Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Viruses cause bacteria to produce pink pigments

05.04.2016

Study by the University of Kaiserslautern

Plants use certain colour pigments in order to convert light into energy by way of photosynthesis. They allow plants to gather light energy. This also works in a similar way for microbes, for instance cyanobacteria.


Viruses from the ocean carry the genetic information for the turnover of the green pigment biliverdin to the pink pigment phycoerythrobilin.

The fact that a very large number of viruses are able to contribute towards pigment production has now been demonstrated by biologists from the University of Kaiserslautern with a colleague from Israel. The viruses introduce genetic material into the bacteria which then allows them to produce the pink-coloured pigments. The study has now been published in the renowned scientific journal ‘Environmental Microbiology’.

Cyanobacteria (also known as blue-green algae) and other oceanic bacteria are able to convert carbon dioxide and water into carbohydrates and oxygen with the help of sunlight, just like plants. “They use light-harvesting complexes in order to capture the energy from the light,” says microbiology Professor Nicole Frankenberg-Dinkel from the University of Kaiserslautern.

“These consist of proteins and colour pigments.” The latter are also responsible for the characteristic colouration. In the case of plants, for example, this is the green pigment ‘chlorophyll’, in cyanobacteria this is the blue pigment ‘phycocyanobilin’ and the pink pigment ‘phycoerythrobilin’.

“The synthesis of these pigments is already well understood,” the microbiologist adds. “So far researchers have only been able to demonstrate their presence in organisms which release oxygen through the process of photosynthesis.” In addition to this form of conventional photosynthesis performed by plants and cyanobacteria, there are also other variants that do not release any oxygen.

The biologists at Kaiserslautern sought to investigate, together with their Israeli research colleague and bioinformatician Oded Béjà (from the Technion-Israel Institute of Technology), the extent to which pigment synthesis is prevalent in certain marine regions. The biosynthesis of pink pigment ‘phycoerythrobilin’ was the focus of their work.

“The genetic information for the synthesis of the pink pigment is widespread throughout all the world’s oceans,” says the professor. This is where the researchers made a notable discovery: this information is wide spread in viruses.

“The viruses carry genetic information which can be used to produce the pink-coloured pigments,” Frankenberg-Dinkel explains. The viruses introduce this genetic information into bacterial cells which enable them to synthesise the pink pigment. “What is new is that we are able to use bioinformatic analyses to determine the type of viruses which carry this genetic information”, Frankenberg-Dinkel continues. “We were able to show that the viruses most likely affect those microbes for which we do not yet know what purpose the pigment serves.”

For her study, Frankenberg-Dinkel and her team analysed datasets obtained from metagenome databases. “These contain all the genetic information of all the organisms we would usually extract during a field trip at sea, for example,” the researcher explains. “This technique allows us to gain a detailed insight into the ecosystem without having to investigate it on location.”

The biologists from the University of Kaiserslautern work closely with their colleague from the Technion-Israel Institute of Technology in Haifa. This cooperation is funded by the German-Israeli Foundation for Scientific Research and Development.

The study was published in the renowned scientific journal ‘Environmental Microbiology’: Ledermann, B., Beja, O. & Frankenberg-Dinkel, N. (2016) New biosynthetic pathway for pink pigments from uncultured oceanic viruses.
doi:10.1111/1462-2920.13290

For enquiries:
Prof Dr Nicole Frankenberg-Dinkel
Department of Biology
Email: nfranken@bio.uni-kl.de
Tel.: +49 631/205-2353

Katrin Müller | Technische Universität Kaiserslautern
Further information:
http://www.uni-kl.de

More articles from Life Sciences:

nachricht A new technique isolates neuronal activity during memory consolidation
22.06.2017 | Spanish National Research Council (CSIC)

nachricht CWRU researchers find a chemical solution to shrink digital data storage
22.06.2017 | Case Western Reserve University

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

Im Focus: Optoelectronic Inline Measurement – Accurate to the Nanometer

Germany counts high-precision manufacturing processes among its advantages as a location. It’s not just the aerospace and automotive industries that require almost waste-free, high-precision manufacturing to provide an efficient way of testing the shape and orientation tolerances of products. Since current inline measurement technology not yet provides the required accuracy, the Fraunhofer Institute for Laser Technology ILT is collaborating with four renowned industry partners in the INSPIRE project to develop inline sensors with a new accuracy class. Funded by the German Federal Ministry of Education and Research (BMBF), the project is scheduled to run until the end of 2019.

New Manufacturing Technologies for New Products

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

A new technique isolates neuronal activity during memory consolidation

22.06.2017 | Life Sciences

Plant inspiration could lead to flexible electronics

22.06.2017 | Materials Sciences

A rhodium-based catalyst for making organosilicon using less precious metal

22.06.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>