abnormal nucleolar morphology abnormal dense body present in nucleolus abnormal dense body present in nucleolus during vegetative growth abnormal dense body present in nucleolus during mitotic cell cycle midori 2014-08-18T13:14:45Z FYPO:0003698 A physical cellular phenotype observed in the vegetative growth phase of the life cycle in which the nucleolus contains one or more spherical structures of great electron density that are not found in wild type cells.