A robust allrounder

This gorgeous image of a stained adult marine worm was created by former EMBL postdoc Hernando Martinez using structured microscopy. The worm itself was captured during plankton extraction off the coast of Sweden. There are over 10 000 species of these swimming worms, and they have adapted to every imaginable marine habitat.

Each body segment has a pair of fleshy protrusions that bear many bristles made of chitin. Therefore, they are sometimes called bristle worms. Polychaetes, as a class, are extremely robust and widespread: species can be found in the coldest oceans but also near hydrothermal vents, and from the ocean’s surface to its greatest depths.

Image: Hernando Martinez/EMBL

Tags: Picture of the Week, Polychaetes, sweden, worm

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Picture of the week

To study the effect of commonly used drugs on bacterial envelopes, EMBL scientists applied a biochemical assay using a colour reaction. The deeper the red, the stronger the disruptive effect of the drug.

By  Marius Bruer

A metal rack holding glass test tubes with yellow and red solutions in them.


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