abnormal ribosome biogenesis abnormal cytosolic ribosome small subunit assembly abnormal 40S preribosome assembly abnormal ribosomal small subunit assembly during vegetative growth abnormal ribosomal small subunit assembly during mitotic cell cycle midori FYPO:0007069 2019-08-27T15:23:17Z abnormal 40S ribosomal subunit assembly abnormal pre-40S ribosome assembly A cell phenotype observed in the vegetative growth phase of the life cycle in which assembly of the cytosolic ribosomal small subunit is abnormal.