The phytochrome was purified with a modified Grimm method from etiolated rice (Oryza saliva var. HPGMR nongken 58S) seedlings incubated for 6 days in darkness.

• 以暗室培养6天的湖北光敏感核不育水稻农垦58S黄化芽为材料,采用稍加改进的Grimm等方法,提纯了光敏色素。