Already more than ten years ago, the finding of photosynthetically actice organisms inside sponges raised the question, how they could survive there in an otherwise presumably dark space.
Already at that time, the marine biologists Elda Gaino and Michele Sarà from Genova, Italy, hypothesized, that light might be transferred inside the sponge body.
Marine zoologists from the University of Stuttgart, and from the Leibnitz Institute for Marine Sciences at the University of Kiel, both within the research project BIOTECmarin, could now show, that the siliceous skeletal elements (spiculae) of the marine sponge Tethya aurantium in fact can transduce light, and do so in living sponges. Sponges without those spicules - like the aspicular sponge Aplysina aerophoba - are not able to transport light inside their tissue.
Herewith the scientists from Stuttgart and Kiel are the first to demonstrate light transduction inside living sponges. Until now light transduction could only be shown in explanted single spicules after laser illumination.
The authors Franz Brümmer, Martin Pfannkuchen, Alexander Baltz, Thomas Hauser and Vera Thiel published these exciting results in the Journal of Experimental Marine Biology and Ecology with the title: Light inside sponges.
Further reports about: > Aplysina aerophoba > LIGHT > Light inside sponges > Marine > Metazoa > Porifera > Sponges > amorphous, siliceous structures > dark space > first fibre-optics > inside > multicellular organisms > photosynthetically actice > phylogenetically > siliceous skeletal elements > spiculae
Molecular doorstop could be key to new tuberculosis drugs
20.03.2018 | Rockefeller University
Modified biomaterials self-assemble on temperature cues
20.03.2018 | Duke University
For the first time, an interdisciplinary team from the University of Basel has succeeded in integrating artificial organelles into the cells of live zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases, as the authors report in an article published in Nature Communications.
In the cells of higher organisms, organelles such as the nucleus or mitochondria perform a range of complex functions necessary for life. In the networks of...
Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...
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...
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...
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...
19.03.2018 | Event News
16.03.2018 | Event News
13.03.2018 | Event News
20.03.2018 | Earth Sciences
20.03.2018 | Physics and Astronomy
20.03.2018 | Information Technology