Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At4g33630	Together with EX2, enables higher plants to perceive singlet oxygen as a stress signal in plastid that activates a genetically determined nuclear stress response program which triggers a programmed cell death (PCD).	No verified direct reference in this release
Arabidopsis	At1g27510	Together with EX1, enables higher plants to perceive singlet oxygen as a stress signal in plastid that activates a genetically determined nuclear stress response program which triggers a programmed cell death (PCD).	No verified direct reference in this release
Rice	Os10g0485300	Together with EX2, enables higher plants to perceive singlet oxygen as a stress signal in plastid that activates a genetically determined nuclear stress response program which triggers a programmed cell death (PCD).	No verified direct reference in this release
Rice	Os01g0107900	Together with EX1, enables higher plants to perceive singlet oxygen as a stress signal in plastid that activates a genetically determined nuclear stress response program which triggers a programmed cell death (PCD).	No verified direct reference in this release