ISSN 0371-0874, CN 31-1352/Q

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植物苯丙氨酸解氨酶的研究 Ⅵ:水稻、小麦PAL的纯化及基本特性

欧阳光察, 应初衍, 沃绍根, 薛应龙

复旦大学生物系

摘要

分离纯化了水稻和小麦苯丙氨酸解氨酶(PAL)。水稻和小麦的PAL都具有一定的耐热性,但前 者略高于后者;两者的最适pH都在碱侧,前者为9.2,后者为8.8;并均能被巯基试剂NEM所抑制,水稻的PAL比活远较小麦的高。分析不同来源PAL的氨基酸百 分组成,发现水稻的酸性氨基酸 成分少于小麦;而中性及碱性氨基酸成分则高于小麦。用SDS电泳测得小麦亚基分子量为70000而水稻则为57500,推测小麦,水稻PAL全酶分子量别为28000 0与230000D。图12表2参23

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)

Ouyang Guangcha, Ying Chuyan, Wo Shaogen, Xue Yinglong

Dept. Biol., Fudan Univ.

Abstract

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引用本文:

欧阳光察, 应初衍, 沃绍根, 薛应龙. 植物苯丙氨酸解氨酶的研究 Ⅵ:水稻、小麦PAL的纯化及基本特性[J]. 生理学报 1985; 37 (2): .

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).