Scientists uncover the role of a protein in production & survival of myelin-forming cells
19.07.2018 | Advanced Science Research Center, GC/CUNY
NYSCF researchers develop novel bioengineering technique for personalized bone grafts
18.07.2018 | New York Stem Cell Foundation
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.
Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
19.07.2018 | Social Sciences
18.07.2018 | Life Sciences
18.07.2018 | Materials Sciences