Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Viruses cause bacteria to produce pink pigments


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.

For enquiries:
Prof Dr Nicole Frankenberg-Dinkel
Department of Biology
Tel.: +49 631/205-2353

Katrin Müller | Technische Universität Kaiserslautern
Further information:

More articles from Life Sciences:

nachricht Biologists unravel another mystery of what makes DNA go 'loopy'
16.03.2018 | Emory Health Sciences

nachricht Scientists map the portal to the cell's nucleus
16.03.2018 | Rockefeller 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: Locomotion control with photopigments

Researchers from Göttingen University discover additional function of opsins

Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...

Im Focus: Surveying the Arctic: Tracking down carbon particles

Researchers embark on aerial campaign over Northeast Greenland

On 15 March, the AWI research aeroplane Polar 5 will depart for Greenland. Concentrating on the furthest northeast region of the island, an international team...

Im Focus: Unique Insights into the Antarctic Ice Shelf System

Data collected on ocean-ice interactions in the little-researched regions of the far south

The world’s second-largest ice shelf was the destination for a Polarstern expedition that ended in Punta Arenas, Chile on 14th March 2018. Oceanographers from...

Im Focus: ILA 2018: Laser alternative to hexavalent chromium coating

At the 2018 ILA Berlin Air Show from April 25–29, the Fraunhofer Institute for Laser Technology ILT is showcasing extreme high-speed Laser Material Deposition (EHLA): A video documents how for metal components that are highly loaded, EHLA has already proved itself as an alternative to hard chrome plating, which is now allowed only under special conditions.

When the EU restricted the use of hexavalent chromium compounds to special applications requiring authorization, the move prompted a rethink in the surface...

Im Focus: Radar for navigation support from autonomous flying drones

At the ILA Berlin, hall 4, booth 202, Fraunhofer FHR will present two radar sensors for navigation support of drones. The sensors are valuable components in the implementation of autonomous flying drones: they function as obstacle detectors to prevent collisions. Radar sensors also operate reliably in restricted visibility, e.g. in foggy or dusty conditions. Due to their ability to measure distances with high precision, the radar sensors can also be used as altimeters when other sources of information such as barometers or GPS are not available or cannot operate optimally.

Drones play an increasingly important role in the area of logistics and services. Well-known logistic companies place great hope in these compact, aerial...

All Focus news of the innovation-report >>>



Industry & Economy
Event News

Ultrafast Wireless and Chip Design at the DATE Conference in Dresden

16.03.2018 | Event News

International Tinnitus Conference of the Tinnitus Research Initiative in Regensburg

13.03.2018 | Event News

International Virtual Reality Conference “IEEE VR 2018” comes to Reutlingen, Germany

08.03.2018 | Event News

Latest News

Wandering greenhouse gas

16.03.2018 | Earth Sciences

'Frequency combs' ID chemicals within the mid-infrared spectral region

16.03.2018 | Physics and Astronomy

Biologists unravel another mystery of what makes DNA go 'loopy'

16.03.2018 | Life Sciences

Science & Research
Overview of more VideoLinks >>>