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| 桃果实发育过程中山梨醇及酶活性变化 | |
| 引用本文： | 杨爱珍,张志毅,孟海玲,王一鸣,李楠,关伟,王有年.桃果实发育过程中山梨醇及酶活性变化[J].林业科学,2009,45(5). |
| 作者姓名： | 杨爱珍 张志毅 孟海玲 王一鸣 李楠 关伟 王有年 |
| 作者单位： | 1. 北京林业大学,北京,100083;北京农学院生物技术系,北京,102206 2. 北京林业大学,北京,100083 3. 农业应用新技术北京市重点实验室,北京,102206 4. 中国农业大学农学与生物技术学院,北京,100094 5. 北京市平谷区人民政府果品办公室,北京,101200 |
| 基金项目： | 国家基金，北京市自然科学基金重点项目，北京市属高校人才强教深化计划，北京农学院青年基金 |
| 摘 要： | 碳水化合物的种类和含量是决定果实品质的重要因素,果实中碳水化合物的转化、积累除受内源激素、韧皮部卸载等因子影响外,很大程度上依靠其代谢相关酶活性的调控.糖是植物生长、发育的一个重要的、多重的角色,是果实生长发育的基础物质,同时为果实细胞膨大提供渗透动力.山梨醇属于糖醇类,是山梨糖光合同化产物,可以作为可溶性贮存物质,也可作为类似于蔗糖的一种同化物运输物质.此外,山梨醇与提高植物的抗逆性、改善果实风味也有关(周睿等,1993;Beruter et al.,1997),其在果实内能通过其代谢酶被迅速转化(周睿等,1993;Bianco et al.,2002),山梨醇脱氢酶(sorbitoldehydrogenase,SDH)和山梨醇氧化酶(sorbitol oxidase,SOX)是参与山梨醇代谢的关键酶,其中SDH催化山梨醇转化成果糖与葡萄糖,SOX催化山梨醇氧化成葡萄糖(周睿等,1993;Yamaki et al.,1986). |
| 关 键 词： | 桃 果实发育 山梨醇 酶活性 |
Changes in Sorbitol Content and Its Related Enzyme Activities during Peach Fruit Development |
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| Yang Aizhen,Zhang Zhiyi,Meng Hailing,Wang Yiming,Li Nan,Guan Wei,Wang Younian.Changes in Sorbitol Content and Its Related Enzyme Activities during Peach Fruit Development[J].Scientia Silvae Sinicae,2009,45(5). | |
| Authors: | Yang Aizhen Zhang Zhiyi Meng Hailing Wang Yiming Li Nan Guan Wei Wang Younian |
| Institution: | 1.Beijing Forestry University Beijing 10083;2.Department of Biotechnology;Beijing University of Agriculture Beijing 102206;3.Beijing Key Laboratory of New Technology in Agriculture Application Beijing 102206;4. Agriculture and Biotechnology Academe of China Agricultural University Beijing 100094;5.Pinggu District Government Bureau of Fruit in Beijing Beijing 101200 |
| Abstract: | The sorbitol,fructose and glucose contents and the changes in activities of sorbitol oxidase (SOX),sorbitol dehydrogenase (SDH),which are the enzymes participated in sorbitol metabolism,were investigated respectively in the endocarp,mesocarp,leaf and phloem during the development of fruits of 'Jingyu'and 'Okubao' peach. The results demonstrated that the pattems of sugar accumulation were analogous in the two varieties. In addition,sorbitol content in leaf was the highest in leaf,followed by that in phloem,a... |
| Keywords: | peach fruit development sorbitol enzyme activities |
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