Ouyang Guangcha, Ying Chuyan, Wo Shaogen, Xue Yinglong. Studies on plant phenylalanine ammonia-lyase(PAL)Ⅵ: Purification and some properties of PAL from etiolated seedlings of rice (Oryza sativa)and wheat (Triticum aestivum). Acta Physiol Sin 1985; 37 (2): (in Chinese with English abstract).