autophagy nucleophagy 2015-06-12T01:58:26Z APO:0000341 Selective degradation of nucleoplasm that occurs upon nitrogen starvation, in which parts of the nucleus and perinuclear ER are packaged into autophagosomes and delivered to the vacuole for degradation. In S. cerevisiae, Atg39p is involved in this process. mariacostanzo observable