Subtiliswelt – Films & Documentaries
Hundreds of bioactive compounds. A single microorganism. 27 minutes that could change the way you see Bacillus subtilis.
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Why does Bacillus subtilis fascinate me so much?
Because I want people to understand what an incredible wonder this tiny microorganism truly is.
Imagine holding a single Bacillus subtilis spore in your hand.
It measures only about one thousandth of a millimeter.
So tiny that millions of them could fit on the tip of your finger.
And yet every single spore contains the potential of a complete biological factory.
No factory made of steel.
No conveyor belts.
No robots.
And yet it contains hundreds of biological production lines.
The moment the spore awakens, it begins to work.
It produces not just a few substances but—depending on the strain and environmental conditions—an impressive variety of biological molecules.
What can this biological factory produce?
Biological tools for countless chemical reactions.
Molecules used to compete with and defend against other microorganisms.
Including various B vitamins and, in suitable strains, vitamin K₂.
Organic acids and numerous other biological molecules.
The fundamental building blocks of many biological structures and processes.
Components of biofilms and complex microbial communities.
Molecules used for communication with other bacteria.
So-called VOCs (volatile organic compounds), which can exert biological effects even over a distance.
Specialized molecules that bind and transport iron.
Small protein compounds with a wide range of biological functions.
And the most remarkable part?
This is probably only the beginning.
More than 70 different types of enzymes have already been described.
In addition, there are numerous peptides, lipopeptides, signaling molecules, polymers, vitamins, and many other metabolic products.
Overall, Bacillus subtilis has the potential to produce hundreds of different molecules—depending on the strain and the environmental conditions.
A factory that continuously adapts its production
Builds cars.
Brews beer.
Produces fuel.
Bacillus subtilis, on the other hand, constantly analyzes its environment and continuously adapts its production.
Which genes are needed right now?
Which molecules should be produced?
Which production pathways should be downregulated?
Which ones should be upregulated?
No brain.
No nervous system.
No computer.
All of this takes place within a single cell.
Guided solely by a genetic blueprint shaped over billions of years of evolution.
That is exactly why Bacillus subtilis fascinates me.
Not because of a single molecule.
But because every single spore carries the potential of a highly complex biological factory.
The more I learn about this microorganism, the greater my respect for it becomes.
Perhaps you'll feel the same after watching this film.