Their study, published in Microbiological Research, reveals that bacteria can evolve by losing their flagella, the structures responsible for movement. Flagella are important for bacteria because ...

But virtually all other cells have a primary cilium. Likewise, for many years it was generally assumed that the entire phylum Nematoda, comprising roundworms, completely lacked cilia or flagella.

but this requires that all cilia in a tissue orient the same way. Earlier studies indicated that both planar cell polarity (PCP) signalling and cilia-generated fluid flows could influence ciliary ...