Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


60 years solitary confinement – green test tube biodiversity


Researchers at the Leibniz Institute DSMZ explore metabolic profiles of cyanobacteria

In their quest to find new model systems in cyanobacteria, Associate Professor Dr. Jörn Petersen and Junior Research Group leader Dr. Meina Neumann-Schaal of the Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures compared the genome and metabolic profiles of six non-marine cyanobacteria.

Light microscope images of the cyanobacteria Calothrix desertica DSM 106972 (top) und Anabaena variabilis DSM 107003 (bottom)

Jörn Petersen & Christian Boedeker, DSMZ

Associate Professor Dr. Jörn Petersen, Department of Microorganisms, Leibniz Institute DSMZ


Their research revealed striking differences in the metabolic repertoire of these organisms und corroborated an entirely unexpected inter-species transfer of primary metabolism genes. Now, the scientists from Brunswick in northern Germany had their findings published in the renowned journal ‘Genome Biology and Evolution’.

After conducting an extensive comparison of the genome and metabolism of five different cyanobacteria (with Synechocystis sp. PCC 6803 acting as reference strain), the researchers found not only substantial differences regarding the metabolic profiles of these different photosynthetic bacteria, but also demonstrated that the bacteria individually adapt to day-night-cycles.

There were large discrepancies between the investigated strains with respect to the assimilation of the greenhouse gas CO2 and its storage in form of carbohydrates. The decrypted genomes form the basis of the understanding of such metabolic variety.

For instance, one strain isolated in the Chilean Atacama Desert 60 years ago and ever since practically held in “solitary confinement”, the aptly named Calothrix desertica DSM 106972, contains three times as many genes as the reference organism. The results reveal the urgent necessity to utilise the biodiversity of cultivated cyanobacteria above and beyond the established model systems to allow the full exploitation of their hidden biotechnological potential.

Portrait cyanobacteria

Cyanobacteria are one of the oldest life forms on earth. For a long time, their appearance led scientists to mistakenly rank them among algae (“blue-green algae”). But four decades ago, evidence emerged that these organisms represent their own phylum within the world of bacteria. They are one of the most important primary producers of the planet’s oceans and practically invented plant photosynthesis more than three billion years ago.

These days they play an important role in biotechnology, including in the production of peptides, amino acids, vitamins and pigments. In the public eye, they mostly make an appearance when producing compounds toxic to humans and animals as a consequence of “algal bloom” in warm summers. Last year, the Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures expanded its collection by incorporating the organism-groups cyanobacteria and protists. Apart from their conservation and supply, the DSMZ in Brunswick also conducts extensive research on these microorganisms.

Original publication
Will, E.S. et al. (2018) Day and Night: Metabolic Profiles and Evolutionary Relationships of Six Axenic Non-Marine Cyanobacteria. Genome Biol. Evol. 11(1):270-294

DSMZ press contact:
Sven-David Müller, Head of Public Relations, Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures GmbH
Phone: ++49 (0)531 / 2616-300

About the Leibniz Institute DSMZ
The Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures is the world's most diverse collection of biological resources (bacteria, archaea, protists, yeasts, fungi, bacteriophages, plant viruses, genomic bacterial DNA as well as human and animal cell lines). Microorganisms and cell cultures are collected, investigated and archived at the DSMZ. As an institution of the Leibniz Association, the DSMZ with its extensive scientific services and biological resources has been a global partner for research, science and industry since 1969. The DSMZ is the first registered collection in Europe (Regulation (EU) No. 511/2014) and certified according to the quality standard ISO 9001:2015. As a patent depository, it offers the only possibility in Germany to deposit biological material in accordance with the requirements of the Budapest Treaty. In addition to scientific services, research is the second pillar of the DSMZ. The institute, located on the Science Campus Braunschweig-Süd, accommodates more than 66,500 cultures and biomaterials and has 198 employees.

The Leibniz Association
The Leibniz Association connects 95 independent research institutions that range in focus from the natural, engineering and environmental sciences via economics, spatial and social sciences to the humanities. Leibniz Institutes address issues of social, economic and ecological relevance. They conduct knowledge-driven and applied basic research, maintain scientific infrastructure and provide research-based services. The Leibniz Association identifies focus areas for knowledge transfer to policy-makers, academia, business and the public. Leibniz institutions collaborate intensively with universities – in the form of “Leibniz ScienceCampi” (thematic partnerships between university and non-university research institutes), for example – as well as with industry and other partners at home and abroad. They are subject to an independent evaluation procedure that is unparalleled in its transparency. Due to the importance of the institutions for the country as a whole, they are funded jointly by the Federation and the Länder, employing some 19,100 individuals, including 9,900 researchers. The entire budget of all the institutes is approximately 1.9 billion Euros.


