摘要
多酚氧化酶(polyphenol oxidase,PPO)是一类普遍存在于植物、真菌和昆虫质体中,由核基因编码,能与铜相结合的金属蛋白酶。它能分别催化单酚羟基和二羟基酚氧化为O-二酚和O-醌。植物多酚氧化酶是许多果蔬等农产品酶促褐变的主要原因,同时它在植物的光合作用、抗病虫害、生长发育以及花色的形成中起一定作用。本文综述了植物多酚氧化酶在细胞学、分子遗传学及其生产应用等方面的研究进展。
Polyphenol oxidase (PPO) is a ubiquitous copper metalloprotein in the plastids of many plants, fungi and insects. It catalyzes 2 distinct reactions: the hydroxylation of monophenols to o-diphenols and the dehydrogenation of o-dihydroxyphenols to o-quinones. It is believed to be the primary response for the deleterious browning of many fruits and vegetables and is thought to be involved in plant photosynthesis, plant-pest interactions, growth and development, and flower coloration. The present review attempts to highlight the recent advances in research of polyphenol oxidase in cellular and molecular genetics and production.
出处
《植物学通报》
CSCD
北大核心
2005年第2期215-222,共8页
Chinese Bulletin of Botany
