| 果胶降解相关酶与果实成熟软化 |
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| 引用本文： | 佟兆国,王飞,高志红,周军,徐秋红,章镇. 果胶降解相关酶与果实成熟软化[J]. 果树学报, 2011, 0(2): 305-312 |
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| 作者姓名： | 佟兆国 王飞 高志红 周军 徐秋红 章镇 |
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| 作者单位： | 南京农业大学园艺学院;西南林学院资源学院;北京市农林科学院林业果树研究所; |
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| 基金项目： | 公益性行业(农业)科研专项(201003058) |
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| 摘 要： | 果胶降解相关酶广泛存在于植物体的各个部分,目前在果实组织中已发现多种,主要包括内切多聚半乳糖醛酸酶、外切多聚半乳糖醛酸酶、果胶甲酯酶、果胶裂解酶、B-半乳糖苷酶、α-L-阿拉伯呋喃糖苷酶和鼠李糖半乳糖醛酸酶,此类酶能使果胶多糖发生降解,进而使细胞间失去黏结作用,胞壁结构瓦解,从而导致果实组织松弛,质地下降.综述了果胶降...
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| 关 键 词： | 果实成熟软化 果胶 酶 基因 |
Advances in research on the relationship between pectolytic enzymes and fruit softening |
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| TONG Zhao-guo,WANG Fei,GAO Zhi-hong,ZHOU Jun,XU Qiu-hong,ZHANG Zhen. Advances in research on the relationship between pectolytic enzymes and fruit softening[J]. Journal of Fruit Science, 2011, 0(2): 305-312 |
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| Authors: | TONG Zhao-guo WANG Fei GAO Zhi-hong ZHOU Jun XU Qiu-hong ZHANG Zhen |
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| Affiliation: | TONG Zhao-guo1,WANG Fei1,GAO Zhi-hong1,ZHOU Jun2,XU Qiu-hong3,ZHANG Zhen1(1College of Horticulture,Nanjing Agricultural University,Nanjing,Jiangsu 210095 China,2Scholl of Resource Management,Southwest Forestry College,Kunming,Yunnan 650224 China,3Institute of Forestry and Pomology,Beijing Academy of Agricultural and Forestry Sciences,Beijing 100093 China) |
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| Abstract: | Pectolytic enzymes are widespread in plants and mainly include pectinmethylesterase(PME),pectate lyase(PEL),endo-polygalacturonase(endo-PG),exo-polygalacturonase(exo-PG),β-galactosidase,α-L-arabinofuranosidase and rhamnogalacturonase in fruit tissues.They constitute a unique group of enzymes that are responsible for the degradation of pectin and pectic substances in fruit cell walls,and make cell-to-cell separation and disassembly of the cell wall structure and lead to fruit-tissue softening.This review summarizes our current knowledge about pectolytic enzymes and their corresponding genes that participate in the degradation of pectin polysaccharides in fruit plants.In addition,the existing problems and direction of fruit softening study in near future are put forward. |
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| Keywords: | Fruit softening Pectin Enzymes Genes |
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