Will, E.S. et al. (2018) Day and Night: Metabolic Profiles and Evolutionary Relationships of Six Axenic Non-Marine Cyanobacteria. Genome Biol. Evol. 11(1):270-294

Dr. Manuela Schüngel | idw - Informationsdienst Wissenschaft
Further information:

Further reports about: Genome Leibniz cyanobacteria genes greenhouse gas CO2 metabolic test tube

More articles from Life Sciences:

nachricht Developing a digital holography-based multimodal imaging system to visualize living cells
02.06.2020 | Kobe University

nachricht Possible physical trace of short-term memory found
02.06.2020 | Institute of Science and Technology Austria

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: New measurement exacerbates old problem

Two prominent X-ray emission lines of highly charged iron have puzzled astrophysicists for decades: their measured and calculated brightness ratios always disagree. This hinders good determinations of plasma temperatures and densities. New, careful high-precision measurements, together with top-level calculations now exclude all hitherto proposed explanations for this discrepancy, and thus deepen the problem.

Hot astrophysical plasmas fill the intergalactic space, and brightly shine in stellar coronae, active galactic nuclei, and supernova remnants. They contain...

Im Focus: Biotechnology: Triggered by light, a novel way to switch on an enzyme

In living cells, enzymes drive biochemical metabolic processes enabling reactions to take place efficiently. It is this very ability which allows them to be used as catalysts in biotechnology, for example to create chemical products such as pharmaceutics. Researchers now identified an enzyme that, when illuminated with blue light, becomes catalytically active and initiates a reaction that was previously unknown in enzymatics. The study was published in "Nature Communications".

Enzymes: they are the central drivers for biochemical metabolic processes in every living cell, enabling reactions to take place efficiently. It is this very...

Im Focus: New double-contrast technique picks up small tumors on MRI

Early detection of tumors is extremely important in treating cancer. A new technique developed by researchers at the University of California, Davis offers a significant advance in using magnetic resonance imaging to pick out even very small tumors from normal tissue. The work is published May 25 in the journal Nature Nanotechnology.

researchers at the University of California, Davis offers a significant advance in using magnetic resonance imaging to pick out even very small tumors from...

Im Focus: I-call - When microimplants communicate with each other / Innovation driver digitization - "Smart Health“

Microelectronics as a key technology enables numerous innovations in the field of intelligent medical technology. The Fraunhofer Institute for Biomedical Engineering IBMT coordinates the BMBF cooperative project "I-call" realizing the first electronic system for ultrasound-based, safe and interference-resistant data transmission between implants in the human body.

When microelectronic systems are used for medical applications, they have to meet high requirements in terms of biocompatibility, reliability, energy...

Im Focus: When predictions of theoretical chemists become reality

Thomas Heine, Professor of Theoretical Chemistry at TU Dresden, together with his team, first predicted a topological 2D polymer in 2019. Only one year later, an international team led by Italian researchers was able to synthesize these materials and experimentally prove their topological properties. For the renowned journal Nature Materials, this was the occasion to invite Thomas Heine to a News and Views article, which was published this week. Under the title "Making 2D Topological Polymers a reality" Prof. Heine describes how his theory became a reality.

Ultrathin materials are extremely interesting as building blocks for next generation nano electronic devices, as it is much easier to make circuits and other...

All Focus news of the innovation-report >>>



Industry & Economy
Event News

Dresden Nexus Conference 2020: Same Time, Virtual Format, Registration Opened

19.05.2020 | Event News

Aachen Machine Tool Colloquium AWK'21 will take place on June 10 and 11, 2021

07.04.2020 | Event News

International Coral Reef Symposium in Bremen Postponed by a Year

06.04.2020 | Event News

Latest News

Perfect optics through light scattering

02.06.2020 | Power and Electrical Engineering

The digital construction site: A smarter way of building with mobile robots

02.06.2020 | Architecture and Construction

Process behind the organ-specific elimination of chromosomes in plants unveiled

02.06.2020 | Life Sciences

Science & Research
Overview of more VideoLinks >>>