Those giant white hair looking things. Each one is a **single cell** bacteria. It is the largest bacteria known to man with each cell growing up to 2mm. You can see them with the naked eye and they are even strong enough to be picked up.
They are also unique as they are the only bacteria where the dna has a nucleus like membrane around it.
"My skepticism about the authors' claim that the genome of 𝘛. 𝘮𝘢𝘨𝘯𝘪𝘧𝘪𝘤𝘢 is localized in membrane-bound compartments ─ which they call "pepins" ─ stems from the fact that their technically excellent EM images do not show a continuous membrane, at least not in one focal plane (Figure 4, F+G)."
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https://schaechter.asmblog.org/schaechter/2022/05/magnificently-long-thiomargarita-magnifica.html
Not my area of expertise, but you seem to know what your talking about. I'll give a read to the link if I remember tomorrow but I boosted because this is all very interesting.
@STCmicrobeblog I would expect nothing less!