バイオフィルム Stochastic pulsing of gene expression enables the generation of spatial patterns in Bacillus subtilis biofilms Nadezhdin E, Murphy N, Dalchau N, Phillips A, Locke JCW. Nat Commun. 2020 Feb 19;11(1):950. doi: 10.1038/s41467... 2020.12.25 バイオフィルム