This can be compared to a simple form of photosynthesis, where marine bacteria use energy from sunlight to absorb carbon dioxide. It was previously known that bacteria in oxygen-starved lakes can have this capacity, but it's new knowledge that bacteria in the open seas can do so as well.
This challenges earlier knowledge that algae are the only organisms that capture carbon dioxide in the surface water exposed to sunlight. It remains unknown just how much carbon dioxide is captured by these bacteria.
"Even if it turns out that only a tiny fraction of carbon dioxide is captured by the bacteria, this can have an enormous impact, since more than 100 million tons of carbon dioxide is captured daily by algae through photosynthesis in the oceans. Bacteria may prove to take up millions of tons. We need to study this more," says Jarone Pinhassi, associate professor of marine microbiology at Kalmar University and one of the researchers behind the discovery.
Recently Jarone Pinhassi and his colleagues discovered that marine bacteria use sunlight as a source of energy, owing to a unique light-capturing pigment, proteorhodopsin, which is found in nearly half of sea bacteria. Oceans cover about 70 percent of the earth's surface, and there is a constant exchange of carbon dioxide between the atmosphere and the sea. Knowledge of marine bacteria may come to be of major importance to our understanding of what the climate impact of rising carbon dioxide emissions means for the oceans.
"How many bacteria in the oceans have the ability to take up carbon dioxide and how much carbon dioxide they capture are exciting questions for the future. Many scientists are going to want to research this," Jarone Pinhassi believes.
Jarone Pinhassi and doctoral candidate Laura Gómez-Consarnau at Kalmar University are the Swedish researchers who worked with the current study. Read the entire article, published this week on the home page for Proceedings of the National Academy of Science, USA: www.pnas.org
Anna Strömblad | idw
Reducing household waste with less energy
18.01.2017 | FIZ Karlsruhe – Leibniz-Institut für Informationsinfrastruktur GmbH
Joint research project on wastewater for reuse examines pond system in Namibia
19.12.2016 | Technische Universität Darmstadt
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).
Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...
10.01.2017 | Event News
09.01.2017 | Event News
05.01.2017 | Event News
18.01.2017 | Materials Sciences
18.01.2017 | Information Technology
18.01.2017 | Ecology, The Environment and Conservation