has part has part has_part characteristic of inheres_in happens during abnormal heterochromatin organization during vegetative growth increased duration of heterochromatin maintenance FYPO:0004544 midori increased duration of heterochromatin maintenance during vegetative growth increased duration of heterochromatin maintenance during mitotic cell cycle prolonged heterochromatin maintenance A cellular process phenotype observed in the vegetative growth phase of the life cycle in which the duration of heterochromatin maintenance is longer than normal. Heterochromatin maintenance is the process that preserves heterochromatin in a stable functional or structural state. 2015-04-02T15:14:36Z obsolete heterochromatin maintenance single-celled organism vegetative growth phase increased duration