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 The birth of a new protein
20.10.2017 | University of Arizona

nachricht Building New Moss Factories
20.10.2017 | Albert-Ludwigs-Universität Freiburg im Breisgau

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Terahertz spectroscopy goes nano

20.10.2017 | Information Technology

Strange but true: Turning a material upside down can sometimes make it softer

20.10.2017 | Materials Sciences

NRL clarifies valley polarization for electronic and optoelectronic technologies

20.10.2017 | Interdisciplinary Research

VideoLinks
B2B-VideoLinks
More VideoLinks >>>