摘要
果胶是一种结构性多聚糖,也是植物细胞壁的主要成分。果胶裂解酶(PL)则是一类通过β反式消除作用切割α 1,4 糖苷键,降解去甲酯化果胶产生寡聚糖的酶类。PL 的研究将有助于了解植物细胞壁的代谢网络并促进其在食品、造纸、纺织和生物能源等行业中的工业化应用。本文总结了 30 年来植物果胶裂解酶基因(PL)的鉴定及功能研究的进展情况,归纳了 PL 在植物生长发育、花器官发育、果实成熟软化、植物与病原微生物的相互作用以及过敏性反应中的生物学功能,并对 PL 的未来研究进行了展望。
Pectin is a structural polysaccharide and servers as a major component of plant cell wall. Pectate lyase (PL) is an enzyme that degrades demethylated pectin by cleavage of α-1,4-glycosidic bonds of the polygalacturonic acid via β-elimination reaction. The study of PL is helpful for better understanding on the metabolic network of the cell wall and for industrial applications such as food, paper, textile and biofuel productions. A large number of pectate lyase (PL) genes have been isolated from a wide range of plants. Functional researches demonstrated that PL genes were involved in various physiological processes in plants, including growth and development, floral development, fruit ripening and softening, plant-pathogen interaction, and allergenic reaction. In this review, we summarize identification and functional study of plant PL genes in the past 30 years, and give prospects for the further study of PL genes.
作者
陈乐天
王慧婷
韩靖鸾
栾莹
CHEN Letian;WANG Huiting;HAN Jingluan;LUAN Ying(College of Life Sciences, South China Agricultural University, Guangzhou 510642, China)
出处
《华南农业大学学报》
CAS
CSCD
北大核心
2019年第5期71-77,共7页
Journal of South China Agricultural University
基金
广州市科创委重点项目(201707020016)
国家级大学生创新训练项目(201710564237)
