Editing Programmed cell death (section)

===PCD in pollen prevents inbreeding===
During [[pollination]], plants enforce [[Self-incompatibility in plants|self-incompatibility]] ('''SI''') as an important means to prevent [[Biological reproduction|self-fertilization]]. Research on the [[corn poppy]] (''Papaver rhoeas'') has revealed that [[protein]]s in the [[pistil]] on which the [[pollen]] lands, interact with pollen and trigger PCD in incompatible (i.e., ''self'') pollen. The researchers, Steven G. Thomas and [[Vernonica Franklin-Tong|Vernonica E. Franklin-Tong]], also found that the response involves rapid inhibition of [[Pollen tube|pollen-tube]] growth, followed by PCD.<ref>
{{cite journal
 |vauthors=Thomas SG, Franklin-Tong VE |year = 2004
 |title = Self-incompatibility triggers programmed cell death in Papaver pollen
 |journal = [[Nature (journal)|Nature]]
 |volume = 429 |issue = 6989 |pages = 305–9
 |pmid = 15152254
 |doi = 10.1038/nature02540
|bibcode = 2004Natur.429..305T
 |s2cid = 4376774
 }}</ref>