DECRYPTION – Visible to the naked eye, ‘Thiomargarita magnifica’ has a completely new internal structure.
By definition, microbes can be observed… under a microscope. But you always need exceptions to confirm the rule, and the bacteria Thiomargarita magnifica is a very big exception. This bacterium discovered in Guadeloupe is quite simply the largest known to date: it has the particularity of being visible to the naked eye! “To give you an idea of what this represents in terms of size difference compared to other bacteria, it’s a bit like a human crossing another human as high as Mount Everest”illustrates Jean-Marie Volland, a researcher at the Lawrence Berkeley National Laboratory (California) who co-authored the publication devoted to T. magnificus published in the journal Science . Apart from its extraordinary size, the bacterium has also revealed a unique internal structure which opens up new perspectives in the world of bacteriology.
To arrive at these discoveries, however, the path was particularly long. “It all started in 2009 when I noticed…