出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2011/05/23 23:16 UTC 版)
Programmed cell-death (or PCD) is death of a cell in any form, mediated by an intracellular program. PCD is carried out in a regulated process which generally confers advantage during an organism's life-cycle. PCD serves fundamental functions during both plant and metazoa (multicellular animals) tissue development.