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细胞壁酶活性与甜橙果实质地的相关性研究
引用本文:李春燕,张光伦,曾秀丽,罗楠,胡强.细胞壁酶活性与甜橙果实质地的相关性研究[J].四川农业大学学报,2006,24(1):73-76.
作者姓名:李春燕  张光伦  曾秀丽  罗楠  胡强
作者单位:1. 四川农业大学,林学园艺学院,四川,雅安,625014
2. 四川省农业厅,成都,610041
基金项目:四川省科技攻关项目;四川省农业资源区划重点项目
摘    要:对在中亚热带生态类型的江安罗伯逊脐橙和伏令夏橙果实生长发育全过程中的果胶甲酯酶(PE)、多聚半乳糖醛酸酶(PG)、纤维素酶(Cx)与果胶、半纤维素(hemicellulose,HC)、木质素(lignin)等果实质地成分的相关动态变化的研究结果表明:PE、PG和Cx在果实生长发育过程中一直存在,不同种类甜橙的PE、PG活性都以成熟期为转折点;随着PG和PE两种酶活性的增加,果胶物质分解,果实硬度下降,Cx活性对细胞壁中难溶态半纤维素含量影响最大;随着果实的生长发育进程,果实内木质素的含量呈现急剧下降的趋势。

关 键 词:甜橙  果胶甲酯酶  多聚半乳糖醛酸酶  纤维素酶  果实质地
文章编号:1000-2650(2006)01-0073-04
收稿时间:2006-02-21
修稿时间:2006年2月21日

The Relationship between the Activity of Enzyme in Cell Wall and Sweet Orange [ Citrus sinesis (L.) Osbeck] Fruit Texture
LI Chun-yan,ZHANG Guang-lun,ZENG Xiu-li,LUO Nan,HU Qiang.The Relationship between the Activity of Enzyme in Cell Wall and Sweet Orange [ Citrus sinesis (L.) Osbeck] Fruit Texture[J].Journal of Sichuan Agricultural University,2006,24(1):73-76.
Authors:LI Chun-yan  ZHANG Guang-lun  ZENG Xiu-li  LUO Nan  HU Qiang
Institution:1. College of Forestry and Horticulture, Sichuan Agricultural University, Yaan 625014, Sichuan, China; 2. Agricultural Department of Sichuan Province, Chengdu 610041, China
Abstract:This study of Navel orange and Valencia orange is about the relationship between enzymes of Cx, PE, PG and fruit texture components including pectin, cellulose and lignin. The results show: The Cx, PE and PG enzyme exist during the development of orange fruit; different cultivars have a milestone about PE and PG while the orange is mature. While the reactivity of all three enzymes increases, the content of pectin and the hardness decreases. The activity of Cx largely infuluences the hemicellulose which is difficult to dissolved. Following the growth of the fruit, the lignin in the fruit decreases rapidly.
Keywords:sweet orange  Cx  PE  PG  fruit texture  
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