New research into one of the worlds most social bacteria - Myxococcus xanthus, has discovered that it has a gourmet style approach to its consumption of phosphates, which provides a key clue to what makes it the most "social" of bacteria.
Myxococcus xanthus is amazingly social and co-operative for a bacterium. It "hunts" as a pack, it makes a collective decision with other M. xanthus whether to go dormant or not, and it even has methods of policing the behaviour of individual bacteria that try to "cheat" in the collective activity of the group. Now Dr David Whitworth from the Biological Sciences Department of the University of Warwick has also discovered that it appears to seek out and consume phosphate in a "gourmet" manner, providing important evidence as to how such a relatively simple organism is able to act in such a social manner.
Dr Whitworth looked at the signalling pathways used by the bacterium to process information to switch actions on or off. Myxococcus xanthus has an unprecedented number (around 150) of the signalling pathways known as "two component switches" which dramatically increases the level of complexity of information that can be processed by the bacterium. Dr Whitworth focussed on three previously described signalling pathways that were known to be similar to phosphate utilisation pathways (all organisms need to consume phosphate to thrive). Until now most researchers believed that all bacteria only required one phosphate dependent signalling pathway to find the phosphate needed for consumption, and so the other two pathways found in M. xanthus simply did something else. In collaboration with Prof Mitchell Singer of the University of California at Davis, Dr Whitworth found that in fact the bacterium was using all three pathways and part of a further fourth pathway in combination, to detect and utilise phosphates, making it a very sophisticated consumer of phosphates - the bacterial equivalent of a gourmet diner.
Dr David Whitworth | EurekAlert!
Complete skin regeneration system of fish unraveled
24.04.2018 | Tokyo Institute of Technology
Scientists generate an atlas of the human genome using stem cells
24.04.2018 | The Hebrew University of Jerusalem
At the Hannover Messe 2018, the Bundesanstalt für Materialforschung und-prüfung (BAM) will show how, in the future, astronauts could produce their own tools or spare parts in zero gravity using 3D printing. This will reduce, weight and transport costs for space missions. Visitors can experience the innovative additive manufacturing process live at the fair.
Powder-based additive manufacturing in zero gravity is the name of the project in which a component is produced by applying metallic powder layers and then...
Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.
Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...
University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.
Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...
13.04.2018 | Event News
12.04.2018 | Event News
09.04.2018 | Event News
24.04.2018 | Information Technology
24.04.2018 | Earth Sciences
24.04.2018 | Life Sciences