Cell migrations during morphogenesis: Some clues from the slug of Dictyostelium discoideum

✍ Scribed by Keith L. Williams; Phil. H. Vardy; Lee A. Segel

• Publisher: John Wiley and Sons
• Year: 1986
• Tongue: English
• Weight: 684 KB
• Volume: 5
• Category: Article
• ISSN: 0265-9247
• DOI: 10.1002/bies.950050403

✦ Synopsis

Starvation induces free-living Dictyostelium discoideum amoebae to form slugs that typically contain 100,000 cells. Only recently have suficient clues become available to suggest how coordinated cell actions might result in slug movement. We propose a 'squeeze-pull' model that involves circumferential cells squeezing forward a cellular core, followed by pulling up of the rear. This model takes into account the diflerent classes of cells in the slug; it is proposed that prestalk cells are engines and prespore cells are the cargo.