has_part exists_during towards abnormal nuclear envelope morphology during vegetative growth excess nuclear envelope present midori excess nuclear envelope present during mitotic cell cycle A physical cellular phenotype observed in the vegetative growth phase of the life cycle in which cells contain more nuclear envelope than normal. Excess nuclear envelopes may take the form of intranuclear membrane stacks or invaginations, or small cytoplasmic spheres that are attached to the nucleus, have double lipid bilayer membranes, and may contain structures resembling nuclear pores. nuclear envelope present in greater amount 2012-09-14T15:22:32Z FYPO:0001556 excess nuclear envelope present during vegetative growth increased nuclear envelope proliferation