elongated vegetative cell elongated vegetative cell with central constriction cell morphology, long dumbbell elongated dumbbell morphology cell morphology, elongated dumbbell 2015-12-07T13:54:25Z A cell morphology phenotype observed in the vegetative growth phase of the life cycle in which a cell is elongated and has an abnormal shape featuring a constriction at the center of the cell, corresponding to the cell division site. In some such cells, the diameter at the ends is much greater than in wild-type cells. elongated dumbbell-shaped vegetative cell elongated cell with central constriction during vegetative growth midori elongated cell with central constriction during mitotic cell cycle elongated swollen vegetative cell with constricted region at cell division site Note that cell with this phenotype, often called dumbbell-shaped, are usually also elongated. The distinction between this phenotype and swollen elongated cells (FYPO:0001429) is that dumbbell-shaped cells have a constriction along the long axis, whereas swollen elongated cells do not. Note that if you have done an experiment that assays the viability of a population of cells, such as looking at colony growth or growth in liquid culture, you should also annotate to 'inviable cell population' (FYPO:0002059) or one of its descendants. FYPO:0005115