Embedding was in araldite and sections were stained with uranyl acetate and lead citrate. Samples were viewed in a JEOL 200CX electron microscope. Regions of the specimen with negligible ice crystal damage were chosen for analysis. We are indebted to J. Waterbury, F. Valois, and B. Brahamsha for kindly providing bacterial cultures and for helpful discussions. ADTS was supported by the Rowland Institute for Science and is an Amgen Fellow of the Life Sciences Research Foundation.
Bacteria swim by rotating their flagellar filaments.
The role of an alternative sigma factor in motility and pilus formation in the cyanobacterium Synchecocystis sp. strain PCC6803. An abundant cell-surface polypeptide is required for swimming by the nonflagellated marine cyanobacterium Synechococcus . Non-flagellar swimming in marine Synechococcus. Envelope structure of four gliding filamentous cyanobacteria. Beginning of exocytosis captured by rapid-freezing of Limulus amebocytes.